Record which version of the agreement applied at the moment of consent. With ProofReg Duo, both parties independently confirm the same version.
One version you both agreed on.
ProofReg records the exact version of your agreement on the XRP Ledger, with an independent timestamp.
Agreements often go through several versions before both parties agree. If a dispute over a clause arises later, it comes down to which version applied at the moment of consent. Record that version, and there is one verifiable reference later instead of a series of drafts.
You put the agreement in a file (usually a PDF) and record its fingerprint. Only those 64 characters go to the ledger; the text itself stays yours. ProofReg records which version existed — not who was authorised to sign, or whether the content holds up legally.
ProofReg helps at any moment where it might later become unclear which version you agreed on.
Record the final version, so it is clear which text applied.
The recorded version shows exactly what it stated.
Record each version, so every change is traceable.
In longer relationships it counts which agreement was the basis.
ProofReg records your agreement in three steps: put it in a file, record the moment, and verify it later.
Save the final version as a PDF. Your browser calculates the fingerprint locally; nothing is uploaded.
The fingerprint goes onto the public XRP Ledger with a timestamp. With Duo the other party independently confirms the same version.
You receive a certificate id and verification link. Anyone can later check that this version existed then.
ProofReg Duo lets both parties record the same agreement independently, and completes only on an exact match.
With Solo you record the agreement — enough to show that and when that version existed. With Duo the other party independently records the same text; only on an exact match is Duo complete. That fixes that you both held exactly the same version.
ProofReg Duo does not prove whether the agreement holds up legally or who was authorised to sign; it proves you both held the same version. That is exactly the point a dispute arises over.
ProofReg automatically creates a certificate with every registration and anchors that certificate itself on the XRP Ledger too, at no extra cost.
You receive the certificate by email. The certificate can carry the email address it was sent to; because it is delivered by email, whoever holds it had access to that mailbox at that moment — so the proof is tied to an email address, not to a verified identity.
Because the certificate itself is on the ledger, no one can undetectably alter or backdate it afterwards — not even us. So even your proof has a proof, which anyone can verify without ProofReg.
ProofReg Duo lets two parties each record the same document independently. Only when both fingerprints match exactly does the mutual registration complete. It proves you both held the same version, not that you agreed.
ProofReg records that this exact SHA-256 fingerprint, with the label and registrant you entered, existed on the XRP Ledger before the recorded ledger timestamp. That is independent and publicly verifiable, without sharing the document.
No. Your browser calculates the SHA-256 fingerprint locally. Only those 64 characters, plus an optional label or registrant you choose, are recorded. The file never leaves your computer.
A registration costs from €1, paid with credits. Verifying a certificate is always free and account-free.
Yes. A ProofReg certificate states the fixed anchoring account, the certificate id and the issue date. With those, it can be verified in a few steps on any public XRP Ledger explorer, without ProofReg.
No. ProofReg records which version existed and when; it does not record identity or authority. You can use it alongside a signature: the signature for consent, ProofReg for the verifiable version and timestamp.
No. ProofReg proves the existence of a version at a moment, not the legal validity of the content. For that judgment you still depend on the agreement itself and the applicable law.
Record an order confirmation · ProofReg vs digital signature · What it proves
Updated July 2026