utils.py 文件源码

def address_to_key_hash(s):
    """ Given a Bitcoin address decodes the version and
    RIPEMD-160 hash of the public key.

    Args:
        s (bytes): The Bitcoin address to decode

    Returns:
        (version, h160) (tuple): A tuple containing the version and
        RIPEMD-160 hash of the public key.
    """
    n = base58.b58decode_check(s)
    version = n[0]
    h160 = n[1:]
    return version, h160