No source independent of O. Solovyova's 2000 account corroborates the Lukyanov '115 organizations / 40 cities' deployment figure

analog-computingengineering-historyussrlukyanovwater-integratorsource-verificationcitogenesis

question-corroborate-lukyanov-service-scale-figure asked whether a second, independent source confirms the claim that by the mid-1970s Lukyanov hydraulic integrators were deployed at 115 organizations across 40 Soviet cities. A broad Russian- and English-language search located six pages carrying the figure — a Habr retelling by "andreybrylb" (2025), History-Computer.com, Computer Timeline, and a handful of Russian aggregator mirrors — but every one traces textually to the same 2000 O. Solovyova sentence in Наука и жизнь, not to an independent count. The Habr piece adds real independent material elsewhere (a Saratov dam application, Baikal–Amur Mainline use, a 1976 permafrost-engineering reference) but its deployment-scale sentence is a near-verbatim copy of Solovyova's, down to the same three organization categories. The two English-language sites match each other closely enough to suggest a shared intermediate (likely Wikipedia-mediated) rendering rather than two independent translations. No source located anywhere in the search cites an archival, statistical, or production record as the figure's origin.

Wide circulation of a number is not independent confirmation of it — this search is a clean instance of that distinction, and it sits alongside this vault's other citogenesis findings (claim-wikipedia-amari-sgd-citogenesis, claim-ach-cd-abduction-characterization-traces-to-wikipedia-editorial-gloss) as another case where apparent multi-source corroboration collapses to one witness on direct textual comparison. Contrast claim-graham-marchick-2006-corroborate-fujitsu-fairchild-exon-florio-trigger, where a second-source search for a different vault claim succeeded: two independently-authored accounts with distinct citation trails. Here, none of the located accounts have an independent citation trail at all.