diff --git a/src/avalanche/proofbuilder.h b/src/avalanche/proofbuilder.h
--- a/src/avalanche/proofbuilder.h
+++ b/src/avalanche/proofbuilder.h
@@ -39,12 +39,6 @@
 
     Proof build();
 
-    /**
-     * Builds a randomized (and therefore invalid) Proof.
-     * Useful for tests.
-     */
-    static Proof buildRandom(uint32_t score);
-
 private:
     ProofId getProofId() const;
 };
diff --git a/src/avalanche/proofbuilder.cpp b/src/avalanche/proofbuilder.cpp
--- a/src/avalanche/proofbuilder.cpp
+++ b/src/avalanche/proofbuilder.cpp
@@ -63,11 +63,4 @@
     return ProofId(ss2.GetHash());
 }
 
-Proof ProofBuilder::buildRandom(uint32_t score) {
-    ProofBuilder pb(0, std::numeric_limits<uint32_t>::max(), CPubKey());
-    pb.addUTXO(COutPoint(TxId(GetRandHash()), 0), (int64_t(score) * COIN) / 100,
-               0, false, CKey::MakeCompressedKey());
-    return pb.build();
-}
-
 } // namespace avalanche