{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:7TN456UI6NPCLH2NKIBVTCTOXC","short_pith_number":"pith:7TN456UI","schema_version":"1.0","canonical_sha256":"fcdbcefa88f35e259f4d5203598a6eb898b01bdaf84effb857835473f78a29b6","source":{"kind":"arxiv","id":"1210.6884","version":1},"attestation_state":"computed","paper":{"title":"PSR J1311-3430: A Heavyweight Neutron Star with a Flyweight Helium Companion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alexei V. Filippenko, Arne Rau, Holger J. Pletsch, Jeffery M. Silverman, Jochen Greiner, Jonathan Elliott, Roger W. Romani, S. Bradley Cenko","submitted_at":"2012-10-25T15:56:29Z","abstract_excerpt":"We have obtained initial spectroscopic observations and additional photometry of the newly discovered Pb=94min gamma-ray black-widow pulsar PSR J1311-3430. The Keck spectra show a He-dominated, nearly H-free photosphere and a large radial-velocity amplitude of 609.5+/-7.5km/s. Simultaneous seven-color GROND photometry further probes the heating of this companion, and shows the presence of a flaring infrared excess. We have modeled the quiescent light curve, constraining the orbital inclination and masses. Simple heated light-curve fits give M_NS=2.7Msun, but show systematic light-curve differe"},"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":"1210.6884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-25T15:56:29Z","cross_cats_sorted":[],"title_canon_sha256":"ac36bab68be620d0ea22d700174068332ad7d2719679c2af3eb0165d42e8f3c6","abstract_canon_sha256":"e3cb319913da5617818bb6262e8a96e16551256b5560adad8ded171cd51b5ace"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:37.621123Z","signature_b64":"AVTToukIiIO0AgQMAuLpUL/EtNLE3Ic346hQzLOzWD1XLK1gzqO4hzmKdzs3J4nffJzPQI2NmBSnhwIr6Ev1CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fcdbcefa88f35e259f4d5203598a6eb898b01bdaf84effb857835473f78a29b6","last_reissued_at":"2026-05-18T01:53:37.620581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:37.620581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"PSR J1311-3430: A Heavyweight Neutron Star with a Flyweight Helium Companion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alexei V. Filippenko, Arne Rau, Holger J. Pletsch, Jeffery M. Silverman, Jochen Greiner, Jonathan Elliott, Roger W. Romani, S. Bradley Cenko","submitted_at":"2012-10-25T15:56:29Z","abstract_excerpt":"We have obtained initial spectroscopic observations and additional photometry of the newly discovered Pb=94min gamma-ray black-widow pulsar PSR J1311-3430. The Keck spectra show a He-dominated, nearly H-free photosphere and a large radial-velocity amplitude of 609.5+/-7.5km/s. Simultaneous seven-color GROND photometry further probes the heating of this companion, and shows the presence of a flaring infrared excess. We have modeled the quiescent light curve, constraining the orbital inclination and masses. Simple heated light-curve fits give M_NS=2.7Msun, but show systematic light-curve differe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.6884","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":"1210.6884","created_at":"2026-05-18T01:53:37.620672+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.6884v1","created_at":"2026-05-18T01:53:37.620672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.6884","created_at":"2026-05-18T01:53:37.620672+00:00"},{"alias_kind":"pith_short_12","alias_value":"7TN456UI6NPC","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_16","alias_value":"7TN456UI6NPCLH2N","created_at":"2026-05-18T12:26:58.693483+00:00"},{"alias_kind":"pith_short_8","alias_value":"7TN456UI","created_at":"2026-05-18T12:26:58.693483+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/7TN456UI6NPCLH2NKIBVTCTOXC","json":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC.json","graph_json":"https://pith.science/api/pith-number/7TN456UI6NPCLH2NKIBVTCTOXC/graph.json","events_json":"https://pith.science/api/pith-number/7TN456UI6NPCLH2NKIBVTCTOXC/events.json","paper":"https://pith.science/paper/7TN456UI"},"agent_actions":{"view_html":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC","download_json":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC.json","view_paper":"https://pith.science/paper/7TN456UI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.6884&json=true","fetch_graph":"https://pith.science/api/pith-number/7TN456UI6NPCLH2NKIBVTCTOXC/graph.json","fetch_events":"https://pith.science/api/pith-number/7TN456UI6NPCLH2NKIBVTCTOXC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC/action/storage_attestation","attest_author":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC/action/author_attestation","sign_citation":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC/action/citation_signature","submit_replication":"https://pith.science/pith/7TN456UI6NPCLH2NKIBVTCTOXC/action/replication_record"}},"created_at":"2026-05-18T01:53:37.620672+00:00","updated_at":"2026-05-18T01:53:37.620672+00:00"}