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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 445 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 S***

Kestrova Gachibowli · issued 28 Sep 2026, 10:56 am IST · valid to 27 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
Tarun S*** · KSV-HYD-20129
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
d399ae7a6edb3d2877cc1fb949dbaabe8d3ce56cad195d371b816e78c46115ea
Signature
GOiitQDYXG0J0rhAbLpKl12fgEUAeJXm0s0IOtr2gMXpGME4qIP05O595493OV06Cn2xXXY4Tc58rGIJtfkwDg
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #212 receipt issued · 28 Sep, 10:56 am056044b184fcce0b

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

FHIR endpoint