{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:QYUX436OUB3XLR24XPA33T7ZHP","short_pith_number":"pith:QYUX436O","schema_version":"1.0","canonical_sha256":"86297e6fcea07775c75cbbc1bdcff93bd10e67a969bc3865999ffe830ad0353f","source":{"kind":"arxiv","id":"1104.1205","version":2},"attestation_state":"computed","paper":{"title":"Birkhoff's Theorem in Higher Derivative Theories of Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Julio Oliva, Sourya Ray","submitted_at":"2011-04-06T22:19:24Z","abstract_excerpt":"In this paper we present a class of higher derivative theories of gravity which admit Birkhoff's theorem. In particular, we explicitly show that in this class of theories, although generically the field equations are of fourth order, under spherical (plane or hyperbolic) symmetry, all the field equations reduce to second order and have exactly the same or similar structure to those of Lovelock theories, depending on the spacetime dimensions and the order of the Lagrangian."},"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":"1104.1205","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2011-04-06T22:19:24Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"273525f32d10c6a44f1213eed760f3c3c770a9b21d4d8d34d2c5c6898d84ae3a","abstract_canon_sha256":"a4ca5fc34a33f048ab72ccf88935e7154c3868b6358d900e9bdcb5ab80321c98"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:12:11.839990Z","signature_b64":"BxUxcb2H1REAA544IFR1GzF3ZzxXGUUouSvNS9bcn5FjXZ9Szt3M+VR8cckM7oYzfU73dzwrGHAuupMdShzPAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86297e6fcea07775c75cbbc1bdcff93bd10e67a969bc3865999ffe830ad0353f","last_reissued_at":"2026-05-18T04:12:11.839621Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:12:11.839621Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Birkhoff's Theorem in Higher Derivative Theories of Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Julio Oliva, Sourya Ray","submitted_at":"2011-04-06T22:19:24Z","abstract_excerpt":"In this paper we present a class of higher derivative theories of gravity which admit Birkhoff's theorem. In particular, we explicitly show that in this class of theories, although generically the field equations are of fourth order, under spherical (plane or hyperbolic) symmetry, all the field equations reduce to second order and have exactly the same or similar structure to those of Lovelock theories, depending on the spacetime dimensions and the order of the Lagrangian."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1205","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":"1104.1205","created_at":"2026-05-18T04:12:11.839677+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.1205v2","created_at":"2026-05-18T04:12:11.839677+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1205","created_at":"2026-05-18T04:12:11.839677+00:00"},{"alias_kind":"pith_short_12","alias_value":"QYUX436OUB3X","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_16","alias_value":"QYUX436OUB3XLR24","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_8","alias_value":"QYUX436O","created_at":"2026-05-18T12:26:39.201973+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.02742","citing_title":"Dynamical Formation of Regular Black Holes","ref_index":70,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP","json":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP.json","graph_json":"https://pith.science/api/pith-number/QYUX436OUB3XLR24XPA33T7ZHP/graph.json","events_json":"https://pith.science/api/pith-number/QYUX436OUB3XLR24XPA33T7ZHP/events.json","paper":"https://pith.science/paper/QYUX436O"},"agent_actions":{"view_html":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP","download_json":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP.json","view_paper":"https://pith.science/paper/QYUX436O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.1205&json=true","fetch_graph":"https://pith.science/api/pith-number/QYUX436OUB3XLR24XPA33T7ZHP/graph.json","fetch_events":"https://pith.science/api/pith-number/QYUX436OUB3XLR24XPA33T7ZHP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP/action/storage_attestation","attest_author":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP/action/author_attestation","sign_citation":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP/action/citation_signature","submit_replication":"https://pith.science/pith/QYUX436OUB3XLR24XPA33T7ZHP/action/replication_record"}},"created_at":"2026-05-18T04:12:11.839677+00:00","updated_at":"2026-05-18T04:12:11.839677+00:00"}