{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:2B2BI7DV4SRSLVBYNADRAIDLMF","short_pith_number":"pith:2B2BI7DV","schema_version":"1.0","canonical_sha256":"d074147c75e4a325d438680710206b61619ef56218494bcff56e503b7b47e9ec","source":{"kind":"arxiv","id":"2110.13636","version":3},"attestation_state":"computed","paper":{"title":"Searching for Axion-Like Particles with the Blazar Observations of MAGIC and Fermi-LAT","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Hai-Jun Li, Peng-fei Yin, Xiao-Jun Bi","submitted_at":"2021-10-26T12:32:56Z","abstract_excerpt":"We explore the axion-like particle (ALP)-photon oscillation effect in the $\\gamma$-ray spectra of the blazars Markarian 421 (Mrk 421) and PG 1553+113, which are measured by the Major Atmospheric Gamma Imaging Cherenkov Telescopes (MAGIC) and Fermi Large Area Telescope (Fermi-LAT) with high precision. We investigate the constraints on the ALP parameter space using the Mrk 421 and PG 1553+113 observations of 15 and 5 phases, respectively. We find that the combined analysis with all the 15 phases improves the limits from the Mrk 421 observations. The combined limit set by the Mrk 421 observations"},"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":"2110.13636","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-10-26T12:32:56Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"b476af88bcc96f10f463e4e7f057467b0220abd437b5c86919b8932fa10dff93","abstract_canon_sha256":"fa951d092e43d53e5e151beaa12bb14cc572a041679d36e947bda250c4785959"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:48:37.480902Z","signature_b64":"RDYSv6I1W3IQZ6j0QBcIppkEeXGQCTev+RAcTNO6z86QbySB78z/Kb1GSH2Ve2bd81M/Q2Uho3yBCNPSNnECAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d074147c75e4a325d438680710206b61619ef56218494bcff56e503b7b47e9ec","last_reissued_at":"2026-07-05T04:48:37.480447Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:48:37.480447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Searching for Axion-Like Particles with the Blazar Observations of MAGIC and Fermi-LAT","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Hai-Jun Li, Peng-fei Yin, Xiao-Jun Bi","submitted_at":"2021-10-26T12:32:56Z","abstract_excerpt":"We explore the axion-like particle (ALP)-photon oscillation effect in the $\\gamma$-ray spectra of the blazars Markarian 421 (Mrk 421) and PG 1553+113, which are measured by the Major Atmospheric Gamma Imaging Cherenkov Telescopes (MAGIC) and Fermi Large Area Telescope (Fermi-LAT) with high precision. We investigate the constraints on the ALP parameter space using the Mrk 421 and PG 1553+113 observations of 15 and 5 phases, respectively. We find that the combined analysis with all the 15 phases improves the limits from the Mrk 421 observations. The combined limit set by the Mrk 421 observations"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.13636","kind":"arxiv","version":3},"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/2110.13636/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":"2110.13636","created_at":"2026-07-05T04:48:37.480504+00:00"},{"alias_kind":"arxiv_version","alias_value":"2110.13636v3","created_at":"2026-07-05T04:48:37.480504+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.13636","created_at":"2026-07-05T04:48:37.480504+00:00"},{"alias_kind":"pith_short_12","alias_value":"2B2BI7DV4SRS","created_at":"2026-07-05T04:48:37.480504+00:00"},{"alias_kind":"pith_short_16","alias_value":"2B2BI7DV4SRSLVBY","created_at":"2026-07-05T04:48:37.480504+00:00"},{"alias_kind":"pith_short_8","alias_value":"2B2BI7DV","created_at":"2026-07-05T04:48:37.480504+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.01277","citing_title":"Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\\gamma$-ray Sky","ref_index":153,"is_internal_anchor":false},{"citing_arxiv_id":"2605.00549","citing_title":"Bounds on massive graviton-like particles from searches for axion-like particles coupling to photons","ref_index":108,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF","json":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF.json","graph_json":"https://pith.science/api/pith-number/2B2BI7DV4SRSLVBYNADRAIDLMF/graph.json","events_json":"https://pith.science/api/pith-number/2B2BI7DV4SRSLVBYNADRAIDLMF/events.json","paper":"https://pith.science/paper/2B2BI7DV"},"agent_actions":{"view_html":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF","download_json":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF.json","view_paper":"https://pith.science/paper/2B2BI7DV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2110.13636&json=true","fetch_graph":"https://pith.science/api/pith-number/2B2BI7DV4SRSLVBYNADRAIDLMF/graph.json","fetch_events":"https://pith.science/api/pith-number/2B2BI7DV4SRSLVBYNADRAIDLMF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF/action/storage_attestation","attest_author":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF/action/author_attestation","sign_citation":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF/action/citation_signature","submit_replication":"https://pith.science/pith/2B2BI7DV4SRSLVBYNADRAIDLMF/action/replication_record"}},"created_at":"2026-07-05T04:48:37.480504+00:00","updated_at":"2026-07-05T04:48:37.480504+00:00"}