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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

E-pharmacy order · Zoya S***

Kestrova Gachibowli · issued 9 Oct 2026, 8:24 am IST · valid to 7 Apr 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

  • Medicine order and dispensingneeded for the service Granted
  • Share prescription with pharmacyneeded for the service Granted
  • Share address with courierneeded for the service Granted

Who, and how sure

Patient
Zoya S*** · KSV-HYD-20317
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.epharmacy_order v2026-09.1 · తెలుగు
Notice hash
41ccf64c10b55e956163704e2b20a269c4fb353d345fa37dba75acd14d2a84fe
Receipt hash
aef6aa249135500c59c5f0f6e4197cf466174fd67b8b0aed1d8f7a5cac7cfb53
Signature
UvuFnSfZmTnATsujQ-_wxiYfYPPnh6fpYgY5Dpt_iHQM9F9FqGwECcV1usJWEeixflOsS6ZdX6yeIG5ZLctLBg
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #299 receipt issued · 9 Oct, 8:24 am306efd5e474b57f8

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

FHIR endpoint