Blockchain notarization vs. a traditional notary.
They sound alike and solve different problems. A traditional notary vouches for who signed something. Blockchain notarization proves that a document existed and has not changed — and lets anyone verify it without trusting the issuer.
The core difference
A traditional notary public is an identity service: they confirm a signer is who they claim to be and witness the act of signing. The evidence lives in the notary’s journal and their authority — you trust the notary and the records they keep.
Blockchain notarization is an existence-and-integrity service: it proves a specific file existed by a specific time and has not been altered since, using a fingerprint anchored to a public chain. The evidence lives on the blockchain, checkable by anyone — you trust math and a public ledger, not a person.
| Blockchain notarization (notaros) | Traditional notary public | |
|---|---|---|
| What it proves | A document existed at a time and is unaltered | The identity of a signer; that signing occurred |
| Who you trust | A public blockchain — no one in particular | The notary and their records |
| Independent verification | Anyone, anytime, without the issuer | Requires the notary’s journal / authority |
| Document privacy | File never leaves your device (hashed locally) | Document is shown to the notary |
| Cost | $25, no appointment | Per-act fee + travel/scheduling |
| Availability | Instant, online, worldwide | In person or via approved RON platforms |
| Identity verification / RON | Not provided | Yes — its core purpose |
Which do you need?
Need to prove a document existed on a date, protect a trade secret’s priority, timestamp a code release, or fix evidence in time? Blockchain notarization is a strong, private, independently verifiable fit. Need to notarize a signature’s identity for a deed, affidavit, or transaction where the law requires a commissioned notary or Remote Online Notarization (RON)? Use a traditional notary — notaros does not provide that, and says so plainly.
They also combine well: notarize the signed document’s existence and integrity with notaros, and use a notary where identity is legally required.