FXProof

FXProof is a B2B SaaS platform for creating signed and verifiable proof documents based on official exchange rates. Each proof bundle connects the official source, applicable date, rate data, document ID, payload hash, verification metadata, and a public verification path.

The service is designed for accountants, finance teams, tax professionals, auditors, consultants, independent professionals, and software platforms that need a repeatable way to document which official exchange rate was used and preserve the supporting evidence for later review.

FXProof currently supports official data from the European Central Bank, HMRC, the Federal Reserve, the Bank of Canada, and the National Bank of Kazakhstan. Users can access proof documents through the web interface or automate the same workflow through the API.

FXProof does not replace accounting, tax, legal, or audit judgment. It provides a structured evidence package around official exchange-rate data.