25ccb6723a
Filtering array A by the cell-index criteria and following each pointer: every A record points at a distinct B record, 11/11, and every A count field is exactly 1, 11/11. Per object the A-record count is the number of occupied cells (110 to 575) and the counts sum to it exactly. That is the same design REGN uses -- the corpus already records 'every occupied cell has count exactly 1' there. Two sibling formats, one convention, and a further independent confirmation of the A reading since the filter and the cardinality are unrelated criteria. Array B resisted, and both attempts failed in ways worth recording. The record boundary was off by 8 again, producing records that start with the tail of the previous structure -- the same mistake as the 0x74 check two iterations ago. And the u16-index test had no power: the 0x5C block holds ~1232 points, so 'is this u16 below the point count' passes for almost any small value, and duly reported 100% at seven offsets. Fourth time in these two formats that a bound-check against a large collection produced a meaningless 100%. Recorded what would have power instead: B records are 1:1 with occupied cells and A carries that cell's bounding sphere, so a B field can be tested for spatial consistency with that specific cell.