How do I verify a notarized document?

Upload the document or paste its SHA-256 hash at notarychain.app/verify. NotaryChain recomputes the hash and checks it against the Hedera public ledger. A match confirms the document is authentic and unaltered; any change is detected instantly. No account is required and verification is free.

Is document verification free?

Yes. Anyone can verify a NotaryChain document, certificate, or commissioned notary by hash or certificate ID at /verify with no account and no cost.

What does a blockchain seal prove?

It proves the exact document existed at the time of notarization and has not been altered since. The seal’s cryptographic SHA-256 hash is permanently recorded on the Hedera Consensus Service.