diff --git a/src/node/coinstats.cpp b/src/node/coinstats.cpp
index 0aa569047..a010e66ad 100644
--- a/src/node/coinstats.cpp
+++ b/src/node/coinstats.cpp
@@ -1,80 +1,105 @@
 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <node/coinstats.h>
 
 #include <coins.h>
 #include <hash.h>
 #include <serialize.h>
 #include <util/system.h>
 #include <validation.h>
 
 #include <map>
 
 static uint64_t GetBogoSize(const CScript &scriptPubKey) {
     return 32 /* txid */ + 4 /* vout index */ + 4 /* height + coinbase */ +
            8 /* amount */ + 2 /* scriptPubKey len */ +
            scriptPubKey.size() /* scriptPubKey */;
 }
 
 static void ApplyStats(CCoinsStats &stats, CHashWriter &ss, const uint256 &hash,
                        const std::map<uint32_t, Coin> &outputs) {
     assert(!outputs.empty());
     ss << hash;
     ss << VARINT(outputs.begin()->second.GetHeight() * 2 +
                  outputs.begin()->second.IsCoinBase());
     stats.nTransactions++;
     for (const auto &output : outputs) {
         ss << VARINT(output.first + 1);
         ss << output.second.GetTxOut().scriptPubKey;
         ss << VARINT_MODE(output.second.GetTxOut().nValue / SATOSHI,
                           VarIntMode::NONNEGATIVE_SIGNED);
         stats.nTransactionOutputs++;
         stats.nTotalAmount += output.second.GetTxOut().nValue;
         stats.nBogoSize += GetBogoSize(output.second.GetTxOut().scriptPubKey);
     }
     ss << VARINT(0u);
 }
 
 //! Calculate statistics about the unspent transaction output set
-bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats,
-                  const std::function<void()> &interruption_point) {
+template <typename T>
+static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats, T hash_obj,
+                         const std::function<void()> &interruption_point) {
     stats = CCoinsStats();
     std::unique_ptr<CCoinsViewCursor> pcursor(view->Cursor());
     assert(pcursor);
 
-    CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
     stats.hashBlock = pcursor->GetBestBlock();
     {
         LOCK(cs_main);
         stats.nHeight = LookupBlockIndex(stats.hashBlock)->nHeight;
     }
-    ss << stats.hashBlock;
+
+    PrepareHash(hash_obj, stats);
+
     uint256 prevkey;
     std::map<uint32_t, Coin> outputs;
     while (pcursor->Valid()) {
         interruption_point();
         COutPoint key;
         Coin coin;
         if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
             if (!outputs.empty() && key.GetTxId() != prevkey) {
-                ApplyStats(stats, ss, prevkey, outputs);
+                ApplyStats(stats, hash_obj, prevkey, outputs);
                 outputs.clear();
             }
             prevkey = key.GetTxId();
             outputs[key.GetN()] = std::move(coin);
             stats.coins_count++;
         } else {
             return error("%s: unable to read value", __func__);
         }
         pcursor->Next();
     }
     if (!outputs.empty()) {
-        ApplyStats(stats, ss, prevkey, outputs);
+        ApplyStats(stats, hash_obj, prevkey, outputs);
     }
-    stats.hashSerialized = ss.GetHash();
+
+    FinalizeHash(hash_obj, stats);
+
     stats.nDiskSize = view->EstimateSize();
     return true;
 }
+
+bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats,
+                  CoinStatsHashType hash_type,
+                  const std::function<void()> &interruption_point) {
+    switch (hash_type) {
+        case (CoinStatsHashType::HASH_SERIALIZED): {
+            CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
+            return GetUTXOStats(view, stats, ss, interruption_point);
+        }
+    } // no default case, so the compiler can warn about missing cases
+    assert(false);
+}
+
+// The legacy hash serializes the hashBlock
+static void PrepareHash(CHashWriter &ss, CCoinsStats &stats) {
+    ss << stats.hashBlock;
+}
+
+static void FinalizeHash(CHashWriter &ss, CCoinsStats &stats) {
+    stats.hashSerialized = ss.GetHash();
+}
diff --git a/src/node/coinstats.h b/src/node/coinstats.h
index 90503e8ea..d4a90c1d3 100644
--- a/src/node/coinstats.h
+++ b/src/node/coinstats.h
@@ -1,36 +1,41 @@
 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_NODE_COINSTATS_H
 #define BITCOIN_NODE_COINSTATS_H
 
 #include <amount.h>
 #include <primitives/blockhash.h>
 #include <uint256.h>
 
 #include <cstdint>
 #include <functional>
 
 class CCoinsView;
 
+enum class CoinStatsHashType {
+    HASH_SERIALIZED,
+};
+
 struct CCoinsStats {
     int nHeight{0};
     BlockHash hashBlock{};
     uint64_t nTransactions{0};
     uint64_t nTransactionOutputs{0};
     uint64_t nBogoSize{0};
     uint256 hashSerialized{};
     uint64_t nDiskSize{0};
     Amount nTotalAmount{Amount::zero()};
 
     //! The number of coins contained.
     uint64_t coins_count{0};
 };
 
 //! Calculate statistics about the unspent transaction output set
 bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats,
+                  const CoinStatsHashType hash_type,
                   const std::function<void()> &interruption_point = {});
 
 #endif // BITCOIN_NODE_COINSTATS_H
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 29492fea3..929e5f57f 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -1,2979 +1,2991 @@
 // Copyright (c) 2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <rpc/blockchain.h>
 
 #include <amount.h>
 #include <blockdb.h>
 #include <blockfilter.h>
 #include <chain.h>
 #include <chainparams.h>
 #include <checkpoints.h>
 #include <coins.h>
 #include <config.h>
 #include <consensus/validation.h>
 #include <core_io.h>
 #include <hash.h>
 #include <index/blockfilterindex.h>
 #include <network.h>
 #include <node/coinstats.h>
 #include <node/context.h>
 #include <node/utxo_snapshot.h>
 #include <policy/policy.h>
 #include <primitives/transaction.h>
 #include <rpc/server.h>
 #include <rpc/util.h>
 #include <script/descriptor.h>
 #include <streams.h>
 #include <txdb.h>
 #include <txmempool.h>
 #include <undo.h>
 #include <util/ref.h>
 #include <util/strencodings.h>
 #include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <validationinterface.h>
 #include <versionbitsinfo.h> // For VersionBitsDeploymentInfo
 #include <warnings.h>
 
 #include <condition_variable>
 #include <cstdint>
 #include <memory>
 #include <mutex>
 
 struct CUpdatedBlock {
     BlockHash hash;
     int height;
 };
 
 static Mutex cs_blockchange;
 static std::condition_variable cond_blockchange;
 static CUpdatedBlock latestblock GUARDED_BY(cs_blockchange);
 
 NodeContext &EnsureNodeContext(const util::Ref &context) {
     if (!context.Has<NodeContext>()) {
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Node context not found");
     }
     return context.Get<NodeContext>();
 }
 
 CTxMemPool &EnsureMemPool(const util::Ref &context) {
     NodeContext &node = EnsureNodeContext(context);
     if (!node.mempool) {
         throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED,
                            "Mempool disabled or instance not found");
     }
     return *node.mempool;
 }
 
 ChainstateManager &EnsureChainman(const util::Ref &context) {
     NodeContext &node = EnsureNodeContext(context);
     if (!node.chainman) {
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Node chainman not found");
     }
     return *node.chainman;
 }
 
 /**
  * Calculate the difficulty for a given block index.
  */
 double GetDifficulty(const CBlockIndex *blockindex) {
     CHECK_NONFATAL(blockindex);
 
     int nShift = (blockindex->nBits >> 24) & 0xff;
     double dDiff = double(0x0000ffff) / double(blockindex->nBits & 0x00ffffff);
 
     while (nShift < 29) {
         dDiff *= 256.0;
         nShift++;
     }
     while (nShift > 29) {
         dDiff /= 256.0;
         nShift--;
     }
 
     return dDiff;
 }
 
 static int ComputeNextBlockAndDepth(const CBlockIndex *tip,
                                     const CBlockIndex *blockindex,
                                     const CBlockIndex *&next) {
     next = tip->GetAncestor(blockindex->nHeight + 1);
     if (next && next->pprev == blockindex) {
         return tip->nHeight - blockindex->nHeight + 1;
     }
     next = nullptr;
     return blockindex == tip ? 1 : -1;
 }
 
 UniValue blockheaderToJSON(const CBlockIndex *tip,
                            const CBlockIndex *blockindex) {
     // Serialize passed information without accessing chain state of the active
     // chain!
     // For performance reasons
     AssertLockNotHeld(cs_main);
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("hash", blockindex->GetBlockHash().GetHex());
     const CBlockIndex *pnext;
     int confirmations = ComputeNextBlockAndDepth(tip, blockindex, pnext);
     result.pushKV("confirmations", confirmations);
     result.pushKV("height", blockindex->nHeight);
     result.pushKV("version", blockindex->nVersion);
     result.pushKV("versionHex", strprintf("%08x", blockindex->nVersion));
     result.pushKV("merkleroot", blockindex->hashMerkleRoot.GetHex());
     result.pushKV("time", int64_t(blockindex->nTime));
     result.pushKV("mediantime", int64_t(blockindex->GetMedianTimePast()));
     result.pushKV("nonce", uint64_t(blockindex->nNonce));
     result.pushKV("bits", strprintf("%08x", blockindex->nBits));
     result.pushKV("difficulty", GetDifficulty(blockindex));
     result.pushKV("chainwork", blockindex->nChainWork.GetHex());
     result.pushKV("nTx", uint64_t(blockindex->nTx));
 
     if (blockindex->pprev) {
         result.pushKV("previousblockhash",
                       blockindex->pprev->GetBlockHash().GetHex());
     }
     if (pnext) {
         result.pushKV("nextblockhash", pnext->GetBlockHash().GetHex());
     }
     return result;
 }
 
 UniValue blockToJSON(const CBlock &block, const CBlockIndex *tip,
                      const CBlockIndex *blockindex, bool txDetails) {
     // Serialize passed information without accessing chain state of the active
     // chain!
     // For performance reasons
     AssertLockNotHeld(cs_main);
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("hash", blockindex->GetBlockHash().GetHex());
     const CBlockIndex *pnext;
     int confirmations = ComputeNextBlockAndDepth(tip, blockindex, pnext);
     result.pushKV("confirmations", confirmations);
     result.pushKV("size", (int)::GetSerializeSize(block, PROTOCOL_VERSION));
     result.pushKV("height", blockindex->nHeight);
     result.pushKV("version", block.nVersion);
     result.pushKV("versionHex", strprintf("%08x", block.nVersion));
     result.pushKV("merkleroot", block.hashMerkleRoot.GetHex());
     UniValue txs(UniValue::VARR);
     for (const auto &tx : block.vtx) {
         if (txDetails) {
             UniValue objTx(UniValue::VOBJ);
             TxToUniv(*tx, uint256(), objTx, true, RPCSerializationFlags());
             txs.push_back(objTx);
         } else {
             txs.push_back(tx->GetId().GetHex());
         }
     }
     result.pushKV("tx", txs);
     result.pushKV("time", block.GetBlockTime());
     result.pushKV("mediantime", int64_t(blockindex->GetMedianTimePast()));
     result.pushKV("nonce", uint64_t(block.nNonce));
     result.pushKV("bits", strprintf("%08x", block.nBits));
     result.pushKV("difficulty", GetDifficulty(blockindex));
     result.pushKV("chainwork", blockindex->nChainWork.GetHex());
     result.pushKV("nTx", uint64_t(blockindex->nTx));
 
     if (blockindex->pprev) {
         result.pushKV("previousblockhash",
                       blockindex->pprev->GetBlockHash().GetHex());
     }
     if (pnext) {
         result.pushKV("nextblockhash", pnext->GetBlockHash().GetHex());
     }
     return result;
 }
 
 static UniValue getblockcount(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblockcount",
         "\nReturns the height of the most-work fully-validated chain.\n"
         "The genesis block has height 0.\n",
         {},
         RPCResult{RPCResult::Type::NUM, "", "The current block count"},
         RPCExamples{HelpExampleCli("getblockcount", "") +
                     HelpExampleRpc("getblockcount", "")},
     }
         .Check(request);
 
     LOCK(cs_main);
     return ::ChainActive().Height();
 }
 
 static UniValue getbestblockhash(const Config &config,
                                  const JSONRPCRequest &request) {
     RPCHelpMan{
         "getbestblockhash",
         "Returns the hash of the best (tip) block in the "
         "most-work fully-validated chain.\n",
         {},
         RPCResult{RPCResult::Type::STR_HEX, "", "the block hash, hex-encoded"},
         RPCExamples{HelpExampleCli("getbestblockhash", "") +
                     HelpExampleRpc("getbestblockhash", "")},
     }
         .Check(request);
 
     LOCK(cs_main);
     return ::ChainActive().Tip()->GetBlockHash().GetHex();
 }
 
 UniValue getfinalizedblockhash(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "getfinalizedblockhash",
         "Returns the hash of the currently finalized block\n",
         {},
         RPCResult{RPCResult::Type::STR_HEX, "", "the block hash, hex-encoded"},
         RPCExamples{HelpExampleCli("getfinalizedblockhash", "") +
                     HelpExampleRpc("getfinalizedblockhash", "")},
     }
         .Check(request);
 
     LOCK(cs_main);
     const CBlockIndex *blockIndexFinalized =
         ::ChainstateActive().GetFinalizedBlock();
     if (blockIndexFinalized) {
         return blockIndexFinalized->GetBlockHash().GetHex();
     }
     return UniValue(UniValue::VSTR);
 }
 
 void RPCNotifyBlockChange(const CBlockIndex *pindex) {
     if (pindex) {
         LOCK(cs_blockchange);
         latestblock.hash = pindex->GetBlockHash();
         latestblock.height = pindex->nHeight;
     }
     cond_blockchange.notify_all();
 }
 
 static UniValue waitfornewblock(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "waitfornewblock",
         "Waits for a specific new block and returns useful info about it.\n"
         "\nReturns the current block on timeout or exit.\n",
         {
             {"timeout", RPCArg::Type::NUM, /* default */ "0",
              "Time in milliseconds to wait for a response. 0 indicates no "
              "timeout."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR_HEX, "hash", "The blockhash"},
                       {RPCResult::Type::NUM, "height", "Block height"},
                   }},
         RPCExamples{HelpExampleCli("waitfornewblock", "1000") +
                     HelpExampleRpc("waitfornewblock", "1000")},
     }
         .Check(request);
 
     int timeout = 0;
     if (!request.params[0].isNull()) {
         timeout = request.params[0].get_int();
     }
 
     CUpdatedBlock block;
     {
         WAIT_LOCK(cs_blockchange, lock);
         block = latestblock;
         if (timeout) {
             cond_blockchange.wait_for(
                 lock, std::chrono::milliseconds(timeout),
                 [&block]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.height != block.height ||
                            latestblock.hash != block.hash || !IsRPCRunning();
                 });
         } else {
             cond_blockchange.wait(
                 lock, [&block]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.height != block.height ||
                            latestblock.hash != block.hash || !IsRPCRunning();
                 });
         }
         block = latestblock;
     }
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("hash", block.hash.GetHex());
     ret.pushKV("height", block.height);
     return ret;
 }
 
 static UniValue waitforblock(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "waitforblock",
         "Waits for a specific new block and returns useful info about it.\n"
         "\nReturns the current block on timeout or exit.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "Block hash to wait for."},
             {"timeout", RPCArg::Type::NUM, /* default */ "0",
              "Time in milliseconds to wait for a response. 0 indicates no "
              "timeout."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR_HEX, "hash", "The blockhash"},
                       {RPCResult::Type::NUM, "height", "Block height"},
                   }},
         RPCExamples{HelpExampleCli("waitforblock",
                                    "\"0000000000079f8ef3d2c688c244eb7a4570b24c9"
                                    "ed7b4a8c619eb02596f8862\" 1000") +
                     HelpExampleRpc("waitforblock",
                                    "\"0000000000079f8ef3d2c688c244eb7a4570b24c9"
                                    "ed7b4a8c619eb02596f8862\", 1000")},
     }
         .Check(request);
 
     int timeout = 0;
 
     BlockHash hash(ParseHashV(request.params[0], "blockhash"));
 
     if (!request.params[1].isNull()) {
         timeout = request.params[1].get_int();
     }
 
     CUpdatedBlock block;
     {
         WAIT_LOCK(cs_blockchange, lock);
         if (timeout) {
             cond_blockchange.wait_for(
                 lock, std::chrono::milliseconds(timeout),
                 [&hash]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.hash == hash || !IsRPCRunning();
                 });
         } else {
             cond_blockchange.wait(
                 lock, [&hash]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.hash == hash || !IsRPCRunning();
                 });
         }
         block = latestblock;
     }
 
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("hash", block.hash.GetHex());
     ret.pushKV("height", block.height);
     return ret;
 }
 
 static UniValue waitforblockheight(const Config &config,
                                    const JSONRPCRequest &request) {
     RPCHelpMan{
         "waitforblockheight",
         "Waits for (at least) block height and returns the height and "
         "hash\nof the current tip.\n"
         "\nReturns the current block on timeout or exit.\n",
         {
             {"height", RPCArg::Type::NUM, RPCArg::Optional::NO,
              "Block height to wait for."},
             {"timeout", RPCArg::Type::NUM, /* default */ "0",
              "Time in milliseconds to wait for a response. 0 indicates no "
              "timeout."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR_HEX, "hash", "The blockhash"},
                       {RPCResult::Type::NUM, "height", "Block height"},
                   }},
         RPCExamples{HelpExampleCli("waitforblockheight", "100 1000") +
                     HelpExampleRpc("waitforblockheight", "100, 1000")},
     }
         .Check(request);
 
     int timeout = 0;
 
     int height = request.params[0].get_int();
 
     if (!request.params[1].isNull()) {
         timeout = request.params[1].get_int();
     }
 
     CUpdatedBlock block;
     {
         WAIT_LOCK(cs_blockchange, lock);
         if (timeout) {
             cond_blockchange.wait_for(
                 lock, std::chrono::milliseconds(timeout),
                 [&height]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.height >= height || !IsRPCRunning();
                 });
         } else {
             cond_blockchange.wait(
                 lock, [&height]() EXCLUSIVE_LOCKS_REQUIRED(cs_blockchange) {
                     return latestblock.height >= height || !IsRPCRunning();
                 });
         }
         block = latestblock;
     }
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("hash", block.hash.GetHex());
     ret.pushKV("height", block.height);
     return ret;
 }
 
 static UniValue
 syncwithvalidationinterfacequeue(const Config &config,
                                  const JSONRPCRequest &request) {
     RPCHelpMan{
         "syncwithvalidationinterfacequeue",
         "Waits for the validation interface queue to catch up on everything "
         "that was there when we entered this function.\n",
         {},
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("syncwithvalidationinterfacequeue", "") +
                     HelpExampleRpc("syncwithvalidationinterfacequeue", "")},
     }
         .Check(request);
 
     SyncWithValidationInterfaceQueue();
     return NullUniValue;
 }
 
 static UniValue getdifficulty(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "getdifficulty",
         "Returns the proof-of-work difficulty as a multiple of the minimum "
         "difficulty.\n",
         {},
         RPCResult{RPCResult::Type::NUM, "",
                   "the proof-of-work difficulty as a multiple of the minimum "
                   "difficulty."},
         RPCExamples{HelpExampleCli("getdifficulty", "") +
                     HelpExampleRpc("getdifficulty", "")},
     }
         .Check(request);
 
