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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 442 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 · Sunita D***

Kestrova Gachibowli · issued 25 Oct 2026, 1:13 pm IST · valid to 25 Oct 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
Sunita D*** · KSV-HYD-20290
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
6dfd8f41ca56184ab814384881c20ed2094009c6476dc501fec07053f8d8b874
Signature
6vDycRGudywmIG-nWUKAC_3h4tDFpK5tCcDbiLKDNo71qwznXeRMlcPhKToSfr9ecOKqJw2F4e08mfJDLR2hCA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #482 receipt issued · 25 Oct, 1:13 pm4ec5de647cc810e6

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

FHIR endpoint