CAIN-42 invariant · E20

I82: Sybil issuers count once

Held · CAIN-42 Evolution 20 -- Governed Agentic Civilization Fabric

Last reviewed 2026-10-01

held   niche Attacks, threats & containment

What this rule means

CAIN-42 must always satisfy: Sybil issuers count once. It is one of 118 invariants checked for CAIN-42 Evolution 20 -- Governed Agentic Civilization Fabric. 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

{
 "authority": "NONE",
 "collusive_issuers": [],
 "confidence": 0.333333333,
 "digest": "9c5cbe9b69354155c7b74af0f19ce12fc90f6edf31c76e765e70c13c7d10f267",
 "distinct_controllers": 1,
 "reputation_is_not_authority": true,
 "score": 1.0,
 "state": "EVIDENCE_BACKED",
 "subject": "agent-q"
}

Check it yourself

Browse the raw bundle

Related rules

• I39: institutional emergency cannot create unlimited authority
• I92: lineage verifies and detects tampering
• I94: supply-chain substitution is detected per kind
• I95: capability injection is refused

← I81 · all 118 · I83 →