Replication package for "On the uniform, achromatic rotation of CMB polarization"

Self-contained replication package for the PLB Letter “On the uniform, achromatic rotation of CMB polarization”. It verifies the parameter-free prediction beta_th = phi0/(4*pi) without any CMB data, and includes the exact artifacts used in the Letter’s figures. The archive contains: reproduce_prediction.py, fig1_beta_comparison.pdf, fig2_slope_check.pdf, data_beta_summary.csv, constants.yaml, README.md, and LICENSE. Angles in figures/CSV are in degrees; the sign convention matches the Letter (beta = - beta_exp). No external files are required to verify the quoted numbers. Requirements for the quick run are only Python ≥ 3.8. Run locally:python3 reproduce_prediction.py Expected output (abridged): it prints phi0 ≈ 0.0533 and beta_th ≈ 0.243018859 deg and, if TARGET_DBETA_DEG=0.003 in the script, the corresponding propagated theory uncertainty. Licensing: the record is CC BY 4.0; figures/data inside the archive are CC BY 4.0, code is MIT (see LICENSE). Please cite the concept DOI for all versions: [https://doi.org/10.5281/zenodo.17419910](https://doi.org/10.5281/zenodo.17419910) Version notes:Added reproduce_prediction.py (self-contained, no YAML, no external data) and a compact README with a quick-run section. Clarified angle sign convention. No changes to figure PDFs or CSV values versus v1.0.1.