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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 442 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 · Harsha R***

Kestrova Gachibowli · issued 25 Oct 2026, 12:04 pm IST · valid to 23 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
Harsha R*** · KSV-HYD-20359
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 · English
Notice hash
5f1b73663182facbf51c4247c6496f2ba055c94f284db505c0b63d560e78799d
Receipt hash
9f6cb52c68ae7e79981b5eb15f3b1c88dbfeb0d58ce34bd74de2933c969d74d0
Signature
4fwSClebw6JIHI9z5HMT3UexhkdPJGGC7PgTyHg7HOyxyjoSPTk0_EH7c_9GDnxAfy_DeBWWpe8TzkFQZwLqBQ
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #481 receipt issued · 25 Oct, 12:04 pmedb1113df09c7293

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

FHIR endpoint