A capstone audit must use accepted, cross-checked source budgets. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
A rejected window cannot support the audit
A missed readout window has overlap 0, so it is rejected before assignment.
Δtoverlap=0
The accepted source keeps the audit closed
The capstone uses an accepted source with 40 readouts, no more than the 45 coherent shots.