diff --git a/consensus/blake3pow/consensus.go b/consensus/blake3pow/consensus.go
index a64f524cf6..1aebb36936 100644
--- a/consensus/blake3pow/consensus.go
+++ b/consensus/blake3pow/consensus.go
@@ -350,7 +350,7 @@ func (blake3pow *Blake3pow) HasCoincidentDifficulty(header *types.Header) bool {
 	if nodeCtx > common.PRIME_CTX {
 		domCtx := nodeCtx - 1
 		domTarget := new(big.Int).Div(big2e256, header.Difficulty(domCtx))
-		if new(big.Int).SetBytes(blake3pow.SealHash(header).Bytes()).Cmp(domTarget) <= 0 {
+		if new(big.Int).SetBytes(header.Hash().Bytes()).Cmp(domTarget) <= 0 {
 			return true
 		}
 	}
@@ -379,7 +379,7 @@ func (blake3pow *Blake3pow) verifySeal(chain consensus.ChainHeaderReader, header
 	}
 	// Check that SealHash meets the difficulty target
 	target := new(big.Int).Div(big2e256, header.Difficulty())
-	if new(big.Int).SetBytes(blake3pow.SealHash(header).Bytes()).Cmp(target) > 0 {
+	if new(big.Int).SetBytes(header.Hash().Bytes()).Cmp(target) > 0 {
 		return errInvalidPoW
 	}
 	return nil
@@ -451,7 +451,6 @@ func (blake3pow *Blake3pow) SealHash(header *types.Header) (hash common.Hash) {
 		Location:    header.Location(),
 		Time:        header.Time(),
 		Extra:       header.Extra(),
-		Nonce:       header.Nonce(),
 	}
 	for i := 0; i < common.HierarchyDepth; i++ {
 		hdata.ParentHash[i] = header.ParentHash(i)
diff --git a/consensus/blake3pow/sealer.go b/consensus/blake3pow/sealer.go
index 9309f6c305..232977709b 100644
--- a/consensus/blake3pow/sealer.go
+++ b/consensus/blake3pow/sealer.go
@@ -143,7 +143,7 @@ search:
 			// Compute the PoW value of this nonce
 			header = types.CopyHeader(header)
 			header.SetNonce(types.EncodeNonce(nonce))
-			hash := blake3pow.SealHash(header).Bytes()
+			hash := header.Hash().Bytes()
 			if powBuffer.SetBytes(hash).Cmp(target) <= 0 {
 				// Correct nonce found, create a new header with it
 
diff --git a/core/knot/ropsten_knot.rlp b/core/knot/ropsten_knot.rlp
index 21a79a937f..6cda305cd2 100644
Binary files a/core/knot/ropsten_knot.rlp and b/core/knot/ropsten_knot.rlp differ