     LOCK(cs_main);
     return GetDifficulty(::ChainActive().Tip());
 }
 
 static std::vector<RPCResult> MempoolEntryDescription() {
     const auto &ticker = Currency::get().ticker;
     return {
         RPCResult{RPCResult::Type::NUM, "size", "transaction size."},
         RPCResult{RPCResult::Type::STR_AMOUNT, "fee",
                   "transaction fee in " + ticker + " (DEPRECATED)"},
         RPCResult{RPCResult::Type::STR_AMOUNT, "modifiedfee",
                   "transaction fee with fee deltas used for mining priority "
                   "(DEPRECATED)"},
         RPCResult{RPCResult::Type::NUM_TIME, "time",
                   "local time transaction entered pool in seconds since 1 Jan "
                   "1970 GMT"},
         RPCResult{RPCResult::Type::NUM, "height",
                   "block height when transaction entered pool"},
         RPCResult{RPCResult::Type::NUM, "descendantcount",
                   "number of in-mempool descendant transactions (including "
                   "this one)"},
         RPCResult{RPCResult::Type::NUM, "descendantsize",
                   "transaction size of in-mempool descendants "
                   "(including this one)"},
         RPCResult{RPCResult::Type::STR_AMOUNT, "descendantfees",
                   "modified fees (see above) of in-mempool descendants "
                   "(including this one) (DEPRECATED)"},
         RPCResult{
             RPCResult::Type::NUM, "ancestorcount",
             "number of in-mempool ancestor transactions (including this one)"},
         RPCResult{
             RPCResult::Type::NUM, "ancestorsize",
             "transaction size of in-mempool ancestors (including this one)"},
         RPCResult{RPCResult::Type::STR_AMOUNT, "ancestorfees",
                   "modified fees (see above) of in-mempool ancestors "
                   "(including this one) (DEPRECATED)"},
         RPCResult{RPCResult::Type::OBJ,
                   "fees",
                   "",
                   {
                       RPCResult{RPCResult::Type::STR_AMOUNT, "base",
                                 "transaction fee in " + ticker},
                       RPCResult{RPCResult::Type::STR_AMOUNT, "modified",
                                 "transaction fee with fee deltas used for "
                                 "mining priority in " +
                                     ticker},
                       RPCResult{RPCResult::Type::STR_AMOUNT, "ancestor",
                                 "modified fees (see above) of in-mempool "
                                 "ancestors (including this one) in " +
                                     ticker},
                       RPCResult{RPCResult::Type::STR_AMOUNT, "descendant",
                                 "modified fees (see above) of in-mempool "
                                 "descendants (including this one) in " +
                                     ticker},
                   }},
         RPCResult{
             RPCResult::Type::ARR,
             "depends",
             "unconfirmed transactions used as inputs for this transaction",
             {RPCResult{RPCResult::Type::STR_HEX, "transactionid",
                        "parent transaction id"}}},
         RPCResult{
             RPCResult::Type::ARR,
             "spentby",
             "unconfirmed transactions spending outputs from this transaction",
             {RPCResult{RPCResult::Type::STR_HEX, "transactionid",
                        "child transaction id"}}},
         RPCResult{RPCResult::Type::BOOL, "unbroadcast",
                   "Whether this transaction is currently unbroadcast (initial "
                   "broadcast not yet acknowledged by any peers)"},
     };
 }
 
 static void entryToJSON(const CTxMemPool &pool, UniValue &info,
                         const CTxMemPoolEntry &e)
     EXCLUSIVE_LOCKS_REQUIRED(pool.cs) {
     AssertLockHeld(pool.cs);
 
     UniValue fees(UniValue::VOBJ);
     fees.pushKV("base", e.GetFee());
     fees.pushKV("modified", e.GetModifiedFee());
     fees.pushKV("ancestor", e.GetModFeesWithAncestors());
     fees.pushKV("descendant", e.GetModFeesWithDescendants());
     info.pushKV("fees", fees);
 
     info.pushKV("size", (int)e.GetTxSize());
     info.pushKV("fee", e.GetFee());
     info.pushKV("modifiedfee", e.GetModifiedFee());
     info.pushKV("time", count_seconds(e.GetTime()));
     info.pushKV("height", (int)e.GetHeight());
     info.pushKV("descendantcount", e.GetCountWithDescendants());
     info.pushKV("descendantsize", e.GetSizeWithDescendants());
     info.pushKV("descendantfees", e.GetModFeesWithDescendants() / SATOSHI);
     info.pushKV("ancestorcount", e.GetCountWithAncestors());
     info.pushKV("ancestorsize", e.GetSizeWithAncestors());
     info.pushKV("ancestorfees", e.GetModFeesWithAncestors() / SATOSHI);
     const CTransaction &tx = e.GetTx();
     std::set<std::string> setDepends;
     for (const CTxIn &txin : tx.vin) {
         if (pool.exists(txin.prevout.GetTxId())) {
             setDepends.insert(txin.prevout.GetTxId().ToString());
         }
     }
 
     UniValue depends(UniValue::VARR);
     for (const std::string &dep : setDepends) {
         depends.push_back(dep);
     }
 
     info.pushKV("depends", depends);
 
     UniValue spent(UniValue::VARR);
     const CTxMemPool::txiter &it = pool.mapTx.find(tx.GetId());
     const CTxMemPool::setEntries &setChildren = pool.GetMemPoolChildren(it);
     for (CTxMemPool::txiter childiter : setChildren) {
         spent.push_back(childiter->GetTx().GetId().ToString());
     }
 
     info.pushKV("spentby", spent);
     info.pushKV("unbroadcast", pool.IsUnbroadcastTx(tx.GetId()));
 }
 
 UniValue MempoolToJSON(const CTxMemPool &pool, bool verbose) {
     if (verbose) {
         LOCK(pool.cs);
         UniValue o(UniValue::VOBJ);
         for (const CTxMemPoolEntry &e : pool.mapTx) {
             const uint256 &txid = e.GetTx().GetId();
             UniValue info(UniValue::VOBJ);
             entryToJSON(pool, info, e);
             // Mempool has unique entries so there is no advantage in using
             // UniValue::pushKV, which checks if the key already exists in O(N).
             // UniValue::__pushKV is used instead which currently is O(1).
             o.__pushKV(txid.ToString(), info);
         }
         return o;
     } else {
         std::vector<uint256> vtxids;
         pool.queryHashes(vtxids);
 
         UniValue a(UniValue::VARR);
         for (const uint256 &txid : vtxids) {
             a.push_back(txid.ToString());
         }
 
         return a;
     }
 }
 
 static UniValue getrawmempool(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "getrawmempool",
         "Returns all transaction ids in memory pool as a json array of "
         "string transaction ids.\n"
         "\nHint: use getmempoolentry to fetch a specific transaction from the "
         "mempool.\n",
         {
             {"verbose", RPCArg::Type::BOOL, /* default */ "false",
              "True for a json object, false for array of transaction ids"},
         },
         {
             RPCResult{"for verbose = false",
                       RPCResult::Type::ARR,
                       "",
                       "",
                       {
                           {RPCResult::Type::STR_HEX, "", "The transaction id"},
                       }},
             RPCResult{"for verbose = true",
                       RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::OBJ_DYN, "transactionid", "",
                            MempoolEntryDescription()},
                       }},
         },
         RPCExamples{HelpExampleCli("getrawmempool", "true") +
                     HelpExampleRpc("getrawmempool", "true")},
     }
         .Check(request);
 
     bool fVerbose = false;
     if (!request.params[0].isNull()) {
         fVerbose = request.params[0].get_bool();
     }
 
     return MempoolToJSON(EnsureMemPool(request.context), fVerbose);
 }
 
 static UniValue getmempoolancestors(const Config &config,
                                     const JSONRPCRequest &request) {
     RPCHelpMan{
         "getmempoolancestors",
         "If txid is in the mempool, returns all in-mempool ancestors.\n",
         {
             {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The transaction id (must be in mempool)"},
             {"verbose", RPCArg::Type::BOOL, /* default */ "false",
              "True for a json object, false for array of transaction ids"},
         },
         {
             RPCResult{
                 "for verbose = false",
                 RPCResult::Type::ARR,
                 "",
                 "",
                 {{RPCResult::Type::STR_HEX, "",
                   "The transaction id of an in-mempool ancestor transaction"}}},
             RPCResult{"for verbose = true", RPCResult::Type::OBJ_DYN,
                       "transactionid", "", MempoolEntryDescription()},
         },
         RPCExamples{HelpExampleCli("getmempoolancestors", "\"mytxid\"") +
                     HelpExampleRpc("getmempoolancestors", "\"mytxid\"")},
     }
         .Check(request);
 
     bool fVerbose = false;
     if (!request.params[1].isNull()) {
         fVerbose = request.params[1].get_bool();
     }
 
     TxId txid(ParseHashV(request.params[0], "parameter 1"));
 
     const CTxMemPool &mempool = EnsureMemPool(request.context);
     LOCK(mempool.cs);
 
     CTxMemPool::txiter it = mempool.mapTx.find(txid);
     if (it == mempool.mapTx.end()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Transaction not in mempool");
     }
 
     CTxMemPool::setEntries setAncestors;
     uint64_t noLimit = std::numeric_limits<uint64_t>::max();
     std::string dummy;
     mempool.CalculateMemPoolAncestors(*it, setAncestors, noLimit, noLimit,
                                       noLimit, noLimit, dummy, false);
 
     if (!fVerbose) {
         UniValue o(UniValue::VARR);
         for (CTxMemPool::txiter ancestorIt : setAncestors) {
             o.push_back(ancestorIt->GetTx().GetId().ToString());
         }
 
         return o;
     } else {
         UniValue o(UniValue::VOBJ);
         for (CTxMemPool::txiter ancestorIt : setAncestors) {
             const CTxMemPoolEntry &e = *ancestorIt;
             const TxId &_txid = e.GetTx().GetId();
             UniValue info(UniValue::VOBJ);
             entryToJSON(mempool, info, e);
             o.pushKV(_txid.ToString(), info);
         }
         return o;
     }
 }
 
 static UniValue getmempooldescendants(const Config &config,
                                       const JSONRPCRequest &request) {
     RPCHelpMan{
         "getmempooldescendants",
         "If txid is in the mempool, returns all in-mempool descendants.\n",
         {
             {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The transaction id (must be in mempool)"},
             {"verbose", RPCArg::Type::BOOL, /* default */ "false",
              "True for a json object, false for array of transaction ids"},
         },
         {
             RPCResult{"for verbose = false",
                       RPCResult::Type::ARR,
                       "",
                       "",
                       {{RPCResult::Type::STR_HEX, "",
                         "The transaction id of an in-mempool descendant "
                         "transaction"}}},
             RPCResult{"for verbose = true",
                       RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::OBJ_DYN, "transactionid", "",
                            MempoolEntryDescription()},
                       }},
         },
         RPCExamples{HelpExampleCli("getmempooldescendants", "\"mytxid\"") +
                     HelpExampleRpc("getmempooldescendants", "\"mytxid\"")},
     }
         .Check(request);
 
     bool fVerbose = false;
     if (!request.params[1].isNull()) {
         fVerbose = request.params[1].get_bool();
     }
 
     TxId txid(ParseHashV(request.params[0], "parameter 1"));
 
     const CTxMemPool &mempool = EnsureMemPool(request.context);
     LOCK(mempool.cs);
 
     CTxMemPool::txiter it = mempool.mapTx.find(txid);
     if (it == mempool.mapTx.end()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Transaction not in mempool");
     }
 
     CTxMemPool::setEntries setDescendants;
     mempool.CalculateDescendants(it, setDescendants);
     // CTxMemPool::CalculateDescendants will include the given tx
     setDescendants.erase(it);
 
     if (!fVerbose) {
         UniValue o(UniValue::VARR);
         for (CTxMemPool::txiter descendantIt : setDescendants) {
             o.push_back(descendantIt->GetTx().GetId().ToString());
         }
 
         return o;
     } else {
         UniValue o(UniValue::VOBJ);
         for (CTxMemPool::txiter descendantIt : setDescendants) {
             const CTxMemPoolEntry &e = *descendantIt;
             const TxId &_txid = e.GetTx().GetId();
             UniValue info(UniValue::VOBJ);
             entryToJSON(mempool, info, e);
             o.pushKV(_txid.ToString(), info);
         }
         return o;
     }
 }
 
 static UniValue getmempoolentry(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "getmempoolentry",
         "Returns mempool data for given transaction\n",
         {
             {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The transaction id (must be in mempool)"},
         },
         RPCResult{RPCResult::Type::OBJ_DYN, "", "", MempoolEntryDescription()},
         RPCExamples{HelpExampleCli("getmempoolentry", "\"mytxid\"") +
                     HelpExampleRpc("getmempoolentry", "\"mytxid\"")},
     }
         .Check(request);
 
     TxId txid(ParseHashV(request.params[0], "parameter 1"));
 
     const CTxMemPool &mempool = EnsureMemPool(request.context);
     LOCK(mempool.cs);
 
     CTxMemPool::txiter it = mempool.mapTx.find(txid);
     if (it == mempool.mapTx.end()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Transaction not in mempool");
     }
 
     const CTxMemPoolEntry &e = *it;
     UniValue info(UniValue::VOBJ);
     entryToJSON(mempool, info, e);
     return info;
 }
 
 static UniValue getblockhash(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblockhash",
         "Returns hash of block in best-block-chain at height provided.\n",
         {
             {"height", RPCArg::Type::NUM, RPCArg::Optional::NO,
              "The height index"},
         },
         RPCResult{RPCResult::Type::STR_HEX, "", "The block hash"},
         RPCExamples{HelpExampleCli("getblockhash", "1000") +
                     HelpExampleRpc("getblockhash", "1000")},
     }
         .Check(request);
 
     LOCK(cs_main);
 
     int nHeight = request.params[0].get_int();
     if (nHeight < 0 || nHeight > ::ChainActive().Height()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Block height out of range");
     }
 
     CBlockIndex *pblockindex = ::ChainActive()[nHeight];
     return pblockindex->GetBlockHash().GetHex();
 }
 
 static UniValue getblockheader(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblockheader",
         "If verbose is false, returns a string that is serialized, hex-encoded "
         "data for blockheader 'hash'.\n"
         "If verbose is true, returns an Object with information about "
         "blockheader <hash>.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The block hash"},
             {"verbose", RPCArg::Type::BOOL, /* default */ "true",
              "true for a json object, false for the hex-encoded data"},
         },
         {
             RPCResult{
                 "for verbose = true",
                 RPCResult::Type::OBJ,
                 "",
                 "",
                 {
                     {RPCResult::Type::STR_HEX, "hash",
                      "the block hash (same as provided)"},
                     {RPCResult::Type::NUM, "confirmations",
                      "The number of confirmations, or -1 if the block is not "
                      "on the main chain"},
                     {RPCResult::Type::NUM, "height",
                      "The block height or index"},
                     {RPCResult::Type::NUM, "version", "The block version"},
                     {RPCResult::Type::STR_HEX, "versionHex",
                      "The block version formatted in hexadecimal"},
                     {RPCResult::Type::STR_HEX, "merkleroot", "The merkle root"},
                     {RPCResult::Type::NUM_TIME, "time",
                      "The block time expressed in " + UNIX_EPOCH_TIME},
                     {RPCResult::Type::NUM_TIME, "mediantime",
                      "The median block time expressed in " + UNIX_EPOCH_TIME},
                     {RPCResult::Type::NUM, "nonce", "The nonce"},
                     {RPCResult::Type::STR_HEX, "bits", "The bits"},
                     {RPCResult::Type::NUM, "difficulty", "The difficulty"},
                     {RPCResult::Type::STR_HEX, "chainwork",
                      "Expected number of hashes required to produce the "
                      "current chain"},
                     {RPCResult::Type::NUM, "nTx",
                      "The number of transactions in the block"},
                     {RPCResult::Type::STR_HEX, "previousblockhash",
                      "The hash of the previous block"},
                     {RPCResult::Type::STR_HEX, "nextblockhash",
                      "The hash of the next block"},
                 }},
             RPCResult{"for verbose=false", RPCResult::Type::STR_HEX, "",
                       "A string that is serialized, hex-encoded data for block "
                       "'hash'"},
         },
         RPCExamples{HelpExampleCli("getblockheader",
                                    "\"00000000c937983704a73af28acdec37b049d214a"
                                    "dbda81d7e2a3dd146f6ed09\"") +
                     HelpExampleRpc("getblockheader",
                                    "\"00000000c937983704a73af28acdec37b049d214a"
                                    "dbda81d7e2a3dd146f6ed09\"")},
     }
         .Check(request);
 
     BlockHash hash(ParseHashV(request.params[0], "hash"));
 
     bool fVerbose = true;
     if (!request.params[1].isNull()) {
         fVerbose = request.params[1].get_bool();
     }
 
     const CBlockIndex *pblockindex;
     const CBlockIndex *tip;
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         tip = ::ChainActive().Tip();
     }
 
     if (!pblockindex) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
     }
 
     if (!fVerbose) {
         CDataStream ssBlock(SER_NETWORK, PROTOCOL_VERSION);
         ssBlock << pblockindex->GetBlockHeader();
         std::string strHex = HexStr(ssBlock);
         return strHex;
     }
 
     return blockheaderToJSON(tip, pblockindex);
 }
 
 static CBlock GetBlockChecked(const Config &config,
                               const CBlockIndex *pblockindex) {
     CBlock block;
     if (IsBlockPruned(pblockindex)) {
         throw JSONRPCError(RPC_MISC_ERROR, "Block not available (pruned data)");
     }
 
     if (!ReadBlockFromDisk(block, pblockindex,
                            config.GetChainParams().GetConsensus())) {
         // Block not found on disk. This could be because we have the block
         // header in our index but not yet have the block or did not accept the
         // block.
         throw JSONRPCError(RPC_MISC_ERROR, "Block not found on disk");
     }
 
     return block;
 }
 
 static CBlockUndo GetUndoChecked(const CBlockIndex *pblockindex) {
     CBlockUndo blockUndo;
     if (IsBlockPruned(pblockindex)) {
         throw JSONRPCError(RPC_MISC_ERROR,
                            "Undo data not available (pruned data)");
     }
 
     if (!UndoReadFromDisk(blockUndo, pblockindex)) {
         throw JSONRPCError(RPC_MISC_ERROR, "Can't read undo data from disk");
     }
 
     return blockUndo;
 }
 
 static UniValue getblock(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblock",
         "If verbosity is 0 or false, returns a string that is serialized, "
         "hex-encoded data for block 'hash'.\n"
         "If verbosity is 1 or true, returns an Object with information about "
         "block <hash>.\n"
         "If verbosity is 2, returns an Object with information about block "
         "<hash> and information about each transaction.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The block hash"},
             {"verbosity|verbose", RPCArg::Type::NUM, /* default */ "1",
              "0 for hex-encoded data, 1 for a json object, and 2 for json "
              "object with transaction data"},
         },
         {
             RPCResult{"for verbosity = 0", RPCResult::Type::STR_HEX, "",
                       "A string that is serialized, hex-encoded data for block "
                       "'hash'"},
             RPCResult{
                 "for verbosity = 1",
                 RPCResult::Type::OBJ,
                 "",
                 "",
                 {
                     {RPCResult::Type::STR_HEX, "hash",
                      "the block hash (same as provided)"},
                     {RPCResult::Type::NUM, "confirmations",
                      "The number of confirmations, or -1 if the block is not "
                      "on the main chain"},
                     {RPCResult::Type::NUM, "size", "The block size"},
                     {RPCResult::Type::NUM, "height",
                      "The block height or index"},
                     {RPCResult::Type::NUM, "version", "The block version"},
                     {RPCResult::Type::STR_HEX, "versionHex",
                      "The block version formatted in hexadecimal"},
                     {RPCResult::Type::STR_HEX, "merkleroot", "The merkle root"},
                     {RPCResult::Type::ARR,
                      "tx",
                      "The transaction ids",
                      {{RPCResult::Type::STR_HEX, "", "The transaction id"}}},
                     {RPCResult::Type::NUM_TIME, "time",
                      "The block time expressed in " + UNIX_EPOCH_TIME},
                     {RPCResult::Type::NUM_TIME, "mediantime",
                      "The median block time expressed in " + UNIX_EPOCH_TIME},
                     {RPCResult::Type::NUM, "nonce", "The nonce"},
                     {RPCResult::Type::STR_HEX, "bits", "The bits"},
                     {RPCResult::Type::NUM, "difficulty", "The difficulty"},
                     {RPCResult::Type::STR_HEX, "chainwork",
                      "Expected number of hashes required to produce the chain "
                      "up to this block (in hex)"},
                     {RPCResult::Type::NUM, "nTx",
                      "The number of transactions in the block"},
                     {RPCResult::Type::STR_HEX, "previousblockhash",
                      "The hash of the previous block"},
                     {RPCResult::Type::STR_HEX, "nextblockhash",
                      "The hash of the next block"},
                 }},
             RPCResult{"for verbosity = 2",
                       RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::ELISION, "",
                            "Same output as verbosity = 1"},
                           {RPCResult::Type::ARR,
                            "tx",
                            "",
                            {
                                {RPCResult::Type::OBJ,
                                 "",
                                 "",
                                 {
                                     {RPCResult::Type::ELISION, "",
                                      "The transactions in the format of the "
                                      "getrawtransaction RPC. Different from "
                                      "verbosity = 1 \"tx\" result"},
                                 }},
                            }},
                           {RPCResult::Type::ELISION, "",
                            "Same output as verbosity = 1"},
                       }},
         },
         RPCExamples{
             HelpExampleCli("getblock", "\"00000000c937983704a73af28acdec37b049d"
                                        "214adbda81d7e2a3dd146f6ed09\"") +
             HelpExampleRpc("getblock", "\"00000000c937983704a73af28acdec37b049d"
                                        "214adbda81d7e2a3dd146f6ed09\"")},
     }
         .Check(request);
 
