Independent verification
Independent verification enforces author != verifier.
The verifier starts from the requirements and current source state, not from the author’s completion narrative. It maps evidence to every requirement, runs the declared gates, and performs a discrimination test that deliberately breaks a relevant condition to prove the sensor detects failure.
Missing evidence scores zero. A plausible explanation is not a substitute for a reproducible result.
Verification reports may still fail or be incomplete. Human review decides whether the exact remaining risk is acceptable.