{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:YJOQ45BQKGFUVKUMJ5VNIVSSQE","short_pith_number":"pith:YJOQ45BQ","schema_version":"1.0","canonical_sha256":"c25d0e7430518b4aaa8c4f6ad456528127df03d1459f58b0228c9c7f8134e352","source":{"kind":"arxiv","id":"1011.3281","version":1},"attestation_state":"computed","paper":{"title":"Superkicks in ultrarelativistic encounters of spinning black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Emanuele Berti, Frans Pretorius, Nicolas Yunes, Ulrich Sperhake, Vitor Cardoso","submitted_at":"2010-11-15T03:26:32Z","abstract_excerpt":"We study ultrarelativistic encounters of two spinning, equal-mass black holes through simulations in full numerical relativity. Two initial data sequences are studied in detail: one that leads to scattering and one that leads to a grazing collision and merger. In all cases, the initial black hole spins lie in the orbital plane, a configuration that leads to the so-called \"superkicks\". In astrophysical, quasicircular inspirals, such kicks can be as large as ~3,000 km/s; here, we find configurations that exceed ~15,000 km/s. We find that the maximum recoil is to a good approximation proportional"},"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":"1011.3281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-11-15T03:26:32Z","cross_cats_sorted":[],"title_canon_sha256":"06069e2099c22a72f4f27888067fada4e292445edeaea86b80dac559281b1cbe","abstract_canon_sha256":"0879d9f6507ef5c2e8abb6ab71c5ce1be76fe9b62454717961328bd12aee81e7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:27:56.432860Z","signature_b64":"QBmxkWTgk/rSxTcH5/qs1A2/dgHoKOKZTB9PAOc5NX1kEp3nYThmqwlvxl94fu9IPvpX5Uqvi/cyCLmKLu64Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c25d0e7430518b4aaa8c4f6ad456528127df03d1459f58b0228c9c7f8134e352","last_reissued_at":"2026-05-18T04:27:56.432081Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:27:56.432081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Superkicks in ultrarelativistic encounters of spinning black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Emanuele Berti, Frans Pretorius, Nicolas Yunes, Ulrich Sperhake, Vitor Cardoso","submitted_at":"2010-11-15T03:26:32Z","abstract_excerpt":"We study ultrarelativistic encounters of two spinning, equal-mass black holes through simulations in full numerical relativity. Two initial data sequences are studied in detail: one that leads to scattering and one that leads to a grazing collision and merger. In all cases, the initial black hole spins lie in the orbital plane, a configuration that leads to the so-called \"superkicks\". In astrophysical, quasicircular inspirals, such kicks can be as large as ~3,000 km/s; here, we find configurations that exceed ~15,000 km/s. We find that the maximum recoil is to a good approximation proportional"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.3281","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":"1011.3281","created_at":"2026-05-18T04:27:56.432186+00:00"},{"alias_kind":"arxiv_version","alias_value":"1011.3281v1","created_at":"2026-05-18T04:27:56.432186+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.3281","created_at":"2026-05-18T04:27:56.432186+00:00"},{"alias_kind":"pith_short_12","alias_value":"YJOQ45BQKGFU","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_16","alias_value":"YJOQ45BQKGFUVKUM","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_8","alias_value":"YJOQ45BQ","created_at":"2026-05-18T12:26:17.028572+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2511.00307","citing_title":"Spin-up and mass-gain in hyperbolic encounters of spinning black holes","ref_index":52,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE","json":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE.json","graph_json":"https://pith.science/api/pith-number/YJOQ45BQKGFUVKUMJ5VNIVSSQE/graph.json","events_json":"https://pith.science/api/pith-number/YJOQ45BQKGFUVKUMJ5VNIVSSQE/events.json","paper":"https://pith.science/paper/YJOQ45BQ"},"agent_actions":{"view_html":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE","download_json":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE.json","view_paper":"https://pith.science/paper/YJOQ45BQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1011.3281&json=true","fetch_graph":"https://pith.science/api/pith-number/YJOQ45BQKGFUVKUMJ5VNIVSSQE/graph.json","fetch_events":"https://pith.science/api/pith-number/YJOQ45BQKGFUVKUMJ5VNIVSSQE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE/action/storage_attestation","attest_author":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE/action/author_attestation","sign_citation":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE/action/citation_signature","submit_replication":"https://pith.science/pith/YJOQ45BQKGFUVKUMJ5VNIVSSQE/action/replication_record"}},"created_at":"2026-05-18T04:27:56.432186+00:00","updated_at":"2026-05-18T04:27:56.432186+00:00"}