{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:4ZXRO4WYCQSJWZNBBXKZUCJJR6","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":"7a84dbceb43fb6c2f1013c3b58da6b5707a20a414cf1d516514485f100128c6d","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-03-17T20:46:09Z","title_canon_sha256":"0ecefe2c61a27e9d49086bbedba548eb3e1a722a46468ad0967e963932a2ff35"},"schema_version":"1.0","source":{"id":"0803.2526","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.2526","created_at":"2026-07-04T17:09:52Z"},{"alias_kind":"arxiv_version","alias_value":"0803.2526v2","created_at":"2026-07-04T17:09:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.2526","created_at":"2026-07-04T17:09:52Z"},{"alias_kind":"pith_short_12","alias_value":"4ZXRO4WYCQSJ","created_at":"2026-07-04T17:09:52Z"},{"alias_kind":"pith_short_16","alias_value":"4ZXRO4WYCQSJWZNB","created_at":"2026-07-04T17:09:52Z"},{"alias_kind":"pith_short_8","alias_value":"4ZXRO4WY","created_at":"2026-07-04T17:09:52Z"}],"graph_snapshots":[{"event_id":"sha256:f6f2a5e37fac7007ecaaa4d0c9bd25a32395f54ed57cca0b6ef50208e24a4054","target":"graph","created_at":"2026-07-04T17:09:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0803.2526/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spacetime geometries dual to arbitrary fluid flows in strongly coupled N=4 super Yang Mills theory have recently been constructed perturbatively in the long wavelength limit. We demonstrate that these geometries all have regular event horizons, and determine the location of the horizon order by order in a boundary derivative expansion. Intriguingly, the derivative expansion allows us to determine the location of the event horizon in the bulk as a local function of the fluid dynamical variables. We define a natural map from the boundary to the horizon using ingoing null geodesics. The area-form","authors_text":"Gautam Mandal, Harvey S. Reall, Mukund Rangamani, R. Loganayagam, Sayantani Bhattacharyya, Shiraz Minwalla, Takeshi Morita, Veronika E Hubeny","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-03-17T20:46:09Z","title":"Local Fluid Dynamical Entropy from Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.2526","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:fa026be8c684e172f278c5cd9a6f88bcdcdf9828813564ea74b5598c3602881d","target":"record","created_at":"2026-07-04T17:09:52Z","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":"7a84dbceb43fb6c2f1013c3b58da6b5707a20a414cf1d516514485f100128c6d","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-03-17T20:46:09Z","title_canon_sha256":"0ecefe2c61a27e9d49086bbedba548eb3e1a722a46468ad0967e963932a2ff35"},"schema_version":"1.0","source":{"id":"0803.2526","kind":"arxiv","version":2}},"canonical_sha256":"e66f1772d814249b65a10dd59a09298fb74cee7db1500c47022702f522e3c1bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e66f1772d814249b65a10dd59a09298fb74cee7db1500c47022702f522e3c1bd","first_computed_at":"2026-07-04T17:09:52.406911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:09:52.406911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bgss68olUUvJ0R6QeI7TU0bjVTPJggSJSCuFcaTnYGNcOVE9i3z/U1OyZhGije6PkozNJoZ77R2gCAfue5KtCw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:09:52.407242Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.2526","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa026be8c684e172f278c5cd9a6f88bcdcdf9828813564ea74b5598c3602881d","sha256:f6f2a5e37fac7007ecaaa4d0c9bd25a32395f54ed57cca0b6ef50208e24a4054"],"state_sha256":"0d07f234ca3b20e0550157dc751f1163294c12c564246d6a96d0283ef8fb34ba"}