{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:KV3BU4SVBUVAZLNVHRMQ7HLAYL","short_pith_number":"pith:KV3BU4SV","canonical_record":{"source":{"id":"2212.09772","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-12-19T19:00:02Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"7d111059d1ab197266dd856e5e12c9f40dae86aae9c9608270beb1c2b038ef6a","abstract_canon_sha256":"50d482e7f0dfbe313430c2a75362dcfd03d8c683e5a4614580469c2602f2012e"},"schema_version":"1.0"},"canonical_sha256":"55761a72550d2a0cadb53c590f9d60c2df6d7a73c37f242fc8cd7abc82fc016b","source":{"kind":"arxiv","id":"2212.09772","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.09772","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"arxiv_version","alias_value":"2212.09772v2","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.09772","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_12","alias_value":"KV3BU4SVBUVA","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_16","alias_value":"KV3BU4SVBUVAZLNV","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_8","alias_value":"KV3BU4SV","created_at":"2026-07-05T06:03:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:KV3BU4SVBUVAZLNVHRMQ7HLAYL","target":"record","payload":{"canonical_record":{"source":{"id":"2212.09772","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-12-19T19:00:02Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"7d111059d1ab197266dd856e5e12c9f40dae86aae9c9608270beb1c2b038ef6a","abstract_canon_sha256":"50d482e7f0dfbe313430c2a75362dcfd03d8c683e5a4614580469c2602f2012e"},"schema_version":"1.0"},"canonical_sha256":"55761a72550d2a0cadb53c590f9d60c2df6d7a73c37f242fc8cd7abc82fc016b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:03:10.874309Z","signature_b64":"R6ZoiDksjx1x2zvsIJDuLxW3x0iZX4h+fE+1SnmoTzilXXXCcRAmRPt7a+DkI3dQzlre0t64On6lzZMrgOBHBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55761a72550d2a0cadb53c590f9d60c2df6d7a73c37f242fc8cd7abc82fc016b","last_reissued_at":"2026-07-05T06:03:10.873834Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:03:10.873834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.09772","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":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mAUnx5wq4pVG4pqAYbryzJhLfk2UZgG53wcn2eUapUYdU3ln3s0MAig7SO4MGgDqPo6SzLpuj1AdefLfQ3w7Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:29:04.943046Z"},"content_sha256":"488377c385ae1176b05038f1f246401e7ac801e380c996eb15b46bd35a6cb61b","schema_version":"1.0","event_id":"sha256:488377c385ae1176b05038f1f246401e7ac801e380c996eb15b46bd35a6cb61b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:KV3BU4SVBUVAZLNVHRMQ7HLAYL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dark photon superradiance: Electrodynamics and multimessenger signals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Cristina Mondino, Daniel Egana-Ugrinovic, Junwu Huang, Masha Baryakhtar, Nils Siemonsen, William E. East","submitted_at":"2022-12-19T19:00:02Z","abstract_excerpt":"We study the electrodynamics of a kinetically mixed dark photon cloud that forms through superradiance around a spinning black hole, and design strategies to search for the resulting multimessenger signals. A dark photon superradiance cloud sources a rotating dark electromagnetic field which, through kinetic mixing, induces a rotating visible electromagnetic field. Standard model charged particles entering this field initiate a transient phase of particle production that populates a plasma inside the cloud and leads to a system which shares qualitative features with a pulsar magnetosphere. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.09772","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/2212.09772/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":"2026-07-05T06:03:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rDrx4HTlIlqInp678IPF4qYeDLzuj8wMHWgmBBR7nI+W86DZ7Yn3MLwocneb/QtSVqOM/G1IZkqRu3oHY9C3Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:29:04.943550Z"},"content_sha256":"4a1a189b10fd00b6daa3bcfe751b9145a41b7b4aa32e301eb738aebb81c2b349","schema_version":"1.0","event_id":"sha256:4a1a189b10fd00b6daa3bcfe751b9145a41b7b4aa32e301eb738aebb81c2b349"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/bundle.json","state_url":"https://pith.science