{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:XQTQWPQADDI4OU7E3C2KRLZ4MA","short_pith_number":"pith:XQTQWPQA","canonical_record":{"source":{"id":"2004.13308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-28T05:20:03Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b849f2a646a2cf47df690de9734892438dd2ce2ca6947d120f6f90dd3f1110d1","abstract_canon_sha256":"992f97438bc82036f6fb768da5d0d14f72a13f36a2a964a5e9a1b11374e7b82e"},"schema_version":"1.0"},"canonical_sha256":"bc270b3e0018d1c753e4d8b4a8af3c6016c12e838cc6bd9fbd92b3879acff90e","source":{"kind":"arxiv","id":"2004.13308","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.13308","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"arxiv_version","alias_value":"2004.13308v1","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.13308","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_12","alias_value":"XQTQWPQADDI4","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_16","alias_value":"XQTQWPQADDI4OU7E","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_8","alias_value":"XQTQWPQA","created_at":"2026-07-05T01:52:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:XQTQWPQADDI4OU7E3C2KRLZ4MA","target":"record","payload":{"canonical_record":{"source":{"id":"2004.13308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-28T05:20:03Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"b849f2a646a2cf47df690de9734892438dd2ce2ca6947d120f6f90dd3f1110d1","abstract_canon_sha256":"992f97438bc82036f6fb768da5d0d14f72a13f36a2a964a5e9a1b11374e7b82e"},"schema_version":"1.0"},"canonical_sha256":"bc270b3e0018d1c753e4d8b4a8af3c6016c12e838cc6bd9fbd92b3879acff90e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:52:18.185109Z","signature_b64":"oSOrsrNiz9bE3D4V+hmqnb1DQxHu7ZzR7CFPgCFTidsUGs/lkz/astTxx1SKCopBSHFgIBItGswszSqjRbLJCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc270b3e0018d1c753e4d8b4a8af3c6016c12e838cc6bd9fbd92b3879acff90e","last_reissued_at":"2026-07-05T01:52:18.184612Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:52:18.184612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.13308","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":"2026-07-05T01:52:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MQjcCweiX5vx6vmgLDio4AaAQcQGOvNp/KDfnbd/RkK5AX26pbQrirH/9GLq+hbxP16HsR09H+n05AQx0RHRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:43:05.141659Z"},"content_sha256":"69fd5198b170eab5b5e92d0f44902f53086420524d505d8d2e4deb9a5c6e3697","schema_version":"1.0","event_id":"sha256:69fd5198b170eab5b5e92d0f44902f53086420524d505d8d2e4deb9a5c6e3697"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:XQTQWPQADDI4OU7E3C2KRLZ4MA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photon directional profile from stimulated decay of axion clouds with arbitrary axion spatial distributions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"hep-ph","authors_text":"Liang Chen, Thomas W. Kephart","submitted_at":"2020-04-28T05:20:03Z","abstract_excerpt":"We model clusters of axions with spherically symmetric momentum but arbitrary spatial distributions and study the directional profile of photos produced in their evolution through spontaneous and stimulated decay of axions via the process $a \\rightarrow \\gamma + \\gamma$. Several specific examples are presented."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.13308","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/2004.13308/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":"2026-07-05T01:52:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pNogQhHEt0Syk2YeL85uY9AKr6p0T4677OWknELCovO3JuA4TzbPPcHv0ETrNcHYOKbTlp+F8HXpKo2JjH7BBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:43:05.142168Z"},"content_sha256":"a2e5d99fa68bbf0eb69eb7cef487b2afd2f3dcd6f280c35cb2a5422b225ddfc0","schema_version":"1.0","event_id":"sha256:a2e5d99fa68bbf0eb69eb7cef487b2afd2f3dcd6f280c35cb2a5422b225ddfc0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/bundle.json","state_url":"https://pith.science/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/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":"2026-08-12T08:43:05Z","links":{"resolver":"https://pith.science/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA","bundle":"https://pith.science/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/bundle.json","state":"https://pith.science/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQTQWPQADDI4OU7E3C2KRLZ4MA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:XQTQWPQADDI4OU7E3C2KRLZ4MA","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":"992f97438bc82036f6fb768da5d0d14f72a13f36a2a964a5e9a1b11374e7b82e","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-28T05:20:03Z","title_canon_sha256":"b849f2a646a2cf47df690de9734892438dd2ce2ca6947d120f6f90dd3f1110d1"},"schema_version":"1.0","source":{"id":"2004.13308","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.13308","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"arxiv_version","alias_value":"2004.13308v1","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.13308","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_12","alias_value":"XQTQWPQADDI4","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_16","alias_value":"XQTQWPQADDI4OU7E","created_at":"2026-07-05T01:52:18Z"},{"alias_kind":"pith_short_8","alias_value":"XQTQWPQA","created_at":"2026-07-05T01:52:18Z"}],"graph_snapshots":[{"event_id":"sha256:a2e5d99fa68bbf0eb69eb7cef487b2afd2f3dcd6f280c35cb2a5422b225ddfc0","target":"graph","created_at":"2026-07-05T01:52:18Z","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/2004.13308/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We model clusters of axions with spherically symmetric momentum but arbitrary spatial distributions and study the directional profile of photos produced in their evolution through spontaneous and stimulated decay of axions via the process $a \\rightarrow \\gamma + \\gamma$. Several specific examples are presented.","authors_text":"Liang Chen, Thomas W. Kephart","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-28T05:20:03Z","title":"Photon directional profile from stimulated decay of axion clouds with arbitrary axion spatial distributions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.13308","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":"sha256:69fd5198b170eab5b5e92d0f44902f53086420524d505d8d2e4deb9a5c6e3697","target":"record","created_at":"2026-07-05T01:52:18Z","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":"992f97438bc82036f6fb768da5d0d14f72a13f36a2a964a5e9a1b11374e7b82e","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-04-28T05:20:03Z","title_canon_sha256":"b849f2a646a2cf47df690de9734892438dd2ce2ca6947d120f6f90dd3f1110d1"},"schema_version":"1.0","source":{"id":"2004.13308","kind":"arxiv","version":1}},"canonical_sha256":"bc270b3e0018d1c753e4d8b4a8af3c6016c12e838cc6bd9fbd92b3879acff90e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc270b3e0018d1c753e4d8b4a8af3c6016c12e838cc6bd9fbd92b3879acff90e","first_computed_at":"2026-07-05T01:52:18.184612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:52:18.184612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oSOrsrNiz9bE3D4V+hmqnb1DQxHu7ZzR7CFPgCFTidsUGs/lkz/astTxx1SKCopBSHFgIBItGswszSqjRbLJCg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:52:18.185109Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.13308","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69fd5198b170eab5b5e92d0f44902f53086420524d505d8d2e4deb9a5c6e3697","sha256:a2e5d99fa68bbf0eb69eb7cef487b2afd2f3dcd6f280c35cb2a5422b225ddfc0"],"state_sha256":"24a7d46dbc00d4bdc0e4e07e3ef170dccfc7ca81962bcee287ab9d07966e52da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oY8ib4QfZzKf5vGNtQpK0Zlfy9LXv8q+u4lb+wWWPf/CFQg1cwSoErVG0csRwJzLcjZjw0lfnjHiszghAIyEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T08:43:05.147321Z","bundle_sha256":"a70d6e295f6f12fa621478435f0027b0dfa35596df6b53df78dc466e6778f3e5"}}