{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:ENVSM64TIENQ4YBZA4LOGZV3EO","short_pith_number":"pith:ENVSM64T","schema_version":"1.0","canonical_sha256":"236b267b93411b0e60390716e366bb23b538e5d06735795fa71e976d85d21d7d","source":{"kind":"arxiv","id":"1502.05674","version":2},"attestation_state":"computed","paper":{"title":"New code for quasiequilibrium initial data of binary neutron stars: Corotating, irrotational and slowly spinning systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Antonios Tsokaros, Koji Uryu, Luciano Rezzolla","submitted_at":"2015-02-19T19:28:46Z","abstract_excerpt":"We present the extension of our \\cocal~- Compact Object CALculator - code to compute general-relativistic initial data for binary compact-star systems. In particular, we construct quasiequilibrium initial data for equal-mass binaries with spins that are either aligned or antialigned with the orbital angular momentum. The Isenberg-Wilson-Mathews formalism is adopted and the constraint equations are solved using the representation formula with a suitable choice of a Green's function. We validate the new code with solutions for equal-mass binaries and explore its capabilities for a wide range of "},"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":"1502.05674","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-02-19T19:28:46Z","cross_cats_sorted":[],"title_canon_sha256":"cc2110c90adaa8024f62bac229cea791c8409b998e409c464a0438ddee1c91fb","abstract_canon_sha256":"701987a254e0c021d16c952293785e2bc84412475405ac64d259e94e913f101e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:26.848595Z","signature_b64":"IsPccl4fem6hmE/ZlFGNVr34YGyAc8s6sNCY5PtfKhegkNdDXmMwpKeBau6WWPUZV8E+PSvzm7Z37rx+AVhTCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"236b267b93411b0e60390716e366bb23b538e5d06735795fa71e976d85d21d7d","last_reissued_at":"2026-05-18T01:58:26.847991Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:26.847991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New code for quasiequilibrium initial data of binary neutron stars: Corotating, irrotational and slowly spinning systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Antonios Tsokaros, Koji Uryu, Luciano Rezzolla","submitted_at":"2015-02-19T19:28:46Z","abstract_excerpt":"We present the extension of our \\cocal~- Compact Object CALculator - code to compute general-relativistic initial data for binary compact-star systems. In particular, we construct quasiequilibrium initial data for equal-mass binaries with spins that are either aligned or antialigned with the orbital angular momentum. The Isenberg-Wilson-Mathews formalism is adopted and the constraint equations are solved using the representation formula with a suitable choice of a Green's function. We validate the new code with solutions for equal-mass binaries and explore its capabilities for a wide range of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.05674","kind":"arxiv","version":2},"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":"1502.05674","created_at":"2026-05-18T01:58:26.848085+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.05674v2","created_at":"2026-05-18T01:58:26.848085+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.05674","created_at":"2026-05-18T01:58:26.848085+00:00"},{"alias_kind":"pith_short_12","alias_value":"ENVSM64TIENQ","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_16","alias_value":"ENVSM64TIENQ4YBZ","created_at":"2026-05-18T12:29:19.899920+00:00"},{"alias_kind":"pith_short_8","alias_value":"ENVSM64T","created_at":"2026-05-18T12:29:19.899920+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/ENVSM64TIENQ4YBZA4LOGZV3EO","json":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO.json","graph_json":"https://pith.science/api/pith-number/ENVSM64TIENQ4YBZA4LOGZV3EO/graph.json","events_json":"https://pith.science/api/pith-number/ENVSM64TIENQ4YBZA4LOGZV3EO/events.json","paper":"https://pith.science/paper/ENVSM64T"},"agent_actions":{"view_html":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO","download_json":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO.json","view_paper":"https://pith.science/paper/ENVSM64T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.05674&json=true","fetch_graph":"https://pith.science/api/pith-number/ENVSM64TIENQ4YBZA4LOGZV3EO/graph.json","fetch_events":"https://pith.science/api/pith-number/ENVSM64TIENQ4YBZA4LOGZV3EO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO/action/storage_attestation","attest_author":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO/action/author_attestation","sign_citation":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO/action/citation_signature","submit_replication":"https://pith.science/pith/ENVSM64TIENQ4YBZA4LOGZV3EO/action/replication_record"}},"created_at":"2026-05-18T01:58:26.848085+00:00","updated_at":"2026-05-18T01:58:26.848085+00:00"}