Not affiliated with Certinal.

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 · Deepika C***

Kestrova Gachibowli · issued 7 Oct 2026, 8:35 am 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 consultationRefused
  • Lab test referralRefused

Who, and how sure

Patient
Deepika C*** · KSV-HYD-20376
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
ee82448641c516f565e2f67e4bb60e8090114aa7c08382f265871da4463f168f
Signature
hT9ONRl4_Irqj0jEtRuwcRRDFCWYBh5nxCbw5cXsQ5pLjY7oMsMDs88qwame6xkYqXkI82WaK8BtkCQZaEvHAA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #282 receipt issued · 7 Oct, 8:35 am505c6b26dba9a774

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

FHIR endpoint