(Programming Q) Generating receive addresses from p2wsh multi-sig script?

I'm learning how BTC works by writing a wallet.

The simplified code I got is:

import hashlib
from embit import bech32
from binascii import b2a_base64, a2b_base64, hexlify, unhexlify

# List of sorted xpubs
sorted_xpubs = [
    '02b713cc0d0fca02323d96e6538528215ca67b128ecdac4a56a43ac45ad937e988',
    '038b00eba3c048cb9bd5e9d6d25065d2c86cfb45fe86f0c0f4093ccaf60a41234c',
    '03b7a5fcf032765bf0b35e51c4974df0bbed8d099b79e8b15d293b876371906cf9'
]

# Function to create the witness script (sorted multi-sig 2-of-3)
def create_witness_script(sorted_xpubs):
    # Convert sorted_xpubs to public keys (for simplicity using the raw sorted_xpubs here)
    pubkeys = [bytes.fromhex(xpub) for xpub in sorted_xpubs]

    # Construct the witness script: OP_2 <pubkey1> <pubkey2> <pubkey3> OP_3 OP_CHECKMULTISIG
    witness_script = b'\x52'  # OP_2
    witness_script += b''.join(pubkeys)  # Public keys
    witness_script += b'\x53'  # OP_3
    witness_script += b'\xae'  # OP_CHECKMULTISIG
    print(f"111 {hexlify(witness_script)}")
    return witness_script

# Function to hash the witness script (SHA256)
def hash_witness_script(witness_script):
    # First, compute SHA256 hash of the witness script
    sha256_hash = hashlib.sha256(witness_script).digest()

    return sha256_hash


# Function to generate the P2WSH address from the witness script
def generate_p2wsh_address(witness_script):
    # Hash the witness script
    script_hash = hash_witness_script(witness_script)

    # Encode the script hash using Bech32 (for SegWit P2WSH)
    # We use the 'bc' prefix (for Bitcoin) and version 0 (for P2WSH)
    p2wsh_address = bech32.encode("bc", 0, script_hash)

    return p2wsh_address

# Create the witness script
witness_script = create_witness_script(sorted_xpubs)

# Generate the P2WSH address
p2wsh_address = generate_p2wsh_address(witness_script)

# Print the result
print("Generated P2WSH SegWit Address:", p2wsh_address)

I got: Generated P2WSH SegWit Address: bc1qgj3jyxugxm62whrzn7r6xrf7wtejzh2yxlv2cuzumltzpel9dcsssngq8t

When I checked with wallets like Sparrow or Specter, it should be bc1q6rplrk6ykcrgwdh5shq78jhlupcpua5hed4jx4hahkljt0gwgwys8gyzp9

Could anyone point missing bits in the code?

Cheers



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