A public-data late-time consistency audit of flat ΛCDM with compressed geometry and growth probes

This record contains the submission-ready manuscript package for a standalone late-time cosmology paper based on public compressed data. The paper asks a narrow question: how internally consistent is late-time flat ΛCDM across public compressed geometry and growth probes? The geometry block combines the ruler-free DESI DR2 Alcock-Paczynski track with a Pantheon+ Type Ia supernova sample treated with an explicit cosmology-style cut. The growth block uses the public DESI DR1 six-bin ShapeFit+BAO growth-ratio compression, analysed with null, constant-amplitude, and linear-tilt summaries. The paper’s main conclusion is conservative: once the supernova sample is handled correctly, both the geometry block and the public six-bin growth block are consistent with flat ΛCDM at the level tested here, and the best-fitting linear tilt is slightly positive but statistically consistent with zero. The package includes the manuscript PDF and LaTeX source together with the code, data, and figure files used in the submission package.