Fix RtBlockIdentifier parser

tests/test_json_marshalling.nim

@@ -187,3 +187,10 @@ suite "JSON-RPC Quantity":
     checkRandomObject(ExecutionPayload)
     checkRandomObject(PayloadAttributes)
     checkRandomObject(GetPayloadResponse)
+
+  test "check blockId":
+    let a = RtBlockIdentifier(kind: bidNumber, number: 77.uint64)
+    let x = JrpcConv.encode(a)
+    let c = JrpcConv.decode(x, RtBlockIdentifier)
+    check c.kind == bidNumber
+    check c.number == 77

web3/conversions.nim

@@ -150,7 +150,13 @@ template wrapValueError(body: untyped) =
     r.raiseUnexpectedValue(exc.msg)
 
 func valid(hex: string): bool =
-  for x in hex:
+  var start = 0
+  if hex.len >= 2:
+    if hex[0] == '0' and hex[1] in {'x', 'X'}:
+      start = 2
+
+  for i in start..<hex.len:
+    let x = hex[i]
     if x notin HexDigits: return false
   true
 

web3/eth_api_types.nim

@@ -271,3 +271,6 @@ proc `source=`*(c: var EthCall, a: Option[Address]) =
 
 func source*(c: EthCall): Option[Address] =
   c.`from`
+
+template `==`*(a, b: RlpEncodedBytes): bool =
+  distinctBase(a) == distinctBase(b)