Skip to content

Instantly share code, notes, and snippets.

@dancodery

dancodery/bitcoin-address-validator.py

Last active September 23, 2021 21:56
Show Gist options
  • Save dancodery/3eb951dd74634a9fd859e16059384114 to your computer and use it in GitHub Desktop.
Save dancodery/3eb951dd74634a9fd859e16059384114 to your computer and use it in GitHub Desktop.
Download ZIP
This script validates Bitcoin addresses by calculating and comparing checksums as well as displaying the Bitcoin address type.
Raw
bitcoin-address-validator.py
#!/usr/bin/env python
"""bitcoin-address-validator.py: This script validates Bitcoin addresses by
calculating and comparing checksums as well as displaying the Bitcoin address type."""
__author__ = "Daniel Gockel"
__website__ = "https://www.10xrecovery.org/"
from base58 import b58decode
from hashlib import sha256
bitcoin_address_to_validate = "1XRecoveryXXXXXXXXXXXXXXXXXXV47Rm7"
if __name__ == "__main__":
bitcoin_address_decoded = b58decode(bitcoin_address_to_validate)
version_plus_payload = bitcoin_address_decoded[:-4]
checksum_found = bitcoin_address_decoded[-4:]
# calculate real checksum
checksum_real = sha256(sha256(version_plus_payload).digest()).digest()[:4]
address_type = "undefined"
version_prefix = version_plus_payload.hex()[0:8]
if version_prefix[0:2] == "00":
address_type = "Bitcoin Address"
elif version_prefix[0:2] == "05":
address_type = "Pay-to-Script-Hash Address"
elif version_prefix[0:2] == "6F":
address_type = "Bitcoin Testnet Address"
elif version_prefix[0:2] == "80":
address_type = "Private Key WIF"
elif version_prefix[0:4] == "0142":
address_type = "BIP-38 Encrypted Private Key"
elif version_prefix[0:8] == "0488B21E":
address_type = "BIP-32 Extended Public Key"
if checksum_real == checksum_found:
print("Address with type '%s' is a valid Bitcoin address." % address_type)
else:
print("Address with type %s is not a valid Bitcoin address." % address_type)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment