Hydrogen supply readiness in integrated energy systems: local registration records, frozen V70 validation outputs and post-hoc analyses

This record archives the supporting research materials for study V70 on hydrogen supply readiness in an electricity–heat–gas–hydrogen integrated energy system. The collection contains seven categories: (1) locally frozen protocols and registered predictions P0–P7; (2) the frozen analysis specification, script and table/figure template; (3) all original registered-analysis outputs; (4) post-hoc diagnostics of stopped groups; (5) figure-authoring scripts and saved inputs/outputs; (6) newly generated exact-arithmetic checks; and (7) explicitly identified post-hoc analyses supporting the supplementary material. According to the preserved local records, the initial protocol was frozen on 18 October 2026, before validation execution began on 19 October. The analysis specification was locally hash-registered on 22 October during execution. The frozen analysis was run once on 23 October after all 58 groups reached a protocol terminal state: 43 complete groups, 15 stopped groups, 1963 accepted logical hours and 125 unexecuted suffix hours. All 23 original registered-analysis output files are preserved. This public deposit post-dates the start of validation execution. The earlier timestamps and hashes are local records and do not constitute an externally time-stamped public preregistration. Category 6 is explicitly labelled “Regenerated in November 2026; original files not located”. New exact-rational calculations reconstruct 64 numerical entries in Supplementary Tables S4–S5: 55 agree at the original display precision, while nine small display differences are documented without changing the manuscript tables. A separate computational implementation agrees with all 64 exact values. With fixed seed 20261102, 3000 feasible hydrogen-subsystem trajectories were checked across three operating modes and two ramp settings; none had shortage below the bound. This finite check is not a proof or full-network validation. It does not replace the missing historical 3829-trajectory check. Original scientific files and previous archive versions remain unchanged. No new optimizer calls or closed-loop experiments were performed. File inventories, provenance notes, limitations and SHA-256 checksums are included. This collection is an analysis-evidence archive, not the complete raw solver repository. The exploratory M4-tol study has a separate protocol/run-package archive at https://doi.org/10.5281/zenodo.23699781. Its experimental outputs are not duplicated here, apart from the small shared arithmetic subset supporting Supplementary Table S15.