{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:AGDFVQS3GKSKRZQ4QQVBOIKB4M","short_pith_number":"pith:AGDFVQS3","schema_version":"1.0","canonical_sha256":"01865ac25b32a4a8e61c842a172141e324c25ce32d58ae3350a484d825bc2ad8","source":{"kind":"arxiv","id":"1601.03536","version":4},"attestation_state":"computed","paper":{"title":"Time series analysis of long-term photometry of BM Canum Venaticorum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Viitanen, G. W. Henry, J. Lankinen, J. Lehtinen, J. Viuho, L. Immonen, L. Jetsu, L. Siltala, P. Kajatkari, S. Monira, S. Nikbakhsh, T. Hackman, T. Willamo","submitted_at":"2016-01-14T10:11:59Z","abstract_excerpt":"Studying RS CVn binaries is challenging, because in addition to spot activity, other effects such as mass transfer between the components and gravitational distortion of their spherical forms may distort their light curves. Such effects can, however, be removed from the data by subtracting a mean light curve phased with the orbital period. We study a quarter of a century of standard Johnson differential V photometry of the RS CVn binary BM CVn. Our main aims are to determine the activity cycles, the rate of surface differential rotation and the rotation period of the active longitudes of BM CV"},"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":"1601.03536","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-01-14T10:11:59Z","cross_cats_sorted":[],"title_canon_sha256":"810730f980502625398504a2954e27b3c442a2e5bad41444c4160bf72be0fec5","abstract_canon_sha256":"74cea64810654ceb43c3053fe5b9fa8a4ff97ea486ac78180e77b798ac0d92e8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:01.684040Z","signature_b64":"a4MCCuox+KDoHLOPlZTDwhvWsiBMgoEy73FVP/32wh1UT5xesFrp42sVLLjrVHmmjo+BVbO8f1CvHKjnzTZRCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"01865ac25b32a4a8e61c842a172141e324c25ce32d58ae3350a484d825bc2ad8","last_reissued_at":"2026-05-18T00:44:01.683432Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:01.683432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Time series analysis of long-term photometry of BM Canum Venaticorum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Viitanen, G. W. Henry, J. Lankinen, J. Lehtinen, J. Viuho, L. Immonen, L. Jetsu, L. Siltala, P. Kajatkari, S. Monira, S. Nikbakhsh, T. Hackman, T. Willamo","submitted_at":"2016-01-14T10:11:59Z","abstract_excerpt":"Studying RS CVn binaries is challenging, because in addition to spot activity, other effects such as mass transfer between the components and gravitational distortion of their spherical forms may distort their light curves. Such effects can, however, be removed from the data by subtracting a mean light curve phased with the orbital period. We study a quarter of a century of standard Johnson differential V photometry of the RS CVn binary BM CVn. Our main aims are to determine the activity cycles, the rate of surface differential rotation and the rotation period of the active longitudes of BM CV"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.03536","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1601.03536","created_at":"2026-05-18T00:44:01.683527+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.03536v4","created_at":"2026-05-18T00:44:01.683527+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.03536","created_at":"2026-05-18T00:44:01.683527+00:00"},{"alias_kind":"pith_short_12","alias_value":"AGDFVQS3GKSK","created_at":"2026-05-18T12:30:07.202191+00:00"},{"alias_kind":"pith_short_16","alias_value":"AGDFVQS3GKSKRZQ4","created_at":"2026-05-18T12:30:07.202191+00:00"},{"alias_kind":"pith_short_8","alias_value":"AGDFVQS3","created_at":"2026-05-18T12:30:07.202191+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M","json":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M.json","graph_json":"https://pith.science/api/pith-number/AGDFVQS3GKSKRZQ4QQVBOIKB4M/graph.json","events_json":"https://pith.science/api/pith-number/AGDFVQS3GKSKRZQ4QQVBOIKB4M/events.json","paper":"https://pith.science/paper/AGDFVQS3"},"agent_actions":{"view_html":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M","download_json":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M.json","view_paper":"https://pith.science/paper/AGDFVQS3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.03536&json=true","fetch_graph":"https://pith.science/api/pith-number/AGDFVQS3GKSKRZQ4QQVBOIKB4M/graph.json","fetch_events":"https://pith.science/api/pith-number/AGDFVQS3GKSKRZQ4QQVBOIKB4M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M/action/storage_attestation","attest_author":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M/action/author_attestation","sign_citation":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M/action/citation_signature","submit_replication":"https://pith.science/pith/AGDFVQS3GKSKRZQ4QQVBOIKB4M/action/replication_record"}},"created_at":"2026-05-18T00:44:01.683527+00:00","updated_at":"2026-05-18T00:44:01.683527+00:00"}