{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:HOEZEDFOBELAW6NHBU33CBLBO4","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":"682e6af857f896775493029af0d338d147d2be65ff9976e6b0113868d00eb63e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2023-02-10T02:41:06Z","title_canon_sha256":"4796aaf999dd7e643dab23061783a2c8e77e2b108c18c9c4fe46f200436166dd"},"schema_version":"1.0","source":{"id":"2302.05023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.05023","created_at":"2026-07-05T05:40:24Z"},{"alias_kind":"arxiv_version","alias_value":"2302.05023v1","created_at":"2026-07-05T05:40:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.05023","created_at":"2026-07-05T05:40:24Z"},{"alias_kind":"pith_short_12","alias_value":"HOEZEDFOBELA","created_at":"2026-07-05T05:40:24Z"},{"alias_kind":"pith_short_16","alias_value":"HOEZEDFOBELAW6NH","created_at":"2026-07-05T05:40:24Z"},{"alias_kind":"pith_short_8","alias_value":"HOEZEDFO","created_at":"2026-07-05T05:40:24Z"}],"graph_snapshots":[{"event_id":"sha256:a2692a978c579a6325336da6d32e756f5ca707880c47c1ccdde791e72f8c6681","target":"graph","created_at":"2026-07-05T05:40:24Z","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/2302.05023/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the framework of Einstein-Maxwell-scalar theory, we studied scalar field perturbations of Reissner-Nordstr\\\"{o}m-Melvin (RNM) black holes, which describes the RN black holes immersed in a uniform magnetic field. Due to the coupling to the Maxwell term, the scalar field acquires an effective mass whose square, in the presence of the magnetic field, will become negative somewhere outside the horizon for either sign of the coupling constant $\\alpha$, thus triggering the tachyonic instability and leading to spontaneous scalarization when $\\alpha$ is large enough. The magnetic field has signific","authors_text":"Hengyu Xu, Shao-Jun Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2023-02-10T02:41:06Z","title":"Tachyonic Instability of Reissner-Nordstr\\\"{o}m-Melvin Black Holes in Einstein-Maxwell-Scalar Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.05023","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":"sha256:475a1f440a246cb98827c7bd2a499faad6d779719d352d2b077e24f02583b874","target":"record","created_at":"2026-07-05T05:40:24Z","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":"682e6af857f896775493029af0d338d147d2be65ff9976e6b0113868d00eb63e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2023-02-10T02:41:06Z","title_canon_sha256":"4796aaf999dd7e643dab23061783a2c8e77e2b108c18c9c4fe46f200436166dd"},"schema_version":"1.0","source":{"id":"2302.05023","kind":"arxiv","version":1}},"canonical_sha256":"3b89920cae09160b79a70d37b1056177078c1cc8c90527f0916500c06112ae2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b89920cae09160b79a70d37b1056177078c1cc8c90527f0916500c06112ae2d","first_computed_at":"2026-07-05T05:40:24.131730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:40:24.131730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dJ8DQKGQWXR6zV0o01QrKNxxe8XbTyUGzb7r9/MoORzaXg6BqFhF++XL8MtETK30a1ONNs6CycVMbGTHbKNGBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:40:24.132154Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.05023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:475a1f440a246cb98827c7bd2a499faad6d779719d352d2b077e24f02583b874","sha256:a2692a978c579a6325336da6d32e756f5ca707880c47c1ccdde791e72f8c6681"],"state_sha256":"c2f01a9febae40a3e05a5fbbbe109e2e695e72b37e93c0e127472760214bcdde"}