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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 · Gayatri K***

Kestrova Gachibowli · issued 1 Oct 2026, 3:44 pm IST · valid to 30 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
Gayatri K*** · KSV-HYD-20074
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
4c7f6f2ee86fc52cfb8ca953013e280093365344602fd9bc34631ec830310fb9
Signature
nsxaeTwokz_pz7oUAhkVnIL4_M9580Bd3K1_pYTBmZ0utv7GtUiVh_q951B1Qs5BD7ove3O0ttV0qaxXZXMjBQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #239 receipt issued · 1 Oct, 3:44 pmb26dfaabc039c8f7

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

FHIR endpoint