Check a receipt
Check any envelope, anywhere.
Paste an envelope id or its JSON. The content hash, the signature and the Bitcoin timestamp are each checked here, and every step works offline. The full recipe is on How it works.
Where to find a real one
Sign in and open your activity. Every row there is a real receipt this page checks. No sample ids are planted here, so a made-up id comes back as not found rather than as an invented trace.