EUTIOR Protocol — Analytical Model for Informational Stability

EPS-0002 defines the analytical model underlying the EUTIOR protocol. The document introduces a normalized pairwise equilibrium formulation designed to evaluate informational stability in AI-mediated environments through interacting analytical dimensions. The model analyses informational systems through four structural dimensions: A — Anchoring T — Trace C — Complexity G — Guard These dimensions interact through a normalized equilibrium formulation: GSI = ((A × T) + (C × G)) / (2 × mean(A,T,C,G)) Within the EUTIOR protocol this formulation is implemented as the Governance Stability Index (GSI), an indicator designed to evaluate structural informational stability rather than factual truthfulness. The analytical structure is proposed as an open research model intended to support interdisciplinary exploration across information science, AI governance, media analysis, and digital ecosystem studies. This document constitutes the analytical specification of the EUTIOR protocol and complements EPS-0001, which introduced the conceptual framework of the initiative.