CAIN-42 claim

C42-E24-AGENTIC-INTERNET

CAIN-42 governs agents from different organizations and trust domains as they discover, negotiate, contract, delegate, pay (simulated units) and act over A2A, MCP, HTTP, computer-use and nine other protocol classes: cross-domain authority is an intersection of ten factors, discovery/negotiation/contracts/reputation/payment/federation are never authority inputs, and every consequential action is judged by E24, then the E19 action contract, and committed by E8.

Last reviewed 2026-10-01

The claim

CAIN-42 governs agents from different organizations and trust domains as they discover, negotiate, contract, delegate, pay (simulated units) and act over A2A, MCP, HTTP, computer-use and nine other protocol classes: cross-domain authority is an intersection of ten factors, discovery/negotiation/contracts/reputation/payment/federation are never authority inputs, and every consequential action is judged by E24, then the E19 action contract, and committed by E8.

Level is how far the evidence goes: TESTED means a test suite exercised it, LIVE means it was observed on the hosted system. Nothing is claimed beyond its level.

Evidence files

• INVARIANTS
• ATTACK_RESULTS
• PROTOCOL_INTEROP_RESULTS
• CLEAN_ROOM_RESULTS

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From CAIN-42 Evolution 24 -- Governed Agentic Internet Fabric.