did:health is a cutting-edge decentralized identity solution designed specifically for the healthcare industry. Built on W3C DID standards, it provides a secure, privacy-preserving infrastructure for managing healthcare data and identity verification. The platform leverages blockchain technology and IPFS to create a tamper-proof, decentralized ecosystem for healthcare data management.

• W3C DID Compliance: Fully compliant with W3C Decentralized Identifier specifications
• Multi-Chain Support: Supports Bitcoin, Ethereum, and EVM-compatible chains
• Bitcoin Integration: Native support for BTC wallet-based DIDs
• User-Centric Control: Complete user control over identity and associated healthcare data

• FHIR Standard Support: Full integration with Fast Healthcare Interoperability Resources (FHIR) standards that works with all Electronic Health Record (EHR) systems
• IPFS Storage: Decentralized and tamper-proof storage of healthcare data
• Cross-Chain Compatibility: Seamless data flow across different blockchain networks
• Multi-Language Support: Comprehensive localization support for healthcare resources

• Frontend: React-based user interface with modern UI/UX design
• Blockchain Integration:
  • Bitcoin (BTC)
  • Ethereum (ETH)
  • EVM-compatible chains
  • Coming soon: Solana, Cosmos
• Data Storage: IPFS for immutable healthcare data storage
• Cryptography: Secure identity verification using ECDSA and threshold cryptography
• Lit Protocol: Integration for encrypted FHIR data access

• DID Document: The central component stored on IPFS
  • Contains FHIR endpoints and access control metadata
  • Acts as a resolver for all DID-related FHIR resources
  • Immutable storage of healthcare data references
  • QR code generation for easy data access

• Bitcoin (BTC):

  • Ordinals inscriptions for DID registration
  • Immutable storage of DID metadata
  • Bitcoin wallet-based identity verification
  • Native DID format support: did:health:btc:<wallet>

• Ethereum (ETH):

  • Solidity-based Health DID Registry contract
  • Smart contract verification of DID ownership
  • ENS integration for human-readable DIDs
  • DID format: did:health:<chainId>:<name>

• Practitioner & Organization Access:
  • DAO membership for healthcare professionals
  • Organization verification through DID
  • Role-based access control
  • Reputation scoring system

• QR Code Scanner:

  • DID document QR code generation
  • Secure scanning of patient DIDs
  • Quick access to FHIR endpoints
  • Zero-knowledge proof verification

• Secure Messaging Integration:

  • Quick permission requests via QR scan
  • Access control condition requests
  • Secure message-based permission workflows
  • Audit trail of access requests

• Frontend: React, TypeScript
• Blockchain:
  • Bitcoin (BTC) - Native DID support
  • Ethereum (ETH) - Mainnet and testnets
  • Polygon (MATIC) - Mainnet and testnets
  • Gnosis Chain - Mainnet and testnets
  • Arbitrum - Mainnet and testnets
  • Scroll - Mainnet and testnets
  • Coming soon: Solana and Cosmos integration
• Storage: IPFS
• Cryptography: ECDSA, Threshold Cryptography
• Localization: JSON-based multi-language support

• End-to-End Encryption: All FHIR resources are encrypted using Lit Protocol's threshold cryptography
• Access Control: Fine-grained access control through Lit Access Control Lists (ACLs)
  • DID-based access control
  • Role-based access control
  • Time-based access control
• Decentralized Key Management: Secure key management using threshold cryptography
• Multi-Party Computation: Secure decryption requires collaboration between multiple parties
• Zero-Knowledge Proofs: Verifies access rights without revealing sensitive information

• Healthcare Provider Access: Secure sharing of medical records with authorized providers
• Patient Control: Patients maintain full control over their data access
• Audit Logging: Comprehensive logs of all access attempts and successful decryptions
• Revocation: Ability to revoke access at any time
• Time-Limited Access: Temporary access grants for specific time periods

• End-to-End Encryption:
  • XMTP for secure messaging transport
  • Lit Protocol for message encryption and access control
  • IPFS for decentralized message storage
• Secure Communication Flow:
  • Messages encrypted with Lit Protocol before storage
  • Stored on IPFS for decentralized persistence
  • Sent via XMTP for secure delivery
• Access Control:
  • Lit Protocol ACLs for message access
  • DID-based authentication
  • Role-based access control
• Security Features:
  • Zero-knowledge proofs for access verification
  • Multi-party computation for decryption
  • Audit trail of message access
• Decentralized Storage:
  • IPFS for immutable message storage
  • Content-addressable message retrieval
  • Tamper-proof message history

# Clone the repository
git clone https://github.com/did-health/did-health.git

cd did-health

# Install dependencies
yarn install

# Build the project
yarn build

# Start the development server
yarn dev

1. DID Resolution:

   • Support for multiple DID formats:
     • Bitcoin: did:health:btc:<wallet>
     • EVM chains: did:health:<chainId>:<name>
   • Real-time DID verification and resolution
   • View associated healthcare data and credentials
   • Verify identity ownership and reputation

2. FHIR Resource Management:

   • Store and retrieve healthcare data in FHIR format
   • Encrypted data access through Lit Protocol
   • View and manage healthcare resources through IPFS
   • Access localized healthcare information

3. Blockchain Integration:

   • Connect to supported blockchain networks
   • Perform secure identity operations
   • Manage healthcare data transactions
   • Coming soon: Solana and Cosmos integration

• Ethereum: Mainnet and testnets
• Polygon: Mainnet and testnets
• Gnosis Chain: Mainnet and testnets
• Arbitrum: Mainnet and testnets
• Scroll: Mainnet and testnets

• Uses first two hex characters after did:health: to identify blockchain
• Dynamic resolver system for cross-chain compatibility
• Secure identity verification using ECDSA
• IPFS integration for data storage

• Full support for FHIR R4 standard
• IPFS-based storage for FHIR resources
• Multi-language support for healthcare resources
• Secure data access and management

We welcome contributions from the community! Please read our CONTRIBUTING.md guide for more details on how to get started.

This project is licensed under the MIT License. See LICENSE for details.

For support, please:

• Open an issue in the GitHub repository
• Join our community discussion channels
• Review our documentation and examples

If you discover any security vulnerabilities, please contact our security team directly.

• Special thanks to the W3C DID Working Group
• Acknowledgment to the healthcare interoperability community
• Recognition to our contributors and supporters

For more information, please contact:

• Email: contact@did-health.org
• Website: did-health.org