SECURITY MODEL

Private limits stay private.
Authority stays human.

AccordOS separates model reasoning, deterministic authorization, and final human approval into distinct controls.

Fail-closed validation

Every candidate offer is untrusted until a pure deterministic function verifies each required parameter, numeric boundary, and exact term. Invalid or incomplete values cannot be transmitted.

Organization-bound encryption

Constraint profiles use AES-256-GCM encryption with keys derived for one organization. Using another organization’s identity causes authenticated decryption to fail.

Dual human approval

Convergence creates an agreed proposal, not a binding contract. One authorized person from each organization must approve the identical terms.

Privacy-preserving proof

A SHA-256 digest of the approved record can be placed in a Solana memo transaction. The public proof contains no commercial terms.

Honest MVP boundary

This demonstration does not replace legal review, electronic signature, identity assurance, or a production key-management service. Production use requires configured authentication, managed secrets, database isolation policies, monitoring, and counsel-approved terms.