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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

E-pharmacy order · Priya S***

Kestrova Gachibowli · issued 14 Apr 2026, 11:00 am IST · valid to 11 Oct 2026 · 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

  • Medicine order and dispensingneeded for the service Granted
  • Share prescription with pharmacyneeded for the service Granted
  • Share address with courierneeded for the service Granted

Who, and how sure

Patient
Priya S*** · KSV-HYD-10001
Identity
L1 Signed-in app session
Factors
app login otp: simulated in demo
Capture
inline · self-serve · app

What was shown, and the seal

Notice
notice.epharmacy_order v2026-06.2 · English
Notice hash
11b33c1b20e715a7f77d20f22ef6b644601cf6cbc297c402da3259a0c3eea7bf
Receipt hash
91ddaf9d988d5910d571d9ae3b291a69e003284db63bd7e16059788f0ba5fd35
Signature
Y9RkvYU2_jpc_xSIT8fv0Dmpir5jTT81sn4uewkN16bdXAXVfp3naukoMC0XZrriIkrhiK1KK96YFHS5Bhe3Aw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #8 receipt issued · 14 Apr, 11:00 amd492363b15ce3351

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

FHIR endpoint