{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:426AWXDUMVFK74VSQTAIBUW4QJ","short_pith_number":"pith:426AWXDU","schema_version":"1.0","canonical_sha256":"e6bc0b5c74654aaff2b284c080d2dc8244090d094d666c2eeda2e183f007a574","source":{"kind":"arxiv","id":"1701.00733","version":1},"attestation_state":"computed","paper":{"title":"Fast spectral variations of OBA stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.E. Kostenkov, A.F. Kholtygin, A. Valeev, M. Schoeller, S. Fabrika, S. Hubrig, V.V. Dushin","submitted_at":"2017-01-03T16:05:54Z","abstract_excerpt":"Our search for magnetic fields in selected OBA stars using FOcal Reducer low dispersion Spectrographs FORS 1 and FORS 2 in spectropolarimetric mode revealed the presence of strong line profile variations (LPV) in spectra of magnetic OBA stars. More specifically, we detected moderate line profile variations of selected lines on a time scale of minutes in FORS 2 spectra of the A0 supergiant HD 92207 (Hubrig et al. 2014). Recently, we investigated the variability of line profiles of selected OBA stars with the multi-mode focal reducer SCORPIO at the 6-meter BTA telescope. We discovered regular va"},"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":"1701.00733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-01-03T16:05:54Z","cross_cats_sorted":[],"title_canon_sha256":"8fc450626ca344c207d2da9e60a88af5ecc6ce37ad50c350e0c393ea779913c6","abstract_canon_sha256":"7d262577bf5365e024cd98f57480fc42c5d5cb3b7f6680252af29b307458975b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:28.358436Z","signature_b64":"bawX9ct4eAx5demvhRcMopwHLO44SAEgTLetawx/9+MJBXHH5HkKHzBTOBnWHuqL0220MRd8bZ6S1BPc5uLaAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6bc0b5c74654aaff2b284c080d2dc8244090d094d666c2eeda2e183f007a574","last_reissued_at":"2026-05-18T00:53:28.358019Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:28.358019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fast spectral variations of OBA stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.E. Kostenkov, A.F. Kholtygin, A. Valeev, M. Schoeller, S. Fabrika, S. Hubrig, V.V. Dushin","submitted_at":"2017-01-03T16:05:54Z","abstract_excerpt":"Our search for magnetic fields in selected OBA stars using FOcal Reducer low dispersion Spectrographs FORS 1 and FORS 2 in spectropolarimetric mode revealed the presence of strong line profile variations (LPV) in spectra of magnetic OBA stars. More specifically, we detected moderate line profile variations of selected lines on a time scale of minutes in FORS 2 spectra of the A0 supergiant HD 92207 (Hubrig et al. 2014). Recently, we investigated the variability of line profiles of selected OBA stars with the multi-mode focal reducer SCORPIO at the 6-meter BTA telescope. We discovered regular va"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.00733","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":"1701.00733","created_at":"2026-05-18T00:53:28.358085+00:00"},{"alias_kind":"arxiv_version","alias_value":"1701.00733v1","created_at":"2026-05-18T00:53:28.358085+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.00733","created_at":"2026-05-18T00:53:28.358085+00:00"},{"alias_kind":"pith_short_12","alias_value":"426AWXDUMVFK","created_at":"2026-05-18T12:30:58.224056+00:00"},{"alias_kind":"pith_short_16","alias_value":"426AWXDUMVFK74VS","created_at":"2026-05-18T12:30:58.224056+00:00"},{"alias_kind":"pith_short_8","alias_value":"426AWXDU","created_at":"2026-05-18T12:30:58.224056+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/426AWXDUMVFK74VSQTAIBUW4QJ","json":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ.json","graph_json":"https://pith.science/api/pith-number/426AWXDUMVFK74VSQTAIBUW4QJ/graph.json","events_json":"https://pith.science/api/pith-number/426AWXDUMVFK74VSQTAIBUW4QJ/events.json","paper":"https://pith.science/paper/426AWXDU"},"agent_actions":{"view_html":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ","download_json":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ.json","view_paper":"https://pith.science/paper/426AWXDU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1701.00733&json=true","fetch_graph":"https://pith.science/api/pith-number/426AWXDUMVFK74VSQTAIBUW4QJ/graph.json","fetch_events":"https://pith.science/api/pith-number/426AWXDUMVFK74VSQTAIBUW4QJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ/action/storage_attestation","attest_author":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ/action/author_attestation","sign_citation":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ/action/citation_signature","submit_replication":"https://pith.science/pith/426AWXDUMVFK74VSQTAIBUW4QJ/action/replication_record"}},"created_at":"2026-05-18T00:53:28.358085+00:00","updated_at":"2026-05-18T00:53:28.358085+00:00"}