{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:JBAFLG42CCBFKUP5IGN2BVHXD4","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":"021b654dfd0a81237fc049dbb18729ea0c515ce1974fbd3ed40213d9320b657e","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T18:01:07Z","title_canon_sha256":"a995de78f253fd5d3ef2372f6bdac67c0a0e4dc014574617b11b167bce6acdc2"},"schema_version":"1.0","source":{"id":"2304.07324","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.07324","created_at":"2026-07-05T06:35:27Z"},{"alias_kind":"arxiv_version","alias_value":"2304.07324v3","created_at":"2026-07-05T06:35:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.07324","created_at":"2026-07-05T06:35:27Z"},{"alias_kind":"pith_short_12","alias_value":"JBAFLG42CCBF","created_at":"2026-07-05T06:35:27Z"},{"alias_kind":"pith_short_16","alias_value":"JBAFLG42CCBFKUP5","created_at":"2026-07-05T06:35:27Z"},{"alias_kind":"pith_short_8","alias_value":"JBAFLG42","created_at":"2026-07-05T06:35:27Z"}],"graph_snapshots":[{"event_id":"sha256:3feec815578caf85fc522053f2483c3f40549b262e8e79ee6ec9a00a8c38d728","target":"graph","created_at":"2026-07-05T06:35:27Z","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/2304.07324/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present multi-epoch spectroscopic follow-up of a sample of ellipsoidal variables selected from Gaia DR3 as candidates for hosting quiescent black holes (BHs) and neutron stars (NSs). Our targets were identified as BH/NS candidates because their optical light curves -- when interpreted with models that attribute variability to tidal distortion of a star by a companion that contributes negligible light -- suggest that the companions are compact objects. From the likely BH/NS candidates identified in recent work accompanying Gaia DR3, we select 14 of the most promising targets for follow-up. W","authors_text":"Antonio C. Rodriguez, Benjamin Roulston, Jan van Roestel, Kareem El-Badry, Pranav Nagarajan","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T18:01:07Z","title":"Spectroscopic follow-up of black hole and neutron star candidates in ellipsoidal variables from Gaia DR3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.07324","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:e02dc139a18720ae32f43195cec2739b289d16275c6b0fecc68fcd40aa200266","target":"record","created_at":"2026-07-05T06:35:27Z","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":"021b654dfd0a81237fc049dbb18729ea0c515ce1974fbd3ed40213d9320b657e","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T18:01:07Z","title_canon_sha256":"a995de78f253fd5d3ef2372f6bdac67c0a0e4dc014574617b11b167bce6acdc2"},"schema_version":"1.0","source":{"id":"2304.07324","kind":"arxiv","version":3}},"canonical_sha256":"4840559b9a10825551fd419ba0d4f71f078d880330cafabbe9893f68df141bc2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4840559b9a10825551fd419ba0d4f71f078d880330cafabbe9893f68df141bc2","first_computed_at":"2026-07-05T06:35:27.265867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:35:27.265867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"H3Kmbq4RRS6RqtHStyGAhsUYC7Hc1bewoJK+eiLk6EAgmXQkt2aYO8fxb/YkpYbu5ZJQ9znk+sT+XGU46g8zDw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:35:27.266346Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.07324","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e02dc139a18720ae32f43195cec2739b289d16275c6b0fecc68fcd40aa200266","sha256:3feec815578caf85fc522053f2483c3f40549b262e8e79ee6ec9a00a8c38d728"],"state_sha256":"4e5bb0e7d27b2a7f1b4004b1905d7cc4b596fe79919a121ab482336c3a52adc1"}