Cathedral-OS / AOAG HAASA v2.0 Technical Handoff Package High-Assurance Governance Architecture for Autonomous Systems

Abstract Cathedral-OS is a prototype governance architecture for autonomous agent operations in high-consequence environments. The system combines hardware-timed safety interlocks, software-level tri-state consensus, cryptographic auditability, and formal verification scaffolding to reduce unsafe execution pathways and preserve recoverable system state. This handoff package documents the current implementation surface, artifact registry, operational procedures, verification methodology, and bounded-state simulation outputs. Implemented components include a 670 μs hardware safety window via a Deterministic Safety Interlock (Verilog), tri-state decision logic via a Tri-State Quorum Controller (Python), authenticated state-transition signing via HMAC-SHA256, and append-only auditability via an Append-Only Audit Ledger (SHA-256 Merkle structure). Lean 4 theorem stubs are included to define the intended proof surface for bounded state-transition behavior.