Medguardian

Project Overview
MedGuardian is a privacy-first clinical decision-support and care-coordination platform built for healthcare workflows where trust, privacy, and accountability matter.
The system transforms ongoing symptom updates into structured clinical context, allowing clinicians to review and validate the signal before routing overflow work through a professional care network that includes doctors, nurses, lab technicians, caregivers, and nutritionists.
The core problem MedGuardian addresses is that healthcare AI often breaks down in three critical areas:

• Patients do not trust where their data goes.
• Clinicians do not trust black-box AI recommendations.
• Healthcare teams cannot prove who accessed what data, when, why, and at what cost.
  MedGuardian is designed to make this entire process inspectable instead of opaque, enabling transparent and accountable healthcare workflows.
  Under the hood, Chainlink CRE orchestrates the workflow between the application, confidential summary retrieval, and blockchain writes. CRE is used to:
• Fetch protected clinical summary data
• Generate auditable receipts
• Anchor important workflow events on-chain
  Raw patient data remains off-chain by default to preserve privacy.
  In the demo, judges can observe the complete workflow loop within a single interface:
• Patient journey updates
• Doctor validation
• Agent-generated clinical brief
• CRE orchestration pipeline
• Professional network execution
• Receipt-backed cost telemetry

How It Is Built
Frontend

• Next.js + React dashboard
• One-screen clinical command center
• Includes Arc and Cost workspaces
• Right-side Clinical Console for real-time operations
  Backend
• Node.js / TypeScript
• Express server + Socket.IO
• Handles patient simulation, clinician workflows, access control, audit chaining, receipt storage, and CRE bridge routes
  Chainlink Integration
• TypeScript CRE workflows
• Uses HTTPCapability, ConfidentialHTTPClient, HTTP fallback, and EVMClient
• Connects protected health summaries to blockchain execution
  Smart Contracts
• Solidity contracts deployed on Sepolia
• Provide auditable request creation, report attestation, and access-control logic
  Proof Path
  A dedicated CRE CLI proof workflow is included for deterministic simulation evidence, alongside the app-integrated workflow path.