{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:6SI4GHXRJEUO5SEFPQGIEPCGGE","short_pith_number":"pith:6SI4GHXR","canonical_record":{"source":{"id":"2408.09243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-08-17T16:28:26Z","cross_cats_sorted":[],"title_canon_sha256":"af9543c0682b1f636b0ddd9b73bd8128c8f4bbdab6a2442b5804e963790395f0","abstract_canon_sha256":"b9973ed5a476a6c9d14b536d9b008eee6b85c151f9b850c34e8ca664891cb757"},"schema_version":"1.0"},"canonical_sha256":"f491c31ef14928eec8857c0c823c4631376d1968439236e9f81bcc2440432324","source":{"kind":"arxiv","id":"2408.09243","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.09243","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"arxiv_version","alias_value":"2408.09243v1","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.09243","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_12","alias_value":"6SI4GHXRJEUO","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_16","alias_value":"6SI4GHXRJEUO5SEF","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_8","alias_value":"6SI4GHXR","created_at":"2026-07-05T08:56:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:6SI4GHXRJEUO5SEFPQGIEPCGGE","target":"record","payload":{"canonical_record":{"source":{"id":"2408.09243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-08-17T16:28:26Z","cross_cats_sorted":[],"title_canon_sha256":"af9543c0682b1f636b0ddd9b73bd8128c8f4bbdab6a2442b5804e963790395f0","abstract_canon_sha256":"b9973ed5a476a6c9d14b536d9b008eee6b85c151f9b850c34e8ca664891cb757"},"schema_version":"1.0"},"canonical_sha256":"f491c31ef14928eec8857c0c823c4631376d1968439236e9f81bcc2440432324","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:56:30.119591Z","signature_b64":"kA4/Ys8Q4HphfJj5lRi/t4ybT3o8G6YSt6/yyOzhtLlOpEL3UZiSMAdCWFuq1zkUfEFH6AxgmAZRF1HC9dtfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f491c31ef14928eec8857c0c823c4631376d1968439236e9f81bcc2440432324","last_reissued_at":"2026-07-05T08:56:30.119102Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:56:30.119102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.09243","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":"2026-07-05T08:56:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3KPGd38gePR8+y0Sj7cfmHYJ+VJTjjRA2orAMz/WfKXgzs5VdOQL3jxrGGLHtnDwrWebgPaw7VBCxWv54L9IBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:20:29.373212Z"},"content_sha256":"9a7a8e21598b95193dab4e5d77eb07e3a18cecd9cdd12fb0c4ff5aa117f0866b","schema_version":"1.0","event_id":"sha256:9a7a8e21598b95193dab4e5d77eb07e3a18cecd9cdd12fb0c4ff5aa117f0866b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:6SI4GHXRJEUO5SEFPQGIEPCGGE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stationary Scalar Clouds around Kerr-Newman Black Holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Guangzhou Guo, Haitang Yang, Peng Wang, Tianshu Wu","submitted_at":"2024-08-17T16:28:26Z","abstract_excerpt":"This study investigates scalar clouds around Kerr-Newman black holes within the Einstein-Maxwell-scalar model. Tachyonic instabilities are identified as the driving mechanism for scalar cloud formation. Employing the spectral method, we numerically compute wave functions and parameter space existence domains for both fundamental and excited scalar cloud modes. Our analysis demonstrates that black hole spin imposes an upper limit on the existence of scalar clouds, with excited modes requiring stronger tachyonic instabilities for their formation. These findings lay the groundwork for exploring t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.09243","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.09243/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":"2026-07-05T08:56:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"So+pKplwzL2Ndn5vw2n2E30nrTxfleqrKqyUpEuQ998tn0LqrePBwF8lXFmaWn7btw91gBZ941zlbgSgR03UBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:20:29.373721Z"},"content_sha256":"6ee76dd5924aaf531b0a31199bcb0dfe6cee276bd081c974fb12bf616776a1d5","schema_version":"1.0","event_id":"sha256:6ee76dd5924aaf531b0a31199bcb0dfe6cee276bd081c974fb12bf616776a1d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/bundle.json","state_url":"https://pith