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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 447 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 · Varun P***

Kestrova Gachibowli · issued 25 Sep 2026, 9:39 am IST · valid to 25 Sep 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
Varun P*** · KSV-HYD-20153
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
f4d5b0164b2c06e520c21026b4a0f807e5523f0e63be9af2f0bf226536da7ee7
Signature
j4g3iN_5-XetP9xwnDupnOg9tD_xL90NDxc6yzPEyTCYw7UUG5qsUf-_Je3MgkBcxuYcSTvj6DvodwDh-HP8AQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #186 receipt issued · 25 Sep, 9:39 amc0980150ed651187

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

FHIR endpoint