Not affiliated with Certinal.

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

Video teleconsultation · Farhan P***

Kestrova Gachibowli · issued 19 Sep 2026, 10:06 am IST · valid to 19 Sep 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

  • Treatment and careneeded for the service Granted
  • Share prescription with pharmacyneeded for the service Granted
  • Recording of consultation Granted
  • Lab test referralRefused

Who, and how sure

Patient
Farhan P*** · KSV-HYD-20447
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.teleconsult_video v2026-09.1 · हिन्दी
Notice hash
6ed70ce810c035003d74589c467a427766e21f789a197aa388598e6aa432aed4
Receipt hash
0878af169eea5c8b19b2806a9fcba1d7b661d7f78e068a6f5fd7f5a4211c07db
Signature
-Y2QW_StMd7C-fLhl6j3lfmanRDbgbwPJvMEs2I44-rSq53_D9K2XqWGMPu2czhdGutU1c7oPvaEqXQ_iFySAw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #138 receipt issued · 19 Sep, 10:06 am2f1c2a47c844e9d5

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

FHIR endpoint