Prescribed regular transport

Choose a straight developed spatial segment of length $\ell >0$ inside the existing regular tube, and a departure time $t_{\mathrm{d}}$ after readout and its declared buffers. For $n\ge 1$, place equal payload registers $A_0,\dots ,A_n$ at equally spaced stations. The payload includes the finite report and every surviving quantum output required by the comparison.

Initialize $A_1,\dots ,A_n$ in independent blanks $\omega$, and apply successive register SWAPs over developed durations $\ell /n$.