Lane A: convolution-regulated classical prescription

The supplied account describes a spacetime convolution acting on metric arguments in an auxiliary coordinate problem. It reports a fixed witness producing a first-order defect on that manuscript's declared gauge algebra record.

The bounded audit conclusion is:

The reported convolution prescription is obstructed on the frozen algebra and at the order tested by its witness.

The exact convolution kernel, action, gauge algebra, inverse normalization, and witness formula are not reproduced in the supplied materials. XV-A therefore does not independently verify that obstruction.

The ramp identity concerns another signature. In the absence of an explicit bridge, it neither removes the reported convolution defect nor identifies its witness with a ramp edge integral. No statement about every possible convolution prescription follows.