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diff --git a/src/avalanche/peermanager.h b/src/avalanche/peermanager.h
--- a/src/avalanche/peermanager.h
+++ b/src/avalanche/peermanager.h
@@ -509,6 +509,7 @@
* Deterministically select a list of payout scripts based on the proof set
* and the previous block hash.
*/
+ CScript pinnedStakeWinner;
bool selectStakingRewardWinner(
const CBlockIndex *pprev,
std::vector<std::pair<ProofId, CScript>> &winners);
diff --git a/src/avalanche/peermanager.cpp b/src/avalanche/peermanager.cpp
--- a/src/avalanche/peermanager.cpp
+++ b/src/avalanche/peermanager.cpp
@@ -1000,6 +1000,11 @@
return false;
}
+ if (pinnedStakeWinner != CScript()) {
+ winners.push_back({ProofId(), pinnedStakeWinner});
+ return true;
+ }
+
// Don't select proofs that have not been known for long enough, i.e. at
// least since twice the dangling proof cleanup timeout before the last
// block time, so we're sure to not account for proofs more recent than the
diff --git a/src/rpc/avalanche.cpp b/src/rpc/avalanche.cpp
--- a/src/rpc/avalanche.cpp
+++ b/src/rpc/avalanche.cpp
@@ -1232,6 +1232,32 @@
};
}
+static RPCHelpMan pinstakingreward() {
+ return RPCHelpMan{
+ "pinstakingreward",
+ "Pin the staking reward for all future blocks\n",
+ {
+ {"payoutscript", RPCArg::Type::STR_HEX, RPCArg::Optional::NO,
+ "The payout script for the staking reward, hex encoded."},
+ },
+ RPCResult{RPCResult::Type::BOOL, "success",
+ "Whether the payout script was set or not"},
+ RPCExamples{HelpExampleRpc("pinstakingreward", "<payout script>")},
+ [&](const RPCHelpMan &self, const Config &config,
+ const JSONRPCRequest &request) -> UniValue {
+ const NodeContext &node = EnsureAnyNodeContext(request.context);
+ avalanche::Processor &avalanche = EnsureAvalanche(node);
+
+ const std::vector<uint8_t> data =
+ ParseHex(request.params[0].get_str());
+ avalanche.withPeerManager([data](avalanche::PeerManager &pm) {
+ pm.pinnedStakeWinner = CScript(data.begin(), data.end());
+ return true;
+ });
+ return true;
+ }};
+}
+
static RPCHelpMan getremoteproofs() {
return RPCHelpMan{
"getremoteproofs",
@@ -1888,6 +1914,7 @@
{ "avalanche", getavalancheproofs, },
{ "avalanche", getstakingreward, },
{ "hidden", hasstakingreward, },
+ { "avalanche", pinstakingreward, },
{ "avalanche", setstakingreward, },
{ "avalanche", getremoteproofs, },
{ "avalanche", getrawavalancheproof, },

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