sdd:parentCopy as claim

sdd:parent records the authoring/provenance nesting of a scene instance — the stanza containment chain a sdd:Node, sdd:Edge, or sdd:Datum was written inside, from its immediate stanza up to a sdd:LocalScope or other scope.Copy as claim

sdd:parent is deliberately distinct from derived containment (sdd:containedBy, introduced in later plans): parent is where an instance is authored, containedBy is where it renders (examples decision 8). A local node can be authored in @local yet render nested inside a container derived from a fact like partOf — two hierarchies, two predicates, never conflated. On round-trip, the sdd:parent chain is exactly the stanza nesting the serializer reconstructs (examples §"Round-trip rules", rule 4).Copy as claim