Three modality address counts can be compared after each source closes. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Each modality declares an address count

The x-ray training map has 4 reciprocal bins, the MRI-style map has 4 phase rows, and the optical map has 4 fields.

Nbins=4,Nrows=4,Nfields=4N_{\text{bins}}=4,\quad N_{\text{rows}}=4,\quad N_{\text{fields}}=4
Multimodal ledgerEach displayed ledger value is bound to a source check.binsrowsfields4 bins4 rows4 fields

Equal counts make a comparable ledger

All three displayed counts are 4. That makes the training record auditable, not biologically proven.

4 bins=4 rows=4 fields4\ \text{bins}=4\ \text{rows}=4\ \text{fields}
Multimodal ledgerEach displayed ledger value is bound to a source check.binsrowsfields4 bins4 rows4 fields