{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:F27AU6WNKK2OIDKAQDI6NINZHH","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":"09aeeb6e30e03b45614a8089886ea4881d8eb9c7215da4737d3fb5c1bfabab51","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-01-23T08:25:50Z","title_canon_sha256":"d5b26571dc85363e06ab8c4868e3824d28561442a8233d00c517f1d4635c1983"},"schema_version":"1.0","source":{"id":"2401.12555","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.12555","created_at":"2026-07-05T07:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"2401.12555v2","created_at":"2026-07-05T07:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.12555","created_at":"2026-07-05T07:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"F27AU6WNKK2O","created_at":"2026-07-05T07:42:23Z"},{"alias_kind":"pith_short_16","alias_value":"F27AU6WNKK2OIDKA","created_at":"2026-07-05T07:42:23Z"},{"alias_kind":"pith_short_8","alias_value":"F27AU6WN","created_at":"2026-07-05T07:42:23Z"}],"graph_snapshots":[{"event_id":"sha256:d2b20a67f2ccbd02a2b7ed0452f3bf75c4866dd219e98446bca5cf7ef2ffcd2f","target":"graph","created_at":"2026-07-05T07:42:23Z","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/2401.12555/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the first estimate of the intrinsic binary fraction of young stars across the central $\\approx$ 0.4 pc surrounding the supermassive black hole (SMBH) at the Milky Way Galactic center (GC). This experiment searched for photometric variability in 102 young stars, using 119 nights of 10\"-wide adaptive optics imaging observations taken at Keck Observatory over 16 years in the K'- and H-bands. We photometrically detected three binary stars, all of which are situated more than 1\" (0.04 pc) from the SMBH and one of which, S2-36, is newly reported here with spectroscopic confirmation. To co","authors_text":"Abhimat K. Gautam, Andrea M. Ghez, Anna Ciurlo, Devin S. Chu, Jessica R. Lu, Mark R. Morris, Matthew W. Hosek Jr., Shoko Sakai, Smadar Naoz, Tuan Do, Zoe Haggard","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-01-23T08:25:50Z","title":"An Estimate of the Binary Star Fraction Among Young Stars at the Galactic Center: Possible Evidence of a Radial Dependence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.12555","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:d85dbd9d1b5727652ec42ea65af97d5069c170781b0db4a3d39e319f89776ff3","target":"record","created_at":"2026-07-05T07:42:23Z","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":"09aeeb6e30e03b45614a8089886ea4881d8eb9c7215da4737d3fb5c1bfabab51","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-01-23T08:25:50Z","title_canon_sha256":"d5b26571dc85363e06ab8c4868e3824d28561442a8233d00c517f1d4635c1983"},"schema_version":"1.0","source":{"id":"2401.12555","kind":"arxiv","version":2}},"canonical_sha256":"2ebe0a7acd52b4e40d4080d1e6a1b939fc792c0ca84106260c477b71eb3bdb3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ebe0a7acd52b4e40d4080d1e6a1b939fc792c0ca84106260c477b71eb3bdb3d","first_computed_at":"2026-07-05T07:42:23.209967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:42:23.209967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s2nfDWiipI1EHtLY4BzBzHvQQvKF4RMrSf74iwzxouyyAFqY3QJJnf15GhRrcPwpXnYke+boJOiJyQ387k5RCw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:42:23.210520Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.12555","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d85dbd9d1b5727652ec42ea65af97d5069c170781b0db4a3d39e319f89776ff3","sha256:d2b20a67f2ccbd02a2b7ed0452f3bf75c4866dd219e98446bca5cf7ef2ffcd2f"],"state_sha256":"dd579bbf59c8d7493029b62af4d8c3bdfbb88343e1317c5afc68f71fa33b1687"}