live demo · not a mockup

The whole instrument, running in your browser

Every surface below is checking a real receipt chain right now, in your browser, with no server. Flip the switch to see what each one does when the data is clean, when it needs a second look, and when a number has been changed. Then take the data out and watch it re-verify across formats.

TRY IT ·

Status light

Badge

Verified Data tab

Inspector console

Take the data with you

Export the verified rows above and the proof comes with them. The fingerprint is taken over the data, not the file format, so the same rows exported as CSV and re-checked as JSON produce the same hash and stay green. Use the Data tab's "Take your data" control to download a bundle; the panel below proves the round-trip live.

# bring an edited file back under your key (re-attests; never silent):
receipts ingest report.csv --as period --key keys/signing.key