# Implement the SHA-256 compression function using a quantum oracle search for target address prefix 20d45
sha256_compression_function(qc, binary_message, expression="message[0] == '1' and message[1] == '0' and message[2] == '1' and message[3] == '1'")
You are converting from privatekey to sha256 and comparing it with the #66 hash160??? How should this ever work?