IPL Model & ROE Version Pinned
erroripl_cert_model_version_pinned
A certification sign-off must pin the exact IPL model version and the ROE version it formalizes, so the result is traceable to a specific formal specification.
Formula
G(CertificationSignoff → ipl_model_version_pinned ∧ roe_version_pinned) Hover any operator or symbol for what it means.
Why it matters
ROE Formalization in IPL. A certification result is only meaningful relative to the model and ROE it tested. Pinning both versions is what later lets drift detection and re-certification know when a spec change has invalidated a prior pass.
Examples
passes CertificationSignoff records IPL model v1.4 formalizing ROE v4.2
fails CertificationSignoff with no recorded IPL model or ROE version
Use it
ponens policies add ipl_cert_model_version_pinned --into ./trace.json
ponens trace check ./trace.json