Verifiable exchange-rate evidence for business records

Keep source attribution, selected date, document id, payload hash, and public verification together.

Evidence workflow

Keep dated exchange-rate evidence with a dispute or review file

When a calculation may be questioned later, keep the exchange-rate evidence with the original record before links, pages, or staff memories change. FXProof packages the supported official source, selected date, rate context, signed proof, and verification details; the parties and their advisers decide what the evidence means.

From the first question to reviewer follow-up

Which facts should be preserved?

Keep the underlying contract, invoice, calculation, transaction record, and relevant correspondence. Add a signed proof for the supported official reference rate used in the calculation.

Why do the source and selected date matter?

A number without its publication and date can be difficult to reconstruct after the event. The source and date show which official reference-rate record the calculation relied on.

What can another person verify?

A recipient can inspect the source and rate context, validate the embedded digital signature, and use the document id and payload hash shown in the PDF on the public check page.

Why may a saved link or screenshot leave questions?

A page may change, and a screenshot may omit the dataset, date, or surrounding publication context. A signed proof preserves the selected source data and verification details with the original file.

What does the document not decide?

The proof does not decide which contractual term applies, whether a calculation is legally correct, or who is liable. Those questions remain with the parties and their professional advisers.

Why does acceptance depend on the recipient and procedure?

A court, authority, customer, auditor, or other recipient may apply its own evidence rules. FXProof provides a dated, source-attributed proof and verification path; it does not guarantee evidential acceptance or a dispute outcome.

See the evidence format

Inspect a public sample before deciding how it fits the dispute or review file.

View a proof sample

Historical record

See how supported past dates and proof readiness work when the original event is older.

Find a historical proof

Independent check

See what the recipient can verify without access to the preparer account.

Read verification guide

Questions

Can I keep an FXProof document with a dispute file?

Yes. Keep it with the calculation and underlying business records when the selected official reference rate may need to be explained later.

Does FXProof decide which rate should govern a contract?

No. FXProof documents the supported official source and date you selected. Contract interpretation and source choice remain outside FXProof.

Is this legal advice or guaranteed court evidence?

No. FXProof does not provide legal advice or guarantee acceptance by a court, authority, or other recipient.

Keep the proof with the file that used the rate

Inspect a static sample first, then use an account when you need a proof bundle for a concrete dataset and date.