Not affiliated with Certinal.

Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 447 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.

Registry

Consent receipt

Inpatient admission · Tarun K***

Kestrova Kukatpally · issued 21 Sep 2026, 8:59 am IST · valid to 20 Mar 2027 · v1

Verified

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
  • Insurance and TPA sharing Granted
  • Updates to family contactRefused

Who, and how sure

Patient
Tarun K*** · KSV-HYD-20365
Identity
L2 ABHA-linked mobile OTP
Factors
abha link: simulated in demomobile otp: checked by server
Capture
ceremony · self-serve · kiosk
Teach-back
understood · 0.98 · rubric · answer hash 4214993cb47a

What was shown, and the seal

Notice
notice.ipd_admission v2026-09.1 · తెలుగు
Notice hash
dc9335ec779c43839810b25d0f8348b781969aa325ec1ac07fe4a6119f1c1039
Receipt hash
a656dd000f1f665f1375d31e43d7b84edc2dac84b573ba8d12ee8a2a5e1259a0
Signature
ukNFxeafexsZe7-I9z6AivhhZHLFD5HX0TR2ytVLjl2lNMZXUM3i1R21aFv26WBV6pOTPOWr0L1vwmJko4n3Dg
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #155 receipt issued · 21 Sep, 8:59 am62f87ec866031143

Each entry hashes the previous one, so removing or editing an entry breaks every entry after it.

FHIR endpoint