i attempt to spend a P2WSH 2of2 multisig enter in Python for studying functions.
When i test my assembled TX with testmempoolaccept i get “bad-witness-nonstandard”.
That is my perform to assemble the witness:
def get_p2wsh_witness(privs: Listing[bytes], msg: bytes) -> bytes:
sigs = [sign(priv, msg) for priv in privs]
witness = bytes.fromhex("04")
witness += bytes.fromhex("00")
for sig in sigs:
witness += len(sig).to_bytes(1, "little") + sig
musig_script = b""
op2 = bytes.fromhex("52")
op_checkmultisig = bytes.fromhex("ae")
musig_script += op2
for key in privs:
key = get_pub_from_priv(key)
musig_script += bytes.fromhex("21") # 33 bytes
musig_script += key
musig_script += op2
musig_script += op_checkmultisig
musig_script = len(musig_script).to_bytes(1, "little") + musig_script
witness += musig_script
return witness
That is how i assembled the dedication hash:
def get_commitment_hash(outpoint: bytes, scriptcode: bytes, worth: int, outputs: Listing[bytes]) -> bytes:
def dsha256(knowledge: bytes) -> bytes:
return hashlib.new("sha256", hashlib.new("sha256", knowledge).digest()).digest()
consequence = b""
consequence += (2).to_bytes(4, "little")
consequence += dsha256(outpoint) # hashPrevouts
consequence += dsha256(bytes.fromhex("ffffffff"))
consequence += outpoint
# Handed scriptcode (hex): 522103abd618be2d6e412bb31457bf416cf05138592da9ab4c9647a79577492710eacb2103bc2e2480bd8f5a66d45ceb333db45a980283a3c55df3c23eed22f30aa99e82e852ae
if len(scriptcode) > 30:
consequence += len(scriptcode).to_bytes(1, "little") + scriptcode
else:
consequence += scriptcode
consequence += worth.to_bytes(8, "little")
consequence += bytes.fromhex("ffffffff")
consequence += dsha256(b"".be part of(outputs))
consequence += bytes.fromhex("00000000")
consequence += bytes.fromhex("01000000")
return dsha256(consequence)
That is the UTXO’s origin transaction:
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
0400483045022100ec7dfded7d97f8d990d8470b0855a705c118dff718aed9f5a6c5faa24c33a03402207919d822f44bb3a36ffb0771e2e4dc99688e002e26a71fc53224eba84aa526d6014830450221009535cda9d3533a8b95ab3cbd8004b1fc4d689d5104ae0c027b4e857a6345e54b022020b8df4231a2fb0fbcbf2d7593f0fbdb63d72feea04167afcd1708fba130dd8a0147522103abd618be2d6e412bb31457bf416cf05138592da9ab4c9647a79577492710eacb2103bc2e2480bd8f5a66d45ceb333db45a980283a3c55df3c23eed22f30aa99e82e852ae
These are the (personal signet) personal keys in hex to signal with:
3e2d99b06d1e763e8a208d0f2522432596fc1ae75825e777fb6b04ecf7260848 27d7edd524be491da6f5996e830e92b5477844800155e47f672cd5527f3a0e7d
That is the ultimate assembled tx, spending to at least one OP_Return and alter:
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
Can anyone see an apparent mistake right here, assuming signal() and the given keys are right, or give a touch on how one can confirm the output myself?
