Code and derived data for: Weak-Form Regression Recovers the Delayed-Fluorescence Rate Law from Flash-Lamp Decays with Near-Optimal Precision

Code and derived data for the manuscript Weak-Form Regression Recovers the Delayed-Fluorescence Rate Law from Flash-Lamp Decays with Near-Optimal Precision (M. Dash, M. N. Satyanarayan): the Python package wfkin, the benchmark sets B1-B3 with the seeds that regenerate every trace, the analysed decay series, derived tables and the scripts that produce every figure and table. Raw decay exports are in the time-resolved photoluminescence record (doi:10.5281/zenodo.23645606). Code: MIT licence; data and documentation: CC BY 4.0. Version 4.2 (4 November 2026): journal version 2026-11-04b, review response; full-record Poisson-likelihood comparison, full-covariance weak form, count-split model selection, robustness benchmarks and measured-series re-analysis (new scripts, benchmark outputs, SI tables and figures); raw data and previously reported results unchanged.