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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 448 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 · Sai R***

Kestrova Gachibowli · issued 19 Sep 2026, 1:23 pm IST · valid to 18 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

  • 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
Sai R*** · KSV-HYD-20050
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
7e3ddc56c0d9389024feb4de897cef2520fdfb420ec67434d58be7fd4cf3808d
Signature
MjF1yPa8t0Tw2mo9gOORzBZfo7HQ26pj1XvXiypjx7txv79InwUaaazHe89TQVN3lKB5YqSAOLzQ71PGCJMPBQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #141 receipt issued · 19 Sep, 1:23 pm240b2d6c29912eb4

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

FHIR endpoint