# Perpetua Cryptograph

> Perpetua Cryptograph is a hardware cryptocurrency wallet for Apple Watch. Private keys are generated and stored on the watch, secured by Apple's Secure Enclave. The watch is the signing authority — the iPhone acts as an untrusted display and network proxy. Keys never leave your wrist. No account, no email, no name, no tracking. Zero-knowledge architecture.

Cryptograph turns your Apple Watch into a hardware wallet. The watch generates and stores all private keys in its Secure Enclave. The iPhone companion app displays your portfolio and initiates transactions, but every signature must be approved on the watch. The phone never sees private spending keys or mnemonics.

Security features include Time Lock (configurable 1–7 day delays and rolling spend limits), Location Lock (geographic spend restrictions), hold-to-approve transaction signing, full on-watch transaction decoding, and a verified contract registry. Recovery is via an encrypted printed Recovery Sheet or steganographic Photo Backup — no cloud, no servers.

Supported chains: Bitcoin (BTC), Ethereum (ETH), Base (L2), Solana (SOL), and Zcash (ZEC) including shielded transactions via Orchard.

## Product

- [Homepage](https://perpetua.watch/)
- [Operation Guide](https://perpetua.watch/docs.html)

## Security

- [Technical Security Overview](https://perpetua.watch/security.html)
- [Time Lock & Anti-Coercion](https://perpetua.watch/docs.html#time-lock)
- [Location Lock](https://perpetua.watch/docs.html#location-lock)
- [Transaction Verification](https://perpetua.watch/security.html#transaction-verification)
- [Signing Authorization](https://perpetua.watch/security.html#signing-authorization)

## Privacy

- [Privacy Policy](https://perpetua.watch/privacy.html)
- [Zero-Knowledge Architecture](https://perpetua.watch/#privacy)

## Recovery

- [Recovery Sheet & Photo Backup](https://perpetua.watch/docs.html#recovery-sheet)
- [Recovery Encryption Details](https://perpetua.watch/security.html#recovery-encryption)

## Support

- [Support & Troubleshooting](https://perpetua.watch/support.html)
- [Contact: support@perpetua.watch](mailto:support@perpetua.watch)

## Legal

- [Terms of Service](https://perpetua.watch/terms.html)
- [Privacy Policy](https://perpetua.watch/privacy.html)

## Open Source

- [Open Source Philosophy & Repositories](https://perpetua.watch/opensource.html)
- [GitHub: perpetua-engineering](https://github.com/perpetua-engineering)
- [Third-Party Licenses](https://perpetua.watch/LICENSES.txt)