F.9.1:4.5 - Preserve source return and coarsening boundaries

A projection or nonEquivalent stance can highlight loss, but it does not provide the source tether, narrower admissible use, blocked downstream use, or return trigger required for controlled coarsening. When those duties are live, use A.6.3.CSC and keep the stance note only if it still helps explain an independently established bounded-use claim.

Publication does not cure a missing source. If a reader must return to a source episteme or source publication before the Bridge or bounded-use claim can be checked, perform that return first.