One nonempty transport realization

Choose a developed spatial segment of length $L_{\ast }>0$, with a compact regular tube in the laboratory. Install $n+1$ stations along it, each with a $p$-qubit register, $p\ge 1$. Initialize all but the sender in a fixed blank. Read the clock and produce the complete finite report at the sender. Retain every outcome and wait for a positive buffer interval. Forward the classical certificate on explicit causal wires. At each hop exchange neighbouring payload contents by opposite carriage paths taking developed time $2L_{\ast }/n$, not by an instantaneous remote gate.