.science/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/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":"2026-08-09T11:20:29Z","links":{"resolver":"https://pith.science/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE","bundle":"https://pith.science/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/bundle.json","state":"https://pith.science/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6SI4GHXRJEUO5SEFPQGIEPCGGE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:6SI4GHXRJEUO5SEFPQGIEPCGGE","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":"b9973ed5a476a6c9d14b536d9b008eee6b85c151f9b850c34e8ca664891cb757","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-08-17T16:28:26Z","title_canon_sha256":"af9543c0682b1f636b0ddd9b73bd8128c8f4bbdab6a2442b5804e963790395f0"},"schema_version":"1.0","source":{"id":"2408.09243","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.09243","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"arxiv_version","alias_value":"2408.09243v1","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.09243","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_12","alias_value":"6SI4GHXRJEUO","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_16","alias_value":"6SI4GHXRJEUO5SEF","created_at":"2026-07-05T08:56:30Z"},{"alias_kind":"pith_short_8","alias_value":"6SI4GHXR","created_at":"2026-07-05T08:56:30Z"}],"graph_snapshots":[{"event_id":"sha256:6ee76dd5924aaf531b0a31199bcb0dfe6cee276bd081c974fb12bf616776a1d5","target":"graph","created_at":"2026-07-05T08:56:30Z","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/2408.09243/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study investigates scalar clouds around Kerr-Newman black holes within the Einstein-Maxwell-scalar model. Tachyonic instabilities are identified as the driving mechanism for scalar cloud formation. Employing the spectral method, we numerically compute wave functions and parameter space existence domains for both fundamental and excited scalar cloud modes. Our analysis demonstrates that black hole spin imposes an upper limit on the existence of scalar clouds, with excited modes requiring stronger tachyonic instabilities for their formation. These findings lay the groundwork for exploring t","authors_text":"Guangzhou Guo, Haitang Yang, Peng Wang, Tianshu Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-08-17T16:28:26Z","title":"Stationary Scalar Clouds around Kerr-Newman Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.09243","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":"sha256:9a7a8e21598b95193dab4e5d77eb07e3a18cecd9cdd12fb0c4ff5aa117f0866b","target":"record","created_at":"2026-07-05T08:56:30Z","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":"b9973ed5a476a6c9d14b536d9b008eee6b85c151f9b850c34e8ca664891cb757","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-08-17T16:28:26Z","title_canon_sha256":"af9543c0682b1f636b0ddd9b73bd8128c8f4bbdab6a2442b5804e963790395f0"},"schema_version":"1.0","source":{"id":"2408.09243","kind":"arxiv","version":1}},"canonical_sha256":"f491c31ef14928eec8857c0c823c4631376d1968439236e9f81bcc2440432324","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f491c31ef14928eec8857c0c823c4631376d1968439236e9f81bcc2440432324","first_computed_at":"2026-07-05T08:56:30.119102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:56:30.119102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kA4/Ys8Q4HphfJj5lRi/t4ybT3o8G6YSt6/yyOzhtLlOpEL3UZiSMAdCWFuq1zkUfEFH6AxgmAZRF1HC9dtfCw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:56:30.119591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.09243","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a7a8e21598b95193dab4e5d77eb07e3a18cecd9cdd12fb0c4ff5aa117f0866b","sha256:6ee76dd5924aaf531b0a31199bcb0dfe6cee276bd081c974fb12bf616776a1d5"],"state_sha256":"b2580b8fb3c756a5d1b880aaaf99d8526329a540a5582c867ff6cde4d3a06c4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a6a5kNbjhDSfIrwt+GnYNoZjIczVBQQh2sUw1in50I1181uV6bQ1UvUU3603eGkTkEI4ou6tPfMms2hnaZGACA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T11:20:29.379671Z","bundle_sha256":"20d7767c820242c13a160c7eff1e0acebc1136c69cd9549eae3353f1c97cd282"}}