{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:6RFQKB6QUTV5WV76RCP6X7E2ZP","short_pith_number":"pith:6RFQKB6Q","schema_version":"1.0","canonical_sha256":"f44b0507d0a4ebdb57fe889febfc9acbf71a3aea98968b83e52e9c1dc2243794","source":{"kind":"arxiv","id":"1507.04534","version":1},"attestation_state":"computed","paper":{"title":"NuSTAR discovery of an unusually steady long-term spin-up of the Be binary 2RXP J130159.6-635806","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"1), (10) Lawrence Livermore National Laboratory, (11) Cahill Center for Astronomy, (12) Columbia Astrophysics Laboratory, (13) Department of Physics, (14) European Southern Observatory, 15), (15) Department of Astronomy, (16) Jet Propulsion Laboratory, (17) NASA Goddard Space Flight Center, 2), (2) Space Research Institute (IKI), (3) Tuorla Observatory, (4) MIT Kavli Institute for Astrophysics, (5) Observatoire Midi-Pyrenees, 6), (6) CNRS, (7) Dublin City University, 8), (8) Dublin Institute for Advanced Studies, (9) DTU Space - National Space Institute, Alexander A. Lutovinov (2), Astronomy, Astrophysics, CA, California Institute of Technology, Cambridge, Charles J. Hailey (12), Columbia University, Daniel Stern (16), Deepto Chakrabarty (4), Denmark, Department of Physics, Farid Rahoui (14, Felix Fuerst (11), Finland, Finn E. Christensen (9), Fiona A. Harrison (11), France, Garching bei Muenchen, George B. Lansbury (13), Germany, Greenbelt, Harvard University, Institut de Recherche en Astrophysique et Planetologie, Ireland, John A. Tomsick (1), Livermore, MA, Masha Chernyakova (7, Matteo Bachetti (5, MD, Moscow, New York, Pasadena, Roman A. Krivonos (1, Russia, Russian Academy of Sciences, Sergey S. Tsygankov (3, Space Research, Steven E. Boggs (1), Technical University of Denmark, Toulouse, UK, Universite de Toulouse, University of Durham, University of Turku, USA, USA), William W. Craig (10, William W. Zhang (17) ((1) SSL-UC Berkeley","submitted_at":"2015-07-16T11:58:02Z","abstract_excerpt":"We present spectral and timing analysis of NuSTAR observations of the accreting X-ray pulsar 2RXP J130159.6-635806. The source was serendipitously observed during a campaign focused on the gamma-ray binary PSR B1259-63 and was later targeted for a dedicated observation. The spectrum has a typical shape for accreting X-ray pulsars, consisting of a simple power law with an exponential cutoff starting at ~7 keV with a folding energy of E_fold=~18 keV. There is also an indication of the presence of a 6.4 keV iron line in the spectrum at the ~3 sigma significance level. NuSTAR measurements of the p"},"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":"1507.04534","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-07-16T11:58:02Z","cross_cats_sorted":[],"title_canon_sha256":"301a880c316beb1718d7e5e156952338fe5b59437b970a88845a25988bce73ef","abstract_canon_sha256":"12e06097f3a75f99466915e93e618cee6ff37481042d591af994047d523d21b2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:47.640357Z","signature_b64":"Zq4IEWQn6YF9mCpI0ykFaaC8vSHqjo+XDH4XferURI0VW37uPOjxeKHzlak9lWco51fWxMN9FUueoU+16uzeDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f44b0507d0a4ebdb57fe889febfc9acbf71a3aea98968b83e52e9c1dc2243794","last_reissued_at":"2026-05-18T01:34:47.639865Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:47.639865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"NuSTAR discovery of an unusually steady long-term spin-up of the Be binary 2RXP J130159.6-635806","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"1), (10) Lawrence Livermore National Laboratory, (11) Cahill Center for Astronomy, (12) Columbia Astrophysics Laboratory, (13) Department of Physics, (14) European Southern Observatory, 15), (15) Department of Astronomy, (16) Jet Propulsion