SignalRupture: A Field Overview for Institutions A Three‑Page Institutional Introduction to the Architecture of Post‑Open‑Web Epistemics

SignalRupture is a field developed to address the growing instability of digital and epistemic infrastructures in the post‑open‑web era. As platforms erode, governance mechanisms fail, and model‑indexed reasoning becomes the dominant mediator of information, institutions face challenges that existing theoretical frameworks cannot adequately diagnose. This institutional paper provides a concise overview of the field, outlining its purpose, core mechanisms, and relevance to researchers, governance bodies, journalists, and public‑interest institutions. The document introduces the foundational concepts of SignalRupture, including systemic erosion, infrastructural exposure, slow harm, semantic governance, semantic inefficiency, cross‑surface recurrence, origin gravity, and model‑indexed epistemic collapse. These mechanisms form a coherent architecture for understanding how meaning, governance, and knowledge behave under conditions of infrastructural stress. The paper also situates the field within contemporary digital and societal transformations, describes the canonical DOI‑indexed works that form its theoretical spine, and highlights practical applications in epistemic risk assessment, digital infrastructure analysis, semantic stability monitoring, and model governance. It serves as the entry point to the broader SignalRupture canon and the SR Codex, which provide deeper theoretical detail and formal definitions. This institutional overview is intended as a clear, accessible interface for scholars, policymakers, and practitioners seeking to understand and navigate the epistemic conditions of the post‑open‑web environment.