     BlockHash hash(ParseHashV(request.params[0], "blockhash"));
 
     int verbosity = 1;
     if (!request.params[1].isNull()) {
         if (request.params[1].isNum()) {
             verbosity = request.params[1].get_int();
         } else {
             verbosity = request.params[1].get_bool() ? 1 : 0;
         }
     }
 
     CBlock block;
     const CBlockIndex *pblockindex;
     const CBlockIndex *tip;
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         tip = ::ChainActive().Tip();
 
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
 
         block = GetBlockChecked(config, pblockindex);
     }
 
     if (verbosity <= 0) {
         CDataStream ssBlock(SER_NETWORK,
                             PROTOCOL_VERSION | RPCSerializationFlags());
         ssBlock << block;
         std::string strHex = HexStr(ssBlock);
         return strHex;
     }
 
     return blockToJSON(block, tip, pblockindex, verbosity >= 2);
 }
 
 static UniValue pruneblockchain(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "pruneblockchain",
         "",
         {
             {"height", RPCArg::Type::NUM, RPCArg::Optional::NO,
              "The block height to prune up to. May be set to a discrete "
              "height, or to a " +
                  UNIX_EPOCH_TIME +
                  "\n"
                  "                  to prune blocks whose block time is at "
                  "least 2 hours older than the provided timestamp."},
         },
         RPCResult{RPCResult::Type::NUM, "", "Height of the last block pruned"},
         RPCExamples{HelpExampleCli("pruneblockchain", "1000") +
                     HelpExampleRpc("pruneblockchain", "1000")},
     }
         .Check(request);
 
     if (!fPruneMode) {
         throw JSONRPCError(
             RPC_MISC_ERROR,
             "Cannot prune blocks because node is not in prune mode.");
     }
 
     LOCK(cs_main);
 
     int heightParam = request.params[0].get_int();
     if (heightParam < 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative block height.");
     }
 
     // Height value more than a billion is too high to be a block height, and
     // too low to be a block time (corresponds to timestamp from Sep 2001).
     if (heightParam > 1000000000) {
         // Add a 2 hour buffer to include blocks which might have had old
         // timestamps
         CBlockIndex *pindex = ::ChainActive().FindEarliestAtLeast(
             heightParam - TIMESTAMP_WINDOW, 0);
         if (!pindex) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 "Could not find block with at least the specified timestamp.");
         }
         heightParam = pindex->nHeight;
     }
 
     unsigned int height = (unsigned int)heightParam;
     unsigned int chainHeight = (unsigned int)::ChainActive().Height();
     if (chainHeight < config.GetChainParams().PruneAfterHeight()) {
         throw JSONRPCError(RPC_MISC_ERROR,
                            "Blockchain is too short for pruning.");
     } else if (height > chainHeight) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             "Blockchain is shorter than the attempted prune height.");
     } else if (height > chainHeight - MIN_BLOCKS_TO_KEEP) {
         LogPrint(BCLog::RPC, "Attempt to prune blocks close to the tip. "
                              "Retaining the minimum number of blocks.\n");
         height = chainHeight - MIN_BLOCKS_TO_KEEP;
     }
 
     PruneBlockFilesManual(height);
     const CBlockIndex *block = ::ChainActive().Tip();
     CHECK_NONFATAL(block);
     while (block->pprev && (block->pprev->nStatus.hasData())) {
         block = block->pprev;
     }
     return uint64_t(block->nHeight);
 }
 
 static UniValue gettxoutsetinfo(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "gettxoutsetinfo",
         "Returns statistics about the unspent transaction output set.\n"
         "Note this call may take some time.\n",
-        {},
+        {
+            {"hash_type", RPCArg::Type::STR, /* default */ "hash_serialized",
+             "Which UTXO set hash should be calculated. Options: "
+             "'hash_serialized' (the legacy algorithm)."},
+        },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::NUM, "height",
                        "The current block height (index)"},
                       {RPCResult::Type::STR_HEX, "bestblock",
                        "The hash of the block at the tip of the chain"},
                       {RPCResult::Type::NUM, "transactions",
                        "The number of transactions with unspent outputs"},
                       {RPCResult::Type::NUM, "txouts",
                        "The number of unspent transaction outputs"},
                       {RPCResult::Type::NUM, "bogosize",
                        "A meaningless metric for UTXO set size"},
                       {RPCResult::Type::STR_HEX, "hash_serialized",
-                       "The serialized hash"},
+                       "The serialized hash (only present if 'hash_serialized' "
+                       "hash_type is chosen)"},
                       {RPCResult::Type::NUM, "disk_size",
                        "The estimated size of the chainstate on disk"},
                       {RPCResult::Type::STR_AMOUNT, "total_amount",
                        "The total amount"},
                   }},
         RPCExamples{HelpExampleCli("gettxoutsetinfo", "") +
                     HelpExampleRpc("gettxoutsetinfo", "")},
     }
         .Check(request);
 
     UniValue ret(UniValue::VOBJ);
 
     CCoinsStats stats;
     ::ChainstateActive().ForceFlushStateToDisk();
 
+    const CoinStatsHashType hash_type =
+        ParseHashType(request.params[0], CoinStatsHashType::HASH_SERIALIZED);
+
     CCoinsView *coins_view =
         WITH_LOCK(cs_main, return &ChainstateActive().CoinsDB());
     NodeContext &node = EnsureNodeContext(request.context);
-    if (GetUTXOStats(coins_view, stats, node.rpc_interruption_point)) {
+    if (GetUTXOStats(coins_view, stats, hash_type,
+                     node.rpc_interruption_point)) {
         ret.pushKV("height", int64_t(stats.nHeight));
         ret.pushKV("bestblock", stats.hashBlock.GetHex());
         ret.pushKV("transactions", int64_t(stats.nTransactions));
         ret.pushKV("txouts", int64_t(stats.nTransactionOutputs));
         ret.pushKV("bogosize", int64_t(stats.nBogoSize));
-        ret.pushKV("hash_serialized", stats.hashSerialized.GetHex());
+        if (hash_type == CoinStatsHashType::HASH_SERIALIZED) {
+            ret.pushKV("hash_serialized", stats.hashSerialized.GetHex());
+        }
         ret.pushKV("disk_size", stats.nDiskSize);
         ret.pushKV("total_amount", stats.nTotalAmount);
     } else {
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
     }
     return ret;
 }
 
 UniValue gettxout(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "gettxout",
         "Returns details about an unspent transaction output.\n",
         {
             {"txid", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The transaction id"},
             {"n", RPCArg::Type::NUM, RPCArg::Optional::NO, "vout number"},
             {"include_mempool", RPCArg::Type::BOOL, /* default */ "true",
              "Whether to include the mempool. Note that an unspent output that "
              "is spent in the mempool won't appear."},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR_HEX, "bestblock",
                  "The hash of the block at the tip of the chain"},
                 {RPCResult::Type::NUM, "confirmations",
                  "The number of confirmations"},
                 {RPCResult::Type::STR_AMOUNT, "value",
                  "The transaction value in " + Currency::get().ticker},
                 {RPCResult::Type::OBJ,
                  "scriptPubKey",
                  "",
                  {
                      {RPCResult::Type::STR_HEX, "asm", ""},
                      {RPCResult::Type::STR_HEX, "hex", ""},
                      {RPCResult::Type::NUM, "reqSigs",
                       "Number of required signatures"},
                      {RPCResult::Type::STR_HEX, "type",
                       "The type, eg pubkeyhash"},
                      {RPCResult::Type::ARR,
                       "addresses",
                       "array of bitcoin addresses",
                       {{RPCResult::Type::STR, "address", "bitcoin address"}}},
                  }},
                 {RPCResult::Type::BOOL, "coinbase", "Coinbase or not"},
             }},
         RPCExamples{"\nGet unspent transactions\n" +
                     HelpExampleCli("listunspent", "") + "\nView the details\n" +
                     HelpExampleCli("gettxout", "\"txid\" 1") +
                     "\nAs a JSON-RPC call\n" +
                     HelpExampleRpc("gettxout", "\"txid\", 1")},
     }
         .Check(request);
 
     LOCK(cs_main);
 
     UniValue ret(UniValue::VOBJ);
 
     TxId txid(ParseHashV(request.params[0], "txid"));
     int n = request.params[1].get_int();
     COutPoint out(txid, n);
     bool fMempool = true;
     if (!request.params[2].isNull()) {
         fMempool = request.params[2].get_bool();
     }
 
     Coin coin;
     CCoinsViewCache *coins_view = &::ChainstateActive().CoinsTip();
 
     if (fMempool) {
         const CTxMemPool &mempool = EnsureMemPool(request.context);
         LOCK(mempool.cs);
         CCoinsViewMemPool view(coins_view, mempool);
         if (!view.GetCoin(out, coin) || mempool.isSpent(out)) {
             return NullUniValue;
         }
     } else {
         if (!coins_view->GetCoin(out, coin)) {
             return NullUniValue;
         }
     }
 
     const CBlockIndex *pindex = LookupBlockIndex(coins_view->GetBestBlock());
     ret.pushKV("bestblock", pindex->GetBlockHash().GetHex());
     if (coin.GetHeight() == MEMPOOL_HEIGHT) {
         ret.pushKV("confirmations", 0);
     } else {
         ret.pushKV("confirmations",
                    int64_t(pindex->nHeight - coin.GetHeight() + 1));
     }
     ret.pushKV("value", coin.GetTxOut().nValue);
     UniValue o(UniValue::VOBJ);
     ScriptPubKeyToUniv(coin.GetTxOut().scriptPubKey, o, true);
     ret.pushKV("scriptPubKey", o);
     ret.pushKV("coinbase", coin.IsCoinBase());
 
     return ret;
 }
 
 static UniValue verifychain(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "verifychain",
         "Verifies blockchain database.\n",
         {
             {"checklevel", RPCArg::Type::NUM,
              /* default */ strprintf("%d, range=0-4", DEFAULT_CHECKLEVEL),
              strprintf("How thorough the block verification is:\n - %s",
                        Join(CHECKLEVEL_DOC, "\n- "))},
             {"nblocks", RPCArg::Type::NUM,
              /* default */ strprintf("%d, 0=all", DEFAULT_CHECKBLOCKS),
              "The number of blocks to check."},
         },
         RPCResult{RPCResult::Type::BOOL, "", "Verified or not"},
         RPCExamples{HelpExampleCli("verifychain", "") +
                     HelpExampleRpc("verifychain", "")},
     }
         .Check(request);
 
     const int check_level(request.params[0].isNull()
                               ? DEFAULT_CHECKLEVEL
                               : request.params[0].get_int());
     const int check_depth{request.params[1].isNull()
                               ? DEFAULT_CHECKBLOCKS
                               : request.params[1].get_int()};
 
     LOCK(cs_main);
 
     return CVerifyDB().VerifyDB(config, &::ChainstateActive().CoinsTip(),
                                 check_level, check_depth);
 }
 
 static void BIP9SoftForkDescPushBack(UniValue &softforks,
                                      const Consensus::Params &consensusParams,
                                      Consensus::DeploymentPos id)
     EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
     // For BIP9 deployments.
     // Deployments (e.g. testdummy) with timeout value before Jan 1, 2009 are
     // hidden. A timeout value of 0 guarantees a softfork will never be
     // activated. This is used when merging logic to implement a proposed
     // softfork without a specified deployment schedule.
     if (consensusParams.vDeployments[id].nTimeout <= 1230768000) {
         return;
     }
 
     UniValue bip9(UniValue::VOBJ);
     const ThresholdState thresholdState =
         VersionBitsTipState(consensusParams, id);
     switch (thresholdState) {
         case ThresholdState::DEFINED:
             bip9.pushKV("status", "defined");
             break;
         case ThresholdState::STARTED:
             bip9.pushKV("status", "started");
             break;
         case ThresholdState::LOCKED_IN:
             bip9.pushKV("status", "locked_in");
             break;
         case ThresholdState::ACTIVE:
             bip9.pushKV("status", "active");
             break;
         case ThresholdState::FAILED:
             bip9.pushKV("status", "failed");
             break;
     }
     if (ThresholdState::STARTED == thresholdState) {
         bip9.pushKV("bit", consensusParams.vDeployments[id].bit);
     }
     bip9.pushKV("start_time", consensusParams.vDeployments[id].nStartTime);
     bip9.pushKV("timeout", consensusParams.vDeployments[id].nTimeout);
     int64_t since_height = VersionBitsTipStateSinceHeight(consensusParams, id);
     bip9.pushKV("since", since_height);
     if (ThresholdState::STARTED == thresholdState) {
         UniValue statsUV(UniValue::VOBJ);
         BIP9Stats statsStruct = VersionBitsTipStatistics(consensusParams, id);
         statsUV.pushKV("period", statsStruct.period);
         statsUV.pushKV("threshold", statsStruct.threshold);
         statsUV.pushKV("elapsed", statsStruct.elapsed);
         statsUV.pushKV("count", statsStruct.count);
         statsUV.pushKV("possible", statsStruct.possible);
         bip9.pushKV("statistics", statsUV);
     }
 
     UniValue rv(UniValue::VOBJ);
     rv.pushKV("type", "bip9");
     rv.pushKV("bip9", bip9);
     if (ThresholdState::ACTIVE == thresholdState) {
         rv.pushKV("height", since_height);
     }
     rv.pushKV("active", ThresholdState::ACTIVE == thresholdState);
 
     softforks.pushKV(VersionBitsDeploymentInfo[id].name, rv);
 }
 
 UniValue getblockchaininfo(const Config &config,
                            const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblockchaininfo",
         "Returns an object containing various state info regarding blockchain "
         "processing.\n",
         {},
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::STR, "chain",
                  "current network name (main, test, regtest)"},
                 {RPCResult::Type::NUM, "blocks",
                  "the height of the most-work fully-validated chain. The "
                  "genesis block has height 0"},
                 {RPCResult::Type::NUM, "headers",
                  "the current number of headers we have validated"},
                 {RPCResult::Type::STR, "bestblockhash",
                  "the hash of the currently best block"},
                 {RPCResult::Type::NUM, "difficulty", "the current difficulty"},
                 {RPCResult::Type::NUM, "mediantime",
                  "median time for the current best block"},
                 {RPCResult::Type::NUM, "verificationprogress",
                  "estimate of verification progress [0..1]"},
                 {RPCResult::Type::BOOL, "initialblockdownload",
                  "(debug information) estimate of whether this node is in "
                  "Initial Block Download mode"},
                 {RPCResult::Type::STR_HEX, "chainwork",
                  "total amount of work in active chain, in hexadecimal"},
                 {RPCResult::Type::NUM, "size_on_disk",
                  "the estimated size of the block and undo files on disk"},
                 {RPCResult::Type::BOOL, "pruned",
                  "if the blocks are subject to pruning"},
                 {RPCResult::Type::NUM, "pruneheight",
                  "lowest-height complete block stored (only present if pruning "
                  "is enabled)"},
                 {RPCResult::Type::BOOL, "automatic_pruning",
                  "whether automatic pruning is enabled (only present if "
                  "pruning is enabled)"},
                 {RPCResult::Type::NUM, "prune_target_size",
                  "the target size used by pruning (only present if automatic "
                  "pruning is enabled)"},
                 {RPCResult::Type::OBJ_DYN,
                  "softforks",
                  "status of softforks",
                  {
                      {RPCResult::Type::OBJ,
                       "xxxx",
                       "name of the softfork",
                       {
                           {RPCResult::Type::STR, "type",
                            "one of \"buried\", \"bip9\""},
                           {RPCResult::Type::OBJ,
                            "bip9",
                            "status of bip9 softforks (only for \"bip9\" type)",
                            {
                                {RPCResult::Type::STR, "status",
                                 "one of \"defined\", \"started\", "
                                 "\"locked_in\", \"active\", \"failed\""},
                                {RPCResult::Type::NUM, "bit",
                                 "the bit (0-28) in the block version field "
                                 "used to signal this softfork (only for "
                                 "\"started\" status)"},
                                {RPCResult::Type::NUM_TIME, "start_time",
                                 "the minimum median time past of a block at "
                                 "which the bit gains its meaning"},
                                {RPCResult::Type::NUM_TIME, "timeout",
                                 "the median time past of a block at which the "
                                 "deployment is considered failed if not yet "
                                 "locked in"},
                                {RPCResult::Type::NUM, "since",
                                 "height of the first block to which the status "
                                 "applies"},
                                {RPCResult::Type::OBJ,
                                 "statistics",
                                 "numeric statistics about BIP9 signalling for "
                                 "a softfork",
                                 {
                                     {RPCResult::Type::NUM, "period",
                                      "the length in blocks of the BIP9 "
                                      "signalling period"},
                                     {RPCResult::Type::NUM, "threshold",
                                      "the number of blocks with the version "
                                      "bit set required to activate the "
                                      "feature"},
                                     {RPCResult::Type::NUM, "elapsed",
                                      "the number of blocks elapsed since the "
                                      "beginning of the current period"},
                                     {RPCResult::Type::NUM, "count",
                                      "the number of blocks with the version "
                                      "bit set in the current period"},
                                     {RPCResult::Type::BOOL, "possible",
                                      "returns false if there are not enough "
                                      "blocks left in this period to pass "
                                      "activation threshold"},
                                 }},
                            }},
                           {RPCResult::Type::NUM, "height",
                            "height of the first block which the rules are or "
                            "will be enforced (only for \"buried\" type, or "
                            "\"bip9\" type with \"active\" status)"},
                           {RPCResult::Type::BOOL, "active",
                            "true if the rules are enforced for the mempool and "
                            "the next block"},
                       }},
                  }},
                 {RPCResult::Type::STR, "warnings",
                  "any network and blockchain warnings"},
             }},
         RPCExamples{HelpExampleCli("getblockchaininfo", "") +
                     HelpExampleRpc("getblockchaininfo", "")},
     }
         .Check(request);
 
     LOCK(cs_main);
 
     const CChainParams &chainparams = config.GetChainParams();
 
     const CBlockIndex *tip = ::ChainActive().Tip();
     UniValue obj(UniValue::VOBJ);
     obj.pushKV("chain", chainparams.NetworkIDString());
     obj.pushKV("blocks", int(::ChainActive().Height()));
     obj.pushKV("headers", pindexBestHeader ? pindexBestHeader->nHeight : -1);
     obj.pushKV("bestblockhash", tip->GetBlockHash().GetHex());
     obj.pushKV("difficulty", double(GetDifficulty(tip)));
     obj.pushKV("mediantime", int64_t(tip->GetMedianTimePast()));
     obj.pushKV("verificationprogress",
                GuessVerificationProgress(Params().TxData(), tip));
     obj.pushKV("initialblockdownload",
                ::ChainstateActive().IsInitialBlockDownload());
     obj.pushKV("chainwork", tip->nChainWork.GetHex());
     obj.pushKV("size_on_disk", CalculateCurrentUsage());
     obj.pushKV("pruned", fPruneMode);
 
     if (fPruneMode) {
         const CBlockIndex *block = tip;
         CHECK_NONFATAL(block);
         while (block->pprev && (block->pprev->nStatus.hasData())) {
             block = block->pprev;
         }
 
         obj.pushKV("pruneheight", block->nHeight);
 
