The EPOCH Framework: A Unified Resolution of Cosmological Tensions – Full Release (5 papers)

This Zenodo record contains the complete set of five manuscripts introducing the EPOCH (Expansion-aware Photonic Coherence) framework, publicly released on November 26, 2025 by Yilwook Kim (Independent Researcher).

Main manuscript (13 pages):
• The EPOCH Framework: A Unified Resolution of Cosmological Tensions — Regression-Based Photonic Coherence Model

Supporting papers:
1. Regression-Based EPOCH Predictions for DESI DR2 BAO Measurements
2. Resolving Cosmological Tensions with EPOCH: A Unified Late-Time Framework  
3. Supplementary Material D: Local Manifestations — Galactic Fingerprints
4. Appendix A: Expansion-aware derivation of the EPOCH regression ansatz

Core result: A minimal two-parameter late-time correction to H(z), motivated by free photons regressing toward a pre-Big Bang symmetric state, simultaneously resolves the Hubble tension and the S8 tension while remaining fully consistent with high-redshift CMB and BAO data. The decaying model (β ≈ 0.058, τ_eff ≈ 21 Gyr) matches DESI DR2 low-z BAO measurements within 1σ and improves the joint Planck+DESI fit by ∆χ² ≈ −7.4 compared to ΛCDM.

All files are released under CC-BY-4.0.  
arXiv submission will follow when the cosmology community requests it strongly enough.

Keywords: Hubble tension, S8 tension, DESI DR2, BAO, late-time cosmology, photon regression, dynamical timescale