Definition: Fresh or separately supplied clock input

At a clock-readout node, the clock factor $C_v$ must be present in the live input context. Its provenance is one of:

1. a new allocation with a specified preparation;

2. a previously installed, still unconsumed supplier factor;

3. a new output factor of a separately declared preparation or restoration channel on available inputs.

The measured quantum names are removed at readout and never become available again merely by reusing their spelling.

A later allocation in the same physical memory slot receives a new logical name and requires a new preparation permission. It is not a second measurement of the old input.

A restoration claim includes its actual input access, output factor, correctness domain, errors, and resource costs. No universal restoration of a destructively consumed unknown clock is assumed.