A blockchain-based medical records system — tamper-evident, patient-controlled health records with decentralized storage and a companion mobile app reading real-time sensor data. A+ graduation project at Helwan University.
The problem
Medical records in traditional hospital systems are siloed, vulnerable to tampering, and inaccessible to patients across providers. The team wanted to explore whether blockchain could provide a trustless, patient-controlled record layer.
How I built it
Stored medical records off-chain and anchored their fingerprints on-chain — preserving tamper-evidence without paying transaction fees on every read. The hardest design problem was letting the system evolve over time without losing the integrity of historical records, solved with an upgrade-safe storage design. The companion mobile app surfaced live sensor data — heart rate, oxygen, temperature — to the patient.
- Tamper-evident, patient-controlled medical records
- Decentralized off-chain storage with on-chain integrity anchoring
- Companion mobile app with real-time IoT sensor data
- A+ Graduation project — FCAI, Helwan University