=== row 15 ===
Scorecard (verbatim): y t (tree) cubic invariant / Peirce ½ theory 1 experiment y t (M Z ) ≈ 0.967 deviation — Structural (declared) —
carrier_middle_weight = 1
declared_boundary_y_t = 1
reported_running_y_t_MZ = approximately 0.967 (source report; not rerun)
running_inputs = NOT IN SUITE (complete initial-value data absent from excerpts)
signed_percent = NOT ASSIGNED (different scales; no experimental comparator)
d = NOT ASSIGNED (not an experimental comparison)