A decentralized healthcare document management system that enables patients to securely submit and share medical documents across multiple healthcare facilities through a single transaction, leveraging Celo blockchain's Model Context Protocol (MCP).
URL: https://health-chain-final.vercel.app/
Smart Contract: https://sepolia.celoscan.io/address/0xB73fCA74F239273ABbb6b3d67dF449146cc2dB45
Github Repo: https://github.com/diptomoy-das/HealthChain-final.git

Patient-Centric Control

• Single source of truth for all healthcare documents
• Granular permission management for each institution
• Revocable access rights
• Complete audit trail of document access

Blockchain Security

• Cryptographic hashing for document verification
• Immutable access logs on Celo blockchain
• Decentralized identity management
• Zero-knowledge proofs for selective disclosure

Batch Processing

• Submit multiple documents in a single transaction
• Share with multiple facilities simultaneously
• Automated verification workflows
• Smart contract-based validation

Regulatory Compliance

• HIPAA compliance framework
• GDPR data protection standards
• Audit-ready transaction logs
• Automated consent management

The healthcare industry faces critical challenges in document management:

• Redundant Submissions: Patients repeatedly submit the same documents (insurance cards, medical records, IDs, certifications) to different facilities

• Administrative Bottlenecks: Manual document processing creates delays and increases operational costs

• Privacy Concerns: Centralized document storage poses security risks and limits patient control

• Fragmented Systems: Lack of interoperability between healthcare institutions

• Compliance Complexity: Meeting regulatory requirements across multiple jurisdictions

This decentralized application (dApp) transforms healthcare document workflows into a unified, patient-controlled ecosystem where:

• Patients maintain sovereignty over their medical information
• Documents are submitted once and shared securely across multiple institutions
• Cryptographic security ensures data integrity and privacy
• Smart contracts automate access control and audit trails
• Decentralized storage eliminates single points of failure
• Regulatory compliance is built into the architecture

India