{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6VC5AMOU3D3SZW7HTFIJKUWDFT","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":"6b088bce7d84b5de69dfa2473e3bf3bde3777c2b86fb4cb0db316bb9d582e9c4","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-08T05:19:32Z","title_canon_sha256":"9bf602ef8f1c07ed76817ffad2d1043e9483d156b505e8e00a37d11e6f75031c"},"schema_version":"1.0","source":{"id":"1901.02159","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.02159","created_at":"2026-05-17T23:43:37Z"},{"alias_kind":"arxiv_version","alias_value":"1901.02159v2","created_at":"2026-05-17T23:43:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.02159","created_at":"2026-05-17T23:43:37Z"},{"alias_kind":"pith_short_12","alias_value":"6VC5AMOU3D3S","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"6VC5AMOU3D3SZW7H","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"6VC5AMOU","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:b97fdc8056768c1557081e3b89f1464d492fb8a3e474174e149d9ff14683d25b","target":"graph","created_at":"2026-05-17T23:43:37Z","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":"We use the Fisher information matrix method to calculate the parameter estimation accuracy of inspiraling supermassive black holes binaries for TianQin, a space-borne laser interferometric detector aimed at detecting gravitational waves in the millihertz frequency band. The `restricted' post-Newtonian waveform in which third order post-Newtonian (3PN) phase including spin effects (spin-orbit $\\beta$ and spin-spin $\\sigma$) and first-order eccentricity contribution is employed. Monte Carlo simulations using $10^3$ binaries for mass pairs with component masses in the range of $({10^5},{10^7}){M_","authors_text":"Hai-Tian Wang, Wen-Fan Feng, Xin-Chun Hu, Yan Wang, Yi-Ming Hu","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-08T05:19:32Z","title":"Preliminary study on parameter estimation accuracy of supermassive black hole binary inspirals for TianQin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.02159","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":"sha256:7bffe30d1a60f36e513041c142644c5a48cbfcef028279b1e3dfa2d9bd3cabdb","target":"record","created_at":"2026-05-17T23:43:37Z","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":"6b088bce7d84b5de69dfa2473e3bf3bde3777c2b86fb4cb0db316bb9d582e9c4","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-01-08T05:19:32Z","title_canon_sha256":"9bf602ef8f1c07ed76817ffad2d1043e9483d156b505e8e00a37d11e6f75031c"},"schema_version":"1.0","source":{"id":"1901.02159","kind":"arxiv","version":2}},"canonical_sha256":"f545d031d4d8f72cdbe799509552c32ce8c6b053768ab9711404a1c642374a79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f545d031d4d8f72cdbe799509552c32ce8c6b053768ab9711404a1c642374a79","first_computed_at":"2026-05-17T23:43:37.399003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:37.399003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cnsOTfv1MAdyu316tMFKs7H0Unkfw4DuU2qa1ZEgzRS7Qh95iE5qGPZvHphrpKsOqlt9dlzrBI6h3vcFgzNHBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:37.399581Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.02159","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bffe30d1a60f36e513041c142644c5a48cbfcef028279b1e3dfa2d9bd3cabdb","sha256:b97fdc8056768c1557081e3b89f1464d492fb8a3e474174e149d9ff14683d25b"],"state_sha256":"6f4c628079acd88f05830e32ed6d934ff2e676d1628a37f9e092c1c89dfc1b53"}