{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:QSR2EY4R6ONJ53FTVZ3S6YOP7K","short_pith_number":"pith:QSR2EY4R","schema_version":"1.0","canonical_sha256":"84a3a26391f39a9eecb3ae772f61cffaa3e7678726a49d0c18a9d6cea46df09b","source":{"kind":"arxiv","id":"1808.00867","version":2},"attestation_state":"computed","paper":{"title":"Holographic Entanglement Entropy and the (3+1)-dimensional Topological Black Hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Alex Flournoy, Zachary Polonsky","submitted_at":"2018-08-02T15:48:29Z","abstract_excerpt":"We investigate the Holographic Entanglement Entropy proposal in the context of the (3+1)-dimensional topological black hole. In contrast to the well-studied (2+1)-dimensional case, the maximal extension for this black hole includes only a single exterior region with its conformal boundary. This immediately raises a puzzle as to how one can view the purification of the dual conformal field theory state in terms of a thermofield double in the usual manner. Motivated by this puzzle, we calculate the horizon area for these black holes and discover that the result is observer dependent. This observ"},"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":"1808.00867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-08-02T15:48:29Z","cross_cats_sorted":[],"title_canon_sha256":"8b02526358f8cfc2bb27435d683ad6c8ccd8c0bb4b2e337aa2f532771790ba5f","abstract_canon_sha256":"235567e80cc9114759136956f7b91724231fc655c118f9ee0b90348bd7b6c59b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:36.938483Z","signature_b64":"WfrkHZK0tOUSs0q5d/FYbt0BcK3o6+//6DO4J4u8VBRmQzAes5m/lVwR1ZFcrutCIXkQ3GPZrsm2JOwaUPESCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84a3a26391f39a9eecb3ae772f61cffaa3e7678726a49d0c18a9d6cea46df09b","last_reissued_at":"2026-05-18T00:05:36.938053Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:36.938053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Holographic Entanglement Entropy and the (3+1)-dimensional Topological Black Hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Alex Flournoy, Zachary Polonsky","submitted_at":"2018-08-02T15:48:29Z","abstract_excerpt":"We investigate the Holographic Entanglement Entropy proposal in the context of the (3+1)-dimensional topological black hole. In contrast to the well-studied (2+1)-dimensional case, the maximal extension for this black hole includes only a single exterior region with its conformal boundary. This immediately raises a puzzle as to how one can view the purification of the dual conformal field theory state in terms of a thermofield double in the usual manner. Motivated by this puzzle, we calculate the horizon area for these black holes and discover that the result is observer dependent. This observ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.00867","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":"1808.00867","created_at":"2026-05-18T00:05:36.938126+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.00867v2","created_at":"2026-05-18T00:05:36.938126+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.00867","created_at":"2026-05-18T00:05:36.938126+00:00"},{"alias_kind":"pith_short_12","alias_value":"QSR2EY4R6ONJ","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"QSR2EY4R6ONJ53FT","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"QSR2EY4R","created_at":"2026-05-18T12:32:46.962924+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/QSR2EY4R6ONJ53FTVZ3S6YOP7K","json":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K.json","graph_json":"https://pith.science/api/pith-number/QSR2EY4R6ONJ53FTVZ3S6YOP7K/graph.json","events_json":"https://pith.science/api/pith-number/QSR2EY4R6ONJ53FTVZ3S6YOP7K/events.json","paper":"https://pith.science/paper/QSR2EY4R"},"agent_actions":{"view_html":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K","download_json":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K.json","view_paper":"https://pith.science/paper/QSR2EY4R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.00867&json=true","fetch_graph":"https://pith.science/api/pith-number/QSR2EY4R6ONJ53FTVZ3S6YOP7K/graph.json","fetch_events":"https://pith.science/api/pith-number/QSR2EY4R6ONJ53FTVZ3S6YOP7K/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K/action/storage_attestation","attest_author":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K/action/author_attestation","sign_citation":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K/action/citation_signature","submit_replication":"https://pith.science/pith/QSR2EY4R6ONJ53FTVZ3S6YOP7K/action/replication_record"}},"created_at":"2026-05-18T00:05:36.938126+00:00","updated_at":"2026-05-18T00:05:36.938126+00:00"}