{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7XRGLORPOBRPLCNQAEFU6HOZT5","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":"01311da01313a13e5443109bc0c47c4e226a094707cc2ee0c675b0a9f07351ac","cross_cats_sorted":["physics.hist-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-11-14T18:13:45Z","title_canon_sha256":"2f312f56cecbfdc4bf263ba3961cb65982916fe3f1ff8d3fe3941d999cf45a3b"},"schema_version":"1.0","source":{"id":"1411.3997","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.3997","created_at":"2026-05-18T01:46:22Z"},{"alias_kind":"arxiv_version","alias_value":"1411.3997v1","created_at":"2026-05-18T01:46:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3997","created_at":"2026-05-18T01:46:22Z"},{"alias_kind":"pith_short_12","alias_value":"7XRGLORPOBRP","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7XRGLORPOBRPLCNQ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7XRGLORP","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:68be14050f6a504d689969c97cf3eb00c1fb8c425495542f13d8081f745b148f","target":"graph","created_at":"2026-05-18T01:46:22Z","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":"The evolution of black-hole binaries in vacuum spacetimes constitutes the two-body problem in general relativity. The solution of this problem in the framework of the Einstein field equations is a substantially more complex exercise than that of the dynamics of two point masses in Newtonian gravity, but it also presents us with a wealth of new exciting physics. Numerical methods are likely the only method to compute the dynamics of black-hole systems in the fully non-linear regime and have been pursued since the 1960s, culminating in dramatic breakthroughs in 2005. Here we review the methodolo","authors_text":"Ulrich Sperhake","cross_cats":["physics.hist-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-11-14T18:13:45Z","title":"The numerical relativity breakthrough for binary black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3997","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:cbbd04633a755a9c1c4a5b450921470b0fb3b83359093c9e6018a984c78e2c10","target":"record","created_at":"2026-05-18T01:46:22Z","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":"01311da01313a13e5443109bc0c47c4e226a094707cc2ee0c675b0a9f07351ac","cross_cats_sorted":["physics.hist-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-11-14T18:13:45Z","title_canon_sha256":"2f312f56cecbfdc4bf263ba3961cb65982916fe3f1ff8d3fe3941d999cf45a3b"},"schema_version":"1.0","source":{"id":"1411.3997","kind":"arxiv","version":1}},"canonical_sha256":"fde265ba2f7062f589b0010b4f1dd99f6fd7be33238854581cef445a0a41b723","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fde265ba2f7062f589b0010b4f1dd99f6fd7be33238854581cef445a0a41b723","first_computed_at":"2026-05-18T01:46:22.237671Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:22.237671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ppu13dm5Q6Msk1cr9xVz9R1CopY6VwhmrfdNZwxhEkdxe7JtfBReVvcaZm2JH3bf6YIb/0OTdWpOl3zj0hxVAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:22.238168Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.3997","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbbd04633a755a9c1c4a5b450921470b0fb3b83359093c9e6018a984c78e2c10","sha256:68be14050f6a504d689969c97cf3eb00c1fb8c425495542f13d8081f745b148f"],"state_sha256":"910179f9bbbbf69ca7ae5727d712b3a63636536045470286f32bb3de6cc5103f"}