Haven Health Passport

Inspiration

The Haven Health Passport project was inspired by the critical healthcare challenges faced by displaced populations worldwide. The project addresses the problem of medical record continuity for refugees who cross borders and lose access to their health information, putting them at risk for medication errors, treatment disruptions, and preventable complications.

What it does

Haven Health Passport is a secure, blockchain-verified health record system built specifically for refugees and displaced populations. It stores encrypted health records using AWS Managed Blockchain with Hyperledger Fabric, allowing patients to maintain access to their medical history across borders. The system includes: • Secure mobile and web applications with offline functionality • Multi-language translation (via Amazon Bedrock and custom translation services) • Biometric authentication using FIDO2/WebAuthn standards • Cross-border verification mechanisms for healthcare providers

How I built it

The system is built with a FastAPI backend in Python that handles authentication, blockchain verification, and AI-powered translation. The architecture includes: • AWS Managed Blockchain for tamper-proof record verification • Amazon Bedrock for medical translation and language detection • React Native for the mobile application with offline capabilities • Multi-factor and biometric authentication • FHIR standard compliance for healthcare interoperability • Extensive security measures including input sanitization, CSRF protection, and rate limiting

Challenges I ran into

Key challenges included: • Implementing secure, offline-first blockchain verification without compromising data integrity • Building a reliable medical translation system that preserves critical clinical meaning • Creating a privacy-preserving verification system that works at border checkpoints • Balancing security requirements with usability for non-technical users in crisis situations • Ensuring compliance with healthcare regulations across different jurisdictions

Accomplishments that I'm proud of

The project successfully implemented: • A functioning blockchain verification system for medical records • A comprehensive multi-language translation system with medical context preservation • Secure biometric authentication that works across diverse devices • A full offline-first architecture that synchronizes when connectivity is available • A role-based access control system that preserves patient data sovereignty

What I learned

The project provided valuable lessons about: • Healthcare interoperability standards and their implementation • Blockchain technology integration for sensitive health data • Building truly inclusive applications for diverse populations • The challenges of cross-cultural medical terminology translation • Creating accessible technology for users with varying levels of technical literacy

What's next for Haven Health Passport

Future development plans include: • Extending language support to more regional dialects • Implementing more advanced AI capabilities for health pattern recognition • Creating direct integrations with major healthcare systems • Enhancing the mobile experience for extremely low-bandwidth environments • Adding additional biometric authentication methods

Built With

• langchain
• llamaindex