Cenotaph

A vault that holds nothing, and everything.

I

Your keys, nowhere else.

No master password. No recovery email.

Your vault is sealed by two factors that never leave your hardware: a wallet signature and a passkey. There is no password to forget, no secret question to guess, and no server that holds a copy of your keys. The cryptography is yours — nobody else can even attempt decryption.


II

Sealed on the chain.

Encrypted ciphertext. Public ledger.

Every entry is AES-GCM encrypted on your device, then written to a smart contract on Monad Monad High-performance EVM L1. 10,000 TPS with full Ethereum tooling. Your vault lives here. . The chain stores ciphertext — opaque bytes that reveal nothing without the key derived from your wallet and passkey. Lose your laptop; your passwords are still waiting on-chain.


III

Nothing to steal.

Zero-knowledge by construction.

There is no server, no database, no admin panel. The extension talks directly to the chain. A breach of our website reveals nothing — because we hold nothing. The only attack surface is the device you already trust.

Built on Monad

How it works

  1. 1
    MetaMask Rainbow Coinbase Wallet WalletConnect Phantom Rabby

    Connect your wallet

    MetaMask, Rainbow, or any EVM wallet. A one-time signature derives half of your master key.

  2. 2

    Register a passkey

    Touch ID, Face ID, or a hardware key. The other half of your master key comes from here — hardware-bound, unphishable.

  3. 3

    Save your first password

    Encrypted on your device, written to the chain. Autofill works immediately. You're done.

Cenotaph

A vault with no secrets to steal.

Install for Chromium