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The distribution of P vs. (V-K), a mass proxy, has three different regimes: (V-K)<1.3, where the rotation rate rapidly slows as mass decreases; 1.3<(V-K)<4.5, where the rotation rate slows more gradually as mass decreases; and (V-K)>4.5, where the rotation rate rapidly increases as mass decreases. In this last regime, there is a bimodal distribution of periods, with few between $\\sim$2 and $\\sim$10 days. We interpret"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1703.07031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-21T02:53:52Z","cross_cats_sorted":[],"title_canon_sha256":"c1392b60001a145edf410be67bd18c066595eceb268b4a317ec90c235db999a7","abstract_canon_sha256":"25d3319bd756333ee956e5d8c7adbbefc53f91c83713fa22d37fbb53c39f5933"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:45:41.298807Z","signature_b64":"qpHfKMcnTbEXCEfjM7g66bADVgQGPuoulq818TOcLw/Ges5ysd8N4P29h8xsAlOlIVLFcCR4XO65NTaXVL2kBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c55a64ea9d6e0415ff61d105523720a71d9a0da29afc246fd3b4dd4af52219a5","last_reissued_at":"2026-05-18T00:45:41.298287Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:45:41.298287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rotation of Late-Type Stars in Praesepe with K2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. 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