Prior Publication Notice: Conceptual Precedence of CXC-7, CXOD-7, USCH, and USCI Frameworks Relative to arXiv:2603.16567

This document constitutes a formal prior art notice establishing that four publicly deposited frameworks — CXOD-7 and Coh(G) (Zenodo, October 2025; DOI: 10.5281/zenodo.17403793), CXC-7 (Zenodo, October 2025 / February 2026; DOI: 10.5281/zenodo.18615646), User-Side Contextual Hallucination in Human-AI Interaction / USCH (SSRN, February 5, 2026; DOI: 10.2139/ssrn.6135732), and USCI Methodology Specification (Zenodo, February 2026; DOI: 10.5281/zenodo.18678458) — were publicly deposited with verifiable DOI timestamps prior to the arXiv submission of 'Characterizing Delusional Spirals through Human-LLM Chat Logs' (Moore et al., arXiv:2603.16567v1, March 17, 2026; to appear at ACM FAccT 2026). The notice documents six specific points of conceptual overlap and explicitly acknowledges the independent empirical contributions of Moore et al. This notice is issued for scholarly record purposes and does not constitute a legal claim.