Paste a receipt JSON (or a receipt id) and check it against the live verification service. No login — the service returns whether it verifies against the signature and hash chain.
curl -s -X POST https://dcs-receipts-production.up.railway.app/receipts/generate \
-H "content-type: application/json" \
-d '{"action":{"kind":"test","target":"demo","summary":"hi"}}'Paste the returned JSON above. Flip one character and it'll read Invalid ✗.