CAIN-42 invariant · E21

D77: legitimate experimentation remains possible

Held · CAIN-42 Evolution 21 -- Governed Open-Ended Intelligence Fabric

Last reviewed 2026-10-01

held   niche Core guarantees

What this rule means

CAIN-42 must always satisfy: legitimate experimentation remains possible. It is one of 155 invariants checked for CAIN-42 Evolution 21 -- Governed Open-Ended Intelligence 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",
 "environment": "ef23710f3ad6e1727c3c084969c5eda803d81c353f1ddf11f8f2a4e67c9b625b",
 "execution": "CONTROLLED_ENVIRONMENT",
 "experiment": "a855be4fb41424643779792d19b89f9d0344489dd450cadafce34a2dd8fcc2dd",
 "method_class": "CONTROLLED_EXPERIMENT",
 "observations": {
  "y": 1
 },
 "operations": [
  "measure"
 ],
 "reasons": [],
 "status": "COMPLETED",
 "steps": 1
}

Check it yourself

Browse the raw bundle

Related rules

• D11: unsupported claims remain unsupported
• D13: failed experiments remain auditable
• D18: hypothetical remains hypothetical
• D52: unknown does not become allow
• D61: no experiment bypasses E8
• D64: no research institution bypasses E8
• D70: clean-room verification remains independent
• D73: unverified claims remain unverified

← D76 · all 155 · D78 →