diff --git a/src/avalanche/peermanager.h b/src/avalanche/peermanager.h
--- a/src/avalanche/peermanager.h
+++ b/src/avalanche/peermanager.h
@@ -20,6 +20,7 @@
 
 #include <chrono>
 #include <cstdint>
+#include <memory>
 #include <vector>
 
 namespace avalanche {
@@ -63,18 +64,18 @@
     uint32_t index = -1;
     uint32_t node_count = 0;
 
-    Proof proof;
+    std::shared_ptr<Proof> proof;
 
     Peer(PeerId peerid_, Proof proof_)
-        : peerid(peerid_), proof(std::move(proof_)) {}
+        : peerid(peerid_), proof(std::make_shared<Proof>(std::move(proof_))) {}
 
-    const ProofId &getProofId() const { return proof.getId(); }
-    uint32_t getScore() const { return proof.getScore(); }
+    const ProofId &getProofId() const { return proof->getId(); }
+    uint32_t getScore() const { return proof->getScore(); }
 };
 
 struct proof_index {
     using result_type = ProofId;
-    result_type operator()(const Peer &p) const { return p.proof.getId(); }
+    result_type operator()(const Peer &p) const { return p.proof->getId(); }
 };
 
 struct next_request_time {};
diff --git a/src/avalanche/peermanager.cpp b/src/avalanche/peermanager.cpp
--- a/src/avalanche/peermanager.cpp
+++ b/src/avalanche/peermanager.cpp
@@ -169,7 +169,7 @@
         const CCoinsViewCache &coins = ::ChainstateActive().CoinsTip();
         for (const auto &p : peers) {
             ProofValidationState state;
-            if (!p.proof.verify(state, coins)) {
+            if (!p.proof->verify(state, coins)) {
                 invalidPeers.push_back(p.peerid);
             }
         }
@@ -260,7 +260,7 @@
                     peerid, std::chrono::steady_clock::now())));
 
     // Release UTXOs attached to this proof.
-    for (const auto &s : it->proof.getStakes()) {
+    for (const auto &s : it->proof->getStakes()) {
         bool deleted = utxos.erase(s.getStake().getUTXO()) > 0;
         assert(deleted);
     }
diff --git a/src/rpc/avalanche.cpp b/src/rpc/avalanche.cpp
--- a/src/rpc/avalanche.cpp
+++ b/src/rpc/avalanche.cpp
@@ -432,7 +432,7 @@
         UniValue obj(UniValue::VOBJ);
 
         CDataStream serproof(SER_NETWORK, PROTOCOL_VERSION);
-        serproof << peer.proof;
+        serproof << *peer.proof;
 
         obj.pushKV("peerid", uint64_t(peer.peerid));
         obj.pushKV("proof", HexStr(serproof));