bitcoin.py

import hashlib

best = 0
bhash = 2 ** 256

b1 = bytes.fromhex("0100000000000000000000000000000000000000000000000000000000000000000000003BA3EDFD7A7B12B27AC72C3E67768F617FC81BC3888A51323A9FB8AA4B1E5E4A29AB5F49FFFF001D")

nonce = 0
while bhash > 0x00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff:
    block = b1 + nonce.to_bytes(4, "big")
    hd = hashlib.sha256(hashlib.sha256(block).digest()).hexdigest()[::-1]
    h = int(hd, 16)
        
    if bhash > h:
        bhash = h
        best = nonce
        
        print(hd, nonce)
        
    nonce += 1