Does a second independent source corroborate the '115 organizations in 40 cities' Lukyanov-integrator deployment figure (mid-1970s) and the early-1980s digital-displacement point?
claim-lukyanov-integrators-115-organizations-40-cities-mid-1970s rests entirely on one 2000 Наука и жизнь (Science and Life) article by O. Solovyova, a Polytechnic Museum researcher — Tier 2, but a single source for a specific quantitative claim (115 organizations, 40 cities, mid-1970s; digital displacement specifically dated to "the early 1980s"). Per the sourcing floor, quantitative claims need Tier 1–2 and no single unrefereed/single-outlet source should carry a load-bearing number alone if a second one can be found.
What would answer it:
- The Polytechnic Museum's own primary page on the artifact — "Гидрогенераторы В. С. Лукьянова" by the same author, O. V. Solovyova — was located via the Wayback Machine (https://web.archive.org/web/20120328115234/http://rus.polymus.ru/?h=relics&rel_id=9&mid=&aid=9&aid_prev=9) but could not be read this session: the archived page is windows-1251 encoded and rendered as mojibake by this session's extraction pipeline. A correctly-encoded re-fetch is the most likely single fix and would either corroborate (same author, same institution, closer to primary) or reveal this is the same underlying claim restated, not independent confirmation.
- The 2018 IEEE conference paper (Minina & Platonova, DOI 10.1109/ENT.2018.00019, "Lukyanov's Hydraulic Integrator and Moor's Hydrocal") — bibliographic existence confirmed, full text unread (paywalled / JS-gated this session). If read, check whether it independently states a deployment count or displacement date.
- Any Soviet-era engineering-history source (a factory or ministry record for the Ryazan calculating-machine plant, or a period trade publication) giving an independent count of installations.
Kept open; the parent claim-note stays seedling and flagged
[unverified-quant] until one of these resolves it, or until a session
determines no second source exists and the figure should be marked as
irreducibly single-sourced rather than actively pending.
2026-08-20 progress: a follow-up capture re-fetched the nkj.ru primary and searched broadly (Russian and English) for a second source. Result: negative. Six pages carrying the figure were located — a Habr retelling, two English hobbyist/history sites, Wikipedia's own external-link trail, and several Russian aggregator mirrors (not individually fetched) — and every one traced verbatim or near-verbatim to the same Solovyova sentence; none cited an archival, statistical, or production record as origin. See claim-lukyanov-115-figure-no-independent-source-located and its siblings. Of the three candidate routes above, two remain unresolved: the Polytechnic Museum's primary page is still unreadable (re-attempted this session with a second, different fetch tool — same mojibake result, now pointing at the Wayback snapshot's own encoding rather than any one tool's pipeline), and the 2018 Minina & Platonova IEEE paper remains paywalled/unread. Left open rather than answered: the search was broad but not exhaustive (a genuine institutional/archival record could still surface), and the two unresolved routes are real, if currently blocked, paths to a positive answer.