{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UPLTWTMTQ3O34RPH7XKTDZRPB3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a08b9fcf24350f774a7291507b7a4cad8e33eb78b14dc8ffe81f39dcb85a640b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-01-18T04:53:04Z","title_canon_sha256":"a0256f547042694e5a7dde5c80de3445b09a946ae777704c217b5746680c8028"},"schema_version":"1.0","source":{"id":"2401.09722","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.09722","created_at":"2026-07-05T09:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"2401.09722v2","created_at":"2026-07-05T09:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.09722","created_at":"2026-07-05T09:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"UPLTWTMTQ3O3","created_at":"2026-07-05T09:19:26Z"},{"alias_kind":"pith_short_16","alias_value":"UPLTWTMTQ3O34RPH","created_at":"2026-07-05T09:19:26Z"},{"alias_kind":"pith_short_8","alias_value":"UPLTWTMT","created_at":"2026-07-05T09:19:26Z"}],"graph_snapshots":[{"event_id":"sha256:cef7e9204486e640dbad97ccdcb7731524614537afde813c3b8b5ccaf7f1652c","target":"graph","created_at":"2026-07-05T09:19:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2401.09722/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"HD 54879 is the most recently discovered magnetic O-type star. Previous studies ruled out a rotation period shorter than 7 years, implying that HD 54879 is the second most slowly-rotating known magnetic O-type star. We report new high-resolution spectropolarimetric measurements of HD 54879, which confirm that a full stellar rotation cycle has been observed. We derive a stellar rotation period from the longitudinal magnetic field measurements of P = 2562+63-58 d (about 7.02 yr). The radial velocity of HD 54879 has been stable over the last decade of observations. We explore equivalent widths an","authors_text":"A. David-Uraz, C. Erba, C. P. Folsom, G. A. Wade, L. Fossati, M. E. Shultz, S. Bellotti, S. Seadrow, V. Petit","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-01-18T04:53:04Z","title":"First Observation of the Complete Rotation Period of the Ultra-Slowly Rotating Magnetic O Star HD 54879"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.09722","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:dc5ab4bcced4418fa173cd4d089b00e4b4635eecceb142b333636071222df1fe","target":"record","created_at":"2026-07-05T09:19:26Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a08b9fcf24350f774a7291507b7a4cad8e33eb78b14dc8ffe81f39dcb85a640b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-01-18T04:53:04Z","title_canon_sha256":"a0256f547042694e5a7dde5c80de3445b09a946ae777704c217b5746680c8028"},"schema_version":"1.0","source":{"id":"2401.09722","kind":"arxiv","version":2}},"canonical_sha256":"a3d73b4d9386ddbe45e7fdd531e62f0ef34fcc92cb913ab48fa52d7cf13bd894","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3d73b4d9386ddbe45e7fdd531e62f0ef34fcc92cb913ab48fa52d7cf13bd894","first_computed_at":"2026-07-05T09:19:26.015534Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:19:26.015534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X7TpDCyamDZKBHcn1fJuGqDXnizeA9JgOHwLuumJvu3sC2FebdbkhEnOPLZvrTHdtJ075JZY7GUbqGc/g3cXBA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:19:26.016052Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.09722","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc5ab4bcced4418fa173cd4d089b00e4b4635eecceb142b333636071222df1fe","sha256:cef7e9204486e640dbad97ccdcb7731524614537afde813c3b8b5ccaf7f1652c"],"state_sha256":"42fc598454d72871d07aa8aef282ce2cd33876efd1463e46c0da7531590a83ee"}