Choose the source before the proof
Start with the institution your policy, accountant, client, or reviewer expects. The active catalog above comes from the current FXProof source records.
The institution publishes the reference rate. FXProof packages the selected source data and verification details into a signed proof.
What the proof carries from the source
FXProof turns supported source data into a document that is easier to keep with an invoice, expense, accounting record, workpaper, tax file, customs/VAT file, dispute record, or internal review.
- Official source name and source code.
- Source date or reference date used for the rate.
- Rate, product, and periodicity context when available.
- FXProof document id, payload hash, timestamps, and verification metadata.
- Proof bundle readiness before a team relies on a concrete dataset and date.
Why source choice matters
A screenshot or official link can be useful context. The problem appears when the file no longer shows which date and rate were used, or when a reviewer has to reconstruct the decision months later.
Starting from a supported source gives the team one repeatable evidence pattern: choose the source and date, open the ready proof bundle, and keep the Signed FXProof Proof PDF with the business file that used the rate.
Important limits
FXProof is not affiliated with or endorsed by the listed source institutions. Acceptance of a proof document depends on the recipient, procedure, and jurisdiction.