CAIN-42 CAIN Studio

CAIN-42 evidence library

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

Evidence bundle for evolution E34: 8 claims, 627 of 627 invariants held.

Last reviewed 2026-10-01

Browse the raw bundle · How to reproduce it · SHA-256 manifest

Claims (8)

ClaimLevel
C42-E34-ENVELOPE: every executed governed operation yields one signed GovernanceProofEnvelope binding identity, capability, delegation, authority, policy, evidence, risk, decision, the E8 commit, the enforcement boundary, execution and outcome, with its unknowns listedTESTED
C42-E34-ENFORCEMENT: an enforcement proof distinguishes decision, authorization, commit, enforcement, execution and observed outcome; enforcement is never inferred from policy or intentTESTED
C42-E34-RECEIPTS: receipts form a tamper-evident chain, never grant authority, and a ProofCarryingAction is refused as authorityTESTED
C42-E34-DELEGATION: delegation proves attenuation link by link and never flows back upTESTED
C42-E34-EXCHANGE: governance proofs can be selectively disclosed to another party with salted per-field commitments and RFC 6962 Merkle inclusion, without exposing the restTESTED
C42-E34-BENCH: 2664 of 2664 scenarios across 32 categories held; 629 of 629 invariants; mutation 12 of 12TESTED
C42-E34-CLEANROOM: an independent verifier that imports none of CAIN re-derives every envelope, receipt, primitive and proof and rejects every crafted forgeryTESTED
C42-E34-HONEST-SCOPE: the governance cloud is NOT DEPLOYED; zero-knowledge proofs are not implemented; protocols are reference adapters; physical systems are refused, not governedTESTED

Invariants: 627 of 627 held

Rules the code must never break, each checked across many scenarios. See all 627 on one page.

NicheHeld
Benchmarks, coverage & performance195 of 195
Evidence, receipts & proofs124 of 124
Policy, law & governance93 of 93
Transactions, markets & economics43 of 43
Tools, MCP, protocols & adapters40 of 40
Trust & reputation39 of 39
Attacks, threats & containment31 of 31
Identity, authority & delegation20 of 20
Memory, data & privacy16 of 16
Supply chain, registry & lifecycle14 of 14
Prediction, world models & simulation12 of 12

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Your browser downloads the bundle's SHA256SUMS manifest and the file(s) behind this page, hashes them with SHA-256 locally (WebCrypto), and compares. A match shows the record you are reading is the published one; it does not by itself prove who published it (see the signed claims registry and the bundle verifier for that).

Known limitations

The bundle's own README

CAIN-42 Evolution 34 -- Proof-Carrying Machine Agency#

Every consequential governed operation can carry one signed, chained GovernanceProofEnvelope that states: this action was governed under these verified conditions -- and which parts are UNKNOWN, UNCONTROLLED, UNVERIFIED, SIMULATED or outside the boundary. A proof never creates authority. Verify with verify_e34.py.txt (see REPRODUCTION.md). Status: TESTED library, pre-production.

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