Patient-governed health records
- Problem
- Fragmented medical records with no portable, patient-controlled consent across institutions.
- Architecture
- On-chain identity & consent with off-chain protected data; UUPS-upgradeable contracts, NestJS orchestration, PostgreSQL.
- Solution
- A hybrid EHR fabric anchoring tamper-evident references while keeping sensitive data compliant and off-chain.
- Outcome
- Interoperable, auditable record exchange with consent enforced cryptographically.
