Reproducibility materials for Matched Records Can Yield Different Query Results in CAP Warning Archives

These materials support the study “Matched Records Can Yield Different Query Results in CAP Warning Archives.” They contain source-processing and analysis code, payload-free record-level evidence, source URL and hash indexes, tables, figures, runtime specifications, and numerical reproduction instructions. The offline analysis recalculates archive linkage, lifecycle-specific coverage, paired message-type differences, and reconstructed validity ends, reselecting qualifying successors from released candidate-edge records. It also recalculates the earlier-period comparison. Raw CAP bodies and the source SQLite ledger are not redistributed. Full source reconstruction requires separately acquired snapshots matching the recorded hashes; later live archive responses may differ. Verification of released semantic records and full raw-source reconstruction are distinct. The associated article is not yet published. Source-specific terms continue to apply to third-party material. Version 0.19 retains the unchanged numerical reproducibility archive (v0.14) and current figure-rendering archive (v0.16). It adds CAP Reproducibility Update v0.19.zip, containing the current supplementary methods and the record-level inputs, code, and generated two-panel Table 2. The supplementary methods in the new file supersede those bundled with v0.14. The article manuscript is not included.