Original ledger status
SEED.CROSSSECTOR.01
SEED.CROSSSECTOR.01
CROSS-SECTOR ONE-PARAMETER SEED TEST (2026-07-01, v465): the theta13-independent, externally-runnable SUBSET of SEED.CROSSVAL.01/v306 -- the sharpest shared-origin signature is a correlation no non-shared-origin model predicts: a CMB EB/TB birefringence angle beta and a quark Cabibbo angle lambda_C=|Vus| (unrelated in the SM) are two readouts of the ONE axiom seed phi0=1/(6pi)+48 c3^4. [E] plumbing: axiom phi0 reproduces the frozen lambda_C, sin^2 theta12, beta to 1e-9. [N] CROSS-SECTOR: back-solving phi0 independently from beta (CMB, ACT DR6+Planck PR4 combined) and lambda_C (quark, PDG 2024) gives the SAME seed within 0.01 sigma_combined. [N] ONE-PARAMETER FIT: the error-weighted mean of the 3 back-solved phi0 (lambda_C, sin^2 theta12, beta) reproduces the axiom to 0.06%; joint chi^2 at the axiom (0 free params, 3 dof)=0.007, chi^2/dof<1, combined pull 0.08 sigma. [N] THETA13 EXCLUSION declared, not cherry-picked: adding sin^2 theta13 raises chi^2 by ~4 (the documented ~2 sigma pressure, FLAV.TH13.PRESSURE.01/v328/v338), so the slice is deliberately theta13-independent. [N] NEG/POWER: a data<->formula shuffle explodes the cluster chi^2 by >5e4x. A consistency / out-of-sample statistic (subset of v306); phi0 is FIXED by the axioms, so it upgrades NO prediction and closes NO gate.
Recorded status: Numerical [N] (cross-sector consistency statistic)
Dependencies, status detail and source
Canonical status: [N] the cross-sector beta<->lambda_C back-solve to the same seed (0.01 sigma) + the 3-observable one-parameter chi^2/dof<1 + the declared theta13 exclusion + the shuffle power control. A consistency statistic; does NOT upgrade any prediction or close any gate.
Dependencies: SEED.CROSSVAL.01; ANCHOR.GEN.01; REG.FREEZE.01
Scripts: v465_seed_crosssector_joint.py
Location: tfpt_5_redteam
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