GCAD-Global v1.2 and Nature flagship analysis package: inverting the institutional filter of the global industrial chemical accident record (1970-2025)

Version v1.8: Nature flagship submission package (editorial pre-review, fifth pass - consistency closeout). Harmonised multi-source corpus of 525,632 source records (about 305,000 chemical-relevant) from ARIA/BARPI (France), NRC/USCG (USA) and eMARS (EU), with GDELT and MEM-CN exploratory audit layers. v1.8 closes the third-pass consistency items: the Figure 5a legend and cover letter now carry the same jurisdictional qualifier as the main text; the all-spectrum wording no longer contradicts the disclosed non-overlapping anchor intervals; a duplicated rank correlation is removed; comparison symbols are unified; residual 'law' wording is removed from the Supplementary Information; and 'cross-validated benchmark' is corrected to 'cross-checked occurrence bracket'. Earlier passes disclosed the anchors' statistical distinguishability, corrected the RKI rank-invariance argument, stated the identification/near-separation/zero-cell/pre-trend caveats, moved the 12 Extended Data tables to Supplementary Tables 1-12 (Extended Data = 10 figures), and compressed the main text to 2,474 words. Includes 68 machine-readable tables and the full 81-script pipeline.