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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 · Ananya S***

Kestrova Gachibowli · issued 7 Oct 2026, 8:30 pm IST · valid to 7 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
Ananya S*** · KSV-HYD-20270
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
185f6ebcbb4085b20d9b67ec20c8aa5b0e418b8c6c346a11d812adf6ed5e7e54
Signature
-L0MekMqHt5MmQ6Bt1rjcYCjPWujmNk-AJGobWvGZGr7IRRq_zjWgiAa_gKdF5IkT8NqXHm3Ldg5h8TTEB9JAQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #290 receipt issued · 7 Oct, 8:30 pm2b7661d371b23fb9

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

FHIR endpoint