Universal Reactivity - Elastic Critical State in Gravitational Waves - Supplementary Analysis of k From GW Energy

This PDF is a self‑contained supplement documenting methods, results, provenance, and interpretive notes for the posterior‑based revision of the dimensionless parameter k computed from gravitational‑wave energy estimates. It includes: a reproducible protocol for identifying events with fallback final‑mass values, extracting posterior samples from official PE. h5 files, computing Mfinal=median (m1+m2), and replacing fallback values in the working dataset; the formulas and constants used to convert published energy ratios into joules and to recompute k=EGW/ (f⋅τ) ; a per‑event comparison table showing kbefore, kafter, absolute and percent changes, and flags for manual review; provenance templates and logging recommendations to ensure traceability of each. h5 extraction (filename, dataset path, fields used, sample counts, timestamps) ; quality checks, limitations (dependence on PE release and waveform models), and recommendations for sensitivity analyses; a concise interpretive reflection that links the empirical existence and robustness of k to the hypothesis of spacetime behaving as a resonant medium, and an analogy to active noise cancellation offered as an intuition rather than a technical proposal. This document is intended to accompany the zipped supplement package (datasets, figures, provenance logs, and scripts) and to provide both the technical recipe for reproducibility and the contextual motivation behind the analysis.