Verifiable exchange-rate evidence for business records

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

About FXProof

Built for the moment someone asks, “Where did this rate come from?”

When an exchange rate goes into an invoice, expense, accounting file, tax calculation, audit response, or internal review, the number alone may not be enough. FXProof keeps the official source, selected date, signed proof, document id, payload hash, and verification details together.

Finding the rate is only half the job

Official rates are public reference data. The difficult part often comes later: showing which source and date were used, keeping the supporting file, and helping another person check the record without rebuilding the trail by hand.

That problem exists for a solo business preparing one year-end file as well as for a finance team closing every month. FXProof turns the pieces into one repeatable evidence workflow. The official institution remains the source of the rate; FXProof provides the signed proof document, its identifiers, and the verification layer around it.

How it works

A short path from source to checkable record

Choose

Select the source and date

Start with the supported official source, dataset, and date used in the file or review.

Open

Open a ready proof bundle

Readiness checks confirm that the proof files for that dataset and date are available before opening.

Check

Verify the document later

A recipient can use the document id and payload hash on the public verification page without an account.

Supported official sources

The list below comes from the active FXProof source catalog, so it stays aligned with the sources currently available in the product.

boc Bank of Canada
ecb European Central Bank
fed Federal Reserve System
hmrc His Majesty's Revenue and Customs
nbk National Bank of Kazakhstan

See the document before choosing a plan

Open a static proof sample, then try the same public verification path a recipient can use later.

Directory listing

Software directory listing

FXProof is listed in the SourceForge business software directory.