{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:2ZR7PTFOAGY3BST47S3T35U54N","short_pith_number":"pith:2ZR7PTFO","schema_version":"1.0","canonical_sha256":"d663f7ccae01b1b0ca7cfcb73df69de354cb052e4170452ee4a3dc248abcc65f","source":{"kind":"arxiv","id":"1706.09511","version":2},"attestation_state":"computed","paper":{"title":"A Likely Redback Millisecond Pulsar Counterpart of 3FGL J0838.8-2829","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"J.P. Halpern, J. Strader, M. Li","submitted_at":"2017-06-28T23:28:26Z","abstract_excerpt":"We obtained new optical observations of the X-ray source XMMU J083850.38-282756.8, the previously proposed counterpart of the gamma-ray source 3FGL J0838.8-2829. Time-series photometry in the $r'$ band reveals periodic modulation of $\\approx1$ magnitude that is characteristic of the heating of the photosphere of a low-mass companion star by a compact object. The measured orbital period is 5.14817$\\pm$0.00012 hr. The shape of the light curve is variable, evidently due to the effects of flaring and asymmetric heating. Spectroscopy reveals a companion of type M1 or later, having a radial velocity"},"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":"1706.09511","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-06-28T23:28:26Z","cross_cats_sorted":[],"title_canon_sha256":"9ef479a52894d9d020a311c4c68aa70abbeabd48843a80f90142a60179622355","abstract_canon_sha256":"fbfe912f819d705a7aaf56423abdbc565a1b05d77df421dd614ab35fbab130ec"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:25.582719Z","signature_b64":"4baNmF+5asNJojG1bJz248RNjrDiImzNZs9iIYhb+ibXqijURieo9JKOEh5/On61xeowMWtVRiRJSj2q+76ODw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d663f7ccae01b1b0ca7cfcb73df69de354cb052e4170452ee4a3dc248abcc65f","last_reissued_at":"2026-05-18T00:38:25.582091Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:25.582091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Likely Redback Millisecond Pulsar Counterpart of 3FGL J0838.8-2829","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"J.P. Halpern, J. Strader, M. Li","submitted_at":"2017-06-28T23:28:26Z","abstract_excerpt":"We obtained new optical observations of the X-ray source XMMU J083850.38-282756.8, the previously proposed counterpart of the gamma-ray source 3FGL J0838.8-2829. Time-series photometry in the $r'$ band reveals periodic modulation of $\\approx1$ magnitude that is characteristic of the heating of the photosphere of a low-mass companion star by a compact object. The measured orbital period is 5.14817$\\pm$0.00012 hr. The shape of the light curve is variable, evidently due to the effects of flaring and asymmetric heating. Spectroscopy reveals a companion of type M1 or later, having a radial velocity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.09511","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":"1706.09511","created_at":"2026-05-18T00:38:25.582168+00:00"},{"alias_kind":"arxiv_version","alias_value":"1706.09511v2","created_at":"2026-05-18T00:38:25.582168+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.09511","created_at":"2026-05-18T00:38:25.582168+00:00"},{"alias_kind":"pith_short_12","alias_value":"2ZR7PTFOAGY3","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"2ZR7PTFOAGY3BST4","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"2ZR7PTFO","created_at":"2026-05-18T12:30:55.937587+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/2ZR7PTFOAGY3BST47S3T35U54N","json":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N.json","graph_json":"https://pith.science/api/pith-number/2ZR7PTFOAGY3BST47S3T35U54N/graph.json","events_json":"https://pith.science/api/pith-number/2ZR7PTFOAGY3BST47S3T35U54N/events.json","paper":"https://pith.science/paper/2ZR7PTFO"},"agent_actions":{"view_html":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N","download_json":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N.json","view_paper":"https://pith.science/paper/2ZR7PTFO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1706.09511&json=true","fetch_graph":"https://pith.science/api/pith-number/2ZR7PTFOAGY3BST47S3T35U54N/graph.json","fetch_events":"https://pith.science/api/pith-number/2ZR7PTFOAGY3BST47S3T35U54N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N/action/storage_attestation","attest_author":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N/action/author_attestation","sign_citation":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N/action/citation_signature","submit_replication":"https://pith.science/pith/2ZR7PTFOAGY3BST47S3T35U54N/action/replication_record"}},"created_at":"2026-05-18T00:38:25.582168+00:00","updated_at":"2026-05-18T00:38:25.582168+00:00"}