{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:JYKIPTMTLTJ3YDCVF6BUJR3YD2","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":"9fc69fbe1c534486b7425a25b4eb7d12cfe673034e9b1a84dc00a90fc84cdd1f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-06T18:32:44Z","title_canon_sha256":"b26fe9135249bfec793dfb93986657f9c642600564d9b39efe9862d15b1a9bb5"},"schema_version":"1.0","source":{"id":"astro-ph/0703123","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703123","created_at":"2026-07-04T15:21:55Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703123v2","created_at":"2026-07-04T15:21:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703123","created_at":"2026-07-04T15:21:55Z"},{"alias_kind":"pith_short_12","alias_value":"JYKIPTMTLTJ3","created_at":"2026-07-04T15:21:55Z"},{"alias_kind":"pith_short_16","alias_value":"JYKIPTMTLTJ3YDCV","created_at":"2026-07-04T15:21:55Z"},{"alias_kind":"pith_short_8","alias_value":"JYKIPTMT","created_at":"2026-07-04T15:21:55Z"}],"graph_snapshots":[{"event_id":"sha256:12cfcfa048c30590c5308324e734e9d33f7041036f4c7bb062f43798decbcb43","target":"graph","created_at":"2026-07-04T15:21:55Z","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/0703123/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a simple method for including the oblateness of a rapidly rotating neutron star when fitting X-ray light curves. In previous work we showed that the oblateness induced by rotation at frequencies above 300 Hz produces a geometric effect which needs to be accounted for when modelling light curves to extract constraints on the neutron star's mass and radius. In our model X-rays are emitted from the surface of an oblate neutron star and propagate to the observer along geodesics of the Schwarzschild metric for a spherical neutron star. Doppler effects due to rotation are added in the sam","authors_text":"Coire Cadeau, Denis A. Leahy, John Braga, Sharon M. Morsink","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-03-06T18:32:44Z","title":"The Oblate Schwarzschild Approximation for Light Curves of Rapidly Rotating Neutron Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703123","kind":"arxiv","version":2},"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:ad16029ed32c76507eb27ba3fa24f4451e84273e116b07d1115454aa13190d64","target":"record","created_at":"2026-07-04T15:21:55Z","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":"9fc69fbe1c534486b7425a25b4eb7d12cfe673034e9b1a84dc00a90fc84cdd1f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-06T18:32:44Z","title_canon_sha256":"b26fe9135249bfec793dfb93986657f9c642600564d9b39efe9862d15b1a9bb5"},"schema_version":"1.0","source":{"id":"astro-ph/0703123","kind":"arxiv","version":2}},"canonical_sha256":"4e1487cd935cd3bc0c552f8344c7781eaa66ce50cebbaf6dd1a04945a6188abd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e1487cd935cd3bc0c552f8344c7781eaa66ce50cebbaf6dd1a04945a6188abd","first_computed_at":"2026-07-04T15:21:55.318002Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:21:55.318002Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ioBuhu3Yl02th3/xtEUWtOmRh7YuTihpkK9EamfbKHTv9gJRBH6Zo/+5ETBe7AdB6ZAVt+6jt9GratVCwXJbBw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:21:55.318460Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0703123","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad16029ed32c76507eb27ba3fa24f4451e84273e116b07d1115454aa13190d64","sha256:12cfcfa048c30590c5308324e734e9d33f7041036f4c7bb062f43798decbcb43"],"state_sha256":"e395feb1979d0db7c4c22c753983acec77d1f34cd8a7b5f9978f2b98a3626e77"}