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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 · Uma K***

Kestrova Gachibowli · issued 16 Oct 2026, 6:34 pm IST · valid to 16 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 consultationRefused
  • Lab test referral Granted

Who, and how sure

Patient
Uma K*** · KSV-HYD-20379
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
6701e4171c75554e82bdbca1904398527365b0e4e6eb2f54e9e3e9c67e9ab435
Signature
fRKmBHnUpTRwQ-3_Y84ySRmqOhTx-hXeHx5YYDIuYiTB0A0xzgzIFW0Fse8_jYCfQELvDVDkVTkHtYoBYXWnBA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #374 receipt issued · 16 Oct, 6:34 pmb6f2fe583244636f

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

FHIR endpoint