{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:Y5GZP2LN3GBKRCYWHPWWO3ADUE","short_pith_number":"pith:Y5GZP2LN","schema_version":"1.0","canonical_sha256":"c74d97e96dd982a88b163bed676c03a107a1644e28a8ae06925a850d321f2680","source":{"kind":"arxiv","id":"1411.5434","version":2},"attestation_state":"computed","paper":{"title":"The Magnetic Field of the Ultraluminous X-ray Pulsar M82 X-2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Demosthenes Kazanas, Dimitris M. Christodoulou, Silas G. T. Laycock","submitted_at":"2014-11-20T04:05:48Z","abstract_excerpt":"Pulsations were recently detected from the ultraluminous X-ray source X-2 in M82. The newly discovered pulsar has been described as a common neutron star with a 1 TG magnetic field that accretes above the Eddington rate and as a magnetar-like pulsar with a 100 TG magnetic field that is above the quantum limit. We show here that this X-ray source is not exotic in any sense. The standard equations of accretion along field lines predict that, for the measured spin period $P_S$ and spinup rate $\\dot{P_S}$, the isotropic X-ray luminosity $L_X$ must be near the Eddington limit (i.e., $L_{X}\\approx 3"},"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":"1411.5434","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-20T04:05:48Z","cross_cats_sorted":[],"title_canon_sha256":"bec27ab8b7f26a38259c60338d4888217d318b1750b6e2397143dbab973e4522","abstract_canon_sha256":"4efbaa877981680a229a1aa1c95eb271e944564c00d4edaa5804bf861ac077b9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:13.626631Z","signature_b64":"RodQPNf5ailKMNBL8hLqbpdIy0SXgOGEzn0Y4KWVk7yIMkMC2mcdhCWj3ohQYbys/NUBWNGgSNDuOGPZGrXnDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c74d97e96dd982a88b163bed676c03a107a1644e28a8ae06925a850d321f2680","last_reissued_at":"2026-05-18T01:12:13.625999Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:13.625999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Magnetic Field of the Ultraluminous X-ray Pulsar M82 X-2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Demosthenes Kazanas, Dimitris M. Christodoulou, Silas G. T. Laycock","submitted_at":"2014-11-20T04:05:48Z","abstract_excerpt":"Pulsations were recently detected from the ultraluminous X-ray source X-2 in M82. The newly discovered pulsar has been described as a common neutron star with a 1 TG magnetic field that accretes above the Eddington rate and as a magnetar-like pulsar with a 100 TG magnetic field that is above the quantum limit. We show here that this X-ray source is not exotic in any sense. The standard equations of accretion along field lines predict that, for the measured spin period $P_S$ and spinup rate $\\dot{P_S}$, the isotropic X-ray luminosity $L_X$ must be near the Eddington limit (i.e., $L_{X}\\approx 3"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.5434","kind":"arxiv","version":2},"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":"1411.5434","created_at":"2026-05-18T01:12:13.626100+00:00"},{"alias_kind":"arxiv_version","alias_value":"1411.5434v2","created_at":"2026-05-18T01:12:13.626100+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.5434","created_at":"2026-05-18T01:12:13.626100+00:00"},{"alias_kind":"pith_short_12","alias_value":"Y5GZP2LN3GBK","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_16","alias_value":"Y5GZP2LN3GBKRCYW","created_at":"2026-05-18T12:28:57.508820+00:00"},{"alias_kind":"pith_short_8","alias_value":"Y5GZP2LN","created_at":"2026-05-18T12:28:57.508820+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/Y5GZP2LN3GBKRCYWHPWWO3ADUE","json":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE.json","graph_json":"https://pith.science/api/pith-number/Y5GZP2LN3GBKRCYWHPWWO3ADUE/graph.json","events_json":"https://pith.science/api/pith-number/Y5GZP2LN3GBKRCYWHPWWO3ADUE/events.json","paper":"https://pith.science/paper/Y5GZP2LN"},"agent_actions":{"view_html":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE","download_json":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE.json","view_paper":"https://pith.science/paper/Y5GZP2LN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1411.5434&json=true","fetch_graph":"https://pith.science/api/pith-number/Y5GZP2LN3GBKRCYWHPWWO3ADUE/graph.json","fetch_events":"https://pith.science/api/pith-number/Y5GZP2LN3GBKRCYWHPWWO3ADUE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE/action/storage_attestation","attest_author":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE/action/author_attestation","sign_citation":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE/action/citation_signature","submit_replication":"https://pith.science/pith/Y5GZP2LN3GBKRCYWHPWWO3ADUE/action/replication_record"}},"created_at":"2026-05-18T01:12:13.626100+00:00","updated_at":"2026-05-18T01:12:13.626100+00:00"}