Diagnostics that do not determine the required channel

If $D$ and $K$ are assigned degenerate bare energies and both models use the same $T{T}^{\prime }$ preparation, the comparison also agrees on the declared energy diagnostics. This adds no spacetime or emission-rate theorem.

This elementary separation matches the logic of Cheung's entropy-history and spectrum non-identification records CHawk01B,CHawk02A. It does not challenge an independently established reconstruction theorem.