TRELYAN
A TRELYAN Vault Cell doesn't store your file — it seals its fingerprint on-chain, signed with a post-quantum signature that a quantum computer cannot forge. Hash anything below and see exactly what gets written.
100% in your browser — via the Web Crypto API. Nothing is uploaded, sent, or stored. Open DevTools and watch: no network call leaves this page.
That digest — and only that digest — is what a Vault Cell writes, once, forever. Change a single byte of your artifact and the fingerprint changes completely; the original inscription can never match the altered file. Proof without trust.
The threat. A large quantum computer will eventually break the elliptic-curve signatures that secure most of today's blockchains and identity systems. "Harvest now, decrypt later" means anything meant to last is already exposed.
The answer. TRELYAN signs with Falcon-1024, a lattice-based scheme NIST selected in 2022 for standardization (designated FN-DSA; FIPS 206 is still in development). Lattice signatures are believed secure against quantum attack.
And the verification isn't a promise on a website — it runs inside the Algorand protocol itself. The falcon_verify opcode checks every signature against its public key during transaction execution. If it doesn't verify, the inscription is rejected by consensus. No one — not even the Foundation — can write an inscription that doesn't hold.
The verification engine is already running on Algorand. The TRELYAN application below has had real artifacts inscribed and verified by falcon_verify — you can inspect it on any block explorer.