{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BRHV225OWPIW6PCVGFZZXH3FQW","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":"6974a922fd09a5873f3951f6b8cd17a543a64365285cbf512eeea9ebeb08bd70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-15T12:39:53Z","title_canon_sha256":"06906a7d4382d5565bec79b220acd54ebcd4e6061769400863ee1703c7a2b806"},"schema_version":"1.0","source":{"id":"1210.4004","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.4004","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"arxiv_version","alias_value":"1210.4004v1","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.4004","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"pith_short_12","alias_value":"BRHV225OWPIW","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BRHV225OWPIW6PCV","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BRHV225O","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:a94ee3e0490435fe4caa2ef1d1b77bda665f0c9c7b2bdf4dc383166ea26c1a42","target":"graph","created_at":"2026-05-18T01:53:55Z","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"},"paper":{"abstract_excerpt":"Context.Interpretation of light curves of many types of binary stars requires the inclusion of the (cor)relation between surface brightness and local effective gravity. Until recently, this correlation has always been modeled by a power law relating the flux or the effective temperature and the effective gravity, namely T_eff {\\alpha} g_eff^{\\beta}.\n  Aims. We look for a simple model that can describe the variations of the flux at the surface of stars belonging to a binary system.\n  Methods. This model assumes that the energy flux is a divergence-free vector anti-parallel to the effective grav","authors_text":"Francisco Espinosa Lara, Michel Rieutord","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-15T12:39:53Z","title":"Gravity Darkening in Binary Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4004","kind":"arxiv","version":1},"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":"sha256:76857e6d53b270ca7b31bbc5bee78b7bf8f7d3e50813d40c601b3acb920aaa9e","target":"record","created_at":"2026-05-18T01:53:55Z","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":"6974a922fd09a5873f3951f6b8cd17a543a64365285cbf512eeea9ebeb08bd70","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-15T12:39:53Z","title_canon_sha256":"06906a7d4382d5565bec79b220acd54ebcd4e6061769400863ee1703c7a2b806"},"schema_version":"1.0","source":{"id":"1210.4004","kind":"arxiv","version":1}},"canonical_sha256":"0c4f5d6baeb3d16f3c5531739b9f6585b87c91af7e59488ee4a6c5542ff0c6d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c4f5d6baeb3d16f3c5531739b9f6585b87c91af7e59488ee4a6c5542ff0c6d2","first_computed_at":"2026-05-18T01:53:55.273753Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:55.273753Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8DwhPYjjFArJXld9LRDmORK0foVbDicAo5QfkFN3FhdmgVZQb5N+77Ue58qTUnI00yYTMZ3GvcyCx9+PHwD1BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:55.274459Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.4004","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76857e6d53b270ca7b31bbc5bee78b7bf8f7d3e50813d40c601b3acb920aaa9e","sha256:a94ee3e0490435fe4caa2ef1d1b77bda665f0c9c7b2bdf4dc383166ea26c1a42"],"state_sha256":"0aa268c5ab3845b7237d9b0cc69657d54f231749870bcca6004a74e3de5d3f52"}