SCFL: A Point‑and‑Measure Infrastructure for Detecting Structural Coherence Loss in Engineering and Manufacturing Systems

This announcement establishes SCFL (Standard Coherence Fidelity Layer) as operational measurement infrastructure for detecting structural coherence loss before visible system failure. The document presents two forms of evidence: (1) retrospective validation on ERCOT December 2020 pre-failure data showing 6–8 week precursor window, and (2) live real-time operational measurement from April 2026 ERCOT grid stress event demonstrating real-time state classification and rupture envelope detection. Core claim: SCFL is neither an academic framework requiring publication-grade validation nor a commercial product requiring deployment proof. It is measurement infrastructure that proves itself through operational deployment. Three independent domain reconstructions (ERCOT energy infrastructure, Samsung Electronics power quality and yield management, Boeing aerospace supply chain) establish that the same coherence-loss geometry can be measured across structurally unrelated systems. Technical foundation: SCFL v1. 0 operator computes structural faithfulness of the transduction mapping Fₜ: (Iₜ, İₜ, Uₜ) → (Xₜ, Ẋₜ) across five distortion components (state deviation, velocity deviation, load-response mismatch, coupling deformation, dissipation/irreversibility). Three operational telemetry forms are presented: Φₗatent (seam-displacement, σ-units, retrospective), coherence-ratio triple (percentage/minutes/%, real-time operations), and canonical CDI ∈ 0, 1 (cross-domain specification). Deployment model: SCFL can be tested in one Sprint with zero system modification (monitoring-only mode). No control integration required. 3-month pilot pipeline: intake/baseline (weeks 1–3), data integration/CDI computation (weeks 4–6), monitoring period (weeks 7–12), results/case study (weeks 13–16).