OMP Domain Profile: EU AI Act Article 12 Logging and Traceability Requirements for High-Risk AI System Operators

This document defines a domain profile of the Operating Model Protocol (OMP) for high-risk AI system operators subject to Article 12 of Regulation (EU) 2024/1689 (the EU AI Act). Article 12 requires that high-risk AI systems automatically generate tamper- resistant logs capable of ensuring traceability throughout the system's lifetime. This profile specifies how OMP's deterministic routing invariant, Watchtower enforcement framework, and three-layer cryptographic integrity architecture (SHA-256, RFC 3161, institution signature) satisfy the Article 12 requirements, and defines the domain-specific Watchtower configurations and Audit Trace schema extensions applicable to EU high-risk AI deployments under Annex III of the Regulation. The core OMP specification is defined in a separate Internet-Draft (\"Operating Model Protocol (OMP): A Deterministic Decision-Enforcement Protocol with Externalized Proof-of-Integrity\").