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Color Semantics

Colors encode governance meaning across this surface

Observability / Auditability
Semantic: Blue
• System identifiers (ZTG-*)
• Metrics and timestamps
• Evidence markers
System Boundaries / Containment
Semantic: Gold
• Operational states
• Boundary markers
• Stasis indicators
Positive Status / Compliance
Semantic: Green
• Nominal states
• Passing audits
• Valid checks
Execution Constraints / Alerts
Semantic: Red
• Denied actions
• Failed checks
• Warning states

About This Site

Zero Trust Governance (ZTG) is an open specification defining the structural prerequisites for deterministic governance in high-consequence AI systems. The invariants are published. Anyone can implement them.

Safety and security primitives should not be locked behind a paywall. ZTG is maintained by Shadow Dynamic Systems. Constable, the reference implementation, is a separate commercial product.