Upstream Coherence Regime-State Infrastructure Layer: A Unified State-Space for Actuarial Science

This paper defines the Upstream Coherence Regime-State Infrastructure Layer (UCMS): a foundational measurement and representation system that operates prior to event identification, independent of any actuarial model, representing system behavior as a continuous regime-state process P(t). The layer formalizes a canonical operator suite — Coherence Operators (ΔG, CDI), Fidelity Operators (∇F), Ripple Operators (R, M, Cᵣ), and Substrate Operators S = (E, G, C) — that together constitute a deterministic update rule for P(t). Actuarial models, enterprise risk functions, and operational systems are reframed as state-conditioned estimators operating on this shared substrate.SCFL (Standard Coherence Fidelity Layer) provides the infrastructural analogue of the atmosphere: P(t) is the evolving state of that atmosphere; actuarial and financial models function as conditional estimators over P(t), analogous to weather forecast models operating over atmospheric state fields. This is not a competing framework — it is the missing Layer 0 substrate beneath existing actuarial tools.The paper positions the infrastructure against established frameworks: statistical regime-switching models (Hamilton 1989; Diebold-Rudebusch 1996), catastrophe models (RMS, AIR), network contagion approaches (BIS CGFS; Acemoglu et al. 2015), and resilience engineering (Hollnagel FRAM). In each case, UCMS provides the upstream state conditions under which existing tools become more stable, explainable, and forward-looking.Retrospective trajectory-level validation is presented for the February 2021 Texas Grid failure, demonstrating that the SCFL framework assigns a CRITICAL regime state approximately 72 hours before observable loss expression onset, with the regime sequence STABLE → WATCH → ELEVATED → CRITICAL → BREACH consistent with the upstream signal chronology in the public record. A pre-specified Tier-2 evaluation framework locks all operator-level thresholds, metrics, and analytical decisions in advance, preserving a clean separation between protocol definition and result reporting.The manuscript comprises five parts: (I) The Infrastructure Layer, (II) Canonical Operator Suite, (III) Implications at a Glance, (IV) Lineage and Convergence, and (V) Retrospective Validation and Prospective Protocol. A full reference section engages external actuarial, regime-switching, systemic risk, resilience engineering, and model risk management literature. Appendix A provides a UCMS-to-actuarial operator mapping table and a canonical open/proprietary layer separation table.The open-source reference implementation and pre-specified ERCOT Tier-2 validation scripts are publicly available at: https://github.com/ronbrogdon-del/UCMS-Operator-SuiteSCFL operators (ΔG, CDI, ∇F, R, M, Cᵣ, S) and the canonical update rule are open standard artifacts. Execution substrates and valuation layers are governed separately. The Incorporation Interface (DOI: 10.5281/zenodo.19290603) enables SCFL-compliant third-party observatory development at no charge.Companion papers: When Coherence Becomes Measurable (10.5281/zenodo.19299574) · SCFL as Cross-Domain Measurement Infrastructure (10.5281/zenodo.19290603) · The Rupture Atlas (10.5281/zenodo.19036468) · GCM Observatory V1–V3 (10.5281/zenodo.18931019)