C0 coverage re-check from band_verify_squares.jsonl: 351 level-0 squares meet the triangle, all covered by the 1212 certified squares: True
RQ-REF3 band_verify.py md5 18a0f70ddc375feaef231f3c8512306d, chi.py md5 4de871314e587c573750301ea6982255; start 2026-10-23 03:00:33 UTC
C1 origin squares, shift 0: 2 / 2 certified (expected 2)
C2 origin squares, shift 0.0005: 0 / 2 certified (expected 0)
   (0, 0, 1, 128) first failing (L1, L2, m1, m2) = (0.563262939453125, 0.56329345703125, 0.75048828125, 0.7506103515625)
   (0, 0, 1, 256) first failing (L1, L2, m1, m2) = (0.563262939453125, 0.56329345703125, 0.75048828125, 0.7506103515625)
C3 origin squares, shift 0, slope check off: 0 / 2 certified (expected 0)
   (0, 0, 1, 128) first failing (L1, L2, m1, m2) = (0.5985107421875, 0.598541259765625, 0.7734375, 0.7735595703125)
   (0, 0, 1, 256) first failing (L1, L2, m1, m2) = (0.579681396484375, 0.5797119140625, 0.76123046875, 0.7613525390625)
C4 neighbours (1,0) and (0,1) of side 1/128, shift 0, no refinement: 0 / 2 certified (expected 0)
C5 the 24 squares of the finest level (side 1/1024): shift 0: 24 certified (expected all); shift 0.001: 15 not certified
   these squares have a1 + b1 in [0.1973, 0.1992]
RESULT: ALL CONTROLS BEHAVE AS EXPECTED (66 s)
