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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 · Priya S***

Kestrova Gachibowli · issued 11 Oct 2026, 11:00 am IST · valid to 9 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 contact Granted

Who, and how sure

Patient
Priya S*** · KSV-HYD-10001
Identity
L2 ABHA-linked mobile OTP
Factors
abha link: simulated in demomobile otp: checked by server
Capture
ceremony · self-serve · kiosk
Teach-back
understood · 0.91 · live model · answer hash 09c3be2fea94

What was shown, and the seal

Notice
notice.ipd_admission v2026-09.1 · English
Notice hash
184343f127d606bac817839ad706047b3e836af926c539bb81fa4c2661c253bf
Receipt hash
d03722d70a95eaa2f4fe5020ff64baa3180b69bbd21528a0912bbedc429a97e5
Signature
L1WpbCDriQbJtWKKrntBmwAU3_0Jp0IXo8lwswKIB0Q8JnfKpPpIC5Ur0113U3hA8P6NeDTKA6qAKOmf7T-rDw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #328 receipt issued · 11 Oct, 11:00 amaba6757f5a08613f

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

FHIR endpoint