Exact target-adapted payload transfer

To execute a receiver operation selected by $k$, the code must also be delivered. Reserve a $q$-bit classical register at each site and copy the code along the same causal route. This is copying a diagonal classical variable, not cloning an unknown quantum state. At arrival, apply the selected $M_{k,y}$ locally. The complete received instrument is exactly (eq:instrument), with the payload relocated.

For $d=2^p$, the protocol uses $n$ register SWAPs and $n+1$ payload registers. If all payload registers are reserved before clock consumption, and the response probe is allocated afterward, the quantum peak is at most

The retained classical ledger uses at most $q(n+1)+1$ bits. External reference storage is listed separately.

This is the target-adapted protocol of the I-B type CheungIB. It does not assert exact reachability on one fixed lattice; En08-B treats a different approximation contract CheungEn08. No continuous-time Hamiltonian for a remote within-tick SWAP is constructed.

For compatible implemented channels, replacement of one factor at a time gives

This is a conditional error certificate, not a reported experiment.