{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:FIMKVB5E3MWQ4WHGMTGHVJODHJ","short_pith_number":"pith:FIMKVB5E","schema_version":"1.0","canonical_sha256":"2a18aa87a4db2d0e58e664cc7aa5c33a519a299c4f10274101b34a7664c788bd","source":{"kind":"arxiv","id":"2006.10770","version":1},"attestation_state":"computed","paper":{"title":"Is HR 6819 a triple system containing a black hole? -- An alternative explanation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. J. Frost, C. Hawcroft, D. M. Bowman, G. Banyard, H. Sana, J. Bodensteiner, K. Dsilva, L. Mahy, M. Abdul-Masih, M. Fabry, M. Reggiani, P. Marchant, T. Shenar","submitted_at":"2020-06-18T18:00:04Z","abstract_excerpt":"HR 6819 was recently proposed to be a triple system consisting of an inner B-type giant + black hole binary with an orbital period of 40d and an outer Be tertiary. This interpretation is mainly based on two inferences: that the emission attributed to the outer Be star is stationary, and that the inner star, which is used as mass calibrator for the black hole, is a B-type giant. We re-investigate the properties of HR 6819 by spectral disentangling and an atmosphere analysis of the disentangled spectra to search for a possibly simpler alternative explanation for HR 6819. Disentangling implies th"},"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":"2006.10770","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-18T18:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"06aa6c93e42ccba4c0ca009fbf9351e5b7362e8fa1e9e6a74ee8262d7ee1c9db","abstract_canon_sha256":"fa338f011a7a789c65fc222377c3be77107cf8be18b874bf0c38eca6612cd8ba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:34:01.771160Z","signature_b64":"FrwYzxLiYqDPkwT2eJ9jZbEod+E9TanjQIhcxmkuJ2Q4jwdCFuWWbXY74D0B/oW2ozVlM6aPX6ImxjWe8zbMCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a18aa87a4db2d0e58e664cc7aa5c33a519a299c4f10274101b34a7664c788bd","last_reissued_at":"2026-07-05T01:34:01.770755Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:34:01.770755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Is HR 6819 a triple system containing a black hole? -- An alternative explanation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. J. Frost, C. Hawcroft, D. M. Bowman, G. Banyard, H. Sana, J. Bodensteiner, K. Dsilva, L. Mahy, M. Abdul-Masih, M. Fabry, M. Reggiani, P. Marchant, T. Shenar","submitted_at":"2020-06-18T18:00:04Z","abstract_excerpt":"HR 6819 was recently proposed to be a triple system consisting of an inner B-type giant + black hole binary with an orbital period of 40d and an outer Be tertiary. This interpretation is mainly based on two inferences: that the emission attributed to the outer Be star is stationary, and that the inner star, which is used as mass calibrator for the black hole, is a B-type giant. We re-investigate the properties of HR 6819 by spectral disentangling and an atmosphere analysis of the disentangled spectra to search for a possibly simpler alternative explanation for HR 6819. Disentangling implies th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.10770","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.10770/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2006.10770","created_at":"2026-07-05T01:34:01.770810+00:00"},{"alias_kind":"arxiv_version","alias_value":"2006.10770v1","created_at":"2026-07-05T01:34:01.770810+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.10770","created_at":"2026-07-05T01:34:01.770810+00:00"},{"alias_kind":"pith_short_12","alias_value":"FIMKVB5E3MWQ","created_at":"2026-07-05T01:34:01.770810+00:00"},{"alias_kind":"pith_short_16","alias_value":"FIMKVB5E3MWQ4WHG","created_at":"2026-07-05T01:34:01.770810+00:00"},{"alias_kind":"pith_short_8","alias_value":"FIMKVB5E","created_at":"2026-07-05T01:34:01.770810+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/FIMKVB5E3MWQ4WHGMTGHVJODHJ","json":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ.json","graph_json":"https://pith.science/api/pith-number/FIMKVB5E3MWQ4WHGMTGHVJODHJ/graph.json","events_json":"https://pith.science/api/pith-number/FIMKVB5E3MWQ4WHGMTGHVJODHJ/events.json","paper":"https://pith.science/paper/FIMKVB5E"},"agent_actions":{"view_html":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ","download_json":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ.json","view_paper":"https://pith.science/paper/FIMKVB5E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2006.10770&json=true","fetch_graph":"https://pith.science/api/pith-number/FIMKVB5E3MWQ4WHGMTGHVJODHJ/graph.json","fetch_events":"https://pith.science/api/pith-number/FIMKVB5E3MWQ4WHGMTGHVJODHJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ/action/storage_attestation","attest_author":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ/action/author_attestation","sign_citation":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ/action/citation_signature","submit_replication":"https://pith.science/pith/FIMKVB5E3MWQ4WHGMTGHVJODHJ/action/replication_record"}},"created_at":"2026-07-05T01:34:01.770810+00:00","updated_at":"2026-07-05T01:34:01.770810+00:00"}