{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:4KZUMMYVZDZWLQGPFOLASGRBQ6","short_pith_number":"pith:4KZUMMYV","schema_version":"1.0","canonical_sha256":"e2b3463315c8f365c0cf2b96091a2187bc8e9d0fa7c9519c33dfcfa1bccdac88","source":{"kind":"arxiv","id":"1807.00008","version":1},"attestation_state":"computed","paper":{"title":"The OGLE Collection of Variable Stars. Type II Cepheids in the Magellanic System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Udalski, D. Skowron, I. Iwanek, I. Soszy\\'nski, J. Skowron, K. Rybicki, K. Ulaczyk, {\\L}. Wyrzykowski, M. K. Szyma\\'nski, P. Mr\\'oz, P. Pietrukowicz, R. Poleski, S. Koz{\\l}owski","submitted_at":"2018-06-29T18:00:02Z","abstract_excerpt":"We present a nearly complete collection of type II Cepheids in the Magellanic System. The sample consists of 338 objects: 285 and 53 variables in the Large and Small Magellanic Clouds, respectively. Based on the pulsation periods and light-curve morphology, we classified 118 of our type II Cepheids as BL Herculis, 120 as W Virginis, 34 as peculiar W Virginis, and 66 as RV Tauri stars. For all objects, we publish time-series VI photometry obtained during the OGLE-IV survey, from 2010 to the end of 2017.\n  We present the most interesting individual objects in our collection: 16 type II Cepheids "},"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":"1807.00008","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-06-29T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"75d4c67a7ad4328d76607ecb6d0feaae462bea981c12c8de33e7a2a0d60b12e5","abstract_canon_sha256":"2f8d6f44cc148c37450e6ea0a9064a932e46de58806ca72f149205fdbe9e1ed3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:34.010587Z","signature_b64":"IRAJ+GCcky2AFJ4VhG5e1fIAANEWwlhd3mIz5VuslGyGXs+uLXSWCWohiZU+M5863FnWw8YWyprRWob3HeXMBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2b3463315c8f365c0cf2b96091a2187bc8e9d0fa7c9519c33dfcfa1bccdac88","last_reissued_at":"2026-05-18T00:02:34.010006Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:34.010006Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The OGLE Collection of Variable Stars. Type II Cepheids in the Magellanic System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Udalski, D. Skowron, I. Iwanek, I. Soszy\\'nski, J. Skowron, K. Rybicki, K. Ulaczyk, {\\L}. Wyrzykowski, M. K. Szyma\\'nski, P. Mr\\'oz, P. Pietrukowicz, R. Poleski, S. Koz{\\l}owski","submitted_at":"2018-06-29T18:00:02Z","abstract_excerpt":"We present a nearly complete collection of type II Cepheids in the Magellanic System. The sample consists of 338 objects: 285 and 53 variables in the Large and Small Magellanic Clouds, respectively. Based on the pulsation periods and light-curve morphology, we classified 118 of our type II Cepheids as BL Herculis, 120 as W Virginis, 34 as peculiar W Virginis, and 66 as RV Tauri stars. For all objects, we publish time-series VI photometry obtained during the OGLE-IV survey, from 2010 to the end of 2017.\n  We present the most interesting individual objects in our collection: 16 type II Cepheids "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00008","kind":"arxiv","version":1},"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":"1807.00008","created_at":"2026-05-18T00:02:34.010076+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.00008v1","created_at":"2026-05-18T00:02:34.010076+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00008","created_at":"2026-05-18T00:02:34.010076+00:00"},{"alias_kind":"pith_short_12","alias_value":"4KZUMMYVZDZW","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"4KZUMMYVZDZWLQGP","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"4KZUMMYV","created_at":"2026-05-18T12:32:05.422762+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/4KZUMMYVZDZWLQGPFOLASGRBQ6","json":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6.json","graph_json":"https://pith.science/api/pith-number/4KZUMMYVZDZWLQGPFOLASGRBQ6/graph.json","events_json":"https://pith.science/api/pith-number/4KZUMMYVZDZWLQGPFOLASGRBQ6/events.json","paper":"https://pith.science/paper/4KZUMMYV"},"agent_actions":{"view_html":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6","download_json":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6.json","view_paper":"https://pith.science/paper/4KZUMMYV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.00008&json=true","fetch_graph":"https://pith.science/api/pith-number/4KZUMMYVZDZWLQGPFOLASGRBQ6/graph.json","fetch_events":"https://pith.science/api/pith-number/4KZUMMYVZDZWLQGPFOLASGRBQ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6/action/storage_attestation","attest_author":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6/action/author_attestation","sign_citation":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6/action/citation_signature","submit_replication":"https://pith.science/pith/4KZUMMYVZDZWLQGPFOLASGRBQ6/action/replication_record"}},"created_at":"2026-05-18T00:02:34.010076+00:00","updated_at":"2026-05-18T00:02:34.010076+00:00"}