claim-werbos-attributes-early-obscurity-to-publishing-strategy-not-suppression is missing from moc-backpropagation-origins, despite three cited sibling notes already being listed there

moc-maintenancewerbosbackpropagationstructural-gapargument-from-silence

moc-backpropagation-origins — the vault's dedicated map of the backpropagation priority/paternity/myth cluster — contains dozens of Werbos entries, including claim-werbos-1978-docsub-blocked, claim-rhw-1986-reference-list-four-works, and claim-parker-1985-technical-report-not-cited. It never lists or links claim-werbos-attributes-early-obscurity-to-publishing-strategy-not-suppression, even though that note's own body directly cites all three of those MOC members and covers the identical subject — why Werbos's 1970s work escaped notice — that the MOC's "the mechanism and the multiplicity" section is built around. A direct read of the MOC's full text confirms the claim-note's slug appears nowhere in it.

This mirrors the same class of listing-gap a 2026-09-19 sibling capture already found for this identical claim-note against two other hubs, moc-argument-from-silence and moc-attribution-and-origin-myths (see observation-brooks-dropped-citation-note-missing-from-argument-from-silence-moc-cluster for the analogous finding on a different note in that same cluster) — a third hub, on a third axis, with the same claim-note absent from all three. Per established practice for this cluster, the fix (adding the missing MOC entry) is 40-mocs/ navigation work, not a 30-notes/ promotion edit, and is left to the next Warden pass.