/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/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":"2026-08-06T06:29:04Z","links":{"resolver":"https://pith.science/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL","bundle":"https://pith.science/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/bundle.json","state":"https://pith.science/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KV3BU4SVBUVAZLNVHRMQ7HLAYL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:KV3BU4SVBUVAZLNVHRMQ7HLAYL","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":"50d482e7f0dfbe313430c2a75362dcfd03d8c683e5a4614580469c2602f2012e","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-12-19T19:00:02Z","title_canon_sha256":"7d111059d1ab197266dd856e5e12c9f40dae86aae9c9608270beb1c2b038ef6a"},"schema_version":"1.0","source":{"id":"2212.09772","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.09772","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"arxiv_version","alias_value":"2212.09772v2","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.09772","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_12","alias_value":"KV3BU4SVBUVA","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_16","alias_value":"KV3BU4SVBUVAZLNV","created_at":"2026-07-05T06:03:10Z"},{"alias_kind":"pith_short_8","alias_value":"KV3BU4SV","created_at":"2026-07-05T06:03:10Z"}],"graph_snapshots":[{"event_id":"sha256:4a1a189b10fd00b6daa3bcfe751b9145a41b7b4aa32e301eb738aebb81c2b349","target":"graph","created_at":"2026-07-05T06:03:10Z","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/2212.09772/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the electrodynamics of a kinetically mixed dark photon cloud that forms through superradiance around a spinning black hole, and design strategies to search for the resulting multimessenger signals. A dark photon superradiance cloud sources a rotating dark electromagnetic field which, through kinetic mixing, induces a rotating visible electromagnetic field. Standard model charged particles entering this field initiate a transient phase of particle production that populates a plasma inside the cloud and leads to a system which shares qualitative features with a pulsar magnetosphere. We ","authors_text":"Cristina Mondino, Daniel Egana-Ugrinovic, Junwu Huang, Masha Baryakhtar, Nils Siemonsen, William E. East","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-12-19T19:00:02Z","title":"Dark photon superradiance: Electrodynamics and multimessenger signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.09772","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":"sha256:488377c385ae1176b05038f1f246401e7ac801e380c996eb15b46bd35a6cb61b","target":"record","created_at":"2026-07-05T06:03:10Z","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":"50d482e7f0dfbe313430c2a75362dcfd03d8c683e5a4614580469c2602f2012e","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-12-19T19:00:02Z","title_canon_sha256":"7d111059d1ab197266dd856e5e12c9f40dae86aae9c9608270beb1c2b038ef6a"},"schema_version":"1.0","source":{"id":"2212.09772","kind":"arxiv","version":2}},"canonical_sha256":"55761a72550d2a0cadb53c590f9d60c2df6d7a73c37f242fc8cd7abc82fc016b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"55761a72550d2a0cadb53c590f9d60c2df6d7a73c37f242fc8cd7abc82fc016b","first_computed_at":"2026-07-05T06:03:10.873834Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:03:10.873834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R6ZoiDksjx1x2zvsIJDuLxW3x0iZX4h+fE+1SnmoTzilXXXCcRAmRPt7a+DkI3dQzlre0t64On6lzZMrgOBHBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:03:10.874309Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.09772","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:488377c385ae1176b05038f1f246401e7ac801e380c996eb15b46bd35a6cb61b","sha256:4a1a189b10fd00b6daa3bcfe751b9145a41b7b4aa32e301eb738aebb81c2b349"],"state_sha256":"02696ade6f96976dc6823c53480e93c0b69461ac2abf2694d184928f376ba345"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qJRBCDvsNKitE7RB8d+TueT8Gk1gQBA8H981R5LfgwooBZ3RgH21V6EnsS9qHm/qFNkSVccpigUfCPwQwYovDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T06:29:04.947244Z","bundle_sha256":"b7f5800aa6b2a769a0cce93872759e372de6374dbe6290e27f89b01af64136b3"}}