Not affiliated with Certinal.

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 · Ishaan G***

Kestrova Gachibowli · issued 2 Oct 2026, 6:39 pm IST · valid to 31 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
Ishaan G*** · KSV-HYD-20393
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
983c6caad2ee010f59448019cc383e2d681d4b1526ff4e5720cada7aeac1e3db
Signature
z0jdQbF6SFeTHU-1VJU1gakQi2QJEm-aqJOPZwXCbaFJPi0tCjm0uD0tg7zTcb_AZfcBGF6x4FxlwmISPLdUBQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #245 receipt issued · 2 Oct, 6:39 pmabb362512bf88534

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

FHIR endpoint