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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

Inpatient admission · Padma J***

Kestrova Gachibowli · issued 15 Oct 2026, 9:41 am IST · valid to 13 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

  • 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
Padma J*** · KSV-HYD-20255
Identity
L2 ABHA-linked mobile OTP
Factors
abha link: simulated in demomobile otp: checked by server
Capture
ceremony · self-serve · kiosk
Teach-back
partial · 0.76 · live model · answer hash 0b94dfc84b20

What was shown, and the seal

Notice
notice.ipd_admission v2026-09.1 · తెలుగు
Notice hash
dc9335ec779c43839810b25d0f8348b781969aa325ec1ac07fe4a6119f1c1039
Receipt hash
1bc61c11cea9c194cf724d8a7b420d78e92a0704574b6d8130a63c390a6f0881
Signature
tInz3ytF3ZvFbwr96kQCHSrQhaj1Qgm8k6Eh0sgo11s9YWZXv_f1bTI3n0I8kCiHaw_S_XcqkMaPQi0XXJopCA
Algorithm and key
Ed25519 · ksv-47c7d4987f3a

Audit chain entries

  1. #365 receipt issued · 15 Oct, 9:41 amd18bab291e2ebb2b

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

FHIR endpoint