{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:CFNFHRWKXCVG5NHKASMIXBJFNY","short_pith_number":"pith:CFNFHRWK","schema_version":"1.0","canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","source":{"kind":"arxiv","id":"2009.10074","version":2},"attestation_state":"computed","paper":{"title":"Imprints of Axion Superradiance in the CMB","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Diego Blas, Samuel J. Witte","submitted_at":"2020-09-21T18:00:00Z","abstract_excerpt":"Light axions ($m_a \\lesssim 10^{-10}$ eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert regions of large axion number densities into an enormous flux of low-energy photons. In this work we consider the phenomenological implications of a superradiant axion cloud undergoing resonant decay. We show that the low energy photons produced from such events will be absorbed ove"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2009.10074","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-21T18:00:00Z","cross_cats_sorted":["gr-qc","hep-ph"],"title_canon_sha256":"804e3a4be3cdc5668da782a37caa9160a21faeeaeb879a1e72f18eb9684cd1aa","abstract_canon_sha256":"64ee13aee50f5e49cc9c444877c252bbe03876e8749b5740443b75edb2ffa4c9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:53:57.692294Z","signature_b64":"qDTg2gpmtI0w7x5+4gGRidh4C4MXNC6Tpi3EIz536cX0cbZq3DZlNHzqg1Sa6fXdGAq63kZKqVv1QrcLeX5/Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","last_reissued_at":"2026-07-05T01:53:57.691794Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:53:57.691794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Imprints of Axion Superradiance in the CMB","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Diego Blas, Samuel J. Witte","submitted_at":"2020-09-21T18:00:00Z","abstract_excerpt":"Light axions ($m_a \\lesssim 10^{-10}$ eV) can form dense clouds around rapidly rotating astrophysical black holes via a mechanism known as rotational superradiance. The coupling between axions and photons induces a parametric resonance, arising from the stimulated decay of the axion cloud, which can rapidly convert regions of large axion number densities into an enormous flux of low-energy photons. In this work we consider the phenomenological implications of a superradiant axion cloud undergoing resonant decay. We show that the low energy photons produced from such events will be absorbed ove"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.10074","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/2009.10074/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2009.10074","created_at":"2026-07-05T01:53:57.691848+00:00"},{"alias_kind":"arxiv_version","alias_value":"2009.10074v2","created_at":"2026-07-05T01:53:57.691848+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.10074","created_at":"2026-07-05T01:53:57.691848+00:00"},{"alias_kind":"pith_short_12","alias_value":"CFNFHRWKXCVG","created_at":"2026-07-05T01:53:57.691848+00:00"},{"alias_kind":"pith_short_16","alias_value":"CFNFHRWKXCVG5NHK","created_at":"2026-07-05T01:53:57.691848+00:00"},{"alias_kind":"pith_short_8","alias_value":"CFNFHRWK","created_at":"2026-07-05T01:53:57.691848+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.03655","citing_title":"Stepping Up Superradiance Constraints on Axions","ref_index":58,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY","json":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY.json","graph_json":"https://pith.science/api/pith-number/CFNFHRWKXCVG5NHKASMIXBJFNY/graph.json","events_json":"https://pith.science/api/pith-number/CFNFHRWKXCVG5NHKASMIXBJFNY/events.json","paper":"https://pith.science/paper/CFNFHRWK"},"agent_actions":{"view_html":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY","download_json":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY.json","view_paper":"https://pith.science/paper/CFNFHRWK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2009.10074&json=true","fetch_graph":"https://pith.science/api/pith-number/CFNFHRWKXCVG5NHKASMIXBJFNY/graph.json","fetch_events":"https://pith.science/api/pith-number/CFNFHRWKXCVG5NHKASMIXBJFNY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/action/storage_attestation","attest_author":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/action/author_attestation","sign_citation":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/action/citation_signature","submit_replication":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/action/replication_record"}},"created_at":"2026-07-05T01:53:57.691848+00:00","updated_at":"2026-07-05T01:53:57.691848+00:00"}