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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

Video teleconsultation · Kavya M***

Kestrova Gachibowli · issued 3 Oct 2026, 7:05 pm IST · valid to 3 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 referral Granted

Who, and how sure

Patient
Kavya M*** · KSV-HYD-20032
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
715fda5d63bb2e96f247579f5bfe57f8518b92344938c93223dc0d8ff85fca8a
Signature
59MZTASXvkWA3sxKXtTfmzqckbv0VI4S5BQYRQ3vt_KK3xeYfmMcpCDIxX_uwgOdWLUfJhDKGjDw-EWlWPMXCA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #256 receipt issued · 3 Oct, 7:05 pm475712ecb2d7eefe

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

FHIR endpoint