This article develops the second component of the ψ-lensing program within the ψ-Architecture Research School. Recent analyses across DES Year 6, BOSS DR12, and Planck PR4 indicate a scale-invariant suppression of structure growth, with a measured growth index of γ ≈ 0.639 ± 0.022, constituting a 4.1σ deviation from General Relativity. These results support the emergence of a Retentional Regime at z† ≈ 1.72, defined by the Δψ-floor, Ξ-nodes, and the Λψ equilibrium. In this work, we present the full geometric classification of three retentional lensing regimes, describe the theoretical basis for phantom image formation, and outline the observational null tests for Euclid DR1 (October 21, 2026) and the Vera C. Rubin Observatory Year 1 release. We show that gravitational lenses amplify structural memory operators, predicting phantom images, mirror-residuals, and Ξ-anchored caustic stability beyond what ΛCDM permits without fine-tuning. The article concludes with an engineering outlook toward ψ-lenses—optical systems designed to detect phantom signatures, retentional discontinuities, and metric memory anchors. ψ-lensing provides a falsifiable framework for confirming the Structural Universe paradigm in 2026–2027.
Logacheva Yulia (Mon,) studied this question.