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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 447 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

Inpatient admission · Mahesh K***

Kestrova Kukatpally · issued 23 Sep 2026, 6:04 pm IST · valid to 22 Mar 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
  • Diagnostic lab sharingneeded for the service Granted
  • Insurance and TPA sharing Granted
  • Updates to family contactRefused

Who, and how sure

Patient
Mahesh K*** · KSV-HYD-20084
Identity
L2 ABHA-linked mobile OTP
Factors
abha link: simulated in demomobile otp: checked by server
Capture
ceremony · self-serve · kiosk
Teach-back
partial · 0.71 · live model · answer hash 0246b68753bc

What was shown, and the seal

Notice
notice.ipd_admission v2026-09.1 · हिन्दी
Notice hash
9b8b399be413d139fb3b5fb4984ba6a82873621d217f7264b307e101704c325f
Receipt hash
cf9a8ea2992ee0bc5c3557b1a51a271062f2147b36849aa96e0b7577c2bf04af
Signature
u1SGMqwUpdzEtCzaRXkNr21ijgyzXlhX_vOD1yYSZtvS2RhfzU-7Zt19_lRpkECtHnhqayGWcWES3YVtPsW0Cg
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #175 receipt issued · 23 Sep, 6:04 pm37fb96197b72ea1b

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

FHIR endpoint