{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:EFSDC4VQHV6366AZJ3TCGC6EDP","short_pith_number":"pith:EFSDC4VQ","schema_version":"1.0","canonical_sha256":"21643172b03d7dbf78194ee6230bc41bdabaa0009a33dca2c3ab5977e9471f89","source":{"kind":"arxiv","id":"1604.03562","version":1},"attestation_state":"computed","paper":{"title":"Identifying IGR J14091-6108 as a magnetic CV with a massive white dwarf using X-ray and optical observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Farid Rahoui (ESO, Harvard), Jay Strader (MSU), John A. Tomsick (SSL/UCB), Laura Chomiuk (MSU), Maica Clavel (SSL/UCB), Roman Krivonos (Space Research Institute, Russian Academy of Sciences)","submitted_at":"2016-04-12T20:01:43Z","abstract_excerpt":"IGR J14091-6108 is a Galactic X-ray source known to have an iron emission line, a hard X-ray spectrum, and an optical counterpart. Here, we report on X-ray observations of the source with XMM-Newton and NuSTAR as well as optical spectroscopy with ESO/VLT and NOAO/SOAR. In the X-rays, this provides data with much better statistical quality than the previous observations, and this is the first report of the optical spectrum. Timing analysis of the XMM data shows a very significant detection of 576.3+/-0.6 s period. The signal has a pulsed fraction of 30%+/-3% in the 0.3-12 keV range and shows a "},"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":"1604.03562","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-04-12T20:01:43Z","cross_cats_sorted":[],"title_canon_sha256":"29939e2b5fa7b68f063bfe3ef40910ca588647e51822a009df4faa5e884dad96","abstract_canon_sha256":"a561ec7ff3e5de37a170da104679f2b6e0d6a0f3b17373024827bc3a98045c9b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:16:12.831601Z","signature_b64":"UrsspuYE9y9jE/ca9kxGMuud6wvxBsEw5J7VmjtJqi2APJpo2Y5AZTRTkTOCNINnrV00O5bUUTd5z6ENHhx4CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21643172b03d7dbf78194ee6230bc41bdabaa0009a33dca2c3ab5977e9471f89","last_reissued_at":"2026-05-18T01:16:12.830958Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:16:12.830958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Identifying IGR J14091-6108 as a magnetic CV with a massive white dwarf using X-ray and optical observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Farid Rahoui (ESO, Harvard), Jay Strader (MSU), John A. Tomsick (SSL/UCB), Laura Chomiuk (MSU), Maica Clavel (SSL/UCB), Roman Krivonos (Space Research Institute, Russian Academy of Sciences)","submitted_at":"2016-04-12T20:01:43Z","abstract_excerpt":"IGR J14091-6108 is a Galactic X-ray source known to have an iron emission line, a hard X-ray spectrum, and an optical counterpart. Here, we report on X-ray observations of the source with XMM-Newton and NuSTAR as well as optical spectroscopy with ESO/VLT and NOAO/SOAR. In the X-rays, this provides data with much better statistical quality than the previous observations, and this is the first report of the optical spectrum. Timing analysis of the XMM data shows a very significant detection of 576.3+/-0.6 s period. The signal has a pulsed fraction of 30%+/-3% in the 0.3-12 keV range and shows a "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.03562","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":"1604.03562","created_at":"2026-05-18T01:16:12.831055+00:00"},{"alias_kind":"arxiv_version","alias_value":"1604.03562v1","created_at":"2026-05-18T01:16:12.831055+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.03562","created_at":"2026-05-18T01:16:12.831055+00:00"},{"alias_kind":"pith_short_12","alias_value":"EFSDC4VQHV63","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"EFSDC4VQHV6366AZ","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"EFSDC4VQ","created_at":"2026-05-18T12:30:12.583610+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/EFSDC4VQHV6366AZJ3TCGC6EDP","json":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP.json","graph_json":"https://pith.science/api/pith-number/EFSDC4VQHV6366AZJ3TCGC6EDP/graph.json","events_json":"https://pith.science/api/pith-number/EFSDC4VQHV6366AZJ3TCGC6EDP/events.json","paper":"https://pith.science/paper/EFSDC4VQ"},"agent_actions":{"view_html":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP","download_json":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP.json","view_paper":"https://pith.science/paper/EFSDC4VQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1604.03562&json=true","fetch_graph":"https://pith.science/api/pith-number/EFSDC4VQHV6366AZJ3TCGC6EDP/graph.json","fetch_events":"https://pith.science/api/pith-number/EFSDC4VQHV6366AZJ3TCGC6EDP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP/action/storage_attestation","attest_author":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP/action/author_attestation","sign_citation":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP/action/citation_signature","submit_replication":"https://pith.science/pith/EFSDC4VQHV6366AZJ3TCGC6EDP/action/replication_record"}},"created_at":"2026-05-18T01:16:12.831055+00:00","updated_at":"2026-05-18T01:16:12.831055+00:00"}