DATASET A — CLASSICAL FRIEDMANN APPROACH DIAGNOSTICS
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Parameter source: C:\Users\igorc\OneDrive\Desktop\UNNS_SUBSTRATE(desktop)\TRANSFER\Bulk_2\REGIME_SYNTHESIS\Cosmological Boundary Routing\cosmological_boundary_routing\C_planck_lcdm\parameters\extracted\planck_2018_base_plikHM_TTTEEE_lowl_lowE_parameters.csv
Trajectory output: C:\Users\igorc\OneDrive\Desktop\UNNS_SUBSTRATE(desktop)\TRANSFER\Bulk_2\REGIME_SYNTHESIS\Cosmological Boundary Routing\cosmological_boundary_routing\A_classical_friedmann\generated_trajectory\raw\classical_friedmann_approach_raw.csv

ROLE
Matched classical contracting branch approaching the small-a numerical singular cutoff.

PARAMETERS
H0 = 67.32178 km s^-1 Mpc^-1
Omega_m = 0.3157967
Omega_r_effective = 9.21617990232e-05
Omega_Lambda_planck = 0.6842033
Omega_Lambda_dynamic = 0.684111138201

CLOSURE
Planck Lambda plus explicit radiation = 1.00009216179902
Dynamic flat closure = 1
Dynamic closure residual = 0.000000e+00

SAMPLING
a_start = 1
a_cutoff = 1e-08
samples = 4001
grid = logarithmic in scale factor, descending

CONTRACTION CHECK
elapsed contraction time to cutoff = 13.7969074704 Gyr
initial H_signed = -67.32178 km s^-1 Mpc^-1
terminal H_signed = -6.46306468673e+15 km s^-1 Mpc^-1
initial provisional margin = 0.395863914632
terminal provisional margin = 1.08501108519e-28

EXPECTED MONOTONICITY
- scale factor: decreasing
- contraction elapsed time: increasing
- |H|: increasing
- total density: increasing
- curvature proxy: increasing
- provisional boundary margin: decreasing

METHOD NOTES
- H is negative to identify the contracting branch.
- The trajectory stops at a = a_min and does not numerically evaluate a = 0.
- Omega_r remains an effective relativistic radiation density.
- boundary_margin_candidate remains provisional and is not the frozen shared A/B/C margin.
- Dataset A and Dataset C share the same background Friedmann magnitude E(a); their research roles and trajectory orientations differ.
