IntegriMark Notary
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A live IntegriMark demo

When you vouch for a document, let anyone verify it.

IntegriMark Notary is the integrity layer for the professionals who stand behind documents: notaries, witnesses, auditors and compliance teams. Stamp a document’s fingerprint onto a public ledger and your word becomes something anyone can check, proof that this exact file existed at this exact moment, and hasn’t changed by a single character since. The file never leaves your device, and you hold nothing.

Try it — notarise a document

This is a live demonstration. Drop in any file and it writes a real, permanent record to the Aptos public ledger. Free, no sign-up, and the file itself never leaves this browser.

Drop a file here, or tap to choose Fingerprinted on your device with SHA3-256. The file never uploads. Up to 25 MB.

Your word, made checkable

You certify the document; IntegriMark makes that certification verifiable by anyone. A client, a counterparty, a court or a regulator can confirm it for themselves, without taking your word, or ours.

Nothing to hold, nothing to leak

The file is fingerprinted on the device and never uploaded. You store no documents, we see no contents. There is nothing in anyone’s hands to lose, alter, or be breached for.

A proof that doesn’t depend on us

The record lives on a public ledger, timestamped by the network itself, and stays checkable for as long as that ledger exists, with or without IntegriMark.

Built for the professionals whose name means something on a document.

If proving a document is genuine is part of how you earn trust, this is the layer that makes it effortless, and independently checkable by anyone who ever doubts it.

Try the demo →

Bringing this to your practice? Talk to us →