{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:MDS5WQQ3ZNAL56IP6XJ444FA2O","short_pith_number":"pith:MDS5WQQ3","canonical_record":{"source":{"id":"1104.5072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-04-27T04:17:40Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b206b71562c75dc3a64c4feb598d85d0c281a141294653a858ed09bb31edf85f","abstract_canon_sha256":"7dce61ad758b66fb4503a05b6529d32e554080d53bbf3d37670e43bfadad91fb"},"schema_version":"1.0"},"canonical_sha256":"60e5db421bcb40bef90ff5d3ce70a0d3bbaa5d765fa569d33393249639466949","source":{"kind":"arxiv","id":"1104.5072","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.5072","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.5072v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.5072","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"MDS5WQQ3ZNAL","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MDS5WQQ3ZNAL56IP","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MDS5WQQ3","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:MDS5WQQ3ZNAL56IP6XJ444FA2O","target":"record","payload":{"canonical_record":{"source":{"id":"1104.5072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-04-27T04:17:40Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b206b71562c75dc3a64c4feb598d85d0c281a141294653a858ed09bb31edf85f","abstract_canon_sha256":"7dce61ad758b66fb4503a05b6529d32e554080d53bbf3d37670e43bfadad91fb"},"schema_version":"1.0"},"canonical_sha256":"60e5db421bcb40bef90ff5d3ce70a0d3bbaa5d765fa569d33393249639466949","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:14.385698Z","signature_b64":"j8QP2biHW04TrqxNdjbhrtmoJK43ao5fS2fu/xwCjQz/UpqkX5+gGgTBM4ELdQ2Qngwoj3PcyIq7gTrPJqM5CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"60e5db421bcb40bef90ff5d3ce70a0d3bbaa5d765fa569d33393249639466949","last_reissued_at":"2026-05-18T02:02:14.384977Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:14.384977Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.5072","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QuJtg5VLbsAD229qsAhUdd1KBh2eHmr74NKTtodHaGcPicgfdSsQqNBWl1j13SMex7yB5RHy34OQIcrAX9YiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:38:43.316260Z"},"content_sha256":"cebe19cd769fa7077a8a65bae5147b9b4a5cbbd89383edfa82e09c9786238b7a","schema_version":"1.0","event_id":"sha256:cebe19cd769fa7077a8a65bae5147b9b4a5cbbd89383edfa82e09c9786238b7a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:MDS5WQQ3ZNAL56IP6XJ444FA2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electrovacuum Near-horizon Geometries in Four and Five Dimensions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Hari K. Kunduri","submitted_at":"2011-04-27T04:17:40Z","abstract_excerpt":"Associated to every stationary extremal black hole is a unique near-horizon geometry, itself a solution of the field equations. These latter spacetimes are more tractable to analyze and most importantly, retain properties of the original black hole which are intrinsic to the event horizon. After reviewing general features of near-horizon geometries, such as SO(2,1) symmetry enhancement, I report on recent work on stationary, charged extremal black hole solutions of the Einstein-Maxwell equations with a negative cosmological constant in four dimensions and present a classification of near-horiz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.5072","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d0q7wGCDleBzDJBym0/Z6WEuGiyoMA/MecItpw7nLTayHNziw6fPhXRiexs+TnFhCV7zrE+UB77WoIRblPdFBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:38:43.316609Z"},"content_sha256":"4a06e2464e9c7dc3b01d654c7c6871c32b6ae15bfdf19a7f15dce3c6f337284d","schema_version":"1.0","event_id":"sha256:4a06e2464e9c7dc3b01d654c7c6871c32b6ae15bfdf19a7f15dce3c6f337284d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/bundle.json","state_url":"https://pith.science/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T23:38:43Z","links":{"resolver":"https://pith.science/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O","bundle":"https://pith.science/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/bundle.json","state":"https://pith.science/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MDS5WQQ3ZNAL56IP6XJ444FA2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MDS5WQQ3ZNAL56IP6XJ444FA2O","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":"7dce61ad758b66fb4503a05b6529d32e554080d53bbf3d37670e43bfadad91fb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-04-27T04:17:40Z","title_canon_sha256":"b206b71562c75dc3a64c4feb598d85d0c281a141294653a858ed09bb31edf85f"},"schema_version":"1.0","source":{"id":"1104.5072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.5072","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.5072v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.5072","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"MDS5WQQ3ZNAL","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MDS5WQQ3ZNAL56IP","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MDS5WQQ3","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:4a06e2464e9c7dc3b01d654c7c6871c32b6ae15bfdf19a7f15dce3c6f337284d","target":"graph","created_at":"2026-05-18T02:02:14Z","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":"Associated to every stationary extremal black hole is a unique near-horizon geometry, itself a solution of the field equations. These latter spacetimes are more tractable to analyze and most importantly, retain properties of the original black hole which are intrinsic to the event horizon. After reviewing general features of near-horizon geometries, such as SO(2,1) symmetry enhancement, I report on recent work on stationary, charged extremal black hole solutions of the Einstein-Maxwell equations with a negative cosmological constant in four dimensions and present a classification of near-horiz","authors_text":"Hari K. Kunduri","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-04-27T04:17:40Z","title":"Electrovacuum Near-horizon Geometries in Four and Five Dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.5072","kind":"arxiv","version":1},"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:cebe19cd769fa7077a8a65bae5147b9b4a5cbbd89383edfa82e09c9786238b7a","target":"record","created_at":"2026-05-18T02:02:14Z","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":"7dce61ad758b66fb4503a05b6529d32e554080d53bbf3d37670e43bfadad91fb","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2011-04-27T04:17:40Z","title_canon_sha256":"b206b71562c75dc3a64c4feb598d85d0c281a141294653a858ed09bb31edf85f"},"schema_version":"1.0","source":{"id":"1104.5072","kind":"arxiv","version":1}},"canonical_sha256":"60e5db421bcb40bef90ff5d3ce70a0d3bbaa5d765fa569d33393249639466949","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60e5db421bcb40bef90ff5d3ce70a0d3bbaa5d765fa569d33393249639466949","first_computed_at":"2026-05-18T02:02:14.384977Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:14.384977Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j8QP2biHW04TrqxNdjbhrtmoJK43ao5fS2fu/xwCjQz/UpqkX5+gGgTBM4ELdQ2Qngwoj3PcyIq7gTrPJqM5CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:14.385698Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.5072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cebe19cd769fa7077a8a65bae5147b9b4a5cbbd89383edfa82e09c9786238b7a","sha256:4a06e2464e9c7dc3b01d654c7c6871c32b6ae15bfdf19a7f15dce3c6f337284d"],"state_sha256":"438650546fe1c63dce256852eb0f737198ce21137d0f44cd208ce527a346fbba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"89w6NPFG56n8W16j+pcrcOaSm2a1NzYFZKjlWZYtCn33i93ipm7ABXd2qz6e+9Vr3nLXogM3I5sUbuFmNBKqAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:38:43.318460Z","bundle_sha256":"ce2b3dd3f3da1a79c991b173aaf071c7e6e134ddeb7f902f45e288bdc279e65d"}}