{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:ER5Z3QBEM3DIWPBEXZN5A5OSOH","short_pith_number":"pith:ER5Z3QBE","canonical_record":{"source":{"id":"2311.01565","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-02T19:41:03Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"748694c4f0f512270a10b55cee471f163978d842cacbf76a60e33e2795e670ec","abstract_canon_sha256":"0e8ab560b9ad949174f6264212921c688ac6623629fa79ec52b0d6fe521545ab"},"schema_version":"1.0"},"canonical_sha256":"247b9dc02466c68b3c24be5bd075d271cc2e5281893de4f52808769012723478","source":{"kind":"arxiv","id":"2311.01565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.01565","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"2311.01565v1","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.01565","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"ER5Z3QBEM3DI","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"ER5Z3QBEM3DIWPBE","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"ER5Z3QBE","created_at":"2026-07-05T07:08:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:ER5Z3QBEM3DIWPBEXZN5A5OSOH","target":"record","payload":{"canonical_record":{"source":{"id":"2311.01565","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-02T19:41:03Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"748694c4f0f512270a10b55cee471f163978d842cacbf76a60e33e2795e670ec","abstract_canon_sha256":"0e8ab560b9ad949174f6264212921c688ac6623629fa79ec52b0d6fe521545ab"},"schema_version":"1.0"},"canonical_sha256":"247b9dc02466c68b3c24be5bd075d271cc2e5281893de4f52808769012723478","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:08:31.257060Z","signature_b64":"VYYdAjQRvx1Wc1zX3TyYaWXyO5tL+1Ux2hLT8RY7mBlvIPUfEMrovAr42Qi0zdXvdwqbnSYLDJ+doEy/3vFTDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"247b9dc02466c68b3c24be5bd075d271cc2e5281893de4f52808769012723478","last_reissued_at":"2026-07-05T07:08:31.256587Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:08:31.256587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.01565","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":"2026-07-05T07:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fRiTFutxk0sOVjFcyALO3t0fr3K24uXwbYMHCNMSTalNZZ0UNS37Y1+cs8+wK64jyF65YndI1XIPODIVsVwWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:12:46.493089Z"},"content_sha256":"3ab39f40304376668b60c54b3f812c42e263a186aa8252df9b179e95fd594abc","schema_version":"1.0","event_id":"sha256:3ab39f40304376668b60c54b3f812c42e263a186aa8252df9b179e95fd594abc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:ER5Z3QBEM3DIWPBEXZN5A5OSOH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the Existence of Axion Clouds in M87* with Closure Trace Analyses","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Avery E. Broderick, Zhiren Wang","submitted_at":"2023-11-02T19:41:03Z","abstract_excerpt":"Black holes can amplify incoming bosonic waves via rotational superradiance, inducing bound states of ultralight bosons around them. This phenomenon has the potential to confine the parameter spaces of new bosons. Axions and axion-like particles (ALPs) are candidate beyond-standard-model particles that can form such clouds around supermassive black holes (SMBHs) and impact the polarization signal in a similar fashion to Faraday rotation via axion-photon coupling. Prior efforts have used polarized images from the Event Horizon Telescope (EHT) M87 2017 observations to limit the dimensionless axi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.01565","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/2311.01565/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":"2026-07-05T07:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LU8vBYD9YIHlHE73tJHgwhODRrUskyG5RkaxUM4zmAOLbIykbeJKwWi6hksPNWw+vbSCRFWUm1eoYOSkXC49DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:12:46.493592Z"},"content_sha256":"96c12369f055a7444dfa3afddf029fa4ba74a23f5440a174c7031b80ead50085","schema_version":"1.0","event_id":"sha256:96c12369f055a7444dfa3afddf029fa4ba74a23f5440a174c7031b80ead50085"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/bundle.json","state_url":"https://pith.science/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/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":"2026-08-05T08:12:46Z","links":{"resolver":"https://pith.science/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH","bundle":"https://pith.science/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/bundle.json","state":"https://pith.science/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ER5Z3QBEM3DIWPBEXZN5A5OSOH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:ER5Z3QBEM3DIWPBEXZN5A5OSOH","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":"0e8ab560b9ad949174f6264212921c688ac6623629fa79ec52b0d6fe521545ab","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-02T19:41:03Z","title_canon_sha256":"748694c4f0f512270a10b55cee471f163978d842cacbf76a60e33e2795e670ec"},"schema_version":"1.0","source":{"id":"2311.01565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.01565","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"2311.01565v1","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.01565","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"ER5Z3QBEM3DI","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"ER5Z3QBEM3DIWPBE","created_at":"2026-07-05T07:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"ER5Z3QBE","created_at":"2026-07-05T07:08:31Z"}],"graph_snapshots":[{"event_id":"sha256:96c12369f055a7444dfa3afddf029fa4ba74a23f5440a174c7031b80ead50085","target":"graph","created_at":"2026-07-05T07:08:31Z","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/2311.01565/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Black holes can amplify incoming bosonic waves via rotational superradiance, inducing bound states of ultralight bosons around them. This phenomenon has the potential to confine the parameter spaces of new bosons. Axions and axion-like particles (ALPs) are candidate beyond-standard-model particles that can form such clouds around supermassive black holes (SMBHs) and impact the polarization signal in a similar fashion to Faraday rotation via axion-photon coupling. Prior efforts have used polarized images from the Event Horizon Telescope (EHT) M87 2017 observations to limit the dimensionless axi","authors_text":"Avery E. Broderick, Zhiren Wang","cross_cats":["astro-ph.CO","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-02T19:41:03Z","title":"Constraining the Existence of Axion Clouds in M87* with Closure Trace Analyses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.01565","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":"sha256:3ab39f40304376668b60c54b3f812c42e263a186aa8252df9b179e95fd594abc","target":"record","created_at":"2026-07-05T07:08:31Z","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":"0e8ab560b9ad949174f6264212921c688ac6623629fa79ec52b0d6fe521545ab","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-11-02T19:41:03Z","title_canon_sha256":"748694c4f0f512270a10b55cee471f163978d842cacbf76a60e33e2795e670ec"},"schema_version":"1.0","source":{"id":"2311.01565","kind":"arxiv","version":1}},"canonical_sha256":"247b9dc02466c68b3c24be5bd075d271cc2e5281893de4f52808769012723478","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"247b9dc02466c68b3c24be5bd075d271cc2e5281893de4f52808769012723478","first_computed_at":"2026-07-05T07:08:31.256587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:08:31.256587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VYYdAjQRvx1Wc1zX3TyYaWXyO5tL+1Ux2hLT8RY7mBlvIPUfEMrovAr42Qi0zdXvdwqbnSYLDJ+doEy/3vFTDg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:08:31.257060Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.01565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ab39f40304376668b60c54b3f812c42e263a186aa8252df9b179e95fd594abc","sha256:96c12369f055a7444dfa3afddf029fa4ba74a23f5440a174c7031b80ead50085"],"state_sha256":"2449a1b0e38eb9afe2217ddf2fce86494feb3c70b8e9f3645702069991d81d90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W/YBKBqy61sfDgAT8jB8jMlJmfgpPhFtS2rXPZGF2u59VO3QKp4tugu3ltpMEHbBfM3e0RGywckmROKnd3EwCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T08:12:46.496902Z","bundle_sha256":"2a169b5ccb13139ec18eb509f85d1a5fa47673c29f198f09b1416792e7419509"}}