arc76-bitcoincash

Deterministic ARC76 account derivation for Bitcoin Cash (CashAddr addresses).

Usage

pip install arc76-bitcoincash

from arc76.bitcoincash import get_account, get_email_account

account = get_account(password)  # slot 0
print(account.address())         # CashAddr address, e.g. "bitcoincash:q..."
print(account.wif())             # WIF-encoded private key (same encoding Bitcoin uses)

email_account = get_email_account(email, password)

Both functions return a BitcoinCashAccount(private_key, public_key) — Bitcoin Cash uses the same secp256k1 keys as Bitcoin, only the address format differs:

• private_key — the raw 32-byte secp256k1 private key (identical to the ARC76 seed).
• public_key — the 33-byte compressed secp256k1 public key.
• .address(prefix="bitcoincash") — the CashAddr (P2PKH) address.
• .wif() — the WIF-encoded private key (the same encoding arc76-bitcoin uses).

Elliptic-curve operations use coincurve (Python bindings for libsecp256k1, the same library Bitcoin Core uses). CashAddr encoding is implemented internally against the CashAddr spec rather than via a third-party dependency, since no actively-maintained CashAddr package exists on PyPI; it's covered by known-answer tests shared with the dotnet/typescript packages.

Please use a password of at least 50 characters for real accounts — the account's security is entirely the password's security.

⚠️ Same-curve chains share the literal same private key. arc76-bitcoin, arc76-bitcoincash, and arc76-ethereum derive the identical secp256k1 private key from the same password/email/slot — leaking the key on one of those chains leaks it on all of them. Use a different password (or slot) per chain if you need isolation.