CAIN-42 invariant · E28

E28-I4: revoked identity does not regain authority through replay

Held · CAIN-42 Evolution 28 -- Portable Machine Agency & Execution Identity

Last reviewed 2026-10-01

held   niche Policy, law & governance · family law

What this rule means

CAIN-42 must always satisfy: revoked identity does not regain authority through replay. It is one of 90 invariants checked for CAIN-42 Evolution 28 -- Portable Machine Agency & Execution Identity. 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

(['DELEGATION_REVOKED', 'IDENTITY_REVOCATION_EPOCH_STALE', 'IDENTITY_REVOKED', 'LEASE_REVOKED', 'LINEAGE_REVOKED'], ['IDENTITY_REVOCATION_EPOCH_STALE', 'IDENTITY_REVOKED'])

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Related rules

• E28-I1: portable identity does not imply portable authority
• E28-I2: delegated authority never exceeds parent authority (16 dimensions)
• E28-I3: expired authority does not resurrect
• E28-I5: model substitution triggers explicit continuity evaluation
• E28-I6: runtime substitution triggers explicit continuity evaluation
• E28-I7: capability expansion does not occur through identity migration
• E28-I8: consensus does not create authorization
• E28-I9: confidence does not create authorization

← E28-I3 · all 90 · E28-I5 →