diff --git a/hive_integration/nodocker/engine/clmock.nim b/hive_integration/nodocker/engine/clmock.nim
index 2d2314822..b7166603e 100644
--- a/hive_integration/nodocker/engine/clmock.nim
+++ b/hive_integration/nodocker/engine/clmock.nim
@@ -368,7 +368,7 @@ func versionedHashes(bb: BlobsBundleV1): seq[BlockHash] =
 
   for com in bb.commitments:
     var h = keccakHash(com.bytes)
-    h.data[0] = BLOB_COMMITMENT_VERSION_KZG
+    h.data[0] = VERSIONED_HASH_VERSION_KZG
     result.add BlockHash(h.data)
 
 proc broadcastNewPayload(cl: CLMocker, payload: ExecutionPayload): Result[PayloadStatusV1, string] =
diff --git a/nimbus/constants.nim b/nimbus/constants.nim
index 9cb0f9217..6d95322c4 100644
--- a/nimbus/constants.nim
+++ b/nimbus/constants.nim
@@ -76,13 +76,13 @@ const
   MAX_ACCESS_LIST_SIZE* = 1 shl 24 # 2^24
   MAX_ACCESS_LIST_STORAGE_KEYS* = 1 shl 24 # 2^24
   MAX_TX_WRAP_COMMITMENTS* = 1 shl 12 # 2^12
-  BLOB_COMMITMENT_VERSION_KZG* = 0x01.byte
+  VERSIONED_HASH_VERSION_KZG* = 0x01.byte
   FIELD_ELEMENTS_PER_BLOB* = 4096
   GAS_PER_BLOB* = (1 shl 17).uint64 # 2^17
-  TARGET_BLOB_GAS_PER_BLOCK* = (1 shl 18).uint64 # 2^18
+  TARGET_BLOB_GAS_PER_BLOCK* = 393216
   MIN_BLOB_GASPRICE* = 1'u64
-  BLOB_GASPRICE_UPDATE_FRACTION* = 2225652'u64
-  MAX_BLOB_GAS_PER_BLOCK* = (1 shl 19).uint64 # 2^19
-  MaxAllowedBlob* = MAX_BLOB_GAS_PER_BLOCK div GAS_PER_BLOB
+  BLOB_GASPRICE_UPDATE_FRACTION* = 3338477'u64
+  MAX_BLOB_GAS_PER_BLOCK* = 786432
+  MAX_ALLOWED_BLOB* = MAX_BLOB_GAS_PER_BLOCK div GAS_PER_BLOB
 
 # End
diff --git a/nimbus/core/eip4844.nim b/nimbus/core/eip4844.nim
index d89dd9fa4..ea402d8f2 100644
--- a/nimbus/core/eip4844.nim
+++ b/nimbus/core/eip4844.nim
@@ -40,7 +40,7 @@ const
 # kzgToVersionedHash implements kzg_to_versioned_hash from EIP-4844
 proc kzgToVersionedHash(kzg: kzg.KZGCommitment): VersionedHash =
   result = keccakHash(kzg)
-  result.data[0] = BLOB_COMMITMENT_VERSION_KZG
+  result.data[0] = VERSIONED_HASH_VERSION_KZG
 
 # pointEvaluation implements point_evaluation_precompile from EIP-4844
 # return value and gas consumption is handled by pointEvaluation in
@@ -66,6 +66,9 @@ proc pointEvaluation*(input: openArray[byte]): Result[void, string] =
   commitment[0..<48] = input[96..<144]
   kzgProof[0..<48]   = input[144..<192]
 
+  if kzgToVersionedHash(commitment).data != versionedHash:
+    return err("versionedHash should equal to kzgToVersionedHash(commitment)")
+
   # Verify KZG proof
   let res = kzg.verifyKzgProof(commitment, z, y, kzgProof)
   if res.isErr:
@@ -197,7 +200,7 @@ proc validateBlobTransactionWrapper*(tx: Transaction):
   # Now that all commitments have been verified, check that versionedHashes matches the commitments
   for i in 0 ..< tx.versionedHashes.len:
     # this additional check also done in tx validation
-    if tx.versionedHashes[i].data[0] != BLOB_COMMITMENT_VERSION_KZG:
+    if tx.versionedHashes[i].data[0] != VERSIONED_HASH_VERSION_KZG:
       return err("wrong kzg version in versioned hash at index " & $i)
 
