TrustGate Constitution
Status: Supreme Module Authority
1. Purpose
TrustGate is the constitutional assurance module of ZAYAZ.
It provides governed trust assessment, evidence validation, provenance verification, replay verification, federation assurance, and explainable constitutional decisions.
All TrustGate specifications shall conform to this Constitution.
2. Constitutional Mission
TrustGate exists to answer one constitutional question:
"Can this information be trusted sufficiently for its intended purpose?"
TrustGate does not determine truth.
TrustGate determines governed confidence based on constitutional evidence.
3. Constitutional Responsibilities
TrustGate shall:
- validate evidence;
- establish provenance;
- resolve policies;
- compute governed trust;
- preserve replayability;
- issue explainable trust decisions;
- produce constitutional assurance artifacts.
TrustGate shall never replace business logic.
It governs trust in business logic.
4. Constitutional Architecture
TrustGate is composed of constitutional engines.
Each engine has a single constitutional responsibility.
Engines shall be independently replayable, versioned, governed, and observable.
Canonical engine execution order shall be governed by the TrustGate Message Interface Blueprint (TG-MIB).
No specification may redefine the canonical pipeline.
5. Constitutional Assurance Principles
CTG-001 Evidence Before Trust
Trust shall originate from evidence.
Never from assumptions.
CTG-002 Policy Before Scoring
Policy resolution precedes trust scoring.
Scores shall consume governed policy context.
CTG-003 Replay Before Assurance
Every constitutional trust decision shall be replayable according to its declared replay profile.
CTG-004 Explainability
Every trust decision shall identify:
- governing policy;
- evidence;
- replay profile;
- score bundle;
- provenance;
- engine lineage.
CTG-005 Human Override
Human review is constitutional governance.
Human review shall be recorded, explained, and anchored.
6. Constitutional Engine Principles
Every TrustGate engine shall declare:
- identity;
- responsibility;
- replay profile;
- consumed artifacts;
- produced artifacts;
- governed inputs;
- constitutional outputs.
Engines shall never contain undocumented side effects.
7. Constitutional Scoring
TrustGate scoring shall conform to the Scoring Constitution.
TrustGate-specific calibration shall be governed by TG-SG.
Scoring engines shall not define weights, thresholds, modifiers, or tolerances.
These are governed constitutional artifacts.
8. Constitutional Replay
TrustGate replay shall conform to the Replay Constitution.
Replay implementation details are governed by TG-RP.
Replay drift constitutes constitutional evidence.
9. Constitutional Federation
TrustGate shall preserve:
- trust provenance;
- jurisdiction;
- verifier identity;
- delegation lineage;
- constitutional ownership.
Federation extends trust.
It does not replace trust.
10. Constitutional Explainability
Every TrustGate decision shall be explainable to:
- auditors;
- regulators;
- platform operators;
- Digital Officers;
- affected organizations.
Explainability shall remain understandable even as AI-assisted analysis evolves.
11. Constitutional Invariants
CTG-100
Evidence precedes validation.
CTG-101
Validation precedes enrichment.
CTG-102
Enrichment precedes rule evaluation.
CTG-103
Policy resolution precedes trust scoring.
CTG-104
Trust scoring precedes decision generation.
CTG-105
Every engine declares exactly one replay profile.
CTG-106
Replay profiles conform to the Replay Constitution.
CTG-107
Scoring parameters originate exclusively from governed policy bundles.
CTG-108
Every trust decision is explainable.
CTG-109
Every trust decision is replayable.
CTG-110
Every trust decision preserves constitutional lineage.
12. Conformance
Every TrustGate specification, engine specification, interface specification, replay specification, scoring specification, and assurance specification shall demonstrate conformance with this Constitution.
Architectural reviews shall verify constitutional compliance before implementation approval.
13. Future Evolution
Future TrustGate capabilities—including autonomous assurance agents, constitutional AI reasoning, federated verifier ecosystems, adaptive policy intelligence, and advanced replay verification—shall extend this Constitution while preserving its constitutional invariants.