A platform provides cryptographically sovereign, hardware-rooted identity and execution authority for federated AI in neurodegenerative diagnostics. Each instance is assigned a permanent sovereign identity token bound to a hardware security module (HSM). AI model weights are stored in an encrypted state and only decrypted within a Trusted Execution Environment (TEE) upon token validation. A predicate-driven fusion lattice aligns multimodal data (genomic, imaging, behavioral) and applies biological constraints at the hardware level. Remote revocation instantly renders the platform inoperable by purging ephemeral decryption keys, ensuring immutable governance and clinical safety.