Reproducibility Package for Testing Non-Phantom Tachyon Dark Energy with DESI DR2 and Type Ia Supernovae

This record contains the reproducibility package for the manuscript“Testing Non-Phantom Tachyon Dark Energy with DESI DR2 and Type IaSupernovae.” The deposit includes the frozen round5-freeze-1 likelihood package,analysis notebooks, posterior chains, convergence diagnostics,nested-sampling outputs, branch-specific empirical null-simulationoutputs, plotting materials and publication figures. The analysis combines DESI DR2 baryon acoustic oscillations with acompressed Planck early-Universe anchor and treats the Union3 andPantheon+ Type Ia supernova compilations as separate analysis branches.The two supernova branches are never combined. The frozen pipeline is identified by the SHA-256 hash: 4e0238405107bdd3b4ea2c4d6ecbb6e0873e22ab1f4843d3d587c4fcd3f36be9 The record contains: • MISVL_code_and_notebooks_v1.0.0.zip — frozen source package, analysis notebooks and publication figures. • MISVL_publication_outputs_v1.0.0.zip — posterior chains, convergence diagnostics, nested-sampling outputs and empirical null-simulation outputs. Bundled third-party observational inputs retain the terms andconditions of their original DESI, Union3, Pantheon+ and Plancksources and are not relicensed by this deposit.