Receipts

Check a receipt.

When an Ask first action, like a booking or a payment, is approved in an AI app and sent to the app, Gephyr signs a receipt of what happened. Enter its number, or paste the whole receipt, to see it and check it’s genuine and hasn’t been changed.

What a receipt shows

The app and action, when Gephyr sent it to the app, how the approval came back and which AI app the call came from (as it identifies itself), and the result: done, unclear (the app gave no clear answer, so it may have happened) or refused. For an action that charges, it can also say whether the amount the app answered with matched the price that was approved, never the amount itself.

It never holds the details themselves or who the person is. The inputs, and the id the app answered with, are fingerprints: whoever has the real values can check that they match, but the receipt alone doesn’t reveal them.

A receipt records what Gephyr saw: that the approval matched exactly what ran and came back on the connection it was issued to. Gephyr can’t see inside an AI app, so it doesn’t prove a person pressed a button.

A receipt number is looked up in Gephyr’s records, which keep receipts for 18 months. A whole receipt you paste is checked on its own, with no lookup, and isn’t kept, so a saved receipt stays checkable after that. You can also check one yourself with Gephyr’s public keys (Ed25519; a retired key says until when it signed).

How receipts work →