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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 · Yusuf Q***

Kestrova Gachibowli · issued 13 Sep 2026, 12:10 pm IST · valid to 12 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
Yusuf Q*** · KSV-HYD-20333
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
46134147606d9155e293d29bd9b7e0dd52afb36484e9848f704e5c48942cfd67
Signature
K_x8-0TB17KC2dlUvVjGPmNeu27q7sfyKF22mrHlvstJqrzhtxhdC87HRMzcP9QBSGb--7dVWb9blDFF-HOTBw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #89 receipt issued · 13 Sep, 12:10 pm464b047c18a468e5

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

FHIR endpoint