Fuentio
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Proof codes

Check a proof code

Every Fuentio verification gets a proof code. Type it to see what was checked, against which official source and when. No account needed.

Free plan · 100 units a month · no card

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FUE, the country, the date, then six letters or digits. Lower case is fine. Try: FUE-FR-20261012-ABAT38

A proof code never shows who ran the check.

What a proof code shows

  • The outcome: verified, partly verified, not verified, or not enough data, with the reasons.
  • The company: its name, its Fuentio ID and the identifier checked.
  • Each check and its result.
  • The official sources, with links, licences and fetch dates.
  • When the check ran, to the second (UTC).
  • The data fingerprint: anyone can see that the stored answer hasn't changed since.

Run your own checks with proof codes

A free key gives you 100 units a month, no card. A verification costs 5 units and returns its proof code.

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