# B_LADDER_AUDIT_I.txt
# STELLAR_BOUNDARY_DYNAMICS_I
# Phase B — Pilot Light-Curve Ladder Audit

PURPOSE:
Record the first generated Phase B supernova light-curve ladders before
STRUC_PERC_I conversion.

INPUT_SCHEMA:
B_light_curve_ladder_schema.csv

CONVERTER:
tools/osc_to_b_ladder.py

RAW_SOURCE:
Open Supernova Catalog / AstroCats JSON records

GENERATED_LADDERS:
ladders/B_SN1987A_light_curve_ladder.csv
ladders/B_SN1993J_light_curve_ladder.csv
ladders/B_SN1999em_light_curve_ladder.csv
ladders/B_SN2011dh_light_curve_ladder.csv
ladders/B_SN2012aw_light_curve_ladder.csv
ladders/B_SN2013ej_light_curve_ladder.csv

KNOWN_ROW_COUNT:
B_SN1987A_light_curve_ladder.csv — 3332 rows
B_SN1999em_light_curve_ladder.csv — 1207 rows

ROW_COUNTS_PENDING_CHECK:
B_SN1993J_light_curve_ladder.csv
B_SN2011dh_light_curve_ladder.csv
B_SN2012aw_light_curve_ladder.csv
B_SN2013ej_light_curve_ladder.csv

STATUS:
Six pilot light-curve ladder CSV files generated.
Ready for audit and STRUC_PERC_I conversion.

IMPORTANT NOTE:
These are observable post-collapse brightness ladders.
They are not yet STRUC_PERC_I structural vectors.
They must first be converted into compact canonical structural sequences.

NEXT STEP:
Create Phase B STRUC_PERC_I converter:
tools/b_ladder_to_struc_perc_i.py