Rapha Protocol is a zero-trust, compute-to-data edge network for clinical AI. Instead of exporting raw patient records and risking massive GDPR/HIPAA liabilities, Rapha routes AI models into air-gapped hardware enclaves directly inside hospital server rooms. Models train locally, and only anonymized weights leave. Key features include Intel SGX/TDX isolation, Policy-as-Code compliance enforcement, and immutable Zero-Knowledge (ZK-SNARK) audit receipts anchored on Polygon Mainnet.