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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 · Sameera J***

Kestrova Gachibowli · issued 10 Oct 2026, 11:10 am IST · valid to 8 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
Sameera J*** · KSV-HYD-20216
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
7ab77d8dc15ce645210f010cfbfcc33028b6a74ebed89ed0d0ac79f62433fbd2
Signature
oBaCOJO2S8YcEc2rwi9twmfEtgwqrBvzyGQD6QL0UjpbCgjAN073DgCPpWysUfe-jTeg_dg2_ap5LLiddttuBw
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #314 receipt issued · 10 Oct, 11:10 amc64b5e19111ff2b2

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

FHIR endpoint