CAIN-42 invariant · E34

E34-CAT-receipt_chain: every receipt_chain scenario holds

Held · CAIN-42 Evolution 34 -- Proof-Carrying Machine Agency

Last reviewed 2026-10-01

held   niche Benchmarks, coverage & performance · family bench_category

What this rule means

CAIN-42 must always satisfy: every receipt_chain scenario holds. It is one of 627 invariants checked for CAIN-42 Evolution 34 -- Proof-Carrying Machine Agency. An invariant is a rule the system may never break, whatever an agent or attacker does; the test suite tries to break it across many scenarios and records the result.

Recorded detail

{'scenarios': 86, 'not_held': []}

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Check it yourself

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Related rules

• E34-COVCLASS-ENFORCED: coverage class ENFORCED exists and is never auto-universal
• E34-COVCLASS-MONITORED: coverage class MONITORED exists and is never auto-universal
• E34-COVCLASS-OBSERVED: coverage class OBSERVED exists and is never auto-universal
• E34-COVCLASS-PARTIALLY_ENFORCED: coverage class PARTIALLY_ENFORCED exists and is never auto-universal
• E34-COVCLASS-BYPASSABLE: coverage class BYPASSABLE exists and is never auto-universal
• E34-COVCLASS-UNCONTROLLED: coverage class UNCONTROLLED exists and is never auto-universal
• E34-COVCLASS-UNKNOWN: coverage class UNKNOWN exists and is never auto-universal
• E34-SURFACE-mcp: surface mcp states its real class and basis

← E34-CAT-status · all 627 · E34-CAT-delegation_proof →