{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:IFCUSCVUBX6BVCXAMZ6CWVBCSR","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":"1d980e36912aaed5b6231c7455f229db7dbdbd2774b0e6fc3f9aa36d2febefdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-15T15:10:01Z","title_canon_sha256":"8279d9d6394144bd41389896c0b848ef4004226b65fae9ed4ad776fbbb216680"},"schema_version":"1.0","source":{"id":"2401.07757","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.07757","created_at":"2026-07-05T08:13:52Z"},{"alias_kind":"arxiv_version","alias_value":"2401.07757v2","created_at":"2026-07-05T08:13:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.07757","created_at":"2026-07-05T08:13:52Z"},{"alias_kind":"pith_short_12","alias_value":"IFCUSCVUBX6B","created_at":"2026-07-05T08:13:52Z"},{"alias_kind":"pith_short_16","alias_value":"IFCUSCVUBX6BVCXA","created_at":"2026-07-05T08:13:52Z"},{"alias_kind":"pith_short_8","alias_value":"IFCUSCVU","created_at":"2026-07-05T08:13:52Z"}],"graph_snapshots":[{"event_id":"sha256:f10f9c29c4a812dbf817010f29963a45dc9c828233bf81d02dbb66dbaf6077b7","target":"graph","created_at":"2026-07-05T08:13:52Z","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/2401.07757/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spherical black-hole (BH) solutions have been found in the bumblebee gravity where a vector field nonminimally couples to the Ricci tensor. We study dynamic (in)stability associated with the gravitational and vector perturbations of odd parity against these bumblebee BHs. Under the plane-wave approximation, we find that bumblebee BHs do not suffer ghost instability, but gradient instability and tachyonic instability exist when the bumblebee charge exceeds certain values. The existence of the instabilities also depends on the nonminimal coupling constant $\\xi$ that, there is a minimal value $\\x","authors_text":"Dicong Liang, Lijing Shao, Rui Xu, Zhan-Feng Mai","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-15T15:10:01Z","title":"Dynamic instability analysis for bumblebee black holes: the odd parity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.07757","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:d5a5f23bd9eebfe09374c512ec6f22d777aaaf42b3ece621d55c283c3e9516a6","target":"record","created_at":"2026-07-05T08:13:52Z","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":"1d980e36912aaed5b6231c7455f229db7dbdbd2774b0e6fc3f9aa36d2febefdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-01-15T15:10:01Z","title_canon_sha256":"8279d9d6394144bd41389896c0b848ef4004226b65fae9ed4ad776fbbb216680"},"schema_version":"1.0","source":{"id":"2401.07757","kind":"arxiv","version":2}},"canonical_sha256":"4145490ab40dfc1a8ae0667c2b54229460caf0ee8a286d7d28f74d44f8f1c15e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4145490ab40dfc1a8ae0667c2b54229460caf0ee8a286d7d28f74d44f8f1c15e","first_computed_at":"2026-07-05T08:13:52.999395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:13:52.999395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iACsYjsWhT79YmzJC+2KSPTpJycc3355XTLjzAiJRxINlm/DOzk4tsss4/FJOUFQZRILvYTQEk7WXkT1zm6KAg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:13:52.999859Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.07757","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5a5f23bd9eebfe09374c512ec6f22d777aaaf42b3ece621d55c283c3e9516a6","sha256:f10f9c29c4a812dbf817010f29963a45dc9c828233bf81d02dbb66dbaf6077b7"],"state_sha256":"5fa5be336019f2af744364cdabd9d276b13436d7c118806f97195f4f32779408"}