{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:YH55Q6ITCZV2CVBUXJRY3RM25N","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":"7d5b56bf223daa997a39f83ec339c0c929a388464ddc21217a71d150b4f6289e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-09-24T00:40:52Z","title_canon_sha256":"ac8c94e31778081f63960429972d2dbd9745017e20c029404de8b167b4651d93"},"schema_version":"1.0","source":{"id":"astro-ph/9609157","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9609157","created_at":"2026-07-04T16:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9609157v3","created_at":"2026-07-04T16:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9609157","created_at":"2026-07-04T16:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"YH55Q6ITCZV2","created_at":"2026-07-04T16:00:15Z"},{"alias_kind":"pith_short_16","alias_value":"YH55Q6ITCZV2CVBU","created_at":"2026-07-04T16:00:15Z"},{"alias_kind":"pith_short_8","alias_value":"YH55Q6IT","created_at":"2026-07-04T16:00:15Z"}],"graph_snapshots":[{"event_id":"sha256:a0e9ca114b4d5550951083c1abca14e7cf3a9762f68f44bd4abd0dcf7a8babc2","target":"graph","created_at":"2026-07-04T16:00:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9609157/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strong, coherent, quasi-periodic brightness oscillations (QPOs) with frequencies ranging from about 300 Hz to 1200 Hz have been discovered with the Rossi X-ray Timing Explorer in the X-ray emission from some fifteen neutron stars in low-mass binary systems. Two simultaneous kilohertz QPOs differing in frequency by 250 to 350 Hertz have been detected in twelve of the fifteen sources. Here we propose a model for these QPOs. In this model the X-ray source is a neutron star with a surface magnetic field of 10^7 to 10^10 G and a spin frequency of a few hundred Hertz, accreting gas via a Keplerian d","authors_text":"Dimitrios Psaltis, Frederick K. Lamb, M. Coleman Miller","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1996-09-24T00:40:52Z","title":"Sonic-Point Model of Kilohertz Quasi-Periodic Brightness Oscillations in Low-Mass X-ray Binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9609157","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":"sha256:9256bbc9cd486e577cdea9a69207b8e357fd2c703bf7fc471730a5d5b8425185","target":"record","created_at":"2026-07-04T16:00:15Z","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":"7d5b56bf223daa997a39f83ec339c0c929a388464ddc21217a71d150b4f6289e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-09-24T00:40:52Z","title_canon_sha256":"ac8c94e31778081f63960429972d2dbd9745017e20c029404de8b167b4651d93"},"schema_version":"1.0","source":{"id":"astro-ph/9609157","kind":"arxiv","version":3}},"canonical_sha256":"c1fbd87913166ba15434ba638dc59aeb486a2ce695115d199bcceac978ffcc57","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1fbd87913166ba15434ba638dc59aeb486a2ce695115d199bcceac978ffcc57","first_computed_at":"2026-07-04T16:00:15.348865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:00:15.348865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1Bnmrtc+O8oYJ+KanZN15NoPPMMAFZ37A2nKnrANJSUMbPjwiLVHR488s1QwiV3XG0N1sXU26+uDfI1uANaPAw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:00:15.349233Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9609157","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9256bbc9cd486e577cdea9a69207b8e357fd2c703bf7fc471730a5d5b8425185","sha256:a0e9ca114b4d5550951083c1abca14e7cf3a9762f68f44bd4abd0dcf7a8babc2"],"state_sha256":"5cd4d1bd94ab531463f24781d7561c28e375d3c67dab52988e20f2a56fd444e7"}