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Blockchain
Blockchain Certificate Verification
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Blockchain · Capstone
Patient Medical Records on Blockchain
Encrypted records on IPFS with patient-granted access on-chain
5-6 weeks build
Overview
Records are encrypted in the browser before upload to IPFS, so neither the chain nor the storage network ever sees them in the clear. The contract holds only pointers and an access list the patient controls: grant a doctor access, set an expiry, revoke it later, with every read logged. An academic prototype using dummy records, not a clinical system, deployed to Sepolia or local Hardhat.
What makes it stand up
- 01Client-side AES encryption before anything reaches IPFS
- 02Patient-controlled grants with expiry and revocation
- 03Per-doctor key sharing using public-key encryption
- 04On-chain audit trail of every access event
- 05Academic prototype on dummy data, not for clinical use
Module breakdown
- 01
Encryption
Encrypts each record with a fresh key in the browser.
- 02
Storage
Pins ciphertext to IPFS and stores the CID on-chain.
- 03
Consent contract
Tracks who may read which record and until when.
- 04
Key exchange
Wraps the record key with the doctor's public key.
- 05
Portals
React views for patients, doctors and the access log.
After this, you will be able to
- Explain why medical data must never be written to a public chain
- Defend how revocation works when a doctor has already read a file
- Demo granting, using and revoking access to a record
Technology stack
- Solidity
- Hardhat
- ethers.js
- React
- IPFS
- Node.js
- Level
- Capstone
- Domain
- Blockchain
- Build time
- 5-6 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support