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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 · Priya S***

Kestrova Gachibowli · issued 26 Sep 2025, 11:00 am IST · valid to 26 Sep 2026 · v1 · replaced by a renewal

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
Priya S*** · KSV-HYD-10001
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 v2026-06.2 · English
Notice hash
aef2168c82d4941b6bc2044e100f358693bb642e9ef47dadd1567b0ad107e7b5
Receipt hash
8bee30a6ee8410ba8110687e4b9c2a409f089438b8a9b3e3d45dd957989ca247
Signature
tffbVCLhOMyvXuwhDNFqYb0L0P9pdkb6ShrGWJecsrWbyJfIm3uyD9Md2-0Fxo9azd6FpmQ1to3t1J6BkH3EDg
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #0 receipt issued · 26 Sep, 11:00 am0228713bc85f6ff0

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

FHIR endpoint