Appendix B

SPEC‑CEI‑1.0 — Constitutional Execution Infrastructure Specification

This appendix defines a normative specification for Constitutional Execution Infrastructure (CEI). It establishes requirements that implementations should follow to provide consistent governance behavior.

Normative keywords are interpreted as follows: MUST = mandatory, SHOULD = recommended, MAY = optional.

1. Scope

The specification defines the minimum behavioral requirements for runtime governance, authority evaluation, admissibility, immutable evidence, replay, and execution control.

2. Core Constitutional Invariants

ID	Invariant
CI-001	A consequential action MUST NOT execute without a governance decision.
CI-002	Authority MUST be evaluated before execution.
CI-003	Evidence MUST be traceable to the governing decision.
CI-004	Every executed action MUST generate an immutable ledger record.
CI-005	Replay MUST reconstruct execution deterministically from recorded events.
CI-006	Policy versions SHOULD be identifiable and auditable.

3. Runtime Requirements

The runtime MUST authenticate the requesting identity.
The runtime MUST resolve delegated authority.
The runtime MUST evaluate applicable governance policies.
The runtime MUST return an explicit decision (GO, DENY, PAUSE, ESCALATE, or OVERRIDE).
The runtime SHOULD expose decision metadata for auditing.

4. Authority Requirements

Identity
   ↓
Delegation
   ↓
Authority Validation
   ↓
Decision Eligibility

5. Evidence Requirements

Evidence MUST be uniquely identifiable.
Evidence SHOULD include provenance metadata.
Evidence MUST remain associated with its governing decision.
Evidence integrity SHOULD be verifiable.

6. Ledger Requirements

Records MUST be append-only.
Each record SHOULD reference the previous record or equivalent integrity mechanism.
Ledger entries SHOULD preserve timestamps, identities, and decision identifiers.

7. Replay Requirements

Replay MUST reconstruct execution order.
Replay SHOULD detect missing or inconsistent events.
Replay MAY rebuild projections from immutable history.

8. Compliance Checklist

Requirement	Status
Governed execution	Required
Authority validation	Required
Evidence traceability	Required
Immutable ledger	Required
Deterministic replay	Required
Projection rebuilding	Recommended

Specification Summary

SPEC‑CEI‑1.0 defines a portable constitutional baseline. Implementations may extend the model, but they should preserve its invariants to maintain consistent governed execution.

Next: Appendix C — Formal Runtime State Machine.

Engineering Evidence

Evidence and verification layer

This document forms part of the CEI publication record. Supporting evidence is organized through the engineering-evidence archive, specifications, architecture documentation and replay verification materials.

Evidence methodology Repository landscape CEI specification Replay verification Architecture map

Document: CEI_Book_Appendix_B_SPEC_CEI_1_0.html
Edition: First Public Edition
Version: 1.1