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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 448 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 V***

Kestrova Gachibowli · issued 7 Sep 2026, 6:56 pm IST · valid to 7 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 consultationRefused
  • Lab test referralRefused

Who, and how sure

Patient
Varun V*** · KSV-HYD-20248
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 · English
Notice hash
81a18033e3fad7f2e2c8cd5d8e8dd84db69071fd3709d804f6b7993440c56ce6
Receipt hash
0869ac8671df3e8be4dc7829c61ee2217740079286e5709c50e7f7324664c51a
Signature
oRfnLKz0YN9hwLrq5YUvxo7MygUotcnWoKsL68o3KI0CSwdsDCRkoMeEzWXXvFZv5oLnFakxJ-QrV46_63jzCQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #49 receipt issued · 7 Sep, 6:56 pm593e73d74269c3b7

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

FHIR endpoint