{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:2G4SMTEI3LOKL5JX5F7ZI77NGU","short_pith_number":"pith:2G4SMTEI","canonical_record":{"source":{"id":"2303.11322","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-20T17:57:14Z","cross_cats_sorted":[],"title_canon_sha256":"9b937d4f6bc0671143f022781aa39f5a11d9a6a2f9db7b085c3b2a2ad0b3cce1","abstract_canon_sha256":"2f0f6f4c6cbecc81efe23dcdb410cefdc777b781359062d87a353e5ba6ae2bdb"},"schema_version":"1.0"},"canonical_sha256":"d1b9264c88dadca5f537e97f947fed35025cf7cf6654a961c8bb68af6dca1063","source":{"kind":"arxiv","id":"2303.11322","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.11322","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"arxiv_version","alias_value":"2303.11322v2","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.11322","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_12","alias_value":"2G4SMTEI3LOK","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_16","alias_value":"2G4SMTEI3LOKL5JX","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_8","alias_value":"2G4SMTEI","created_at":"2026-07-05T05:56:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:2G4SMTEI3LOKL5JX5F7ZI77NGU","target":"record","payload":{"canonical_record":{"source":{"id":"2303.11322","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-20T17:57:14Z","cross_cats_sorted":[],"title_canon_sha256":"9b937d4f6bc0671143f022781aa39f5a11d9a6a2f9db7b085c3b2a2ad0b3cce1","abstract_canon_sha256":"2f0f6f4c6cbecc81efe23dcdb410cefdc777b781359062d87a353e5ba6ae2bdb"},"schema_version":"1.0"},"canonical_sha256":"d1b9264c88dadca5f537e97f947fed35025cf7cf6654a961c8bb68af6dca1063","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:56:29.915986Z","signature_b64":"rE9wbmyZx1j2VqlWT/2mcmxCyIj72z2UHgBUBzfr7Co5fDbhZOVhvHDAjvVwv/bbAbK2MMYVtxQ8zighGCnfBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1b9264c88dadca5f537e97f947fed35025cf7cf6654a961c8bb68af6dca1063","last_reissued_at":"2026-07-05T05:56:29.915472Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:56:29.915472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.11322","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:56:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3P8R/dBbGSgd+CdBDVgbLKNZ+nW5z8Wj31BaQ10v1GZYW2Mi+xz9A18PevGElisQOdFjTwbRevJtiC09xmdnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:26:07.186650Z"},"content_sha256":"70851702eb3867fdab797c389156e5acb3603fe97f5aa7f2e6e2a3846f55a5a9","schema_version":"1.0","event_id":"sha256:70851702eb3867fdab797c389156e5acb3603fe97f5aa7f2e6e2a3846f55a5a9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:2G4SMTEI3LOKL5JX5F7ZI77NGU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the analytic extension of regular rotating black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Leonardo Modesto, Tian Zhou","submitted_at":"2023-03-20T17:57:14Z","abstract_excerpt":"We hereby focus on the analytic geodesic extension of several regular rotating black holes (RRBHs) obtained throughout the Newman-Janis algorithm starting from some popular spherically symmetric regular black holes. It turns out that if the metric is not an even function of Boyer-Lindquist radial coordinate r, similarly to the Kerr spacetime, the metric has to be extended to negative values of r to ensure the analyticity of the geodesic equations (and in turn of the geodesics). Therefore, some of the extended RRBHs considered in this paper, such as the rotating Hayward black hole, are geodetic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.11322","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.11322/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:56:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q92iW/zU2z/xFvObOqf94BuhwMBGSIkAvl74K/AELHVVtMKGHnfYgR9loffY3pbIdRYV7Q66jAVTS11R3947AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T06:26:07.187505Z"},"content_sha256":"fd025bfe9fe14178cbdc969ef9294350a26977ca241988758dc94d37cc7d8c7a","schema_version":"1.0","event_id":"sha256:fd025bfe9fe14178cbdc969ef9294350a26977ca241988758dc94d37cc7d8c7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/bundle.json","state_url":"https://pith.science/