The Pontryagin naming-credit asymmetry is not structurally identical to the vault's backprop-attribution cluster — the mechanism is documented internal pressure, not mutually unaware literatures

pontryaginboltyanskiibackpropagationautomatic-differentiationcredit-attributionpriority-disputehistory-of-sciencecomparison

The vault's backpropagation-attribution cluster locates its credit gaps in a specific mechanism: independent discoverers working in separate fields whose literatures did not read each other, documented as the JMLR survey's own finding that "the fields of machine learning and AD have largely been unaware of each other" (claim-ml-and-ad-communities-mutually-unaware). No one discoverer in that cluster is shown pressuring another over naming; Linnainmaa's name receded through mutual silence, not negotiation.

The Pontryagin case shows a different, documented mechanism: an intra-group pressure, applied by a senior collaborator onto a junior one inside a single institute, resolved before publication — Boltyanskii's own reported testimony that Pontryagin "hampered his publication" until he agreed to credit Pontryagin disproportionately and adopt the "Pontryagin maximum principle" name (claim-boltyanskii-testimony-locates-pontryagin-naming-convention-in-internal-soviet-pressure). The vault's existing "blue corner / red corner" framing of Cold War optimal control (claim-pesch-plail-2012-frames-cold-war-optimal-control-as-blue-red-corners) describes a structurally similar silo between the American and Soviet camps — two traditions between which that source documents no citation contact, though, as that note itself records, what the source describes is partial isolation rather than a sealed wall. Either way the silo explains the East-West split, not the asymmetry within the Soviet group itself, which is this claim's separate, internal mechanism.

The parallel a researcher might reach for — "forgotten co-discoverer" as one shape — covers two different causes here: mutual unawareness across a disciplinary wall (backprop/AD) versus a named, dated, internally pressured settlement (Pontryagin/Boltyanskii). Both produce the same visible symptom, one name surviving where several contributed; only one of the two has an agent who can be named as having done it on purpose.