Medical Records (EHR) on PYRAX
Electronic health records are the most valuable and most breached data in healthcare, locked in proprietary EHRs that neither patients nor providers fully control. PYRAX flips the model: records stay encrypted in the patient's custody as off-chain data, only commitments and consent receipts hit the chain, and any authorized party retrieves records through revocable, ZK-gated viewing keys.
The market
Source: Grand View Research, 2024. Figures are indicative and provided for context.
What's broken today
How PYRAX transforms it
Concrete network elements mapped to this business.
PHI stays off-chain — only commitments
The encrypted record lives in patient-controlled storage; the chain holds only a hash commitment, so there is no central record database to breach.
Viewing keys for scoped access
A patient issues a time-boxed, revocable viewing key to a specialist or ER, granting exactly the slices needed and nothing more.
Consent-gated, revocable sharing
Every access grant is an on-chain consent receipt the patient can revoke instantly, and no read is possible without a live grant.
eth_getProof access-log integrity
Each record access is committed and provable, producing a tamper-evident who-saw-what audit trail that satisfies HIPAA accounting-of-disclosures.
Multi-VM contracts for record logic
EVM/WASM/Cairo contracts encode consent policies, break-glass emergency access rules, and cross-institution exchange without a central intermediary.
Buildathon: dApp ideas
Ship-ready concepts for medical records (ehr) on PYRAX.
MyChartKey
01Patient-owned record wallet that issues and revokes scoped viewing keys to any provider on demand.
CommitMed
02Record-commitment registry proving a document's integrity and timeline without storing its contents on-chain.
BreakGlass
03Emergency-access contract granting ER staff time-limited entry that is fully logged and auto-expires.
DisclosureLedger
04HIPAA accounting-of-disclosures dashboard built from eth_getProof access commitments.
PortMyData
05Cross-EHR portability tool that reconstructs a longitudinal record from consented provider commitments.
GrantGuard
06Consent-management app where every share is revocable and every read requires a live on-chain grant.
PediPass
07Guardian-managed pediatric records that transition control to the patient at the age of majority via contract logic.
RecordProofAPI
08Developer SDK for issuing and verifying record commitments and viewing keys in third-party health apps.