{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:KZIPTKFKDYEMBWERB5D46LGHVF","short_pith_number":"pith:KZIPTKFK","schema_version":"1.0","canonical_sha256":"5650f9a8aa1e08c0d8910f47cf2cc7a97f994c7599d96d3f2dbc11596f23d2e0","source":{"kind":"arxiv","id":"1205.6428","version":2},"attestation_state":"computed","paper":{"title":"Irregularity in gamma ray source spectra as a signature of axionlike particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Denis Wouters, Pierre Brun","submitted_at":"2012-05-29T17:33:51Z","abstract_excerpt":"Oscillations from high energy photons into light pseudoscalar particles in an external magnetic field are expected to occur in some extensions of the standard model. It is usually assumed that those axionlike particles (ALPs) could produce a drop in the energy spectra of gamma ray sources and possibly decrease the opacity of the Universe for TeV gamma rays. We show here that these assumptions are in fact based on an average behavior that cannot happen in real observations of single sources. We propose a new method to search for photon-ALP oscillations, taking advantage of the fact that a singl"},"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":"1205.6428","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-05-29T17:33:51Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"dede352c77f038c1721e0c8693a09ad3c5b7d6e794b2a5c1e8878bf94b3877e1","abstract_canon_sha256":"788cfd764ad5f360d50a1eedfc97d9276733b1285616acc33d726352eed5ddfa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:45:43.450926Z","signature_b64":"0PY7ygUEqy1IiM1asOpcvRY0izCsC6EOCr5e6hWqgLNxMutUcuqEebaezWLKUNiaIALnRuXTTHbDSUA4SMRmCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5650f9a8aa1e08c0d8910f47cf2cc7a97f994c7599d96d3f2dbc11596f23d2e0","last_reissued_at":"2026-05-18T03:45:43.450379Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:45:43.450379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Irregularity in gamma ray source spectra as a signature of axionlike particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Denis Wouters, Pierre Brun","submitted_at":"2012-05-29T17:33:51Z","abstract_excerpt":"Oscillations from high energy photons into light pseudoscalar particles in an external magnetic field are expected to occur in some extensions of the standard model. It is usually assumed that those axionlike particles (ALPs) could produce a drop in the energy spectra of gamma ray sources and possibly decrease the opacity of the Universe for TeV gamma rays. We show here that these assumptions are in fact based on an average behavior that cannot happen in real observations of single sources. We propose a new method to search for photon-ALP oscillations, taking advantage of the fact that a singl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6428","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":""},"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":"1205.6428","created_at":"2026-05-18T03:45:43.450455+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.6428v2","created_at":"2026-05-18T03:45:43.450455+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6428","created_at":"2026-05-18T03:45:43.450455+00:00"},{"alias_kind":"pith_short_12","alias_value":"KZIPTKFKDYEM","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_16","alias_value":"KZIPTKFKDYEMBWER","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_8","alias_value":"KZIPTKFK","created_at":"2026-05-18T12:27:11.947152+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2606.10292","citing_title":"Constraints on axion-like particles from ultra-high-energy observations of M87 with the HAWC observatory","ref_index":65,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF","json":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF.json","graph_json":"https://pith.science/api/pith-number/KZIPTKFKDYEMBWERB5D46LGHVF/graph.json","events_json":"https://pith.science/api/pith-number/KZIPTKFKDYEMBWERB5D46LGHVF/events.json","paper":"https://pith.science/paper/KZIPTKFK"},"agent_actions":{"view_html":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF","download_json":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF.json","view_paper":"https://pith.science/paper/KZIPTKFK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.6428&json=true","fetch_graph":"https://pith.science/api/pith-number/KZIPTKFKDYEMBWERB5D46LGHVF/graph.json","fetch_events":"https://pith.science/api/pith-number/KZIPTKFKDYEMBWERB5D46LGHVF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF/action/storage_attestation","attest_author":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF/action/author_attestation","sign_citation":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF/action/citation_signature","submit_replication":"https://pith.science/pith/KZIPTKFKDYEMBWERB5D46LGHVF/action/replication_record"}},"created_at":"2026-05-18T03:45:43.450455+00:00","updated_at":"2026-05-18T03:45:43.450455+00:00"}