{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:KUBIPPAJMYMRIYQFVW7QFNVTKB","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":"bbb773a02b3da3ec653603aa0a6a06bc63beeff5c4c55e5dfa74a15b951a1034","cross_cats_sorted":["math-ph","math.MP"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2025-03-06T19:00:00Z","title_canon_sha256":"fcdea4b2b93f5c0acfd5ee450dd26adab1830aab1016566e8d69e2e6b98c1615"},"schema_version":"1.0","source":{"id":"2503.04881","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.04881","created_at":"2026-07-05T11:59:58Z"},{"alias_kind":"arxiv_version","alias_value":"2503.04881v2","created_at":"2026-07-05T11:59:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.04881","created_at":"2026-07-05T11:59:58Z"},{"alias_kind":"pith_short_12","alias_value":"KUBIPPAJMYMR","created_at":"2026-07-05T11:59:58Z"},{"alias_kind":"pith_short_16","alias_value":"KUBIPPAJMYMRIYQF","created_at":"2026-07-05T11:59:58Z"},{"alias_kind":"pith_short_8","alias_value":"KUBIPPAJ","created_at":"2026-07-05T11:59:58Z"}],"graph_snapshots":[{"event_id":"sha256:3a6dffa4a2279430cafba156a0e95b6717f6ce038a3b660513773b3eeff78392","target":"graph","created_at":"2026-07-05T11:59:58Z","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/2503.04881/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We numerically analyze the behavior of a charged scalar field on a fixed extremal Reissner-Nordstr\\\"om background. We find an extension of the Aretakis instability characterized by an accumulation of charge on the extremal event horizon. In particular, when the charge coupling to the scalar field is sufficiently large, the charge density on the horizon asymptotes to a nonzero constant at late times. By constructing monochromatic initial data at the onset of charged superradiance, we give evidence supporting the claim that this instability is connected to the presence of a nearly zero-damped mo","authors_text":"Frans Pretorius, Zachary Gelles","cross_cats":["math-ph","math.MP"],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2025-03-06T19:00:00Z","title":"Accumulation of Charge on an Extremal Black Hole's Event Horizon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.04881","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":"sha256:74d8f2c6a3924054ba34f94347876721efda94242e42f43b4ceeb701b5825823","target":"record","created_at":"2026-07-05T11:59:58Z","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":"bbb773a02b3da3ec653603aa0a6a06bc63beeff5c4c55e5dfa74a15b951a1034","cross_cats_sorted":["math-ph","math.MP"],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"gr-qc","submitted_at":"2025-03-06T19:00:00Z","title_canon_sha256":"fcdea4b2b93f5c0acfd5ee450dd26adab1830aab1016566e8d69e2e6b98c1615"},"schema_version":"1.0","source":{"id":"2503.04881","kind":"arxiv","version":2}},"canonical_sha256":"550287bc096619146205adbf02b6b3507c9e51cf59713001aa6bfae866bee121","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"550287bc096619146205adbf02b6b3507c9e51cf59713001aa6bfae866bee121","first_computed_at":"2026-07-05T11:59:58.309180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:59:58.309180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nzQfgGwdXB7CqOG1i2Sn0E8u+t9q3On54Cc+FqcthiNtEC3xBeupAxEQl7XTjC2jv2FETUF6JE0g3bdCqhseDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:59:58.309807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.04881","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:74d8f2c6a3924054ba34f94347876721efda94242e42f43b4ceeb701b5825823","sha256:3a6dffa4a2279430cafba156a0e95b6717f6ce038a3b660513773b3eeff78392"],"state_sha256":"05f105c65605880b70ef46fa8d207f8097beb738956fe7ef6260757807d3e3c8"}