pi-framework: Reproducibility archive for retrospective cross-domain stress analysis

Reproducibility archive for the revised manuscript, “Retrospective cross-domain characterization of a multiplicative stress framework across five crisis episodes.” This archive contains the analysis code, frozen input data, deterministic outputs, golden verification baselines, supplementary analyses, and locked software-environment specification used for the revised study. This version corresponds to Git commit 95feb9fddbd6698bda74c2aec2e4eedca23d4fff. Source repository: https://github.com/Junwon03/pi-framework-nature The repository README provides instructions for reproducing and verifying the reported analyses. Revised primary outputs can be reproduced from the archived frozen inputs. Reconstructions requiring FRED/ALFRED use the fixed vintage date 2026-02-17. This version updates the reproducibility archive following methodological hardening and corrections to the Fukushima and Thailand analysis pipelines.