         // if 0, execution bypasses the whole if block.
         bool automatic_pruning = (gArgs.GetArg("-prune", 0) != 1);
         obj.pushKV("automatic_pruning", automatic_pruning);
         if (automatic_pruning) {
             obj.pushKV("prune_target_size", nPruneTarget);
         }
     }
 
     UniValue softforks(UniValue::VOBJ);
     for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; i++) {
         BIP9SoftForkDescPushBack(softforks, chainparams.GetConsensus(),
                                  Consensus::DeploymentPos(i));
     }
     obj.pushKV("softforks", softforks);
 
     obj.pushKV("warnings", GetWarnings(false).original);
     return obj;
 }
 
 /** Comparison function for sorting the getchaintips heads.  */
 struct CompareBlocksByHeight {
     bool operator()(const CBlockIndex *a, const CBlockIndex *b) const {
         // Make sure that unequal blocks with the same height do not compare
         // equal. Use the pointers themselves to make a distinction.
         if (a->nHeight != b->nHeight) {
             return (a->nHeight > b->nHeight);
         }
 
         return a < b;
     }
 };
 
 static UniValue getchaintips(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "getchaintips",
         "Return information about all known tips in the block tree, including "
         "the main chain as well as orphaned branches.\n",
         {},
         RPCResult{
             RPCResult::Type::ARR,
             "",
             "",
             {{RPCResult::Type::OBJ,
               "",
               "",
               {
                   {RPCResult::Type::NUM, "height", "height of the chain tip"},
                   {RPCResult::Type::STR_HEX, "hash", "block hash of the tip"},
                   {RPCResult::Type::NUM, "branchlen",
                    "zero for main chain, otherwise length of branch connecting "
                    "the tip to the main chain"},
                   {RPCResult::Type::STR, "status",
                    "status of the chain, \"active\" for the main chain\n"
                    "Possible values for status:\n"
                    "1.  \"invalid\"               This branch contains at "
                    "least one invalid block\n"
                    "2.  \"parked\"                This branch contains at "
                    "least one parked block\n"
                    "3.  \"headers-only\"          Not all blocks for this "
                    "branch are available, but the headers are valid\n"
                    "4.  \"valid-headers\"         All blocks are available for "
                    "this branch, but they were never fully validated\n"
                    "5.  \"valid-fork\"            This branch is not part of "
                    "the active chain, but is fully validated\n"
                    "6.  \"active\"                This is the tip of the "
                    "active main chain, which is certainly valid"},
               }}}},
         RPCExamples{HelpExampleCli("getchaintips", "") +
                     HelpExampleRpc("getchaintips", "")},
     }
         .Check(request);
 
     ChainstateManager &chainman = EnsureChainman(request.context);
     LOCK(cs_main);
 
     /**
      * Idea: The set of chain tips is the active chain tip, plus orphan blocks
      * which do not have another orphan building off of them. Algorithm:
      *  - Make one pass through BlockIndex(), picking out the orphan
      * blocks, and also storing a set of the orphan block's pprev pointers.
      *  - Iterate through the orphan blocks. If the block isn't pointed to by
      * another orphan, it is a chain tip.
      *  - Add the active chain tip
      */
     std::set<const CBlockIndex *, CompareBlocksByHeight> setTips;
     std::set<const CBlockIndex *> setOrphans;
     std::set<const CBlockIndex *> setPrevs;
 
     for (const std::pair<const BlockHash, CBlockIndex *> &item :
          chainman.BlockIndex()) {
         if (!chainman.ActiveChain().Contains(item.second)) {
             setOrphans.insert(item.second);
             setPrevs.insert(item.second->pprev);
         }
     }
 
     for (std::set<const CBlockIndex *>::iterator it = setOrphans.begin();
          it != setOrphans.end(); ++it) {
         if (setPrevs.erase(*it) == 0) {
             setTips.insert(*it);
         }
     }
 
     // Always report the currently active tip.
     setTips.insert(chainman.ActiveChain().Tip());
 
     /* Construct the output array.  */
     UniValue res(UniValue::VARR);
     for (const CBlockIndex *block : setTips) {
         UniValue obj(UniValue::VOBJ);
         obj.pushKV("height", block->nHeight);
         obj.pushKV("hash", block->phashBlock->GetHex());
 
         const int branchLen =
             block->nHeight - chainman.ActiveChain().FindFork(block)->nHeight;
         obj.pushKV("branchlen", branchLen);
 
         std::string status;
         if (chainman.ActiveChain().Contains(block)) {
             // This block is part of the currently active chain.
             status = "active";
         } else if (block->nStatus.isInvalid()) {
             // This block or one of its ancestors is invalid.
             status = "invalid";
         } else if (block->nStatus.isOnParkedChain()) {
             // This block or one of its ancestors is parked.
             status = "parked";
         } else if (!block->HaveTxsDownloaded()) {
             // This block cannot be connected because full block data for it or
             // one of its parents is missing.
             status = "headers-only";
         } else if (block->IsValid(BlockValidity::SCRIPTS)) {
             // This block is fully validated, but no longer part of the active
             // chain. It was probably the active block once, but was
             // reorganized.
             status = "valid-fork";
         } else if (block->IsValid(BlockValidity::TREE)) {
             // The headers for this block are valid, but it has not been
             // validated. It was probably never part of the most-work chain.
             status = "valid-headers";
         } else {
             // No clue.
             status = "unknown";
         }
         obj.pushKV("status", status);
 
         res.push_back(obj);
     }
 
     return res;
 }
 
 UniValue MempoolInfoToJSON(const CTxMemPool &pool) {
     // Make sure this call is atomic in the pool.
     LOCK(pool.cs);
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("loaded", pool.IsLoaded());
     ret.pushKV("size", (int64_t)pool.size());
     ret.pushKV("bytes", (int64_t)pool.GetTotalTxSize());
     ret.pushKV("usage", (int64_t)pool.DynamicMemoryUsage());
     size_t maxmempool =
         gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
     ret.pushKV("maxmempool", (int64_t)maxmempool);
     ret.pushKV(
         "mempoolminfee",
         std::max(pool.GetMinFee(maxmempool), ::minRelayTxFee).GetFeePerK());
     ret.pushKV("minrelaytxfee", ::minRelayTxFee.GetFeePerK());
     ret.pushKV("unbroadcastcount", uint64_t{pool.GetUnbroadcastTxs().size()});
     return ret;
 }
 
 static UniValue getmempoolinfo(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "getmempoolinfo",
         "Returns details on the active state of the TX memory pool.\n",
         {},
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::BOOL, "loaded",
                  "True if the mempool is fully loaded"},
                 {RPCResult::Type::NUM, "size", "Current tx count"},
                 {RPCResult::Type::NUM, "bytes", "Sum of all transaction sizes"},
                 {RPCResult::Type::NUM, "usage",
                  "Total memory usage for the mempool"},
                 {RPCResult::Type::NUM, "maxmempool",
                  "Maximum memory usage for the mempool"},
                 {RPCResult::Type::STR_AMOUNT, "mempoolminfee",
                  "Minimum fee rate in " + Currency::get().ticker +
                      "/kB for tx to be accepted. Is the maximum of "
                      "minrelaytxfee and minimum mempool fee"},
                 {RPCResult::Type::STR_AMOUNT, "minrelaytxfee",
                  "Current minimum relay fee for transactions"},
                 {RPCResult::Type::NUM, "unbroadcastcount",
                  "Current number of transactions that haven't passed initial "
                  "broadcast yet"},
             }},
         RPCExamples{HelpExampleCli("getmempoolinfo", "") +
                     HelpExampleRpc("getmempoolinfo", "")},
     }
         .Check(request);
 
     return MempoolInfoToJSON(EnsureMemPool(request.context));
 }
 
 static UniValue preciousblock(const Config &config,
                               const JSONRPCRequest &request) {
     RPCHelpMan{
         "preciousblock",
         "Treats a block as if it were received before others with the same "
         "work.\n"
         "\nA later preciousblock call can override the effect of an earlier "
         "one.\n"
         "\nThe effects of preciousblock are not retained across restarts.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to mark as precious"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("preciousblock", "\"blockhash\"") +
                     HelpExampleRpc("preciousblock", "\"blockhash\"")},
     }
         .Check(request);
 
     BlockHash hash(ParseHashV(request.params[0], "blockhash"));
     CBlockIndex *pblockindex;
 
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     }
 
     BlockValidationState state;
     PreciousBlock(config, state, pblockindex);
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.GetRejectReason());
     }
 
     return NullUniValue;
 }
 
 UniValue finalizeblock(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "finalizeblock",
         "Treats a block as final. It cannot be reorged. Any chain\n"
         "that does not contain this block is invalid. Used on a less\n"
         "work chain, it can effectively PUT YOU OUT OF CONSENSUS.\n"
         "USE WITH CAUTION!\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to mark as invalid"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("finalizeblock", "\"blockhash\"") +
                     HelpExampleRpc("finalizeblock", "\"blockhash\"")},
     }
         .Check(request);
 
     std::string strHash = request.params[0].get_str();
     BlockHash hash(uint256S(strHash));
     BlockValidationState state;
 
     CBlockIndex *pblockindex = nullptr;
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     } // end of locked cs_main scope
 
     ::ChainstateActive().FinalizeBlock(config, state, pblockindex);
 
     if (state.IsValid()) {
         ActivateBestChain(config, state);
     }
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.ToString());
     }
 
     return NullUniValue;
 }
 
 static UniValue invalidateblock(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "invalidateblock",
         "Permanently marks a block as invalid, as if it violated a consensus "
         "rule.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to mark as invalid"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("invalidateblock", "\"blockhash\"") +
                     HelpExampleRpc("invalidateblock", "\"blockhash\"")},
     }
         .Check(request);
 
     const BlockHash hash(ParseHashV(request.params[0], "blockhash"));
     BlockValidationState state;
 
     CBlockIndex *pblockindex;
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     }
     ::ChainstateActive().InvalidateBlock(config, state, pblockindex);
 
     if (state.IsValid()) {
         ActivateBestChain(config, state);
     }
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.ToString());
     }
 
     return NullUniValue;
 }
 
 UniValue parkblock(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "parkblock",
         "Marks a block as parked.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to park"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("parkblock", "\"blockhash\"") +
                     HelpExampleRpc("parkblock", "\"blockhash\"")},
     }
         .Check(request);
 
     const std::string strHash = request.params[0].get_str();
     const BlockHash hash(uint256S(strHash));
     BlockValidationState state;
 
     CBlockIndex *pblockindex = nullptr;
     {
         LOCK(cs_main);
         pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
     }
     ::ChainstateActive().ParkBlock(config, state, pblockindex);
 
     if (state.IsValid()) {
         ActivateBestChain(config, state);
     }
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.GetRejectReason());
     }
 
     return NullUniValue;
 }
 
 static UniValue reconsiderblock(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "reconsiderblock",
         "Removes invalidity status of a block, its ancestors and its"
         "descendants, reconsider them for activation.\n"
         "This can be used to undo the effects of invalidateblock.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to reconsider"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("reconsiderblock", "\"blockhash\"") +
                     HelpExampleRpc("reconsiderblock", "\"blockhash\"")},
     }
         .Check(request);
 
     const BlockHash hash(ParseHashV(request.params[0], "blockhash"));
 
     {
         LOCK(cs_main);
         CBlockIndex *pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
 
         ResetBlockFailureFlags(pblockindex);
     }
 
     BlockValidationState state;
     ActivateBestChain(config, state);
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.ToString());
     }
 
     return NullUniValue;
 }
 
 UniValue unparkblock(const Config &config, const JSONRPCRequest &request) {
     RPCHelpMan{
         "unparkblock",
         "Removes parked status of a block and its descendants, reconsider "
         "them for activation.\n"
         "This can be used to undo the effects of parkblock.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "the hash of the block to unpark"},
         },
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("unparkblock", "\"blockhash\"") +
                     HelpExampleRpc("unparkblock", "\"blockhash\"")},
     }
         .Check(request);
 
     const std::string strHash = request.params[0].get_str();
     const BlockHash hash(uint256S(strHash));
 
     {
         LOCK(cs_main);
 
         CBlockIndex *pblockindex = LookupBlockIndex(hash);
         if (!pblockindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
 
         UnparkBlockAndChildren(pblockindex);
     }
 
     BlockValidationState state;
     ActivateBestChain(config, state);
 
     if (!state.IsValid()) {
         throw JSONRPCError(RPC_DATABASE_ERROR, state.GetRejectReason());
     }
 
     return NullUniValue;
 }
 
 static UniValue getchaintxstats(const Config &config,
                                 const JSONRPCRequest &request) {
     RPCHelpMan{
         "getchaintxstats",
         "Compute statistics about the total number and rate of transactions "
         "in the chain.\n",
         {
             {"nblocks", RPCArg::Type::NUM, /* default */ "one month",
              "Size of the window in number of blocks"},
             {"blockhash", RPCArg::Type::STR_HEX, /* default */ "chain tip",
              "The hash of the block that ends the window."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::NUM_TIME, "time",
                        "The timestamp for the final block in the window, "
                        "expressed in " +
                            UNIX_EPOCH_TIME},
                       {RPCResult::Type::NUM, "txcount",
                        "The total number of transactions in the chain up to "
                        "that point"},
                       {RPCResult::Type::STR_HEX, "window_final_block_hash",
                        "The hash of the final block in the window"},
                       {RPCResult::Type::NUM, "window_final_block_height",
                        "The height of the final block in the window."},
                       {RPCResult::Type::NUM, "window_block_count",
                        "Size of the window in number of blocks"},
                       {RPCResult::Type::NUM, "window_tx_count",
                        "The number of transactions in the window. Only "
                        "returned if \"window_block_count\" is > 0"},
                       {RPCResult::Type::NUM, "window_interval",
                        "The elapsed time in the window in seconds. Only "
                        "returned if \"window_block_count\" is > 0"},
                       {RPCResult::Type::NUM, "txrate",
                        "The average rate of transactions per second in the "
                        "window. Only returned if \"window_interval\" is > 0"},
                   }},
         RPCExamples{HelpExampleCli("getchaintxstats", "") +
                     HelpExampleRpc("getchaintxstats", "2016")},
     }
         .Check(request);
 
     const CBlockIndex *pindex;
 
     // By default: 1 month
     int blockcount = 30 * 24 * 60 * 60 /
                      config.GetChainParams().GetConsensus().nPowTargetSpacing;
 
     if (request.params[1].isNull()) {
         LOCK(cs_main);
         pindex = ::ChainActive().Tip();
     } else {
         BlockHash hash(ParseHashV(request.params[1], "blockhash"));
         LOCK(cs_main);
         pindex = LookupBlockIndex(hash);
         if (!pindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
         if (!::ChainActive().Contains(pindex)) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                "Block is not in main chain");
         }
     }
 
     CHECK_NONFATAL(pindex != nullptr);
 
     if (request.params[0].isNull()) {
         blockcount = std::max(0, std::min(blockcount, pindex->nHeight - 1));
     } else {
         blockcount = request.params[0].get_int();
 
         if (blockcount < 0 ||
             (blockcount > 0 && blockcount >= pindex->nHeight)) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid block count: "
                                                       "should be between 0 and "
                                                       "the block's height - 1");
         }
     }
 
     const CBlockIndex *pindexPast =
         pindex->GetAncestor(pindex->nHeight - blockcount);
     int nTimeDiff =
         pindex->GetMedianTimePast() - pindexPast->GetMedianTimePast();
     int nTxDiff = pindex->GetChainTxCount() - pindexPast->GetChainTxCount();
 
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("time", pindex->GetBlockTime());
     ret.pushKV("txcount", pindex->GetChainTxCount());
     ret.pushKV("window_final_block_hash", pindex->GetBlockHash().GetHex());
     ret.pushKV("window_final_block_height", pindex->nHeight);
     ret.pushKV("window_block_count", blockcount);
     if (blockcount > 0) {
         ret.pushKV("window_tx_count", nTxDiff);
         ret.pushKV("window_interval", nTimeDiff);
         if (nTimeDiff > 0) {
             ret.pushKV("txrate", double(nTxDiff) / nTimeDiff);
         }
     }
 
     return ret;
 }
 
 template <typename T>
 static T CalculateTruncatedMedian(std::vector<T> &scores) {
     size_t size = scores.size();
     if (size == 0) {
         return T();
     }
 
     std::sort(scores.begin(), scores.end());
     if (size % 2 == 0) {
         return (scores[size / 2 - 1] + scores[size / 2]) / 2;
     } else {
         return scores[size / 2];
     }
 }
 
 template <typename T> static inline bool SetHasKeys(const std::set<T> &set) {
     return false;
 }
 template <typename T, typename Tk, typename... Args>
 static inline bool SetHasKeys(const std::set<T> &set, const Tk &key,
                               const Args &... args) {
     return (set.count(key) != 0) || SetHasKeys(set, args...);
 }
 
 // outpoint (needed for the utxo index) + nHeight + fCoinBase
 static constexpr size_t PER_UTXO_OVERHEAD =
     sizeof(COutPoint) + sizeof(uint32_t) + sizeof(bool);
 
 static UniValue getblockstats(const Config &config,
                               const JSONRPCRequest &request) {
     const auto &ticker = Currency::get().ticker;
     RPCHelpMan{
         "getblockstats",
         "Compute per block statistics for a given window. All amounts are "
         "in " +
             ticker +
             ".\n"
             "It won't work for some heights with pruning.\n",
         {
             {"hash_or_height",
              RPCArg::Type::NUM,
              RPCArg::Optional::NO,
              "The block hash or height of the target block",
              "",
              {"", "string or numeric"}},
             {"stats",
              RPCArg::Type::ARR,
              /* default */ "all values",
              "Values to plot (see result below)",
              {
                  {"height", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                   "Selected statistic"},
                  {"time", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                   "Selected statistic"},
              },
              "stats"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::NUM, "avgfee", "Average fee in the block"},
                 {RPCResult::Type::NUM, "avgfeerate",
                  "Average feerate (in satoshis per virtual byte)"},
                 {RPCResult::Type::NUM, "avgtxsize", "Average transaction size"},
                 {RPCResult::Type::STR_HEX, "blockhash",
                  "The block hash (to check for potential reorgs)"},
                 {RPCResult::Type::NUM, "height", "The height of the block"},
                 {RPCResult::Type::NUM, "ins",
                  "The number of inputs (excluding coinbase)"},
                 {RPCResult::Type::NUM, "maxfee", "Maximum fee in the block"},
                 {RPCResult::Type::NUM, "maxfeerate",
                  "Maximum feerate (in satoshis per virtual byte)"},
                 {RPCResult::Type::NUM, "maxtxsize", "Maximum transaction size"},
                 {RPCResult::Type::NUM, "medianfee",
                  "Truncated median fee in the block"},
                 {RPCResult::Type::NUM, "medianfeerate",
                  "Truncated median feerate (in " + ticker + " per byte)"},
                 {RPCResult::Type::NUM, "mediantime",
                  "The block median time past"},
                 {RPCResult::Type::NUM, "mediantxsize",
                  "Truncated median transaction size"},
                 {RPCResult::Type::NUM, "minfee", "Minimum fee in the block"},
                 {RPCResult::Type::NUM, "minfeerate",
                  "Minimum feerate (in satoshis per virtual byte)"},
                 {RPCResult::Type::NUM, "mintxsize", "Minimum transaction size"},
                 {RPCResult::Type::NUM, "outs", "The number of outputs"},
                 {RPCResult::Type::NUM, "subsidy", "The block subsidy"},
                 {RPCResult::Type::NUM, "time", "The block time"},
                 {RPCResult::Type::NUM, "total_out",
                  "Total amount in all outputs (excluding coinbase and thus "
                  "reward [ie subsidy + totalfee])"},
                 {RPCResult::Type::NUM, "total_size",
                  "Total size of all non-coinbase transactions"},
                 {RPCResult::Type::NUM, "totalfee", "The fee total"},
                 {RPCResult::Type::NUM, "txs",
                  "The number of transactions (excluding coinbase)"},
                 {RPCResult::Type::NUM, "utxo_increase",
                  "The increase/decrease in the number of unspent outputs"},
                 {RPCResult::Type::NUM, "utxo_size_inc",
                  "The increase/decrease in size for the utxo index (not "
                  "discounting op_return and similar)"},
             }},
         RPCExamples{
             HelpExampleCli(
                 "getblockstats",
                 R"('"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09"' '["minfeerate","avgfeerate"]')") +
             HelpExampleCli("getblockstats",
                            R"(1000 '["minfeerate","avgfeerate"]')") +
             HelpExampleRpc(
                 "getblockstats",
                 R"("00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09", ["minfeerate","avgfeerate"])") +
             HelpExampleRpc("getblockstats",
                            R"(1000, ["minfeerate","avgfeerate"])")},
     }
         .Check(request);
 
