{"paper":{"title":"Modularity of a certain \"rank-2 attractor\" Calabi-Yau threefold","arxiv_id":"2602.20188","primary_cat":"math.NT","submitted_at":"2026-02-21T11:02:40+00:00","version_compiled":"v2"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. 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