Verify a notarisation

Paste the anchor identifier printed on a SeyAero notarisation certificate. The statement is re-canonicalised, re-hashed and its signature re-checked against the ledger key on our servers. No evidence content and no personal data are disclosed.

HOW THIS PROOF IS CONSTRUCTED — every statement is signed with the SeyAero ledger key and countersigned by an independent RFC 3161 timestamp authority (DigiCert). The certified time is attested by that authority and can be checked offline against its own certificate chain, with no reliance on SeyAero. Where an anchor predates independent countersignature, or was issued during an authority outage, the record below states it in terms.

How custody verification works, who signs what, and how to check it offline →