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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 444 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 · Srinivas K***

Kestrova Gachibowli · issued 7 Oct 2026, 6:15 pm IST · valid to 5 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
Srinivas K*** · KSV-HYD-20384
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 · हिन्दी
Notice hash
f1d0eb4396e35a8dc4e9ddd85f1cba64150903df9e1e61d41527b6905a6ea23d
Receipt hash
51ff525b0b22f078ace43f8b7eff05e64d5a7a0aaea0d851e654551330c61dbf
Signature
YxcFqh4omNzw2-1SMtmBAbA3NsRoXXHhB6v6AEPDd_FSyWD8ROxBHI6pQ-YMaD8OiwqwbQdSJ7darx4w3hVpCQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #289 receipt issued · 7 Oct, 6:15 pm25cd0f6ae002ba37

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

FHIR endpoint