Prove you were really there.
One live face check at the Valyd booth is your whole login. After that, every photo, session and note you collect is hashed, chained and signed — and anyone can check it.
One face, one pass
Liveness plus uniqueness. No passwords, no OAuth, no second account.
Signed proof moments
Each capture carries the photo's hash, the previous moment's hash, and an Ed25519 signature.
A recap that survives scrutiny
Minting needs a fresh face scan from the same person. Then it's public.