Cosmodynamics of Mirny: notes. Note No. 12. Stages against drift: full chain fitting \(\Lambda_{\text{eff}} (\psi(z))\)

Note 11 described the DESI-bin step phenomenologically, on three points.Here the chain is completed: Λeff (ψ) = Λ0 + λR(ψ) (Note 9, Eq. (1)) → the ana-paest of HP M (ψ) (Note 4, three candidates) → calibration ψ(z) (three anchors) →the observed step. A smooth CPL parametrization forced onto non-monotonic da-ta is pushed into an unphysical region (w0 ≈ −0.22, nearly 20σ from independentUnion3), whereas the step model stays physical (w(0) = −0.93, 0.9σ from Union3).A prediction schedule for the next DESI bin and for 45-bin schemes is given; falsierassigned.