     if tx.versionedHashes[i] != kzgToVersionedHash(tx.networkPayload.commitments[i]):
diff --git a/nimbus/core/validate.nim b/nimbus/core/validate.nim
index 220b98295..77a5258d8 100644
--- a/nimbus/core/validate.nim
+++ b/nimbus/core/validate.nim
@@ -287,14 +287,14 @@ proc validateTxBasic*(
       if tx.versionedHashes.len == 0:
         return err("invalid tx: there must be at least one blob")
 
-      if tx.versionedHashes.len > MaxAllowedBlob.int:
-        return err("invalid tx: versioned hashes len exceeds MaxAllowedBlob=" & $MaxAllowedBlob &
+      if tx.versionedHashes.len > MAX_ALLOWED_BLOB.int:
+        return err("invalid tx: versioned hashes len exceeds MAX_ALLOWED_BLOB=" & $MAX_ALLOWED_BLOB &
           ". get=" & $tx.versionedHashes.len)
 
       for i, bv in tx.versionedHashes:
-        if bv.data[0] != BLOB_COMMITMENT_VERSION_KZG:
+        if bv.data[0] != VERSIONED_HASH_VERSION_KZG:
           return err("invalid tx: one of blobVersionedHash has invalid version. " &
-            "get=$1, expect=$2" % [$bv.data[0].int, $BLOB_COMMITMENT_VERSION_KZG.int])
+            "get=$1, expect=$2" % [$bv.data[0].int, $VERSIONED_HASH_VERSION_KZG.int])
 
   except CatchableError as ex:
     return err(ex.msg)
diff --git a/nimbus/evm/precompiles.nim b/nimbus/evm/precompiles.nim
index 0f10ccb22..4dfe3761e 100644
--- a/nimbus/evm/precompiles.nim
+++ b/nimbus/evm/precompiles.nim
@@ -47,12 +47,7 @@ type
     # paBlsMapG1
     # paBlsMapG2
     # Cancun
-    paNoop0x0A, paNoop0x0B, paNoop0x0C,
-    paNoop0x0D, paNoop0x0E, paNoop0x0F,
-    paNoop0x10, paNoop0x11, paNoop0x12,
-    paNoop0x13,
-
-    paPointEvaluation = 0x14
+    paPointEvaluation = 0x0A
 
 proc getMaxPrecompileAddr(fork: EVMFork): PrecompileAddresses =
   if fork < FkByzantium: paIdentity
@@ -64,8 +59,7 @@ proc getMaxPrecompileAddr(fork: EVMFork): PrecompileAddresses =
   else: PrecompileAddresses.high
 
 proc validPrecompileAddr(addrByte, maxPrecompileAddr: byte): bool =
-  (addrByte in PrecompileAddresses.low.byte .. maxPrecompileAddr) and
-    (addrByte notin paNoop0x0A.byte .. paNoop0x13.byte)
+  (addrByte in PrecompileAddresses.low.byte .. maxPrecompileAddr)
 
 proc validPrecompileAddr(addrByte: byte, fork: EVMFork): bool =
   let maxPrecompileAddr = getMaxPrecompileAddr(fork)
diff --git a/nimbus/transaction.nim b/nimbus/transaction.nim
index 8c3ddb0b7..856847df7 100644
--- a/nimbus/transaction.nim
+++ b/nimbus/transaction.nim
@@ -139,11 +139,11 @@ proc validateTxEip4844(tx: Transaction) =
       (acl.storageKeys.len <= MAX_ACCESS_LIST_STORAGE_KEYS)
 
   isValid = isValid and
-    tx.versionedHashes.len <= MaxAllowedBlob.int
+    tx.versionedHashes.len <= MAX_ALLOWED_BLOB.int
 
   for bv in tx.versionedHashes:
     isValid = isValid and
-      bv.data[0] == BLOB_COMMITMENT_VERSION_KZG
+      bv.data[0] == VERSIONED_HASH_VERSION_KZG
 
   if not isValid:
     raise newException(ValidationError, "Invalid EIP-4844 transaction")