Quantum Informational Gravity 2 (QIG 2): Frozen Dark-Sector Response

Quantum Informational Gravity 2 (QIG 2): Frozen Dark-Sector Response and Independent Falsification Protocol This technical white paper presents an evidence-scoped investigation of Quantum Informational Gravity 2 (QIG 2), a research framework examining relationships between microscopic quantum information, effective scalar-field dynamics, dark-sector physics, and cosmological structure formation. The study documents a reconstructed finite-system collective-field kinetic metric derived from a frozen two-register quantum Hamiltonian, together with an authenticated, non-retuned cosmological response template. The archived V28.1 model contains a 121 × 731 grid of effective gravitational responses μ(k,z) and Σ(k,z), with the assumed relation μ = Σ and a frozen transition parameter m₀ = 0.220000 h Mpc⁻¹. At redshift z = 0.525, the model's half-response transition occurs near k = 0.09773 Mpc⁻¹. Its redshift-dependent behavior provides a quantitative target for future observational tests against cosmic-shear measurements. The paper examines the relevance of the October 2026 KiDS-Legacy Bernardeau–Nishimichi–Taruya (BNT) analysis and specifies a reproducible, no-retuning comparison protocol involving KiDS-Legacy and DECADE observations, matched ΛCDM predictions, and alternative covariance prescriptions. Scientific status: The reported achievements concern finite-model mathematical consistency, source authentication, numerical reproducibility, and frozen phenomenological predictions. They do not establish the emergence of physical 3+1-dimensional gravity, identify dark matter, or demonstrate an observational detection of QIG. The proposed held-out observational comparison has not yet been executed. The protocol also acknowledges that relevant published KiDS-Legacy results were already available before this release; the complete survey cannot therefore be described as previously blinded. The accompanying evidence archive provides original frozen model inputs, verification scripts, numerical targets, source materials, and explicit falsification criteria. Purpose: To enable independent physicists and cosmologists to reproduce the established calculations, challenge the assumptions, and test whether QIG's frozen scale- and redshift-dependent predictions survive independent observational scrutiny. Version 1.0 — October 31, 2026. Independent research; not peer-reviewed.