     LOCK(cs_main);
 
     CBlockIndex *pindex;
     if (request.params[0].isNum()) {
         const int height = request.params[0].get_int();
         const int current_tip = ::ChainActive().Height();
         if (height < 0) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Target block height %d is negative", height));
         }
         if (height > current_tip) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Target block height %d after current tip %d", height,
                           current_tip));
         }
 
         pindex = ::ChainActive()[height];
     } else {
         const BlockHash hash(ParseHashV(request.params[0], "hash_or_height"));
         pindex = LookupBlockIndex(hash);
         if (!pindex) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
         if (!::ChainActive().Contains(pindex)) {
             throw JSONRPCError(RPC_INVALID_PARAMETER,
                                strprintf("Block is not in chain %s",
                                          Params().NetworkIDString()));
         }
     }
 
     CHECK_NONFATAL(pindex != nullptr);
 
     std::set<std::string> stats;
     if (!request.params[1].isNull()) {
         const UniValue stats_univalue = request.params[1].get_array();
         for (unsigned int i = 0; i < stats_univalue.size(); i++) {
             const std::string stat = stats_univalue[i].get_str();
             stats.insert(stat);
         }
     }
 
     const CBlock block = GetBlockChecked(config, pindex);
     const CBlockUndo blockUndo = GetUndoChecked(pindex);
 
     // Calculate everything if nothing selected (default)
     const bool do_all = stats.size() == 0;
     const bool do_mediantxsize = do_all || stats.count("mediantxsize") != 0;
     const bool do_medianfee = do_all || stats.count("medianfee") != 0;
     const bool do_medianfeerate = do_all || stats.count("medianfeerate") != 0;
     const bool loop_inputs =
         do_all || do_medianfee || do_medianfeerate ||
         SetHasKeys(stats, "utxo_size_inc", "totalfee", "avgfee", "avgfeerate",
                    "minfee", "maxfee", "minfeerate", "maxfeerate");
     const bool loop_outputs = do_all || loop_inputs || stats.count("total_out");
     const bool do_calculate_size =
         do_mediantxsize || loop_inputs ||
         SetHasKeys(stats, "total_size", "avgtxsize", "mintxsize", "maxtxsize");
 
     const int64_t blockMaxSize = config.GetMaxBlockSize();
     Amount maxfee = Amount::zero();
     Amount maxfeerate = Amount::zero();
     Amount minfee = MAX_MONEY;
     Amount minfeerate = MAX_MONEY;
     Amount total_out = Amount::zero();
     Amount totalfee = Amount::zero();
     int64_t inputs = 0;
     int64_t maxtxsize = 0;
     int64_t mintxsize = blockMaxSize;
     int64_t outputs = 0;
     int64_t total_size = 0;
     int64_t utxo_size_inc = 0;
     std::vector<Amount> fee_array;
     std::vector<Amount> feerate_array;
     std::vector<int64_t> txsize_array;
 
     for (size_t i = 0; i < block.vtx.size(); ++i) {
         const auto &tx = block.vtx.at(i);
         outputs += tx->vout.size();
         Amount tx_total_out = Amount::zero();
         if (loop_outputs) {
             for (const CTxOut &out : tx->vout) {
                 tx_total_out += out.nValue;
                 utxo_size_inc +=
                     GetSerializeSize(out, PROTOCOL_VERSION) + PER_UTXO_OVERHEAD;
             }
         }
 
         if (tx->IsCoinBase()) {
             continue;
         }
 
         // Don't count coinbase's fake input
         inputs += tx->vin.size();
         // Don't count coinbase reward
         total_out += tx_total_out;
 
         int64_t tx_size = 0;
         if (do_calculate_size) {
             tx_size = tx->GetTotalSize();
             if (do_mediantxsize) {
                 txsize_array.push_back(tx_size);
             }
             maxtxsize = std::max(maxtxsize, tx_size);
             mintxsize = std::min(mintxsize, tx_size);
             total_size += tx_size;
         }
 
         if (loop_inputs) {
             Amount tx_total_in = Amount::zero();
             const auto &txundo = blockUndo.vtxundo.at(i - 1);
             for (const Coin &coin : txundo.vprevout) {
                 const CTxOut &prevoutput = coin.GetTxOut();
 
                 tx_total_in += prevoutput.nValue;
                 utxo_size_inc -=
                     GetSerializeSize(prevoutput, PROTOCOL_VERSION) +
                     PER_UTXO_OVERHEAD;
             }
 
             Amount txfee = tx_total_in - tx_total_out;
             CHECK_NONFATAL(MoneyRange(txfee));
             if (do_medianfee) {
                 fee_array.push_back(txfee);
             }
             maxfee = std::max(maxfee, txfee);
             minfee = std::min(minfee, txfee);
             totalfee += txfee;
 
             Amount feerate = txfee / tx_size;
             if (do_medianfeerate) {
                 feerate_array.push_back(feerate);
             }
             maxfeerate = std::max(maxfeerate, feerate);
             minfeerate = std::min(minfeerate, feerate);
         }
     }
 
     UniValue ret_all(UniValue::VOBJ);
     ret_all.pushKV("avgfee", block.vtx.size() > 1
                                  ? (totalfee / int((block.vtx.size() - 1)))
                                  : Amount::zero());
     ret_all.pushKV("avgfeerate",
                    total_size > 0 ? (totalfee / total_size) : Amount::zero());
     ret_all.pushKV("avgtxsize", (block.vtx.size() > 1)
                                     ? total_size / (block.vtx.size() - 1)
                                     : 0);
     ret_all.pushKV("blockhash", pindex->GetBlockHash().GetHex());
     ret_all.pushKV("height", (int64_t)pindex->nHeight);
     ret_all.pushKV("ins", inputs);
     ret_all.pushKV("maxfee", maxfee);
     ret_all.pushKV("maxfeerate", maxfeerate);
     ret_all.pushKV("maxtxsize", maxtxsize);
     ret_all.pushKV("medianfee", CalculateTruncatedMedian(fee_array));
     ret_all.pushKV("medianfeerate", CalculateTruncatedMedian(feerate_array));
     ret_all.pushKV("mediantime", pindex->GetMedianTimePast());
     ret_all.pushKV("mediantxsize", CalculateTruncatedMedian(txsize_array));
     ret_all.pushKV("minfee", minfee == MAX_MONEY ? Amount::zero() : minfee);
     ret_all.pushKV("minfeerate",
                    minfeerate == MAX_MONEY ? Amount::zero() : minfeerate);
     ret_all.pushKV("mintxsize", mintxsize == blockMaxSize ? 0 : mintxsize);
     ret_all.pushKV("outs", outputs);
     ret_all.pushKV("subsidy",
                    GetBlockSubsidy(pindex->nHeight, Params().GetConsensus()));
     ret_all.pushKV("time", pindex->GetBlockTime());
     ret_all.pushKV("total_out", total_out);
     ret_all.pushKV("total_size", total_size);
     ret_all.pushKV("totalfee", totalfee);
     ret_all.pushKV("txs", (int64_t)block.vtx.size());
     ret_all.pushKV("utxo_increase", outputs - inputs);
     ret_all.pushKV("utxo_size_inc", utxo_size_inc);
 
     if (do_all) {
         return ret_all;
     }
 
     UniValue ret(UniValue::VOBJ);
     for (const std::string &stat : stats) {
         const UniValue &value = ret_all[stat];
         if (value.isNull()) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 strprintf("Invalid selected statistic %s", stat));
         }
         ret.pushKV(stat, value);
     }
     return ret;
 }
 
 static UniValue savemempool(const Config &config,
                             const JSONRPCRequest &request) {
     RPCHelpMan{
         "savemempool",
         "Dumps the mempool to disk. It will fail until the previous dump is "
         "fully loaded.\n",
         {},
         RPCResult{RPCResult::Type::NONE, "", ""},
         RPCExamples{HelpExampleCli("savemempool", "") +
                     HelpExampleRpc("savemempool", "")},
     }
         .Check(request);
 
     const CTxMemPool &mempool = EnsureMemPool(request.context);
 
     if (!mempool.IsLoaded()) {
         throw JSONRPCError(RPC_MISC_ERROR, "The mempool was not loaded yet");
     }
 
     if (!DumpMempool(mempool)) {
         throw JSONRPCError(RPC_MISC_ERROR, "Unable to dump mempool to disk");
     }
 
     return NullUniValue;
 }
 
 namespace {
 //! Search for a given set of pubkey scripts
 static bool FindScriptPubKey(std::atomic<int> &scan_progress,
                              const std::atomic<bool> &should_abort,
                              int64_t &count, CCoinsViewCursor *cursor,
                              const std::set<CScript> &needles,
                              std::map<COutPoint, Coin> &out_results,
                              std::function<void()> &interruption_point) {
     scan_progress = 0;
     count = 0;
     while (cursor->Valid()) {
         COutPoint key;
         Coin coin;
         if (!cursor->GetKey(key) || !cursor->GetValue(coin)) {
             return false;
         }
         if (++count % 8192 == 0) {
             interruption_point();
             if (should_abort) {
                 // allow to abort the scan via the abort reference
                 return false;
             }
         }
         if (count % 256 == 0) {
             // update progress reference every 256 item
             const TxId &txid = key.GetTxId();
             uint32_t high = 0x100 * *txid.begin() + *(txid.begin() + 1);
             scan_progress = int(high * 100.0 / 65536.0 + 0.5);
         }
         if (needles.count(coin.GetTxOut().scriptPubKey)) {
             out_results.emplace(key, coin);
         }
         cursor->Next();
     }
     scan_progress = 100;
     return true;
 }
 } // namespace
 
 /** RAII object to prevent concurrency issue when scanning the txout set */
 static std::atomic<int> g_scan_progress;
 static std::atomic<bool> g_scan_in_progress;
 static std::atomic<bool> g_should_abort_scan;
 class CoinsViewScanReserver {
 private:
     bool m_could_reserve;
 
 public:
     explicit CoinsViewScanReserver() : m_could_reserve(false) {}
 
     bool reserve() {
         CHECK_NONFATAL(!m_could_reserve);
         if (g_scan_in_progress.exchange(true)) {
             return false;
         }
         m_could_reserve = true;
         return true;
     }
 
     ~CoinsViewScanReserver() {
         if (m_could_reserve) {
             g_scan_in_progress = false;
         }
     }
 };
 
 static UniValue scantxoutset(const Config &config,
                              const JSONRPCRequest &request) {
     const auto &ticker = Currency::get().ticker;
     RPCHelpMan{
         "scantxoutset",
         "EXPERIMENTAL warning: this call may be removed or changed in future "
         "releases.\n"
         "\nScans the unspent transaction output set for entries that match "
         "certain output descriptors.\n"
         "Examples of output descriptors are:\n"
         "    addr(<address>)                      Outputs whose scriptPubKey "
         "corresponds to the specified address (does not include P2PK)\n"
         "    raw(<hex script>)                    Outputs whose scriptPubKey "
         "equals the specified hex scripts\n"
         "    combo(<pubkey>)                      P2PK and P2PKH outputs for "
         "the given pubkey\n"
         "    pkh(<pubkey>)                        P2PKH outputs for the given "
         "pubkey\n"
         "    sh(multi(<n>,<pubkey>,<pubkey>,...)) P2SH-multisig outputs for "
         "the given threshold and pubkeys\n"
         "\nIn the above, <pubkey> either refers to a fixed public key in "
         "hexadecimal notation, or to an xpub/xprv optionally followed by one\n"
         "or more path elements separated by \"/\", and optionally ending in "
         "\"/*\" (unhardened), or \"/*'\" or \"/*h\" (hardened) to specify all\n"
         "unhardened or hardened child keys.\n"
         "In the latter case, a range needs to be specified by below if "
         "different from 1000.\n"
         "For more information on output descriptors, see the documentation in "
         "the doc/descriptors.md file.\n",
         {
             {"action", RPCArg::Type::STR, RPCArg::Optional::NO,
              "The action to execute\n"
              "                                      \"start\" for starting a "
              "scan\n"
              "                                      \"abort\" for aborting the "
              "current scan (returns true when abort was successful)\n"
              "                                      \"status\" for "
              "progress report (in %) of the current scan"},
             {"scanobjects",
              RPCArg::Type::ARR,
              RPCArg::Optional::OMITTED,
              "Array of scan objects. Required for \"start\" action\n"
              "                                  Every scan object is either a "
              "string descriptor or an object:",
              {
                  {"descriptor", RPCArg::Type::STR, RPCArg::Optional::OMITTED,
                   "An output descriptor"},
                  {
                      "",
                      RPCArg::Type::OBJ,
                      RPCArg::Optional::OMITTED,
                      "An object with output descriptor and metadata",
                      {
                          {"desc", RPCArg::Type::STR, RPCArg::Optional::NO,
                           "An output descriptor"},
                          {"range", RPCArg::Type::RANGE, /* default */ "1000",
                           "The range of HD chain indexes to explore (either "
                           "end or [begin,end])"},
                      },
                  },
              },
              "[scanobjects,...]"},
         },
         RPCResult{
             RPCResult::Type::OBJ,
             "",
             "",
             {
                 {RPCResult::Type::BOOL, "success",
                  "Whether the scan was completed"},
                 {RPCResult::Type::NUM, "txouts",
                  "The number of unspent transaction outputs scanned"},
                 {RPCResult::Type::NUM, "height",
                  "The current block height (index)"},
                 {RPCResult::Type::STR_HEX, "bestblock",
                  "The hash of the block at the tip of the chain"},
                 {RPCResult::Type::ARR,
                  "unspents",
                  "",
                  {
                      {RPCResult::Type::OBJ,
                       "",
                       "",
                       {
                           {RPCResult::Type::STR_HEX, "txid",
                            "The transaction id"},
                           {RPCResult::Type::NUM, "vout", "The vout value"},
                           {RPCResult::Type::STR_HEX, "scriptPubKey",
                            "The script key"},
                           {RPCResult::Type::STR, "desc",
                            "A specialized descriptor for the matched "
                            "scriptPubKey"},
                           {RPCResult::Type::STR_AMOUNT, "amount",
                            "The total amount in " + ticker +
                                " of the unspent output"},
                           {RPCResult::Type::NUM, "height",
                            "Height of the unspent transaction output"},
                       }},
                  }},
                 {RPCResult::Type::STR_AMOUNT, "total_amount",
                  "The total amount of all found unspent outputs in " + ticker},
             }},
         RPCExamples{""},
     }
         .Check(request);
 
     RPCTypeCheck(request.params, {UniValue::VSTR, UniValue::VARR});
 
     UniValue result(UniValue::VOBJ);
     if (request.params[0].get_str() == "status") {
         CoinsViewScanReserver reserver;
         if (reserver.reserve()) {
             // no scan in progress
             return NullUniValue;
         }
         result.pushKV("progress", g_scan_progress.load());
         return result;
     } else if (request.params[0].get_str() == "abort") {
         CoinsViewScanReserver reserver;
         if (reserver.reserve()) {
             // reserve was possible which means no scan was running
             return false;
         }
         // set the abort flag
         g_should_abort_scan = true;
         return true;
     } else if (request.params[0].get_str() == "start") {
         CoinsViewScanReserver reserver;
         if (!reserver.reserve()) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 "Scan already in progress, use action \"abort\" or \"status\"");
         }
 
         if (request.params.size() < 2) {
             throw JSONRPCError(
                 RPC_MISC_ERROR,
                 "scanobjects argument is required for the start action");
         }
 
         std::set<CScript> needles;
         std::map<CScript, std::string> descriptors;
         Amount total_in = Amount::zero();
 
         // loop through the scan objects
         for (const UniValue &scanobject :
              request.params[1].get_array().getValues()) {
             FlatSigningProvider provider;
             auto scripts = EvalDescriptorStringOrObject(scanobject, provider);
             for (const auto &script : scripts) {
                 std::string inferred =
                     InferDescriptor(script, provider)->ToString();
                 needles.emplace(script);
                 descriptors.emplace(std::move(script), std::move(inferred));
             }
         }
 
         // Scan the unspent transaction output set for inputs
         UniValue unspents(UniValue::VARR);
         std::vector<CTxOut> input_txos;
         std::map<COutPoint, Coin> coins;
         g_should_abort_scan = false;
         g_scan_progress = 0;
         int64_t count = 0;
         std::unique_ptr<CCoinsViewCursor> pcursor;
         CBlockIndex *tip;
         {
             LOCK(cs_main);
             ::ChainstateActive().ForceFlushStateToDisk();
             pcursor = std::unique_ptr<CCoinsViewCursor>(
                 ::ChainstateActive().CoinsDB().Cursor());
             CHECK_NONFATAL(pcursor);
             tip = ::ChainActive().Tip();
             CHECK_NONFATAL(tip);
         }
         NodeContext &node = EnsureNodeContext(request.context);
         bool res = FindScriptPubKey(g_scan_progress, g_should_abort_scan, count,
                                     pcursor.get(), needles, coins,
                                     node.rpc_interruption_point);
         result.pushKV("success", res);
         result.pushKV("txouts", count);
         result.pushKV("height", tip->nHeight);
         result.pushKV("bestblock", tip->GetBlockHash().GetHex());
 
         for (const auto &it : coins) {
             const COutPoint &outpoint = it.first;
             const Coin &coin = it.second;
             const CTxOut &txo = coin.GetTxOut();
             input_txos.push_back(txo);
             total_in += txo.nValue;
 
             UniValue unspent(UniValue::VOBJ);
             unspent.pushKV("txid", outpoint.GetTxId().GetHex());
             unspent.pushKV("vout", int32_t(outpoint.GetN()));
             unspent.pushKV("scriptPubKey", HexStr(txo.scriptPubKey));
             unspent.pushKV("desc", descriptors[txo.scriptPubKey]);
             unspent.pushKV("amount", txo.nValue);
             unspent.pushKV("height", int32_t(coin.GetHeight()));
 
             unspents.push_back(unspent);
         }
         result.pushKV("unspents", unspents);
         result.pushKV("total_amount", total_in);
     } else {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid command");
     }
     return result;
 }
 
 static UniValue getblockfilter(const Config &config,
                                const JSONRPCRequest &request) {
     RPCHelpMan{
         "getblockfilter",
         "Retrieve a BIP 157 content filter for a particular block.\n",
         {
             {"blockhash", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
              "The hash of the block"},
             {"filtertype", RPCArg::Type::STR, /*default*/ "basic",
              "The type name of the filter"},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::STR_HEX, "filter",
                        "the hex-encoded filter data"},
                       {RPCResult::Type::STR_HEX, "header",
                        "the hex-encoded filter header"},
                   }},
         RPCExamples{
             HelpExampleCli("getblockfilter",
                            "\"00000000c937983704a73af28acdec37b049d214a"
                            "dbda81d7e2a3dd146f6ed09\" \"basic\"") +
             HelpExampleRpc("getblockfilter",
                            "\"00000000c937983704a73af28acdec37b049d214adbda81d7"
                            "e2a3dd146f6ed09\", \"basic\"")}}
         .Check(request);
 
     const BlockHash block_hash(ParseHashV(request.params[0], "blockhash"));
     std::string filtertype_name = "basic";
     if (!request.params[1].isNull()) {
         filtertype_name = request.params[1].get_str();
     }
 
