Complete destructive clock

This is the complete-channel pattern of I-B and En09-A, with its proof given for this finite interface IB,En09. Conditional reference states may be steered by selection of an outcome, while the unconditional reference marginal remains unchanged.

If distinct calibrated labels are required to equal the time of one fixed readout event on every positive branch, only one label can occur. Nontrivial multi-outcome histories instead use a separate map from codes to labelled events. The clock encoding is finite; the geometric time coordinate survives its destruction.

No stationarity or clock-covariance assumption is used to infer a Schrödinger evolution from arbitrary conditioning. The instrument identity alone would not justify that further interpretation.