{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:X3Q2ANIM7BIEFANV3EEVTJQVC3","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":"f05401b715658b63f3d064d679cd818d6249ae6f20c61e0a4f643acbe3823014","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-06-05T21:05:19Z","title_canon_sha256":"ac43d8b1b7fad9fdddf85f543982a53f57877d07a8cc72d02c8f3879677c66bf"},"schema_version":"1.0","source":{"id":"astro-ph/0306130","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0306130","created_at":"2026-07-04T15:38:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0306130v2","created_at":"2026-07-04T15:38:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0306130","created_at":"2026-07-04T15:38:05Z"},{"alias_kind":"pith_short_12","alias_value":"X3Q2ANIM7BIE","created_at":"2026-07-04T15:38:05Z"},{"alias_kind":"pith_short_16","alias_value":"X3Q2ANIM7BIEFANV","created_at":"2026-07-04T15:38:05Z"},{"alias_kind":"pith_short_8","alias_value":"X3Q2ANIM","created_at":"2026-07-04T15:38:05Z"}],"graph_snapshots":[{"event_id":"sha256:76d7bd645224274ce129d2303b743cf5654d8abbed1aaa6ace7b39f7a89457a2","target":"graph","created_at":"2026-07-04T15:38:05Z","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/0306130/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new proper motion measurements and simultaneous orbital solutions for three newly identified (S0-16, S0-19, and S0-20) and four previously known (S0-1, S0-2, S0-4, and S0-5) stars at the Galactic Center. This analysis pinpoints the Galaxy's central dark mass to within +-1 milli-arcsec and, for the first time from orbital dynamics, limits its proper motion to 1.5+-0.5 mas/y, which is consistent with our derivation of the position of Sgr A* in the infrared reference frame (+-10 mas). The estimated central dark mass from orbital motions is 3.7 (+-0.2) x 10^6 (Ro/8kpc)^3 Mo; this is a m","authors_text":"A. M. Ghez, A. Tanner, E. E. Becklin, G. Duchene, J. R. Lu, M. Morris, S. D. Hornstein, S. Salim","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-06-05T21:05:19Z","title":"Stellar Orbits Around the Galactic Center Black Hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0306130","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:baf54df1ee461b3077a091f0d8e6c9dddd437384182a407b848f1a70802d44aa","target":"record","created_at":"2026-07-04T15:38:05Z","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":"f05401b715658b63f3d064d679cd818d6249ae6f20c61e0a4f643acbe3823014","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-06-05T21:05:19Z","title_canon_sha256":"ac43d8b1b7fad9fdddf85f543982a53f57877d07a8cc72d02c8f3879677c66bf"},"schema_version":"1.0","source":{"id":"astro-ph/0306130","kind":"arxiv","version":2}},"canonical_sha256":"bee1a0350cf8504281b5d90959a61516f24d104d12f59ffea8c217c3a9dea157","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bee1a0350cf8504281b5d90959a61516f24d104d12f59ffea8c217c3a9dea157","first_computed_at":"2026-07-04T15:38:05.892721Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:38:05.892721Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SGAKdPPaEuTbZd6XWUBt/5SW7+sFJartUuBs3/NG4RQRwICsQiSAt/X3t/j3+hh0B95TkAahAaRNbqKmNSrnAA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:38:05.893143Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0306130","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:baf54df1ee461b3077a091f0d8e6c9dddd437384182a407b848f1a70802d44aa","sha256:76d7bd645224274ce129d2303b743cf5654d8abbed1aaa6ace7b39f7a89457a2"],"state_sha256":"9a645fb1b9ad2bd5fe5a78ff7addeb5af3f9233065ac2694dc9417e1172084b5"}