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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

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.

Registry

Consent receipt

E-pharmacy order · Tarun V***

Kestrova Gachibowli · issued 20 Oct 2026, 8:40 pm IST · valid to 18 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

  • 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
Tarun V*** · KSV-HYD-20176
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 v2026-09.1 · English
Notice hash
5f1b73663182facbf51c4247c6496f2ba055c94f284db505c0b63d560e78799d
Receipt hash
f9c70f3d78b0a25d4e58f6d6258a2dfba442639defbb8c39135dee9438012a0c
Signature
RqC2zjhBMfBeJXG6b2c0jx6DPfEMt8VkPbSIp9tNPvGU-T7V8JeYAf766Q1g3U5uOBogXH_-UA1RmoPU2gEcCQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #427 receipt issued · 20 Oct, 8:40 pm2c44332e357e7b9e

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

FHIR endpoint