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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 442 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 · Anil J***

Kestrova Kukatpally · issued 29 Oct 2026, 5:41 pm IST · valid to 27 Apr 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
Anil J*** · KSV-HYD-20329
Identity
L3 Voice match + OTP
Factors
voice match: simulated in demomobile otp: checked by server
Capture
ceremony · self-serve · kiosk
Teach-back
partial · 0.72 · live model · answer hash 6da6528d9668

What was shown, and the seal

Notice
notice.ipd_admission v2026-09.1 · English
Notice hash
184343f127d606bac817839ad706047b3e836af926c539bb81fa4c2661c253bf
Receipt hash
2c2105d39da6574fc6dec33d434a9db0d8dbea1dc2e2ffd9b0857ec6c1c15615
Signature
fF4ZzIzDOddH1mmKn5i5fvf8tKyiA6cDnSqekgCab8ILCMRJmBidXjn24SCcyS109zWHNTjypJ5wToz_bw4qAA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #538 receipt issued · 29 Oct, 5:41 pmbee8c34fab0ab2f2

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

FHIR endpoint