Publication-derived consistency and provenance package for Source Attribution Can Change Despite Favorable Fit Diagnostics: Evidence from Source-Profile Choice in Chemical Mass Balance

Publication-derived data, original verification software and provenance materials accompanying the manuscript "Source Attribution Can Change Despite Favorable Fit Diagnostics: Evidence from Source-Profile Choice in Chemical Mass Balance" (R3nR8 editorial candidate). The archive reconstructs reported summary tables and local source-profile comparisons and checks reported arithmetic: 14 base checks and 25 supplementary consistency checks. The preserved original package has 20 SHA-256 manifest entries. It is not a complete original CMB computational archive, a rerun of all JRC/EPA fits, or independent field-accuracy validation. Original source-native archives and unrounded model-output ledgers were not recovered. Private Fairbanks spreadsheets, correspondence, manuscript files, author-biography files and third-party raw JRC/EPA binary inputs are excluded. Source identities, provenance, acquisition links and hashes are supplied instead. Original code is licensed under MIT; author-owned data and documentation are licensed under CC BY 4.0. These licences apply by component, not as alternative licences for the entire archive; third-party rights are not relicensed. See LICENSE_SCOPE.md. This is a data/software deposit, not a journal publication or evidence of journal acceptance.