{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:65GTPV3MALD7WQAC75MIFPOQYC","short_pith_number":"pith:65GTPV3M","schema_version":"1.0","canonical_sha256":"f74d37d76c02c7fb4002ff5882bdd0c0a522dbc1403fa15496763c277b937714","source":{"kind":"arxiv","id":"1810.10585","version":1},"attestation_state":"computed","paper":{"title":"Gravitational waveforms for high spin and high mass-ratio binary black holes: A synergistic use of numerical-relativity codes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Alessandra Buonanno, Harald P. Pfeiffer, Ian Hinder, Serguei Ossokine","submitted_at":"2018-10-24T19:38:27Z","abstract_excerpt":"Observation and characterisation of gravitational waves from binary black holes requires accurate knowledge of the expected waveforms. The late inspiral and merger phase of the waveform is obtained through direct numerical integration of the full 3-dimensional Einstein equations. The Spectral Einstein Code (SpEC) utilizes a multi-domain pseudo-spectral method tightly adapted to the geometry of the black holes; it is computationally efficient and accurate, but--for high mass-ratios and large spins--sometimes requires manual fine-tuning for the merger-phase of binaries. The Einstein Toolkit (ET)"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1810.10585","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-10-24T19:38:27Z","cross_cats_sorted":[],"title_canon_sha256":"66e81680068d34a99aadb78b17e8b9477c7acf7fb366ab1ebc29adcecea3e3b9","abstract_canon_sha256":"f2c10293a48cd9210ae02050f44e783af65ae4319c3e79c594435c64854fb608"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:11.781415Z","signature_b64":"4ZFP0YS1clnhELLlps7hanDD/ggkY2dllr/Wl+5XbiJgWkcUzMZwOarY/Dns4WdLVokItoGsJdA9cAE6L1/ICg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f74d37d76c02c7fb4002ff5882bdd0c0a522dbc1403fa15496763c277b937714","last_reissued_at":"2026-05-17T23:50:11.780752Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:11.780752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational waveforms for high spin and high mass-ratio binary black holes: A synergistic use of numerical-relativity codes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Alessandra Buonanno, Harald P. Pfeiffer, Ian Hinder, Serguei Ossokine","submitted_at":"2018-10-24T19:38:27Z","abstract_excerpt":"Observation and characterisation of gravitational waves from binary black holes requires accurate knowledge of the expected waveforms. The late inspiral and merger phase of the waveform is obtained through direct numerical integration of the full 3-dimensional Einstein equations. The Spectral Einstein Code (SpEC) utilizes a multi-domain pseudo-spectral method tightly adapted to the geometry of the black holes; it is computationally efficient and accurate, but--for high mass-ratios and large spins--sometimes requires manual fine-tuning for the merger-phase of binaries. The Einstein Toolkit (ET)"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10585","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1810.10585","created_at":"2026-05-17T23:50:11.780864+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.10585v1","created_at":"2026-05-17T23:50:11.780864+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10585","created_at":"2026-05-17T23:50:11.780864+00:00"},{"alias_kind":"pith_short_12","alias_value":"65GTPV3MALD7","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"65GTPV3MALD7WQAC","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"65GTPV3M","created_at":"2026-05-18T12:32:08.215937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC","json":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC.json","graph_json":"https://pith.science/api/pith-number/65GTPV3MALD7WQAC75MIFPOQYC/graph.json","events_json":"https://pith.science/api/pith-number/65GTPV3MALD7WQAC75MIFPOQYC/events.json","paper":"https://pith.science/paper/65GTPV3M"},"agent_actions":{"view_html":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC","download_json":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC.json","view_paper":"https://pith.science/paper/65GTPV3M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.10585&json=true","fetch_graph":"https://pith.science/api/pith-number/65GTPV3MALD7WQAC75MIFPOQYC/graph.json","fetch_events":"https://pith.science/api/pith-number/65GTPV3MALD7WQAC75MIFPOQYC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC/action/storage_attestation","attest_author":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC/action/author_attestation","sign_citation":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC/action/citation_signature","submit_replication":"https://pith.science/pith/65GTPV3MALD7WQAC75MIFPOQYC/action/replication_record"}},"created_at":"2026-05-17T23:50:11.780864+00:00","updated_at":"2026-05-17T23:50:11.780864+00:00"}