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/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":"2026-08-10T06:26:07Z","links":{"resolver":"https://pith.science/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU","bundle":"https://pith.science/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/bundle.json","state":"https://pith.science/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2G4SMTEI3LOKL5JX5F7ZI77NGU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:2G4SMTEI3LOKL5JX5F7ZI77NGU","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":"2f0f6f4c6cbecc81efe23dcdb410cefdc777b781359062d87a353e5ba6ae2bdb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-20T17:57:14Z","title_canon_sha256":"9b937d4f6bc0671143f022781aa39f5a11d9a6a2f9db7b085c3b2a2ad0b3cce1"},"schema_version":"1.0","source":{"id":"2303.11322","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.11322","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"arxiv_version","alias_value":"2303.11322v2","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.11322","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_12","alias_value":"2G4SMTEI3LOK","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_16","alias_value":"2G4SMTEI3LOKL5JX","created_at":"2026-07-05T05:56:29Z"},{"alias_kind":"pith_short_8","alias_value":"2G4SMTEI","created_at":"2026-07-05T05:56:29Z"}],"graph_snapshots":[{"event_id":"sha256:fd025bfe9fe14178cbdc969ef9294350a26977ca241988758dc94d37cc7d8c7a","target":"graph","created_at":"2026-07-05T05:56:29Z","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/2303.11322/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We hereby focus on the analytic geodesic extension of several regular rotating black holes (RRBHs) obtained throughout the Newman-Janis algorithm starting from some popular spherically symmetric regular black holes. It turns out that if the metric is not an even function of Boyer-Lindquist radial coordinate r, similarly to the Kerr spacetime, the metric has to be extended to negative values of r to ensure the analyticity of the geodesic equations (and in turn of the geodesics). Therefore, some of the extended RRBHs considered in this paper, such as the rotating Hayward black hole, are geodetic","authors_text":"Leonardo Modesto, Tian Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-20T17:57:14Z","title":"On the analytic extension of regular rotating black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.11322","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":"sha256:70851702eb3867fdab797c389156e5acb3603fe97f5aa7f2e6e2a3846f55a5a9","target":"record","created_at":"2026-07-05T05:56:29Z","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":"2f0f6f4c6cbecc81efe23dcdb410cefdc777b781359062d87a353e5ba6ae2bdb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2023-03-20T17:57:14Z","title_canon_sha256":"9b937d4f6bc0671143f022781aa39f5a11d9a6a2f9db7b085c3b2a2ad0b3cce1"},"schema_version":"1.0","source":{"id":"2303.11322","kind":"arxiv","version":2}},"canonical_sha256":"d1b9264c88dadca5f537e97f947fed35025cf7cf6654a961c8bb68af6dca1063","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1b9264c88dadca5f537e97f947fed35025cf7cf6654a961c8bb68af6dca1063","first_computed_at":"2026-07-05T05:56:29.915472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:56:29.915472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rE9wbmyZx1j2VqlWT/2mcmxCyIj72z2UHgBUBzfr7Co5fDbhZOVhvHDAjvVwv/bbAbK2MMYVtxQ8zighGCnfBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:56:29.915986Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.11322","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70851702eb3867fdab797c389156e5acb3603fe97f5aa7f2e6e2a3846f55a5a9","sha256:fd025bfe9fe14178cbdc969ef9294350a26977ca241988758dc94d37cc7d8c7a"],"state_sha256":"bc361d8221336f466379fda21f097fada5873ce5955482d1f85b3b189435ca77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EWx4DGFHMG57lm7j0m9/kK55Qp9aNSUE+scfEiq+z5TUuMVkaG0BYtvOoU3JJLAZf+bfidkxbPUyZoAr/9NXDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T06:26:07.193667Z","bundle_sha256":"88acf9b0b78e23a62dd76aefa566c9574c5474bbe5ef87c952996fe9336304c6"}}