Reproducibility Package for "Local Thermal Marginals with Hidden Multipartite Entanglement in Energy-Filtered Pure States"

This record contains the reproducibility materials for the manuscript “Local Thermal Marginals with Hidden Multipartite Entanglement in Energy-Filtered Pure States.” It includes processed numerical data, figure-source tables, Python analysis scripts, environment specifications, validation data, finite-size entanglement diagnostics, adjacent-gap-ratio calculations, documentation, and a SHA256 manifest. The materials support the reported results on selected local thermal marginals, separability of all probe-attached two-qubit states, one-versus-rest entanglement, and finite-size genuine multipartite entanglement certification in energy-filtered pure spin-chain states.