Record what the order confirmation stated — scope, price and planning. With ProofReg Duo, client and contractor independently confirm the same version.
One confirmation you both agreed on.
ProofReg records the exact version of your order confirmation on the XRP Ledger, with an independent timestamp.
An order confirmation records what was accepted: the scope, the price and the planning. If the project goes differently than expected, it comes down to what that confirmation stated. Record that the moment you agree, and you have a shared reference later instead of two interpretations.
You put the confirmation in a file (a PDF or email) and record its fingerprint. Only those 64 characters go to the ledger; the file stays yours.
ProofReg helps at any moment where the content of the assignment might later be questioned.
Record the confirmed scope, so later it is clear what was included.
The confirmed agreement is beyond doubt.
Register the email, so the assignment is verifiable.
With changes, later it counts which version was the basis.
ProofReg records your order confirmation in three steps: put it in a file, record the moment, and verify it later.
A PDF or email with the confirmed assignment. 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 confirmation existed then.
ProofReg Duo lets client and contractor record the same confirmation independently, and completes only on an exact match.
With Solo you record the confirmation — enough to show that and when that version existed. With Duo the other party independently records the same confirmation; only on an exact match is Duo complete. That fixes that both parties had the same assignment in front of them.
ProofReg Duo does not prove the assignment was carried out well; it proves you both held the same confirmation. That is usually exactly what the dispute is about.
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.
A registration costs from €1, paid with credits. Verifying a certificate is always free and account-free.
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.
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.
The quote is your offer; the order confirmation records what was accepted. Often you record both: the quote as the offer and the confirmation as the assignment you agreed on.
Not necessarily. With Solo you record the confirmation alone. With Duo the client independently confirms the same version; that is stronger in a dispute, but not required.
Updated July 2026