Informational Curvature Theory Paper II - The Informational Rubric Formal Definition & Structure

Abstract Informational Curvature Theory (ICT) proposes that observable structure across domains is constrained by the organisation of information itself. While prior work introduced informational curvature conceptually, a precise operational formalism is required for systematic application. This paper presents the informational rubric, defined through four coordinated dimensions—entropy gradient (α), modal coherence (β), boundedness (γ), and relational resonance (δ). These components are consolidated from earlier formal developments and reintroduced here as a closed, domain-agnostic informational operator. The rubric constrains admissible structure without prescribing dynamics or modifying existing physical laws. This work establishes the formal core upon which subsequent empirical, instrumental, and theoretical extensions of ICT are built.