{"paper":{"title":"21cm fluctuations from primordial magnetic fields","arxiv_id":"1403.2608","primary_cat":"astro-ph.CO","submitted_at":"2014-03-11T15:15:06+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-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. 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