The capstone audit ties projection, reconstruction, and echo depth together. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
The audit cites checked sources
Projection rows and columns, solved cells, zero residuals, and echo depth all come from typed source refs.
3712m
The displayed image is accepted only as a checked chain
The accepted bit is 1 because the final displayed model matches the cited measurements.