     BlockFilterType filtertype;
     if (!BlockFilterTypeByName(filtertype_name, filtertype)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Unknown filtertype");
     }
 
     BlockFilterIndex *index = GetBlockFilterIndex(filtertype);
     if (!index) {
         throw JSONRPCError(RPC_MISC_ERROR,
                            "Index is not enabled for filtertype " +
                                filtertype_name);
     }
 
     const CBlockIndex *block_index;
     bool block_was_connected;
     {
         LOCK(cs_main);
         block_index = LookupBlockIndex(block_hash);
         if (!block_index) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
         }
         block_was_connected = block_index->IsValid(BlockValidity::SCRIPTS);
     }
 
     bool index_ready = index->BlockUntilSyncedToCurrentChain();
 
     BlockFilter filter;
     uint256 filter_header;
     if (!index->LookupFilter(block_index, filter) ||
         !index->LookupFilterHeader(block_index, filter_header)) {
         int err_code;
         std::string errmsg = "Filter not found.";
 
         if (!block_was_connected) {
             err_code = RPC_INVALID_ADDRESS_OR_KEY;
             errmsg += " Block was not connected to active chain.";
         } else if (!index_ready) {
             err_code = RPC_MISC_ERROR;
             errmsg +=
                 " Block filters are still in the process of being indexed.";
         } else {
             err_code = RPC_INTERNAL_ERROR;
             errmsg +=
                 " This error is unexpected and indicates index corruption.";
         }
 
         throw JSONRPCError(err_code, errmsg);
     }
 
     UniValue ret(UniValue::VOBJ);
     ret.pushKV("filter", HexStr(filter.GetEncodedFilter()));
     ret.pushKV("header", filter_header.GetHex());
     return ret;
 }
 
 /**
  * Serialize the UTXO set to a file for loading elsewhere.
  *
  * @see SnapshotMetadata
  */
 static UniValue dumptxoutset(const Config &config,
                              const JSONRPCRequest &request) {
     RPCHelpMan{
         "dumptxoutset",
         "\nWrite the serialized UTXO set to disk.\n",
         {
             {"path", RPCArg::Type::STR, RPCArg::Optional::NO,
              /* default_val */ "",
              "path to the output file. If relative, will be prefixed by "
              "datadir."},
         },
         RPCResult{RPCResult::Type::OBJ,
                   "",
                   "",
                   {
                       {RPCResult::Type::NUM, "coins_written",
                        "the number of coins written in the snapshot"},
                       {RPCResult::Type::STR_HEX, "base_hash",
                        "the hash of the base of the snapshot"},
                       {RPCResult::Type::NUM, "base_height",
                        "the height of the base of the snapshot"},
                       {RPCResult::Type::STR, "path",
                        "the absolute path that the snapshot was written to"},
                   }},
         RPCExamples{HelpExampleCli("dumptxoutset", "utxo.dat")}}
         .Check(request);
 
     fs::path path = fs::absolute(request.params[0].get_str(), GetDataDir());
     // Write to a temporary path and then move into `path` on completion
     // to avoid confusion due to an interruption.
     fs::path temppath =
         fs::absolute(request.params[0].get_str() + ".incomplete", GetDataDir());
 
     if (fs::exists(path)) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             path.string() +
                 " already exists. If you are sure this is what you want, "
                 "move it out of the way first");
     }
 
     FILE *file{fsbridge::fopen(temppath, "wb")};
     CAutoFile afile{file, SER_DISK, CLIENT_VERSION};
     std::unique_ptr<CCoinsViewCursor> pcursor;
     CCoinsStats stats;
     CBlockIndex *tip;
     NodeContext &node = EnsureNodeContext(request.context);
 
     {
         // We need to lock cs_main to ensure that the coinsdb isn't written to
         // between (i) flushing coins cache to disk (coinsdb), (ii) getting
         // stats based upon the coinsdb, and (iii) constructing a cursor to the
         // coinsdb for use below this block.
         //
         // Cursors returned by leveldb iterate over snapshots, so the contents
         // of the pcursor will not be affected by simultaneous writes during
         // use below this block.
         //
         // See discussion here:
         //   https://github.com/bitcoin/bitcoin/pull/15606#discussion_r274479369
         //
         LOCK(::cs_main);
 
         ::ChainstateActive().ForceFlushStateToDisk();
 
         if (!GetUTXOStats(&::ChainstateActive().CoinsDB(), stats,
+                          CoinStatsHashType::HASH_SERIALIZED,
                           node.rpc_interruption_point)) {
             throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
         }
 
         pcursor = std::unique_ptr<CCoinsViewCursor>(
             ::ChainstateActive().CoinsDB().Cursor());
         tip = LookupBlockIndex(stats.hashBlock);
         CHECK_NONFATAL(tip);
     }
 
     SnapshotMetadata metadata{tip->GetBlockHash(), stats.coins_count,
                               uint64_t(tip->GetChainTxCount())};
 
     afile << metadata;
 
     COutPoint key;
     Coin coin;
     unsigned int iter{0};
 
     while (pcursor->Valid()) {
         if (iter % 5000 == 0) {
             node.rpc_interruption_point();
         }
         ++iter;
         if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
             afile << key;
             afile << coin;
         }
 
         pcursor->Next();
     }
 
     afile.fclose();
     fs::rename(temppath, path);
 
     UniValue result(UniValue::VOBJ);
     result.pushKV("coins_written", stats.coins_count);
     result.pushKV("base_hash", tip->GetBlockHash().ToString());
     result.pushKV("base_height", tip->nHeight);
     result.pushKV("path", path.string());
     return result;
 }
 
 void RegisterBlockchainRPCCommands(CRPCTable &t) {
     // clang-format off
     static const CRPCCommand commands[] = {
         //  category            name                      actor (function)        argNames
         //  ------------------- ------------------------  ----------------------  ----------
         { "blockchain",         "getbestblockhash",       getbestblockhash,       {} },
         { "blockchain",         "getblock",               getblock,               {"blockhash","verbosity|verbose"} },
         { "blockchain",         "getblockchaininfo",      getblockchaininfo,      {} },
         { "blockchain",         "getblockcount",          getblockcount,          {} },
         { "blockchain",         "getblockhash",           getblockhash,           {"height"} },
         { "blockchain",         "getblockheader",         getblockheader,         {"blockhash","verbose"} },
         { "blockchain",         "getblockstats",          getblockstats,          {"hash_or_height","stats"} },
         { "blockchain",         "getchaintips",           getchaintips,           {} },
         { "blockchain",         "getchaintxstats",        getchaintxstats,        {"nblocks", "blockhash"} },
         { "blockchain",         "getdifficulty",            getdifficulty,            {} },
         { "blockchain",         "getmempoolancestors",    getmempoolancestors,    {"txid","verbose"} },
         { "blockchain",         "getmempooldescendants",  getmempooldescendants,  {"txid","verbose"} },
         { "blockchain",         "getmempoolentry",        getmempoolentry,        {"txid"} },
         { "blockchain",         "getmempoolinfo",         getmempoolinfo,         {} },
         { "blockchain",         "getrawmempool",          getrawmempool,          {"verbose"} },
         { "blockchain",         "gettxout",               gettxout,               {"txid","n","include_mempool"} },
-        { "blockchain",         "gettxoutsetinfo",        gettxoutsetinfo,        {} },
+        { "blockchain",         "gettxoutsetinfo",        gettxoutsetinfo,        {"hash_type"} },
         { "blockchain",         "pruneblockchain",        pruneblockchain,        {"height"} },
         { "blockchain",         "savemempool",            savemempool,            {} },
         { "blockchain",         "verifychain",            verifychain,            {"checklevel","nblocks"} },
         { "blockchain",         "preciousblock",          preciousblock,          {"blockhash"} },
         { "blockchain",         "scantxoutset",           scantxoutset,           {"action", "scanobjects"} },
         { "blockchain",         "getblockfilter",          getblockfilter,          {"blockhash", "filtertype"} },
 
         /* Not shown in help */
         { "hidden",             "getfinalizedblockhash",             getfinalizedblockhash,             {} },
         { "hidden",             "finalizeblock",                     finalizeblock,                     {"blockhash"} },
         { "hidden",             "invalidateblock",                  invalidateblock,                  {"blockhash"} },
         { "hidden",             "parkblock",                        parkblock,                        {"blockhash"} },
         { "hidden",             "reconsiderblock",                  reconsiderblock,                  {"blockhash"} },
         { "hidden",             "syncwithvalidationinterfacequeue", syncwithvalidationinterfacequeue, {} },
         { "hidden",             "dumptxoutset",                     dumptxoutset,                     {"path"} },
         { "hidden",             "unparkblock",                      unparkblock,                      {"blockhash"} },
         { "hidden",             "waitfornewblock",                  waitfornewblock,                  {"timeout"} },
         { "hidden",             "waitforblock",                     waitforblock,                     {"blockhash","timeout"} },
         { "hidden",             "waitforblockheight",               waitforblockheight,               {"height","timeout"} },
     };
     // clang-format on
 
     for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++) {
         t.appendCommand(commands[vcidx].name, &commands[vcidx]);
     }
 }
diff --git a/src/rpc/util.cpp b/src/rpc/util.cpp
index 493506af8..af66a4f67 100644
--- a/src/rpc/util.cpp
+++ b/src/rpc/util.cpp
@@ -1,904 +1,921 @@
 // Copyright (c) 2017-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <rpc/util.h>
 
 #include <key_io.h>
 #include <script/descriptor.h>
 #include <script/signingprovider.h>
 #include <tinyformat.h>
 #include <util/strencodings.h>
 #include <util/string.h>
 #include <util/translation.h>
 
 #include <tuple>
 
 #include <boost/algorithm/string/classification.hpp>
 #include <boost/algorithm/string/split.hpp>
 #include <boost/variant/static_visitor.hpp>
 
 const std::string UNIX_EPOCH_TIME = "UNIX epoch time";
 const std::string EXAMPLE_ADDRESS =
     "\"qrmzys48glkpevp2l4t24jtcltc9hyzx9cep2qffm4\"";
 
 void RPCTypeCheck(const UniValue &params,
                   const std::list<UniValueType> &typesExpected,
                   bool fAllowNull) {
     unsigned int i = 0;
     for (const UniValueType &t : typesExpected) {
         if (params.size() <= i) {
             break;
         }
 
         const UniValue &v = params[i];
         if (!(fAllowNull && v.isNull())) {
             RPCTypeCheckArgument(v, t);
         }
         i++;
     }
 }
 
 void RPCTypeCheckArgument(const UniValue &value,
                           const UniValueType &typeExpected) {
     if (!typeExpected.typeAny && value.type() != typeExpected.type) {
         throw JSONRPCError(RPC_TYPE_ERROR,
                            strprintf("Expected type %s, got %s",
                                      uvTypeName(typeExpected.type),
                                      uvTypeName(value.type())));
     }
 }
 
 void RPCTypeCheckObj(const UniValue &o,
                      const std::map<std::string, UniValueType> &typesExpected,
                      bool fAllowNull, bool fStrict) {
     for (const auto &t : typesExpected) {
         const UniValue &v = find_value(o, t.first);
         if (!fAllowNull && v.isNull()) {
             throw JSONRPCError(RPC_TYPE_ERROR,
                                strprintf("Missing %s", t.first));
         }
 
         if (!(t.second.typeAny || v.type() == t.second.type ||
               (fAllowNull && v.isNull()))) {
             std::string err = strprintf("Expected type %s for %s, got %s",
                                         uvTypeName(t.second.type), t.first,
                                         uvTypeName(v.type()));
             throw JSONRPCError(RPC_TYPE_ERROR, err);
         }
     }
 
     if (fStrict) {
         for (const std::string &k : o.getKeys()) {
             if (typesExpected.count(k) == 0) {
                 std::string err = strprintf("Unexpected key %s", k);
                 throw JSONRPCError(RPC_TYPE_ERROR, err);
             }
         }
     }
 }
 
 Amount AmountFromValue(const UniValue &value) {
     if (!value.isNum() && !value.isStr()) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Amount is not a number or string");
     }
 
     int64_t n;
     if (!ParseFixedPoint(value.getValStr(), Currency::get().decimals, &n)) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount");
     }
 
     Amount amt = n * SATOSHI;
     if (!MoneyRange(amt)) {
         throw JSONRPCError(RPC_TYPE_ERROR, "Amount out of range");
     }
 
     return amt;
 }
 
 uint256 ParseHashV(const UniValue &v, std::string strName) {
     std::string strHex(v.get_str());
     if (64 != strHex.length()) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             strprintf("%s must be of length %d (not %d, for '%s')", strName, 64,
                       strHex.length(), strHex));
     }
     // Note: IsHex("") is false
     if (!IsHex(strHex)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strName + " must be hexadecimal string (not '" +
                                strHex + "')");
     }
     return uint256S(strHex);
 }
 
 uint256 ParseHashO(const UniValue &o, std::string strKey) {
     return ParseHashV(find_value(o, strKey), strKey);
 }
 
 std::vector<uint8_t> ParseHexV(const UniValue &v, std::string strName) {
     std::string strHex;
     if (v.isStr()) {
         strHex = v.get_str();
     }
     if (!IsHex(strHex)) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strName + " must be hexadecimal string (not '" +
                                strHex + "')");
     }
 
     return ParseHex(strHex);
 }
 
 std::vector<uint8_t> ParseHexO(const UniValue &o, std::string strKey) {
     return ParseHexV(find_value(o, strKey), strKey);
 }
 
+CoinStatsHashType ParseHashType(const UniValue &param,
+                                const CoinStatsHashType default_type) {
+    if (param.isNull()) {
+        return default_type;
+    } else {
+        std::string hash_type_input = param.get_str();
+
+        if (hash_type_input == "hash_serialized") {
+            return CoinStatsHashType::HASH_SERIALIZED;
+        } else {
+            throw JSONRPCError(
+                RPC_INVALID_PARAMETER,
+                strprintf("%d is not a valid hash_type", hash_type_input));
+        }
+    }
+}
+
 std::string HelpExampleCli(const std::string &methodname,
                            const std::string &args) {
     return "> bitcoin-cli " + methodname + " " + args + "\n";
 }
 
 std::string HelpExampleRpc(const std::string &methodname,
                            const std::string &args) {
     return "> curl --user myusername --data-binary '{\"jsonrpc\": \"1.0\", "
            "\"id\": \"curltest\", "
            "\"method\": \"" +
            methodname + "\", \"params\": [" + args +
            "]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/\n";
 }
 
 // Converts a hex string to a public key if possible
 CPubKey HexToPubKey(const std::string &hex_in) {
     if (!IsHex(hex_in)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid public key: " + hex_in);
     }
     CPubKey vchPubKey(ParseHex(hex_in));
     if (!vchPubKey.IsFullyValid()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid public key: " + hex_in);
     }
     return vchPubKey;
 }
 
 // Retrieves a public key for an address from the given FillableSigningProvider
 CPubKey AddrToPubKey(const CChainParams &chainparams,
                      const FillableSigningProvider &keystore,
                      const std::string &addr_in) {
     CTxDestination dest = DecodeDestination(addr_in, chainparams);
     if (!IsValidDestination(dest)) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            "Invalid address: " + addr_in);
     }
     CKeyID key = GetKeyForDestination(keystore, dest);
     if (key.IsNull()) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY,
                            strprintf("%s does not refer to a key", addr_in));
     }
     CPubKey vchPubKey;
     if (!keystore.GetPubKey(key, vchPubKey)) {
         throw JSONRPCError(
             RPC_INVALID_ADDRESS_OR_KEY,
             strprintf("no full public key for address %s", addr_in));
     }
     if (!vchPubKey.IsFullyValid()) {
         throw JSONRPCError(RPC_INTERNAL_ERROR,
                            "Wallet contains an invalid public key");
     }
     return vchPubKey;
 }
 
 // Creates a multisig address from a given list of public keys, number of
 // signatures required, and the address type
 CTxDestination AddAndGetMultisigDestination(const int required,
                                             const std::vector<CPubKey> &pubkeys,
                                             OutputType type,
                                             FillableSigningProvider &keystore,
                                             CScript &script_out) {
     // Gather public keys
     if (required < 1) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             "a multisignature address must require at least one key to redeem");
     }
     if ((int)pubkeys.size() < required) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            strprintf("not enough keys supplied (got %u keys, "
                                      "but need at least %d to redeem)",
                                      pubkeys.size(), required));
     }
     if (pubkeys.size() > 16) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "Number of keys involved in the multisignature "
                            "address creation > 16\nReduce the number");
     }
 
     script_out = GetScriptForMultisig(required, pubkeys);
 
     if (script_out.size() > MAX_SCRIPT_ELEMENT_SIZE) {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             (strprintf("redeemScript exceeds size limit: %d > %d",
                        script_out.size(), MAX_SCRIPT_ELEMENT_SIZE)));
     }
 
     // Check if any keys are uncompressed. If so, the type is legacy
     for (const CPubKey &pk : pubkeys) {
         if (!pk.IsCompressed()) {
             type = OutputType::LEGACY;
             break;
         }
     }
 
     // Make the address
     CTxDestination dest =
         AddAndGetDestinationForScript(keystore, script_out, type);
 
     return dest;
 }
 
 class DescribeAddressVisitor : public boost::static_visitor<UniValue> {
 public:
     explicit DescribeAddressVisitor() {}
 
     UniValue operator()(const CNoDestination &dest) const {
         return UniValue(UniValue::VOBJ);
     }
 
     UniValue operator()(const PKHash &keyID) const {
         UniValue obj(UniValue::VOBJ);
         obj.pushKV("isscript", false);
         return obj;
     }
 
     UniValue operator()(const ScriptHash &scriptID) const {
         UniValue obj(UniValue::VOBJ);
         obj.pushKV("isscript", true);
         return obj;
     }
 };
 
 UniValue DescribeAddress(const CTxDestination &dest) {
     return boost::apply_visitor(DescribeAddressVisitor(), dest);
 }
 
 RPCErrorCode RPCErrorFromTransactionError(TransactionError terr) {
     switch (terr) {
         case TransactionError::MEMPOOL_REJECTED:
             return RPC_TRANSACTION_REJECTED;
         case TransactionError::ALREADY_IN_CHAIN:
             return RPC_TRANSACTION_ALREADY_IN_CHAIN;
         case TransactionError::P2P_DISABLED:
             return RPC_CLIENT_P2P_DISABLED;
         case TransactionError::INVALID_PSBT:
         case TransactionError::PSBT_MISMATCH:
             return RPC_INVALID_PARAMETER;
         case TransactionError::SIGHASH_MISMATCH:
             return RPC_DESERIALIZATION_ERROR;
         default:
             break;
     }
     return RPC_TRANSACTION_ERROR;
 }
 
 UniValue JSONRPCTransactionError(TransactionError terr,
                                  const std::string &err_string) {
     if (err_string.length() > 0) {
         return JSONRPCError(RPCErrorFromTransactionError(terr), err_string);
     } else {
         return JSONRPCError(RPCErrorFromTransactionError(terr),
                             TransactionErrorString(terr).original);
     }
 }
 
 /**
  * A pair of strings that can be aligned (through padding) with other Sections
  * later on
  */
 struct Section {
     Section(const std::string &left, const std::string &right)
         : m_left{left}, m_right{right} {}
     std::string m_left;
     const std::string m_right;
 };
 
 /**
  * Keeps track of RPCArgs by transforming them into sections for the purpose
  * of serializing everything to a single string
  */
 struct Sections {
     std::vector<Section> m_sections;
     size_t m_max_pad{0};
 
     void PushSection(const Section &s) {
         m_max_pad = std::max(m_max_pad, s.m_left.size());
         m_sections.push_back(s);
     }
 
