The Data for Updated 1.1% Precision Values of the Hubble Constant with Corrected Pantheon+ and Dark Energy Survey (DES)-DOVEKIE Type Ia Supernovae

This dataset accompanies the published article “Updated 1.1% Precision Values of the Hubble Constant with Corrected Pantheon+ and Dark Energy Survey (DES)-DOVEKIE Type Ia Supernovae” (2026 ApJL 1008 L50, arXiv:2607.24443). It provides an independent public-input reconstruction of the Pantheon+ host-mass bias-correction update described by Hoyt et al. (2026, arXiv:2601.19424, Appendix F). The archive contains row-by-row corrections for the 114 affected Pantheon+ entries, the fitted correction coefficients, machine-readable reconstruction and validation metadata, checksums, documentation, and Python scripts that reproduce the complete corrected standardized-magnitude table. The reconstruction changes only the m_b_corr column. It does not alter biasCor_m_b, redshifts, light-curve parameters, uncertainties, or covariance products. The unmodified public Pantheon+SH0ES input is not redistributed in this deposit. It is obtained from the official Pantheon+SH0ES DataRelease repository and is identified in the documentation by its exact URL, upstream commit, and SHA-256 checksum. The corrected table privately supplied by Hoyt et al. is also not included and is not an input to the reconstruction; it was used only for post-reconstruction numerical validation. Shouvik Roy Choudhury created the reconstruction implementation, the derived 114-row correction product, the metadata, validation products, checksums, and documentation. All deposited material is licensed under Creative Commons Attribution 4.0 International.