{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:HJTBYAZLGWKJ2OOH4YLB6D3CJ6","short_pith_number":"pith:HJTBYAZL","schema_version":"1.0","canonical_sha256":"3a661c032b35949d39c7e6161f0f624f99c6baa5a183a938065dce2abe674d29","source":{"kind":"arxiv","id":"2401.05613","version":2},"attestation_state":"computed","paper":{"title":"Gravitational waves carry information beyond effective spin parameters but it is hard to extract","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Katerina Chatziioannou, Simona J. Miller, Thomas A. Callister, Zoe Ko","submitted_at":"2024-01-11T01:36:19Z","abstract_excerpt":"Gravitational wave observations of binary black hole mergers probe their astrophysical origins via the binary spin, namely the spin magnitudes and directions of each component black hole, together described by six degrees of freedom. However, the emitted signals primarily depend on two effective spin parameters that condense the spin degrees of freedom to those parallel and those perpendicular to the orbital plane. Given this reduction in dimensionality between the physically relevant problem and what is typically measurable, we revisit the question of whether information about the component s"},"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":"2401.05613","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-11T01:36:19Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"daf79fdffabc40b467157bd1d484f6f841e23bc7453892aaf553fb3cedb3a7c7","abstract_canon_sha256":"67d99228bca57d3b71ab74fd70bc762538b8ccc8ce01dcdf82d4ac3d8bc512e1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:18:47.922692Z","signature_b64":"wBkKV6APKmZNmjEw81OBOup5XO/XHNc2i/Tjk4mos7IPZq/LdSafyuC2HLfvIS0d/n3AhUdvwW0iVBx2uciQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a661c032b35949d39c7e6161f0f624f99c6baa5a183a938065dce2abe674d29","last_reissued_at":"2026-07-05T08:18:47.922069Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:18:47.922069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational waves carry information beyond effective spin parameters but it is hard to extract","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"gr-qc","authors_text":"Katerina Chatziioannou, Simona J. Miller, Thomas A. Callister, Zoe Ko","submitted_at":"2024-01-11T01:36:19Z","abstract_excerpt":"Gravitational wave observations of binary black hole mergers probe their astrophysical origins via the binary spin, namely the spin magnitudes and directions of each component black hole, together described by six degrees of freedom. However, the emitted signals primarily depend on two effective spin parameters that condense the spin degrees of freedom to those parallel and those perpendicular to the orbital plane. Given this reduction in dimensionality between the physically relevant problem and what is typically measurable, we revisit the question of whether information about the component s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.05613","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.05613/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2401.05613","created_at":"2026-07-05T08:18:47.922142+00:00"},{"alias_kind":"arxiv_version","alias_value":"2401.05613v2","created_at":"2026-07-05T08:18:47.922142+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.05613","created_at":"2026-07-05T08:18:47.922142+00:00"},{"alias_kind":"pith_short_12","alias_value":"HJTBYAZLGWKJ","created_at":"2026-07-05T08:18:47.922142+00:00"},{"alias_kind":"pith_short_16","alias_value":"HJTBYAZLGWKJ2OOH","created_at":"2026-07-05T08:18:47.922142+00:00"},{"alias_kind":"pith_short_8","alias_value":"HJTBYAZL","created_at":"2026-07-05T08:18:47.922142+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2602.11282","citing_title":"Measurement prospects for the pair-instability mass cutoff with gravitational waves","ref_index":74,"is_internal_anchor":false},{"citing_arxiv_id":"2604.06090","citing_title":"Posterior Predictive Checks for Gravitational-wave Populations: Limitations and Improvements","ref_index":50,"is_internal_anchor":false},{"citing_arxiv_id":"2601.07908","citing_title":"Signatures of a subpopulation of hierarchical mergers in the GWTC-4 gravitational-wave dataset","ref_index":59,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6","json":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6.json","graph_json":"https://pith.science/api/pith-number/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/graph.json","events_json":"https://pith.science/api/pith-number/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/events.json","paper":"https://pith.science/paper/HJTBYAZL"},"agent_actions":{"view_html":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6","download_json":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6.json","view_paper":"https://pith.science/paper/HJTBYAZL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2401.05613&json=true","fetch_graph":"https://pith.science/api/pith-number/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/graph.json","fetch_events":"https://pith.science/api/pith-number/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/action/storage_attestation","attest_author":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/action/author_attestation","sign_citation":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/action/citation_signature","submit_replication":"https://pith.science/pith/HJTBYAZLGWKJ2OOH4YLB6D3CJ6/action/replication_record"}},"created_at":"2026-07-05T08:18:47.922142+00:00","updated_at":"2026-07-05T08:18:47.922142+00:00"}