     /**
      * Recursive helper to translate an RPCArg into sections
      */
     void Push(const RPCArg &arg, const size_t current_indent = 5,
               const OuterType outer_type = OuterType::NONE) {
         const auto indent = std::string(current_indent, ' ');
         const auto indent_next = std::string(current_indent + 2, ' ');
         // Dictionary keys must have a name
         const bool push_name{outer_type == OuterType::OBJ};
 
         switch (arg.m_type) {
             case RPCArg::Type::STR_HEX:
             case RPCArg::Type::STR:
             case RPCArg::Type::NUM:
             case RPCArg::Type::AMOUNT:
             case RPCArg::Type::RANGE:
             case RPCArg::Type::BOOL: {
                 // Nothing more to do for non-recursive types on first recursion
                 if (outer_type == OuterType::NONE) {
                     return;
                 }
                 auto left = indent;
                 if (arg.m_type_str.size() != 0 && push_name) {
                     left +=
                         "\"" + arg.GetName() + "\": " + arg.m_type_str.at(0);
                 } else {
                     left += push_name ? arg.ToStringObj(/* oneline */ false)
                                       : arg.ToString(/* oneline */ false);
                 }
                 left += ",";
                 PushSection({left, arg.ToDescriptionString()});
                 break;
             }
             case RPCArg::Type::OBJ:
             case RPCArg::Type::OBJ_USER_KEYS: {
                 const auto right = outer_type == OuterType::NONE
                                        ? ""
                                        : arg.ToDescriptionString();
                 PushSection(
                     {indent + (push_name ? "\"" + arg.GetName() + "\": " : "") +
                          "{",
                      right});
                 for (const auto &arg_inner : arg.m_inner) {
                     Push(arg_inner, current_indent + 2, OuterType::OBJ);
                 }
                 if (arg.m_type != RPCArg::Type::OBJ) {
                     PushSection({indent_next + "...", ""});
                 }
                 PushSection(
                     {indent + "}" + (outer_type != OuterType::NONE ? "," : ""),
                      ""});
                 break;
             }
             case RPCArg::Type::ARR: {
                 auto left = indent;
                 left += push_name ? "\"" + arg.GetName() + "\": " : "";
                 left += "[";
                 const auto right = outer_type == OuterType::NONE
                                        ? ""
                                        : arg.ToDescriptionString();
                 PushSection({left, right});
                 for (const auto &arg_inner : arg.m_inner) {
                     Push(arg_inner, current_indent + 2, OuterType::ARR);
                 }
                 PushSection({indent_next + "...", ""});
                 PushSection(
                     {indent + "]" + (outer_type != OuterType::NONE ? "," : ""),
                      ""});
                 break;
             }
 
                 // no default case, so the compiler can warn about missing cases
         }
     }
 
     /**
      * Concatenate all sections with proper padding
      */
     std::string ToString() const {
         std::string ret;
         const size_t pad = m_max_pad + 4;
         for (const auto &s : m_sections) {
             if (s.m_right.empty()) {
                 ret += s.m_left;
                 ret += "\n";
                 continue;
             }
 
             std::string left = s.m_left;
             left.resize(pad, ' ');
             ret += left;
 
             // Properly pad after newlines
             std::string right;
             size_t begin = 0;
             size_t new_line_pos = s.m_right.find_first_of('\n');
             while (true) {
                 right += s.m_right.substr(begin, new_line_pos - begin);
                 if (new_line_pos == std::string::npos) {
                     // No new line
                     break;
                 }
                 right += "\n" + std::string(pad, ' ');
                 begin = s.m_right.find_first_not_of(' ', new_line_pos + 1);
                 if (begin == std::string::npos) {
                     break; // Empty line
                 }
                 new_line_pos = s.m_right.find_first_of('\n', begin + 1);
             }
             ret += right;
             ret += "\n";
         }
         return ret;
     }
 };
 
 RPCHelpMan::RPCHelpMan(std::string name_, std::string description,
                        std::vector<RPCArg> args, RPCResults results,
                        RPCExamples examples)
     : m_name{std::move(name_)}, m_description{std::move(description)},
       m_args{std::move(args)}, m_results{std::move(results)},
       m_examples{std::move(examples)} {
     std::set<std::string> named_args;
     for (const auto &arg : m_args) {
         std::vector<std::string> names;
         boost::split(names, arg.m_names, boost::is_any_of("|"));
         // Should have unique named arguments
         for (const std::string &name : names) {
             CHECK_NONFATAL(named_args.insert(name).second);
         }
     }
 }
 
 std::string RPCResults::ToDescriptionString() const {
     std::string result;
     for (const auto &r : m_results) {
         if (r.m_cond.empty()) {
             result += "\nResult:\n";
         } else {
             result += "\nResult (" + r.m_cond + "):\n";
         }
         Sections sections;
         r.ToSections(sections);
         result += sections.ToString();
     }
     return result;
 }
 
 std::string RPCExamples::ToDescriptionString() const {
     return m_examples.empty() ? m_examples : "\nExamples:\n" + m_examples;
 }
 
 bool RPCHelpMan::IsValidNumArgs(size_t num_args) const {
     size_t num_required_args = 0;
     for (size_t n = m_args.size(); n > 0; --n) {
         if (!m_args.at(n - 1).IsOptional()) {
             num_required_args = n;
             break;
         }
     }
     return num_required_args <= num_args && num_args <= m_args.size();
 }
 std::string RPCHelpMan::ToString() const {
     std::string ret;
 
     // Oneline summary
     ret += m_name;
     bool was_optional{false};
     for (const auto &arg : m_args) {
         const bool optional = arg.IsOptional();
         ret += " ";
         if (optional) {
             if (!was_optional) {
                 ret += "( ";
             }
             was_optional = true;
         } else {
             if (was_optional) {
                 ret += ") ";
             }
             was_optional = false;
         }
         ret += arg.ToString(/* oneline */ true);
     }
     if (was_optional) {
         ret += " )";
     }
     ret += "\n\n";
 
     // Description
     ret += m_description;
 
     // Arguments
     Sections sections;
     for (size_t i{0}; i < m_args.size(); ++i) {
         const auto &arg = m_args.at(i);
 
         if (i == 0) {
             ret += "\nArguments:\n";
         }
 
         // Push named argument name and description
         sections.m_sections.emplace_back(::ToString(i + 1) + ". " +
                                              arg.GetFirstName(),
                                          arg.ToDescriptionString());
         sections.m_max_pad = std::max(sections.m_max_pad,
                                       sections.m_sections.back().m_left.size());
 
         // Recursively push nested args
         sections.Push(arg);
     }
     ret += sections.ToString();
 
     // Result
     ret += m_results.ToDescriptionString();
 
     // Examples
     ret += m_examples.ToDescriptionString();
 
     return ret;
 }
 
 std::string RPCArg::GetFirstName() const {
     return m_names.substr(0, m_names.find("|"));
 }
 
 std::string RPCArg::GetName() const {
     CHECK_NONFATAL(std::string::npos == m_names.find("|"));
     return m_names;
 }
 
 bool RPCArg::IsOptional() const {
     if (m_fallback.which() == 1) {
         return true;
     } else {
         return RPCArg::Optional::NO != boost::get<RPCArg::Optional>(m_fallback);
     }
 }
 
 std::string RPCArg::ToDescriptionString() const {
     std::string ret;
     ret += "(";
     if (m_type_str.size() != 0) {
         ret += m_type_str.at(1);
     } else {
         switch (m_type) {
             case Type::STR_HEX:
             case Type::STR: {
                 ret += "string";
                 break;
             }
             case Type::NUM: {
                 ret += "numeric";
                 break;
             }
             case Type::AMOUNT: {
                 ret += "numeric or string";
                 break;
             }
             case Type::RANGE: {
                 ret += "numeric or array";
                 break;
             }
             case Type::BOOL: {
                 ret += "boolean";
                 break;
             }
             case Type::OBJ:
             case Type::OBJ_USER_KEYS: {
                 ret += "json object";
                 break;
             }
             case Type::ARR: {
                 ret += "json array";
                 break;
             }
 
                 // no default case, so the compiler can warn about missing cases
         }
     }
     if (m_fallback.which() == 1) {
         ret += ", optional, default=" + boost::get<std::string>(m_fallback);
     } else {
         switch (boost::get<RPCArg::Optional>(m_fallback)) {
             case RPCArg::Optional::OMITTED: {
                 // nothing to do. Element is treated as if not present and has
                 // no default value
                 break;
             }
             case RPCArg::Optional::OMITTED_NAMED_ARG: {
                 ret += ", optional"; // Default value is "null"
                 break;
             }
             case RPCArg::Optional::NO: {
                 ret += ", required";
                 break;
             }
 
                 // no default case, so the compiler can warn about missing cases
         }
     }
     ret += ")";
     ret += m_description.empty() ? "" : " " + m_description;
     return ret;
 }
 
 void RPCResult::ToSections(Sections &sections, const OuterType outer_type,
                            const int current_indent) const {
     // Indentation
     const std::string indent(current_indent, ' ');
     const std::string indent_next(current_indent + 2, ' ');
 
     // Elements in a JSON structure (dictionary or array) are separated by a
     // comma
     const std::string maybe_separator{outer_type != OuterType::NONE ? "," : ""};
 
     // The key name if recursed into an dictionary
     const std::string maybe_key{
         outer_type == OuterType::OBJ ? "\"" + this->m_key_name + "\" : " : ""};
 
     // Format description with type
     const auto Description = [&](const std::string &type) {
         return "(" + type + (this->m_optional ? ", optional" : "") + ")" +
                (this->m_description.empty() ? "" : " " + this->m_description);
     };
 
     switch (m_type) {
         case Type::ELISION: {
             // If the inner result is empty, use three dots for elision
             sections.PushSection(
                 {indent + "..." + maybe_separator, m_description});
             return;
         }
         case Type::NONE: {
             sections.PushSection(
                 {indent + "null" + maybe_separator, Description("json null")});
             return;
         }
         case Type::STR: {
             sections.PushSection(
                 {indent + maybe_key + "\"str\"" + maybe_separator,
                  Description("string")});
             return;
         }
         case Type::STR_AMOUNT: {
             sections.PushSection({indent + maybe_key + "n" + maybe_separator,
                                   Description("numeric")});
             return;
         }
         case Type::STR_HEX: {
             sections.PushSection(
                 {indent + maybe_key + "\"hex\"" + maybe_separator,
                  Description("string")});
             return;
         }
         case Type::NUM: {
             sections.PushSection({indent + maybe_key + "n" + maybe_separator,
                                   Description("numeric")});
             return;
         }
         case Type::NUM_TIME: {
             sections.PushSection({indent + maybe_key + "xxx" + maybe_separator,
                                   Description("numeric")});
             return;
         }
         case Type::BOOL: {
             sections.PushSection(
                 {indent + maybe_key + "true|false" + maybe_separator,
                  Description("boolean")});
             return;
         }
         case Type::ARR_FIXED:
         case Type::ARR: {
             sections.PushSection(
                 {indent + maybe_key + "[", Description("json array")});
             for (const auto &i : m_inner) {
                 i.ToSections(sections, OuterType::ARR, current_indent + 2);
             }
             CHECK_NONFATAL(!m_inner.empty());
             if (m_type == Type::ARR && m_inner.back().m_type != Type::ELISION) {
                 sections.PushSection({indent_next + "...", ""});
             } else {
                 // Remove final comma, which would be invalid JSON
                 sections.m_sections.back().m_left.pop_back();
             }
             sections.PushSection({indent + "]" + maybe_separator, ""});
             return;
         }
         case Type::OBJ_DYN:
         case Type::OBJ: {
             sections.PushSection(
                 {indent + maybe_key + "{", Description("json object")});
             for (const auto &i : m_inner) {
                 i.ToSections(sections, OuterType::OBJ, current_indent + 2);
             }
             CHECK_NONFATAL(!m_inner.empty());
             if (m_type == Type::OBJ_DYN &&
                 m_inner.back().m_type != Type::ELISION) {
                 // If the dictionary keys are dynamic, use three dots for
                 // continuation
                 sections.PushSection({indent_next + "...", ""});
             } else {
                 // Remove final comma, which would be invalid JSON
                 sections.m_sections.back().m_left.pop_back();
             }
             sections.PushSection({indent + "}" + maybe_separator, ""});
             return;
         }
 
             // no default case, so the compiler can warn about missing cases
     }
 
     CHECK_NONFATAL(false);
 }
 
 std::string RPCArg::ToStringObj(const bool oneline) const {
     std::string res;
     res += "\"";
     res += GetFirstName();
     if (oneline) {
         res += "\":";
     } else {
         res += "\": ";
     }
     switch (m_type) {
         case Type::STR:
             return res + "\"str\"";
         case Type::STR_HEX:
             return res + "\"hex\"";
         case Type::NUM:
             return res + "n";
         case Type::RANGE:
             return res + "n or [n,n]";
         case Type::AMOUNT:
             return res + "amount";
         case Type::BOOL:
             return res + "bool";
         case Type::ARR:
             res += "[";
             for (const auto &i : m_inner) {
                 res += i.ToString(oneline) + ",";
             }
             return res + "...]";
         case Type::OBJ:
         case Type::OBJ_USER_KEYS:
             // Currently unused, so avoid writing dead code
             CHECK_NONFATAL(false);
 
             // no default case, so the compiler can warn about missing cases
     }
     CHECK_NONFATAL(false);
 }
 
 std::string RPCArg::ToString(const bool oneline) const {
     if (oneline && !m_oneline_description.empty()) {
         return m_oneline_description;
     }
 
     switch (m_type) {
         case Type::STR_HEX:
         case Type::STR: {
             return "\"" + GetFirstName() + "\"";
         }
         case Type::NUM:
         case Type::RANGE:
         case Type::AMOUNT:
         case Type::BOOL: {
             return GetFirstName();
         }
         case Type::OBJ:
         case Type::OBJ_USER_KEYS: {
             const std::string res = Join(m_inner, ",", [&](const RPCArg &i) {
                 return i.ToStringObj(oneline);
             });
             if (m_type == Type::OBJ) {
                 return "{" + res + "}";
             } else {
                 return "{" + res + ",...}";
             }
         }
         case Type::ARR: {
             std::string res;
             for (const auto &i : m_inner) {
                 res += i.ToString(oneline) + ",";
             }
             return "[" + res + "...]";
         }
 
             // no default case, so the compiler can warn about missing cases
     }
     CHECK_NONFATAL(false);
 }
 
 static std::pair<int64_t, int64_t> ParseRange(const UniValue &value) {
     if (value.isNum()) {
         return {0, value.get_int64()};
     }
     if (value.isArray() && value.size() == 2 && value[0].isNum() &&
         value[1].isNum()) {
         int64_t low = value[0].get_int64();
         int64_t high = value[1].get_int64();
         if (low > high) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 "Range specified as [begin,end] must not have begin after end");
         }
         return {low, high};
     }
     throw JSONRPCError(RPC_INVALID_PARAMETER,
                        "Range must be specified as end or as [begin,end]");
 }
 
 std::pair<int64_t, int64_t> ParseDescriptorRange(const UniValue &value) {
     int64_t low, high;
     std::tie(low, high) = ParseRange(value);
     if (low < 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
                            "Range should be greater or equal than 0");
     }
     if ((high >> 31) != 0) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "End of range is too high");
     }
     if (high >= low + 1000000) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Range is too large");
     }
     return {low, high};
 }
 
 std::vector<CScript>
 EvalDescriptorStringOrObject(const UniValue &scanobject,
                              FlatSigningProvider &provider) {
     std::string desc_str;
     std::pair<int64_t, int64_t> range = {0, 1000};
     if (scanobject.isStr()) {
         desc_str = scanobject.get_str();
     } else if (scanobject.isObject()) {
         UniValue desc_uni = find_value(scanobject, "desc");
         if (desc_uni.isNull()) {
             throw JSONRPCError(
                 RPC_INVALID_PARAMETER,
                 "Descriptor needs to be provided in scan object");
         }
         desc_str = desc_uni.get_str();
         UniValue range_uni = find_value(scanobject, "range");
         if (!range_uni.isNull()) {
             range = ParseDescriptorRange(range_uni);
         }
     } else {
         throw JSONRPCError(
             RPC_INVALID_PARAMETER,
             "Scan object needs to be either a string or an object");
     }
 
     std::string error;
     auto desc = Parse(desc_str, provider, error);
     if (!desc) {
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, error);
     }
     if (!desc->IsRange()) {
         range.first = 0;
         range.second = 0;
     }
     std::vector<CScript> ret;
     for (int i = range.first; i <= range.second; ++i) {
         std::vector<CScript> scripts;
         if (!desc->Expand(i, provider, scripts, provider)) {
             throw JSONRPCError(
                 RPC_INVALID_ADDRESS_OR_KEY,
                 strprintf("Cannot derive script without private keys: '%s'",
                           desc_str));
         }
         std::move(scripts.begin(), scripts.end(), std::back_inserter(ret));
     }
     return ret;
 }
 
 UniValue GetServicesNames(ServiceFlags services) {
     UniValue servicesNames(UniValue::VARR);
 
     for (const auto &flag : serviceFlagsToStr(services)) {
         servicesNames.push_back(flag);
     }
 
     return servicesNames;
 }
diff --git a/src/rpc/util.h b/src/rpc/util.h
index a35f09b0d..e3e3ed271 100644
--- a/src/rpc/util.h
+++ b/src/rpc/util.h
@@ -1,355 +1,359 @@
 // Copyright (c) 2017-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_RPC_UTIL_H
 #define BITCOIN_RPC_UTIL_H
 
+#include <node/coinstats.h>
 #include <node/transaction.h>
 #include <outputtype.h>
 #include <protocol.h>
 #include <rpc/protocol.h>
 #include <rpc/request.h>
 #include <script/script.h>
 #include <script/sign.h>
 #include <script/standard.h> // For CTxDestination
 #include <univalue.h>
 #include <util/check.h>
 
 #include <boost/variant.hpp>
 
 #include <string>
 #include <vector>
 
 class CChainParams;
 class FillableSigningProvider;
 class CPubKey;
 class CScript;
 struct Sections;
 
 /**
  * String used to describe UNIX epoch time in documentation, factored out to a
  * constant for consistency.
  */
 extern const std::string UNIX_EPOCH_TIME;
 
 /**
  * Example CashAddr address used in multiple RPCExamples.
  */
 extern const std::string EXAMPLE_ADDRESS;
 
 /**
  * Wrapper for UniValue::VType, which includes typeAny: used to denote don't
  * care type.
  */
 struct UniValueType {
     UniValueType(UniValue::VType _type) : typeAny(false), type(_type) {}
     UniValueType() : typeAny(true) {}
     bool typeAny;
     UniValue::VType type;
 };
 
 /**
  * Type-check arguments; throws JSONRPCError if wrong type given. Does not check
  * that the right number of arguments are passed, just that any passed are the
  * correct type.
  */
 void RPCTypeCheck(const UniValue &params,
                   const std::list<UniValueType> &typesExpected,
                   bool fAllowNull = false);
 
 /**
  * Type-check one argument; throws JSONRPCError if wrong type given.
  */
 void RPCTypeCheckArgument(const UniValue &value,
                           const UniValueType &typeExpected);
 
 /**
  * Check for expected keys/value types in an Object.
  */
 void RPCTypeCheckObj(const UniValue &o,
                      const std::map<std::string, UniValueType> &typesExpected,
                      bool fAllowNull = false, bool fStrict = false);
 
 /**
  * Utilities: convert hex-encoded values (throws error if not hex).
  */
 extern uint256 ParseHashV(const UniValue &v, std::string strName);
 extern uint256 ParseHashO(const UniValue &o, std::string strKey);
 extern std::vector<uint8_t> ParseHexV(const UniValue &v, std::string strName);
 extern std::vector<uint8_t> ParseHexO(const UniValue &o, std::string strKey);
 
+CoinStatsHashType ParseHashType(const UniValue &param,
+                                const CoinStatsHashType default_type);
+
 extern Amount AmountFromValue(const UniValue &value);
 extern std::string HelpExampleCli(const std::string &methodname,
                                   const std::string &args);
 extern std::string HelpExampleRpc(const std::string &methodname,
                                   const std::string &args);
 
