ADR-018: substrate provenance register + cherry-pick procedure (OQ-11 resolved — Phase 1 question set closed)

docs/architecture/decisions/013-fold-substrate-into-sqlite.md

@@ -153,6 +153,10 @@ in-tree beside the substrate subtree (its location settles with the
 fold; its format/granularity remains OQ-11 item (2)). Items (2)
 (register format and delta-list granularity) and (3) (cherry-pick
 procedure in practice) remain, now scoped to the in-tree register.
+*(Resolved 2026-10-06 by
+[ADR-018](018-provenance-register-and-cherry-picks.md): the register
+is `src/substrate/PROVENANCE.md`; per-delta, category-tagged entries;
+the five-step cherry-pick procedure.)*
 
 ## Consequences