Momento is now post-quantum — v2 receipts use ML-DSA-65. Learn more →⚠️ npm delayed — recovery requested, awaiting npm support. How to use Momento meanwhile →

Verify a receipt

Check a Momento Timestamp signature locally, then optionally compare a file hash.

Open a receipt JSON or a shared verification link.

Verification happens on this device. A shared receipt stays in the URL fragment and is not sent to the API. Anyone with that link can read the hash and signed time.

A valid signature authenticates the issuer's statement. Understand what the timestamp proves.