Synthetic tenant: Kestrova Health (fictional), 443 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 · Ravi I***
Kestrova Kukatpally · issued 20 Oct 2026, 8:13 pm IST · valid to 20 Oct 2027 · v1
The hash recomputed from the stored content equals the stored hash, and the Ed25519 signature over that hash checks out against the published key.
Purposes on this receipt
- Treatment and careneeded for the service Granted
- Diagnostic lab sharingneeded for the service Granted
- Updates to family contactRefused
- Appointment and refill remindersRefused
- Health tips and seasonal alerts Granted
- Partner offers (insurance, pharmacy)Withdrawn
Partner offers (insurance, pharmacy) withdrawn 26 Oct, 5:59 pm IST
event ae556f3e…27ff- Patient-engagement CRM· stop and eraseacknowledged 28 Oct, 4:41 am
- Partner-offers network· stop and eraseacknowledged 30 Oct, 12:15 am (outside 48h)
- Removed from every campaign audience and suppression list updated
Who, and how sure
- Patient
- Ravi I*** · KSV-HYD-20095
- Identity
- L1 Mobile OTP
- Factors
- mobile otp: checked by server
- Capture
- quick · assisted · kiosk
- Copy arm
- value exchange
What was shown, and the seal
- Notice
- notice.opd_visit v2026-09.1 · తెలుగు
- Notice hash
- dd156082448e5c767746e3d559b53e35d5c540c86bb64adb15e773e59da67cf6
- Receipt hash
- 34182bfa288ced3650720833553c11169ca97f00761e8765a3fa45f2e8d51743
- Signature
- I5avX6oNVjKqDksg6RjPttP_Bl9iu5wEybBwUwrWtnusQyxxe6vRnoAXc5UIHUqJI_ydnFfcsoqd-7bKQP_LDg
- Algorithm and key
- Ed25519 · ksv-47c7d4987f3a
Audit chain entries
- #426 receipt issued · 20 Oct, 8:13 pmbebdebcf7e15e506
- #494 withdrawal recorded · 26 Oct, 5:59 pm4f14efc4bec2b881
- #511 processor acknowledged · 28 Oct, 4:41 amea197916153644a1
- #542 processor acknowledged · 30 Oct, 12:15 am9a9138fddf2021ca
Each entry hashes the previous one, so removing or editing an entry breaks every entry after it.