Verifiably record which quote existed — price, terms and date. With ProofReg Duo, the client independently confirms the same version.
Avoid arguments over price, terms or date.
ProofReg records the exact version of your quote on the XRP Ledger, with an independent timestamp — so it is not your word against the client's later on.
A quote is rarely final the moment you send it. You adjust a price, add a line, send a new version. If a dispute arises later — over the price, a discount, a delivery date or what was promised — it comes down to one question: which version applied? A file date or an email can be forged; a ledger record cannot.
With ProofReg you record in seconds that exactly this quote existed at this moment. You do not share your file: only the 64 characters of the fingerprint go to the ledger, the quote itself stays on your own computer.
ProofReg is worth it at any moment where the version of your quote might later be questioned.
Record the version you sent, and the price you offered is beyond doubt later.
Prove that and when the quote existed — with Duo the client independently confirms the same version.
Record the version that applies, so it is clear which text you both held.
With extra work and hand-over points, later it counts exactly which agreement was the basis.
ProofReg records your quote in three steps: choose your file, record the moment, and verify it later.
Save your quote as a PDF and choose the file. Your browser calculates the fingerprint locally; nothing is sent or stored.
The fingerprint goes onto the public XRP Ledger, with a ledger timestamp. Optionally you add a label or your company name.
You receive a certificate id and a verification link. Anyone can later check that this quote existed then, without an account.
ProofReg offers two ways to record a quote: you alone (Solo), or you and the client (Duo).
With Solo you record the quote you sent — enough to show that and when that version existed. With Duo the client independently records the same quote; only when both fingerprints match exactly is the mutual registration complete. That fixes that you both held exactly the same version — precisely what matters when it later comes to a dispute.
ProofReg Duo does not prove the client agreed; it proves you both held the same quote. And that is usually the point 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 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.
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.
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.
Record extra work · Record a work agreement · ProofReg vs digital signature
Updated July 2026