check a receipt · free, for anyone
Is this receipt real?
Open a receipt you saved and this page checks it. You learn whether anything in it changed after it was signed, and which key signed it. You need no account, and nothing is sent to us.
The check starts as soon as you choose. If you also saved the key file, choose both together to learn that this exact key signed it.
The check happens in your browser. Nothing is sent to us.
the answer appears here
Choose a receipt you saved from this site, like the one from the rest-house day. The answer shows here.
how checking works, screen by screen
Open the receipt file
The receipt you saved. You can add the key that came with it.
tap
Real, or changed
The check happens in your own browser. Nothing is sent to us.
tap
- Screens
- 2
- Taps
- 2
- Typing
- none
- Smartphone
- not needed
- Internet
- needed
- Account
- not needed
- Bank account
- not needed
- App
- not needed
- Another way
- Scanning a receipt's code with a phone camera is planned but not built.
- If you say no
- Nothing to stop. Checking leaves no trace.
- What we keep
- Nothing. We never learn who checked.
- Open today?
- open
Today, on the site
- Download the receipt
- Download a separate key file
- Install a developer tool on a computer
- Open a terminal window
- Paste a 127-character command
The command the site shows fails today. A longer one works (ROADMAP known defects).
three kinds of receipt, one rule
“Shown, not sworn.”
Experience · Indusland
Show you were there
Visits, readings, attendance and where things come from. The place confirms it, and you keep it.
In the practice country: the journey ledger
Transaction · Duedale
Show it arrived where it was meant to
Money, or anything else of value, given for a purpose. The person who got it confirms it arrived. Nothing here sends it, holds it or pays it.
In the practice country: the glass treasury
Work · Oreoasis
Show how the job was done
Work by people or AI helpers, recorded as the steps of a job. Never keystrokes, never screens. A person answers for it. Nothing here does the work or judges it.
In the practice country: the deed ledger
for builders: check from a terminal instead
The same check runs offline with the open command-line tool. This form was tested from an empty folder on 2026-09-24 and passes; it has been tried on Windows only.
npx -y @kashscript/attest@0.1.8 verify indorania-day-hospitality.json --key indorania-visa-key.txt --signer-did "visa:…"outside the model — real, from our world
Indorania is an abstraction, but the philosophy it runs on is real. KashScript is a software foundry building the proof economy in our world: proof of experience, proof of money, and proof of work as working software — signed records a stranger can verify offline, without trusting the producer. Indorania models a society that runs on it; the foundry builds the pieces one package at a time. The receipts this site issues — the visa, the worked days — are signed and verified with that same published package; nothing here is a mock-up.
Visit KashScript ↗Not yet true
Scanning a receipt’s code with a phone camera is not built yet.
This page shows whether a receipt changed and which key signed it.
It cannot tell you who owns that key.
No receipt yet? Try a practice run and save one