Purpose and Scope This record hosts the URT Experimental Interpretation Ledger, a living document that provides a structured, non-derivational interface between contemporary empirical results and the Unified Recursion Theory (URT) framework. The ledger does not modify, validate, falsify, or extend URT. All theoretical claims remain defined exclusively by the URT paper family. This document serves only to catalog and interpret how selected experimental and observational results relate to URT at a conceptual level. How to Read the Ledger Each ledger entry is organized into five standardized sections (A–E): A. What the Result Establishes — A strictly empirical summary of the cited result, without interpretation. B. What Remains Unresolved in Standard Frameworks — Explicit identification of open questions, degeneracies, or explanatory gaps acknowledged in the literature. C. URT Interpretation — A conceptual interpretation of the result within the URT framework. This section is explicitly non-derivational and non-predictive. D. What URT Does Not Claim — Explicit statements of scope limitation, clarifying what URT does not assert or infer from the cited result. E. Implications for URT — A brief statement describing whether the result is consistent with, neutral to, or potentially constraining for URT, without evaluative language. Governance and Versioning This ledger is a living, append-only document. Entries are never deleted or rewritten. Interpretive changes are recorded only through new entries. Versioning is managed through Zenodo, with a changelog documenting additions. The ledger is interpretive only and should not be cited as experimental evidence or theoretical validation. Experimental Interpretation Ledger — Scope Update Recent experimental and theoretical work on quantum-metric–dominated electronic transport highlights how geometric properties of state space can directly constrain physical response, independent of topology or specific interaction mechanisms. While fully contained within standard condensed-matter physics, such results are conceptually compatible with URT’s broader view that geometry reflects constraints on admissible informational updates rather than serving as a purely descriptive construct. These studies are noted here as interpretive points of contact only; they do not constitute validation, derivation, or extension of the URT formalism.