 CPubKey HexToPubKey(const std::string &hex_in);
 CPubKey AddrToPubKey(const CChainParams &chainparams,
                      const FillableSigningProvider &keystore,
                      const std::string &addr_in);
 CTxDestination AddAndGetMultisigDestination(const int required,
                                             const std::vector<CPubKey> &pubkeys,
                                             OutputType type,
                                             FillableSigningProvider &keystore,
                                             CScript &script_out);
 
 UniValue DescribeAddress(const CTxDestination &dest);
 
 RPCErrorCode RPCErrorFromTransactionError(TransactionError terr);
 UniValue JSONRPCTransactionError(TransactionError terr,
                                  const std::string &err_string = "");
 
 //! Parse a JSON range specified as int64, or [int64, int64]
 std::pair<int64_t, int64_t> ParseDescriptorRange(const UniValue &value);
 
 /**
  * Evaluate a descriptor given as a string, or as a {"desc":...,"range":...}
  * object, with default range of 1000.
  */
 std::vector<CScript>
 EvalDescriptorStringOrObject(const UniValue &scanobject,
                              FlatSigningProvider &provider);
 
 /**
  * Returns, given services flags, a list of humanly readable (known)
  * network services.
  */
 UniValue GetServicesNames(ServiceFlags services);
 
 /**
  * Serializing JSON objects depends on the outer type. Only arrays and
  * dictionaries can be nested in json. The top-level outer type is "NONE".
  */
 enum class OuterType {
     ARR,
     OBJ,
     NONE, // Only set on first recursion
 };
 
 struct RPCArg {
     enum class Type {
         OBJ,
         ARR,
         STR,
         NUM,
         BOOL,
         //! Special type where the user must set the keys e.g. to define
         //! multiple addresses; as opposed to e.g. an options object where the
         //! keys are predefined
         OBJ_USER_KEYS,
         //! Special type representing a floating point amount (can be either NUM
         //! or STR)
         AMOUNT,
         //! Special type that is a STR with only hex chars
         STR_HEX,
         //! Special type that is a NUM or [NUM,NUM]
         RANGE,
     };
 
     enum class Optional {
         /** Required arg */
         NO,
         /**
          * Optional arg that is a named argument and has a default value of
          * `null`. When possible, the default value should be specified.
          */
         OMITTED_NAMED_ARG,
         /**
          * Optional argument with default value omitted because they are
          * implicitly clear. That is, elements in an array or object may not
          * exist by default.
          * When possible, the default value should be specified.
          */
         OMITTED,
     };
     using Fallback =
         boost::variant<Optional,
                        /* default value for optional args */ std::string>;
 
     //! The name of the arg (can be empty for inner args, can contain multiple
     //! aliases separated by | for named request arguments)
     const std::string m_names;
     const Type m_type;
     //! Only used for arrays or dicts
     const std::vector<RPCArg> m_inner;
     const Fallback m_fallback;
     const std::string m_description;
     //! Should be empty unless it is supposed to override the auto-generated
     //! summary line
     const std::string m_oneline_description;
 
     //! Should be empty unless it is supposed to override the
     //! auto-generated type strings. Vector length is either 0
     //! or 2, m_type_str.at(0) will override the type of the
     //! value in a key-value pair, m_type_str.at(1) will
     //! override the type in the argument description.
     const std::vector<std::string> m_type_str;
 
     RPCArg(const std::string name, const Type type, const Fallback fallback,
            const std::string description,
            const std::string oneline_description = "",
            const std::vector<std::string> type_str = {})
         : m_names{std::move(name)}, m_type{std::move(type)},
           m_fallback{std::move(fallback)}, m_description{std::move(
                                                description)},
           m_oneline_description{std::move(oneline_description)},
           m_type_str{std::move(type_str)} {
         CHECK_NONFATAL(type != Type::ARR && type != Type::OBJ);
     }
 
     RPCArg(const std::string name, const Type type, const Fallback fallback,
            const std::string description, const std::vector<RPCArg> inner,
            const std::string oneline_description = "",
            const std::vector<std::string> type_str = {})
         : m_names{std::move(name)}, m_type{std::move(type)}, m_inner{std::move(
                                                                  inner)},
           m_fallback{std::move(fallback)}, m_description{std::move(
                                                description)},
           m_oneline_description{std::move(oneline_description)},
           m_type_str{std::move(type_str)} {
         CHECK_NONFATAL(type == Type::ARR || type == Type::OBJ);
     }
 
     bool IsOptional() const;
 
     /** Return the first of all aliases */
     std::string GetFirstName() const;
 
     /** Return the name, throws when there are aliases */
     std::string GetName() const;
 
     /**
      * Return the type string of the argument.
      * Set oneline to allow it to be overridden by a custom oneline type string
      * (m_oneline_description).
      */
     std::string ToString(bool oneline) const;
     /**
      * Return the type string of the argument when it is in an object (dict).
      * Set oneline to get the oneline representation (less whitespace)
      */
     std::string ToStringObj(bool oneline) const;
     /**
      * Return the description string, including the argument type and whether
      * the argument is required.
      */
     std::string ToDescriptionString() const;
 };
 
 struct RPCResult {
     enum class Type {
         OBJ,
         ARR,
         STR,
         NUM,
         BOOL,
         NONE,
         STR_AMOUNT, //!< Special string to represent a floating point amount
         STR_HEX,    //!< Special string with only hex chars
         OBJ_DYN,    //!< Special dictionary with keys that are not literals
         ARR_FIXED,  //!< Special array that has a fixed number of entries
         NUM_TIME,   //!< Special numeric to denote unix epoch time
         ELISION,    //!< Special type to denote elision (...)
     };
 
     const Type m_type;
     const std::string m_key_name;         //!< Only used for dicts
     const std::vector<RPCResult> m_inner; //!< Only used for arrays or dicts
     const bool m_optional;
     const std::string m_description;
     const std::string m_cond;
 
     RPCResult(const std::string cond, const Type type,
               const std::string key_name, const bool optional,
               const std::string description,
               const std::vector<RPCResult> inner = {})
         : m_type{std::move(type)}, m_key_name{std::move(key_name)},
           m_inner{std::move(inner)}, m_optional{optional},
           m_description{std::move(description)}, m_cond{std::move(cond)} {
         CHECK_NONFATAL(!m_cond.empty());
         const bool inner_needed{type == Type::ARR || type == Type::ARR_FIXED ||
                                 type == Type::OBJ || type == Type::OBJ_DYN};
         CHECK_NONFATAL(inner_needed != inner.empty());
     }
 
     RPCResult(const std::string cond, const Type type,
               const std::string key_name, const std::string description,
               const std::vector<RPCResult> inner = {})
         : RPCResult{cond, type, key_name, false, description, inner} {}
 
     RPCResult(const Type type, const std::string key_name, const bool optional,
               const std::string description,
               const std::vector<RPCResult> inner = {})
         : m_type{std::move(type)}, m_key_name{std::move(key_name)},
           m_inner{std::move(inner)}, m_optional{optional},
           m_description{std::move(description)}, m_cond{} {
         const bool inner_needed{type == Type::ARR || type == Type::ARR_FIXED ||
                                 type == Type::OBJ || type == Type::OBJ_DYN};
         CHECK_NONFATAL(inner_needed != inner.empty());
     }
 
     RPCResult(const Type type, const std::string key_name,
               const std::string description,
               const std::vector<RPCResult> inner = {})
         : RPCResult{type, key_name, false, description, inner} {}
 
     /** Append the sections of the result. */
     void ToSections(Sections &sections, OuterType outer_type = OuterType::NONE,
                     const int current_indent = 0) const;
     /** Return the type string of the result when it is in an object (dict). */
     std::string ToStringObj() const;
     /** Return the description string, including the result type. */
     std::string ToDescriptionString() const;
 };
 
 struct RPCResults {
     const std::vector<RPCResult> m_results;
 
     RPCResults(RPCResult result) : m_results{{result}} {}
 
     RPCResults(std::initializer_list<RPCResult> results) : m_results{results} {}
 
     /**
      * Return the description string.
      */
     std::string ToDescriptionString() const;
 };
 
 struct RPCExamples {
     const std::string m_examples;
     explicit RPCExamples(std::string examples)
         : m_examples(std::move(examples)) {}
     RPCExamples() : m_examples(std::move("")) {}
     std::string ToDescriptionString() const;
 };
 
 class RPCHelpMan {
 public:
     RPCHelpMan(std::string name, std::string description,
                std::vector<RPCArg> args, RPCResults results,
                RPCExamples examples);
 
     std::string ToString() const;
     /** If the supplied number of args is neither too small nor too high */
     bool IsValidNumArgs(size_t num_args) const;
     /**
      * Check if the given request is valid according to this command or if
      * the user is asking for help information, and throw help when appropriate.
      */
     inline void Check(const JSONRPCRequest &request) const {
         if (request.fHelp || !IsValidNumArgs(request.params.size())) {
             throw std::runtime_error(ToString());
         }
     }
 
 private:
     const std::string m_name;
     const std::string m_description;
     const std::vector<RPCArg> m_args;
     const RPCResults m_results;
     const RPCExamples m_examples;
 };
 
 #endif // BITCOIN_RPC_UTIL_H
diff --git a/src/test/fuzz/coins_view.cpp b/src/test/fuzz/coins_view.cpp
index d91449de6..71ce97c5a 100644
--- a/src/test/fuzz/coins_view.cpp
+++ b/src/test/fuzz/coins_view.cpp
@@ -1,314 +1,315 @@
 // Copyright (c) 2020 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <amount.h>
 #include <chainparams.h>
 #include <chainparamsbase.h>
 #include <coins.h>
 #include <consensus/tx_verify.h>
 #include <consensus/validation.h>
 #include <key.h>
 #include <node/coinstats.h>
 #include <policy/policy.h>
 #include <primitives/blockhash.h>
 #include <primitives/transaction.h>
 #include <pubkey.h>
 #include <validation.h>
 
 #include <test/fuzz/FuzzedDataProvider.h>
 #include <test/fuzz/fuzz.h>
 #include <test/fuzz/util.h>
 
 #include <cstdint>
 #include <limits>
 #include <optional>
 #include <string>
 #include <vector>
 
 namespace {
 const Coin EMPTY_COIN{};
 
 bool operator==(const Coin &a, const Coin &b) {
     if (a.IsSpent() && b.IsSpent()) {
         return true;
     }
     return a.IsCoinBase() == b.IsCoinBase() && a.GetHeight() == b.GetHeight() &&
            a.GetTxOut() == b.GetTxOut();
 }
 } // namespace
 
 void initialize() {
     static const ECCVerifyHandle ecc_verify_handle;
     ECC_Start();
     SelectParams(CBaseChainParams::REGTEST);
 }
 
 void test_one_input(const std::vector<uint8_t> &buffer) {
     FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
     CCoinsView backend_coins_view;
     CCoinsViewCache coins_view_cache{&backend_coins_view};
     COutPoint random_out_point;
     Coin random_coin;
     CMutableTransaction random_mutable_transaction;
     while (fuzzed_data_provider.ConsumeBool()) {
         switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 9)) {
             case 0: {
                 if (random_coin.IsSpent()) {
                     break;
                 }
                 Coin coin = random_coin;
                 bool expected_code_path = false;
                 const bool possible_overwrite =
                     fuzzed_data_provider.ConsumeBool();
                 try {
                     coins_view_cache.AddCoin(random_out_point, std::move(coin),
                                              possible_overwrite);
                     expected_code_path = true;
                 } catch (const std::logic_error &e) {
                     if (e.what() ==
                         std::string{"Attempted to overwrite an unspent coin "
                                     "(when possible_overwrite is false)"}) {
                         assert(!possible_overwrite);
                         expected_code_path = true;
                     }
                 }
                 assert(expected_code_path);
                 break;
             }
             case 1: {
                 (void)coins_view_cache.Flush();
                 break;
             }
             case 2: {
                 coins_view_cache.SetBestBlock(
                     BlockHash(ConsumeUInt256(fuzzed_data_provider)));
                 break;
             }
             case 3: {
                 Coin move_to;
                 (void)coins_view_cache.SpendCoin(
                     random_out_point,
                     fuzzed_data_provider.ConsumeBool() ? &move_to : nullptr);
                 break;
             }
             case 4: {
                 coins_view_cache.Uncache(random_out_point);
                 break;
             }
             case 5: {
                 if (fuzzed_data_provider.ConsumeBool()) {
                     backend_coins_view = CCoinsView{};
                 }
                 coins_view_cache.SetBackend(backend_coins_view);
                 break;
             }
             case 6: {
                 const std::optional<COutPoint> opt_out_point =
                     ConsumeDeserializable<COutPoint>(fuzzed_data_provider);
                 if (!opt_out_point) {
                     break;
                 }
                 random_out_point = *opt_out_point;
                 break;
             }
             case 7: {
                 const std::optional<Coin> opt_coin =
                     ConsumeDeserializable<Coin>(fuzzed_data_provider);
                 if (!opt_coin) {
                     break;
                 }
                 random_coin = *opt_coin;
                 break;
             }
             case 8: {
                 const std::optional<CMutableTransaction>
                     opt_mutable_transaction =
                         ConsumeDeserializable<CMutableTransaction>(
                             fuzzed_data_provider);
                 if (!opt_mutable_transaction) {
                     break;
                 }
                 random_mutable_transaction = *opt_mutable_transaction;
                 break;
             }
             case 9: {
                 CCoinsMap coins_map;
                 while (fuzzed_data_provider.ConsumeBool()) {
                     CCoinsCacheEntry coins_cache_entry;
                     coins_cache_entry.flags =
                         fuzzed_data_provider.ConsumeIntegral<uint8_t>();
                     if (fuzzed_data_provider.ConsumeBool()) {
                         coins_cache_entry.coin = random_coin;
                     } else {
                         const std::optional<Coin> opt_coin =
                             ConsumeDeserializable<Coin>(fuzzed_data_provider);
                         if (!opt_coin) {
                             break;
                         }
                         coins_cache_entry.coin = *opt_coin;
                     }
                     coins_map.emplace(random_out_point,
                                       std::move(coins_cache_entry));
                 }
                 bool expected_code_path = false;
                 try {
                     coins_view_cache.BatchWrite(
                         coins_map,
                         fuzzed_data_provider.ConsumeBool()
                             ? BlockHash(ConsumeUInt256(fuzzed_data_provider))
                             : coins_view_cache.GetBestBlock());
                     expected_code_path = true;
                 } catch (const std::logic_error &e) {
                     if (e.what() ==
                         std::string{"FRESH flag misapplied to coin that exists "
                                     "in parent cache"}) {
                         expected_code_path = true;
                     }
                 }
                 assert(expected_code_path);
                 break;
             }
         }
     }
 
     {
         const Coin &coin_using_access_coin =
             coins_view_cache.AccessCoin(random_out_point);
         const bool exists_using_access_coin =
             !(coin_using_access_coin == EMPTY_COIN);
         const bool exists_using_have_coin =
             coins_view_cache.HaveCoin(random_out_point);
         const bool exists_using_have_coin_in_cache =
             coins_view_cache.HaveCoinInCache(random_out_point);
         Coin coin_using_get_coin;
         const bool exists_using_get_coin =
             coins_view_cache.GetCoin(random_out_point, coin_using_get_coin);
         if (exists_using_get_coin) {
             assert(coin_using_get_coin == coin_using_access_coin);
         }
         assert((exists_using_access_coin && exists_using_have_coin_in_cache &&
                 exists_using_have_coin && exists_using_get_coin) ||
                (!exists_using_access_coin && !exists_using_have_coin_in_cache &&
                 !exists_using_have_coin && !exists_using_get_coin));
         const bool exists_using_have_coin_in_backend =
             backend_coins_view.HaveCoin(random_out_point);
         if (exists_using_have_coin_in_backend) {
             assert(exists_using_have_coin);
         }
         Coin coin_using_backend_get_coin;
         if (backend_coins_view.GetCoin(random_out_point,
                                        coin_using_backend_get_coin)) {
             assert(exists_using_have_coin_in_backend);
             assert(coin_using_get_coin == coin_using_backend_get_coin);
         } else {
             assert(!exists_using_have_coin_in_backend);
         }
     }
 
     {
         bool expected_code_path = false;
         try {
             (void)coins_view_cache.Cursor();
         } catch (const std::logic_error &) {
             expected_code_path = true;
         }
         assert(expected_code_path);
         (void)coins_view_cache.DynamicMemoryUsage();
         (void)coins_view_cache.EstimateSize();
         (void)coins_view_cache.GetBestBlock();
         (void)coins_view_cache.GetCacheSize();
         (void)coins_view_cache.GetHeadBlocks();
         (void)coins_view_cache.HaveInputs(
             CTransaction{random_mutable_transaction});
     }
 
     {
         const CCoinsViewCursor *coins_view_cursor = backend_coins_view.Cursor();
         assert(coins_view_cursor == nullptr);
         (void)backend_coins_view.EstimateSize();
         (void)backend_coins_view.GetBestBlock();
         (void)backend_coins_view.GetHeadBlocks();
     }
 
     if (fuzzed_data_provider.ConsumeBool()) {
         switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 3)) {
             case 0: {
                 const CTransaction transaction{random_mutable_transaction};
                 bool is_spent = false;
                 for (const CTxOut &tx_out : transaction.vout) {
                     if (Coin{tx_out, 0, transaction.IsCoinBase()}.IsSpent()) {
                         is_spent = true;
                     }
                 }
                 if (is_spent) {
                     // Avoid:
                     // coins.cpp:69: void CCoinsViewCache::AddCoin(const
                     // COutPoint &, Coin &&, bool): Assertion `!coin.IsSpent()'
                     // failed.
                     break;
                 }
                 bool expected_code_path = false;
                 const int height = fuzzed_data_provider.ConsumeIntegral<int>();
                 const bool possible_overwrite =
                     fuzzed_data_provider.ConsumeBool();
                 try {
                     AddCoins(coins_view_cache, transaction, height,
                              possible_overwrite);
                     expected_code_path = true;
                 } catch (const std::logic_error &e) {
                     if (e.what() ==
                         std::string{"Attempted to overwrite an unspent coin "
                                     "(when possible_overwrite is false)"}) {
                         assert(!possible_overwrite);
                         expected_code_path = true;
                     }
                 }
                 assert(expected_code_path);
                 break;
             }
             case 1: {
                 uint32_t flags =
                     fuzzed_data_provider.ConsumeIntegral<uint32_t>();
                 (void)AreInputsStandard(
                     CTransaction{random_mutable_transaction}, coins_view_cache,
                     flags);
                 break;
             }
             case 2: {
                 TxValidationState state;
                 Amount tx_fee_out;
                 const CTransaction transaction{random_mutable_transaction};
                 if (ContainsSpentInput(transaction, coins_view_cache)) {
                     // Avoid:
                     // consensus/tx_verify.cpp:171: bool
                     // Consensus::CheckTxInputs(const CTransaction &,
                     // TxValidationState &, const CCoinsViewCache &, int,
                     // CAmount &): Assertion `!coin.IsSpent()' failed.
                     break;
                 }
                 try {
                     (void)Consensus::CheckTxInputs(
                         transaction, state, coins_view_cache,
                         fuzzed_data_provider.ConsumeIntegralInRange<int>(
                             0, std::numeric_limits<int>::max()),
                         tx_fee_out);
                     assert(MoneyRange(tx_fee_out));
                 } catch (const std::runtime_error &) {
                 }
                 break;
             }
             case 3: {
                 CCoinsStats stats;
                 bool expected_code_path = false;
                 try {
-                    (void)GetUTXOStats(&coins_view_cache, stats);
+                    (void)GetUTXOStats(&coins_view_cache, stats,
+                                       CoinStatsHashType::HASH_SERIALIZED);
                 } catch (const std::logic_error &) {
                     expected_code_path = true;
                 }
                 assert(expected_code_path);
                 break;
             }
         }
     }
 }