{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:YEP5AMOKA4DBVXIL4THZI2O6QY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"7b607c4c32a6c8e2b65acef0a5e6463bbab1610fe080414c83c82b9ed5f6b816","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-10-14T16:40:08Z","title_canon_sha256":"112993ddc5bbeecd985395d726ab38a4a1add1f32da2c5d2f08ca6f77f9b50d9"},"schema_version":"1.0","source":{"id":"1410.3760","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.3760","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"arxiv_version","alias_value":"1410.3760v3","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.3760","created_at":"2026-05-18T02:17:33Z"},{"alias_kind":"pith_short_12","alias_value":"YEP5AMOKA4DB","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YEP5AMOKA4DBVXIL","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YEP5AMOK","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:bbca679bb872e7539cc48bdfb8c6f4b867fcd7931d557c5a8e72de7ff84cdeed","target":"graph","created_at":"2026-05-18T02:17:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"A recent joint XMM-Newton/Nuclear Spectroscopic Telescope Array (NuSTAR) observation of the accreting neutron star Cen X-4 ($L_{\\rm X}\\sim10^{33}{\\rm~erg~s}^{-1}$) revealed a hard power-law component ($\\Gamma\\sim1$-$1.5$) with a relatively low cut-off energy (~10 keV), suggesting bremsstrahlung emission. The physical requirements for bremsstrahlung combined with other observed properties of Cen X-4 suggest the emission comes from a boundary layer rather than the accretion flow. The accretion flow itself is thus undetected (with an upper limit of $L_{\\rm flow}\\lesssim0.3 L_{\\rm X}$). A deep sea","authors_text":"A. Patruno, C. Messenger, C. R. D'Angelo, J. K. Fridriksson","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-10-14T16:40:08Z","title":"The Radiative Efficiency of a Radiatively Inefficient Accretion Flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.3760","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:66189d6f9cb86b5d2fdb524813f646c6646f0c97731d377b3a332dfc9380b460","target":"record","created_at":"2026-05-18T02:17:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"7b607c4c32a6c8e2b65acef0a5e6463bbab1610fe080414c83c82b9ed5f6b816","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-10-14T16:40:08Z","title_canon_sha256":"112993ddc5bbeecd985395d726ab38a4a1add1f32da2c5d2f08ca6f77f9b50d9"},"schema_version":"1.0","source":{"id":"1410.3760","kind":"arxiv","version":3}},"canonical_sha256":"c11fd031ca07061add0be4cf9469de861c461182f492916f4fb8af4504a7827f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c11fd031ca07061add0be4cf9469de861c461182f492916f4fb8af4504a7827f","first_computed_at":"2026-05-18T02:17:33.561979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:33.561979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YNCYE4ugVr1V9V0NIdQQ7fji2q4HCDuLLAzdFO6iCFI6QEd5SV/D5Fir6D+OFZyTuXb8u4GxzWJ9j+CYWKqSAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:33.562712Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.3760","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66189d6f9cb86b5d2fdb524813f646c6646f0c97731d377b3a332dfc9380b460","sha256:bbca679bb872e7539cc48bdfb8c6f4b867fcd7931d557c5a8e72de7ff84cdeed"],"state_sha256":"a947df9bac560f4c7f3b259f72dda3f0752387eff4f555a916898380c4af66dc"}