{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:XDXAH66CPRLKOEQYAYFLDPXWIT","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"52966558bc7e048b9ef4ffcf91ca2df9df4a683b71447ca754e2325788b2b7ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-02-03T12:57:24Z","title_canon_sha256":"8dea1548e84d241ad12bbd311cf2a5e326e434d711d0ca33c4fbe016d83d0919"},"schema_version":"1.0","source":{"id":"0902.0427","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.0427","created_at":"2026-05-18T02:35:01Z"},{"alias_kind":"arxiv_version","alias_value":"0902.0427v2","created_at":"2026-05-18T02:35:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.0427","created_at":"2026-05-18T02:35:01Z"},{"alias_kind":"pith_short_12","alias_value":"XDXAH66CPRLK","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"XDXAH66CPRLKOEQY","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"XDXAH66C","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:58ce86aeb8ff61ad56c4918df8b52cc9572bb71f29e5a2ae64f81f91cb7536fd","target":"graph","created_at":"2026-05-18T02:35:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We argue that the main feature behind novel properties of higher-dimensional black holes, compared to four-dimensional ones, is that their horizons can have two characteristic lengths of very different size. We develop a long-distance worldvolume effective theory that captures the black hole dynamics at scales much larger than the short scale. In this limit the black hole is regarded as a blackfold: a black brane (possibly boosted locally) whose worldvolume spans a curved submanifold of the spacetime. This approach reveals black objects with novel horizon geometries and topologies more complex","authors_text":"Niels A. Obers, Roberto Emparan, Troels Harmark, Vasilis Niarchos","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-02-03T12:57:24Z","title":"World-Volume Effective Theory for Higher-Dimensional Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.0427","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ab2979955fdb0878a804093a92dcce0d4121393a8ed80cd3ddc234d46c7e4505","target":"record","created_at":"2026-05-18T02:35:01Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"52966558bc7e048b9ef4ffcf91ca2df9df4a683b71447ca754e2325788b2b7ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2009-02-03T12:57:24Z","title_canon_sha256":"8dea1548e84d241ad12bbd311cf2a5e326e434d711d0ca33c4fbe016d83d0919"},"schema_version":"1.0","source":{"id":"0902.0427","kind":"arxiv","version":2}},"canonical_sha256":"b8ee03fbc27c56a71218060ab1bef644db1a69075aa6e9768006d69ae7d4c8ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8ee03fbc27c56a71218060ab1bef644db1a69075aa6e9768006d69ae7d4c8ea","first_computed_at":"2026-05-18T02:35:01.408728Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:35:01.408728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VYdWFQIRN8udgxX7LYGC6SOiWa+9UylmpOo8MgY6BchAa/8e3+89ctuY8DR1SLf0ENl8GX3a6jZZ7/9FJsP3CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:35:01.409104Z","signed_message":"canonical_sha256_bytes"},"source_id":"0902.0427","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab2979955fdb0878a804093a92dcce0d4121393a8ed80cd3ddc234d46c7e4505","sha256:58ce86aeb8ff61ad56c4918df8b52cc9572bb71f29e5a2ae64f81f91cb7536fd"],"state_sha256":"f5ce991f50c67e23255b4cd6b59109cebff220d99acd690cda12152611f336c4"}