Relational transport is not a second clock measurement

Under the covariance hypotheses, the mathematical family

acts on the recorded interface and satisfies a composition law. It transports a conditional system state from the represented reading $u$ to $t$ while leaving the stored record unchanged. It does not create a new observation of the consumed clock or rewrite the original event as if it had occurred at a new reading.

Multiple physical clock readings require additional clock resources or a different nondestructive protocol, with their own complete instruments. One destructive readout of a history state is not, by itself, a multi-time intervention experiment.