The buffer through the incidence parameter

Store the payload at the regular sender during the complete geometric window. At this port the marking crosses its static worldline at $t=s+2$, hence at times $1\le t\le 3$. The event at the worldsheet occurs at $t=0$. Neither the storage channel nor its port touches the defect.

For the multi-outcome history experiment, complete clock readout at $t=4$. Run the finite metadata circuit afterward. Give every elementary local gate a fixed positive duration $\gamma$, and, if necessary, an additional positive interval for record packaging. Choose departure after their sum.

A pointer used for a finite table probe is prepared and destroyed locally, with its own positive-duration slot. No logical identity allowing deferral changes this actual timing or memory ledger.