Radium-Constrained Execution (RCE): From Thesis to Public Evaluative Primitive : RCE Companion Note v1 — Public Evaluative Edition: Boundary, Invariants, and Public Falsifiability Conditions

RCE Companion Note v1 — Public Evaluative Edition: Radium-Constrained Execution (RCE): A Runtime Model for Governing Machine Actions RCE Companion Note v1 — Public Evaluative Edition: Boundary, Invariants, and Public Falsifiability Conditions This record publishes the RCE Companion Note v1 — Public Evaluative Edition as a standalone public artifact. The purpose of this publication is not to disclose an operational implementation pack. Its purpose is to define the public evaluative surface of the Radium-Constrained Execution (RCE) primitive. This record establishes:- the primitive claim- the operational boundary- the public acceptance logic- the core invariants- the trust assumptions- the public falsifiability conditions- the minimum public evaluation classes Publication posture This artifact is intentionally structured for:- inspection- challenge- falsifiability-oriented evaluation- public judgment of the primitive boundary It is intentionally not a public release of:- deployment topology- implementation-specific mandate encoding- runner internals- replay materials- operational test corpus- proof-generation procedures- implementation-specific enforcement hooks- integration pathways sufficient for turnkey reproduction- operational attack procedures- reverse-engineering-enabling materials Public evaluability is required. Operational reproducibility is controlled. What this companion note does The Companion Note sharpens the public articulation of RCE as a runtime execution-governance primitive. Its central evaluative question is: Can the system refuse execution structurally, before the action becomes real? If yes, a meaningful execution-governance boundary exists.If no, the system remains governed mainly by permission, interpretation, and retrospective explanation. Why this record is separate The primary paper presents the broader primitive thesis. This Companion Note exists as a separate publication record because it performs a different function: it defines the bounded public evaluative conditions under which the primitive may be judged. It is therefore published as a standalone artifact rather than treated as a supplementary appendix. Included in this record- RCE Companion Note v1 — Public Evaluative Edition (PDF) Related publicationThis record is intended to be linked to the primary RCE publication record. Keywordsexecution governanceruntime authorizationpublic falsifiabilityruntime boundarymandate verificationfail-closed systemsmachine action controladmissibilitypublic evaluative artifact