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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 443 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 R***

Kestrova Gachibowli · issued 19 Oct 2026, 10:40 am IST · valid to 19 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
Kavya R*** · KSV-HYD-20262
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 · తెలుగు
Notice hash
6985c73faa61818d9b2f89331bfca7704cbb23a6b13fe13a6adc6b1043cc87d4
Receipt hash
81f6cb5d221887c39e1b8443cd962775de982077589dacf8fe79dd9e56d896de
Signature
ZVEqyjBOeVZ2VwTKATxZsD_8hZ8hNA6Ng6Przw8VRoYovezD3hskZXjl_BjZ2be4jofFE6zGo4aiynnfyZR0CA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #410 receipt issued · 19 Oct, 10:40 amd7c2079684d0135e

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

FHIR endpoint