Synthetic tenant: Kestrova Health (fictional), 444 receipts. Sixty days of activity are generated deterministically and anchored to the current hour, so expiry and breach clocks are live. Every receipt is signed at load with Ed25519 key ksv-47c7d4987f3a and re-verified by the same code the public verify API runs. Consents you sign in the patient journeys appear at the top of the registry, held only in your browser.
Consent receipt
OPD visit · Harsha S***
Kestrova Secunderabad · issued 14 Oct 2026, 5:17 pm IST · valid to 14 Oct 2027 · v1
The stored content no longer hashes to the value that was signed. Someone or something edited this record after it was issued.
Integrity alert
signed hash 18c8d7e8dc60f708a5235a2ce708e8f80ec30309dfefac72b3206eaea8016d01
content now hashes to 2ba270e14adf0bedb16a8686a9e5c1fe30aac8e999a08aa01168b53ba65558eb
The audit chain recorded the signed hash at issue time, so the edit is provable. Treat the signed original as the record.
Purposes on this receipt
- Treatment and careneeded for the service Granted
- Diagnostic lab sharingneeded for the service Granted
- Updates to family contact Granted
- Appointment and refill reminders Granted
- Health tips and seasonal alerts Granted
- Partner offers (insurance, pharmacy) Granted
Who, and how sure
- Patient
- Harsha S*** · KSV-HYD-20046
- Identity
- L1 Mobile OTP
- Factors
- mobile otp: checked by server
- Capture
- quick · self-serve · kiosk
- Copy arm
- value exchange
What was shown, and the seal
- Notice
- notice.opd_visit v2026-09.1 · हिन्दी
- Notice hash
- bf0deddfb254022e83f81b0282b6e7406e9ec7f032687a652e6115aa01dac795
- Receipt hash
- 18c8d7e8dc60f708a5235a2ce708e8f80ec30309dfefac72b3206eaea8016d01
- Signature
- 4Djv1miHFQBiu7MotEVkBhE-IFKX44B01u2b2SY6qhZfjeMwdPV-b2dubSulPtopLC8Lqwge2X6EnHfJDbu7CA
- Algorithm and key
- Ed25519 · ksv-47c7d4987f3a
Audit chain entries
- #361 receipt issued · 14 Oct, 5:17 pmf99be51581a8f276
Each entry hashes the previous one, so removing or editing an entry breaks every entry after it.