Laboratory, (17) NASA Goddard Space Flight Center, 2), (2) Space Research Institute (IKI), (3) Tuorla Observatory, (4) MIT Kavli Institute for Astrophysics, (5) Observatoire Midi-Pyrenees, 6), (6) CNRS, (7) Dublin City University, 8), (8) Dublin Institute for Advanced Studies, (9) DTU Space - National Space Institute, Alexander A. Lutovinov (2), Astronomy, Astrophysics, CA, California Institute of Technology, Cambridge, Charles J. Hailey (12), Columbia University, Daniel Stern (16), Deepto Chakrabarty (4), Denmark, Department of Physics, Farid Rahoui (14, Felix Fuerst (11), Finland, Finn E. Christensen (9), Fiona A. Harrison (11), France, Garching bei Muenchen, George B. Lansbury (13), Germany, Greenbelt, Harvard University, Institut de Recherche en Astrophysique et Planetologie, Ireland, John A. Tomsick (1), Livermore, MA, Masha Chernyakova (7, Matteo Bachetti (5, MD, Moscow, New York, Pasadena, Roman A. Krivonos (1, Russia, Russian Academy of Sciences, Sergey S. Tsygankov (3, Space Research, Steven E. Boggs (1), Technical University of Denmark, Toulouse, UK, Universite de Toulouse, University of Durham, University of Turku, USA, USA), William W. Craig (10, William W. Zhang (17) ((1) SSL-UC Berkeley","submitted_at":"2015-07-16T11:58:02Z","abstract_excerpt":"We present spectral and timing analysis of NuSTAR observations of the accreting X-ray pulsar 2RXP J130159.6-635806. The source was serendipitously observed during a campaign focused on the gamma-ray binary PSR B1259-63 and was later targeted for a dedicated observation. The spectrum has a typical shape for accreting X-ray pulsars, consisting of a simple power law with an exponential cutoff starting at ~7 keV with a folding energy of E_fold=~18 keV. There is also an indication of the presence of a 6.4 keV iron line in the spectrum at the ~3 sigma significance level. NuSTAR measurements of the p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.04534","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":"1507.04534","created_at":"2026-05-18T01:34:47.639932+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.04534v1","created_at":"2026-05-18T01:34:47.639932+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.04534","created_at":"2026-05-18T01:34:47.639932+00:00"},{"alias_kind":"pith_short_12","alias_value":"6RFQKB6QUTV5","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"6RFQKB6QUTV5WV76","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"6RFQKB6Q","created_at":"2026-05-18T12:29:07.941421+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/6RFQKB6QUTV5WV76RCP6X7E2ZP","json":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP.json","graph_json":"https://pith.science/api/pith-number/6RFQKB6QUTV5WV76RCP6X7E2ZP/graph.json","events_json":"https://pith.science/api/pith-number/6RFQKB6QUTV5WV76RCP6X7E2ZP/events.json","paper":"https://pith.science/paper/6RFQKB6Q"},"agent_actions":{"view_html":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP","download_json":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP.json","view_paper":"https://pith.science/paper/6RFQKB6Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.04534&json=true","fetch_graph":"https://pith.science/api/pith-number/6RFQKB6QUTV5WV76RCP6X7E2ZP/graph.json","fetch_events":"https://pith.science/api/pith-number/6RFQKB6QUTV5WV76RCP6X7E2ZP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP/action/storage_attestation","attest_author":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP/action/author_attestation","sign_citation":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP/action/citation_signature","submit_replication":"https://pith.science/pith/6RFQKB6QUTV5WV76RCP6X7E2ZP/action/replication_record"}},"created_at":"2026-05-18T01:34:47.639932+00:00","updated_at":"2026-05-18T01:34:47.639932+00:00"}