Verifiable exchange-rate evidence for business records

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

Evidence workflow

Give reviewers exchange-rate evidence they can check independently

When a workpaper depends on an exchange rate, give the reviewer more than a copied number or link. Keep a signed proof with the source, selected date, rate context, and verification details so the reviewer can inspect the evidence without rebuilding the trail or signing in to your account.

From the first question to reviewer follow-up

Connect the rate to its source and date

A rate in a workpaper is easier to review when the file identifies the official source, the selected date, and the dataset behind it. Keep the reason for choosing that source and date in the workpaper.

Preserve the document used to support the calculation

Attach the Signed FXProof Proof PDF to the workpaper that contains the rate-dependent calculation. The proof keeps its source and rate context together instead of asking the reviewer to reconstruct them from a copied number or an old link.

Check the document's verification details

The reviewer can inspect the PDF without access to the preparer account.

  • Source attribution and source date.
  • Rate context used in the calculation.
  • Embedded digital signature.
  • Document id and payload hash for the public FXProof check.

Reduce follow-up questions about provenance

A consistent proof gives the preparer and reviewer the same source, date, rate, and verification trail. That does not remove professional review, but it reduces avoidable questions about where the number came from.

Understand the limits of the evidence

Keep the audit conclusion and explanation of source selection in the workpaper. FXProof supplies the exchange-rate proof document; it does not decide whether the rate choice, conclusion, or evidence package is appropriate. Acceptance depends on the auditor, procedure, and jurisdiction.

Before fieldwork

Attach proof PDFs to the rate-dependent workpapers before questions arrive.

View a proof sample

The self-contained document

See why the proof and verification fields stay inside one signed PDF.

Read signed PDF guide

During review

See how a reviewer checks the document id and payload hash without account access.

Read verification guide

Historical workpaper

Use historical proof when the reviewer asks where an older source/date/rate came from.

Read historical proof page

Internal control hand-off

Use one evidence pattern when the same kind of rate support moves across preparers, reviewers, and periods.

Open internal control use case

Questions

How do I attach the proof PDF to an audit workpaper?

Attach the Signed FXProof Proof PDF to the workpaper that contains the rate-dependent calculation. Its FXProof proof and verification fields are already inside the PDF.

What can an auditor verify?

The auditor 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.

Does FXProof guarantee audit acceptance?

No. FXProof provides a source-attributed proof document. Acceptance depends on the auditor, procedure, and jurisdiction.

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.