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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 · Nikhil R***

Kestrova Gachibowli · issued 6 Sep 2026, 11:56 am IST · valid to 5 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
Nikhil R*** · KSV-HYD-20184
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
d95a410a2bb7c4c47cc47d9618bd5639548f2392f2f52906e6837065b4f9f619
Signature
TdDxpFAy1e2FYqJMJySFP9enxpihUJgZFT9L-1Tuvn1LiijRzm0XK-Pr7sl_j9VTtsV9qhmLsHUT4A5-5jerBw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #38 receipt issued · 6 Sep, 11:56 am502885d3098e3d5a

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

FHIR endpoint