Jurisdiction and Scope of Conditional Unlocking Fields (CUF)

This preprint provides a formal clarification of the jurisdiction and scope of the Conditional Unlocking Fields (CUF) framework following recent analysis of resolution-induced reachability failures in formal and engineered systems. CUF was developed to describe identity persistence and regime transitions in systems undergoing unavoidable update under constraint. It has been successfully applied across natural physical processes, biological systems, and selected engineered systems. The present document does not revise, correct, or supersede the CUF Canonical Standards or any prior CUF derivations. Instead, this work makes explicit a boundary that was previously implicit. CUF governs systems in which admissibility, resolution, and update dynamics are intrinsically coupled, such that persistence emerges only when viable transition structure exists. All natural systems satisfy these conditions. Certain engineered systems also satisfy them, particularly those whose resolution and admissibility are inseparable from their physical or operational implementation. Recent analysis has isolated a class of resolution-induced reachability obstructions that arise exclusively in non-natural systems where admissibility, reachability, and finite resolution are externally imposed and enforced. In such systems, states may be declared admissible and symbolically reachable while all admissible operational corridors collapse under the imposed resolution, yet the state is nevertheless produced. These obstructions represent failure modes of forced formalization and enforcement, not failures of natural persistence. This clarification establishes that CUF does not claim to govern persistence that is externally declared or enforced under imposed representational resolution. The discovery of these obstructions refines CUF’s scope without weakening its core claims or invalidating any existing CUF results concerning natural phenomena. This document serves as a non-canonical governance note intended to guide interpretation of the CUF corpus going forward and to distinguish CUF-governed systems from adjacent classes of formal or engineered frameworks exhibiting forced reachability failures.