{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:CFNFHRWKXCVG5NHKASMIXBJFNY","short_pith_number":"pith:CFNFHRWK","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"},"canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","source":{"kind":"arxiv","id":"2009.10074","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.10074","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"arxiv_version","alias_value":"2009.10074v2","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.10074","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_12","alias_value":"CFNFHRWKXCVG","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_16","alias_value":"CFNFHRWKXCVG5NHK","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_8","alias_value":"CFNFHRWK","created_at":"2026-07-05T01:53:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:CFNFHRWKXCVG5NHKASMIXBJFNY","target":"record","payload":{"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"},"canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","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"},"source_kind":"arxiv","source_id":"2009.10074","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":"2026-07-05T01:53:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xMz/rGGlBaom97TJqSVeR4Fm+7VggXMc1m4tSNUm+RXnJhhqbVAenHs2C67EdSoS9DRFUdD7n+rX2lhyiwyrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:41:45.910089Z"},"content_sha256":"4c987a24f20ad6da905b63bd19343c000317468418c66b2dbc511d3dbbd471a8","schema_version":"1.0","event_id":"sha256:4c987a24f20ad6da905b63bd19343c000317468418c66b2dbc511d3dbbd471a8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:CFNFHRWKXCVG5NHKASMIXBJFNY","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:53:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"edtq56yDt3Uo7KjdjcV/peVdquMj2I6ojvse4ZJO4Z8WP3G79UGATZxr7gJtoqgQLu1IwahZgM0Zu0ITc3tPCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:41:45.910622Z"},"content_sha256":"2535a5a2043a4901680b2a2c26798254e6a63b86ba7778b2ce71cc3a42e3ca4c","schema_version":"1.0","event_id":"sha256:2535a5a2043a4901680b2a2c26798254e6a63b86ba7778b2ce71cc3a42e3ca4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/bundle.json","state_url":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/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":"2026-08-20T02:41:45Z","links":{"resolver":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY","bundle":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/bundle.json","state":"https://pith.science/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CFNFHRWKXCVG5NHKASMIXBJFNY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:CFNFHRWKXCVG5NHKASMIXBJFNY","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":"64ee13aee50f5e49cc9c444877c252bbe03876e8749b5740443b75edb2ffa4c9","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-21T18:00:00Z","title_canon_sha256":"804e3a4be3cdc5668da782a37caa9160a21faeeaeb879a1e72f18eb9684cd1aa"},"schema_version":"1.0","source":{"id":"2009.10074","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.10074","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"arxiv_version","alias_value":"2009.10074v2","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.10074","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_12","alias_value":"CFNFHRWKXCVG","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_16","alias_value":"CFNFHRWKXCVG5NHK","created_at":"2026-07-05T01:53:57Z"},{"alias_kind":"pith_short_8","alias_value":"CFNFHRWK","created_at":"2026-07-05T01:53:57Z"}],"graph_snapshots":[{"event_id":"sha256:2535a5a2043a4901680b2a2c26798254e6a63b86ba7778b2ce71cc3a42e3ca4c","target":"graph","created_at":"2026-07-05T01:53:57Z","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/2009.10074/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"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","authors_text":"Diego Blas, Samuel J. Witte","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-21T18:00:00Z","title":"Imprints of Axion Superradiance in the CMB"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.10074","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":"sha256:4c987a24f20ad6da905b63bd19343c000317468418c66b2dbc511d3dbbd471a8","target":"record","created_at":"2026-07-05T01:53:57Z","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":"64ee13aee50f5e49cc9c444877c252bbe03876e8749b5740443b75edb2ffa4c9","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-21T18:00:00Z","title_canon_sha256":"804e3a4be3cdc5668da782a37caa9160a21faeeaeb879a1e72f18eb9684cd1aa"},"schema_version":"1.0","source":{"id":"2009.10074","kind":"arxiv","version":2}},"canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"115a53c6cab8aa6eb4ea04988b85256e249d71f9f839ffec335e694f41f6eec3","first_computed_at":"2026-07-05T01:53:57.691794Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:53:57.691794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qDTg2gpmtI0w7x5+4gGRidh4C4MXNC6Tpi3EIz536cX0cbZq3DZlNHzqg1Sa6fXdGAq63kZKqVv1QrcLeX5/Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:53:57.692294Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.10074","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c987a24f20ad6da905b63bd19343c000317468418c66b2dbc511d3dbbd471a8","sha256:2535a5a2043a4901680b2a2c26798254e6a63b86ba7778b2ce71cc3a42e3ca4c"],"state_sha256":"36dbb995c024feb321fb242bf659fd8dd9ca53f35fff2d3852db5d57755b91cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7t0L6FWmJ48UQW1ZesIWn50NLgvQVVG+Npp69s93Xi1rYA6fAkX9dT3K++bq3WOX/XBzr4btucuB4D9ksRFWBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T02:41:45.914717Z","bundle_sha256":"3fbdfbcf92b2b479c73ae0aeae44e62ed793704cee252b7e4ee6760a16c46424"}}