{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:RGFUQ2IHOFZL7VMHBJWWVZ4BCQ","short_pith_number":"pith:RGFUQ2IH","schema_version":"1.0","canonical_sha256":"898b4869077172bfd5870a6d6ae7811433fa3d937a947e5e178503d5c23120ee","source":{"kind":"arxiv","id":"2606.05738","version":1},"attestation_state":"computed","paper":{"title":"Joint Multi-Period Fermi-LAT and LHAASO Constraints on Axion-Like Particles from Mrk 421 Using Profile Likelihood with Gaussian Copula Correlation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ao Wang, Chuyuan Yang, Guangbo Long, Huaizhen Li, Hushan Xu, Jiancheng Wang, Longhua Qin, Weiwei Na, Xiaogu Zhong, Yubin Li, Zunli Yuan","submitted_at":"2026-06-04T06:04:09Z","abstract_excerpt":"We construct a multi-epoch joint profile-likelihood framework to constrain axion-like particles (ALPs), employing a Gaussian copula ($\\rho=0.03$) to account for weak correlations among distinct observational periods. Different from traditional independent likelihood addition, our scheme globally optimizes nuisance parameters under the no-ALP hypothesis prior to profiling ALP mass $m_a$ and coupling $g_{a\\gamma}$, enhancing numerical stability and statistical consistency. Using five sets of simultaneous Fermi-LAT and LHAASO data of Mrk 421, we implement both two-zone hybrid and single-zone hadr"},"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":"2606.05738","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-04T06:04:09Z","cross_cats_sorted":[],"title_canon_sha256":"a7bf6cc752f7bfa6c15db27a2c7ea17c029a074e683e29fdb7864074b4e17fef","abstract_canon_sha256":"02b504b176f54a51562dc60a042de574bc4f9ccb0b3bcec9b290e609781d99b9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-05T01:15:01.247922Z","signature_b64":"msERY3zd4Gn6k8Ba8wawsRAGh6NPaLjGInvPKrJZYP4PbgK4kjvsG/lUOND0vq6T7Hd+9E0XlpgD8wYMVs1QDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"898b4869077172bfd5870a6d6ae7811433fa3d937a947e5e178503d5c23120ee","last_reissued_at":"2026-06-05T01:15:01.247496Z","signature_status":"signed_v1","first_computed_at":"2026-06-05T01:15:01.247496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Joint Multi-Period Fermi-LAT and LHAASO Constraints on Axion-Like Particles from Mrk 421 Using Profile Likelihood with Gaussian Copula Correlation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ao Wang, Chuyuan Yang, Guangbo Long, Huaizhen Li, Hushan Xu, Jiancheng Wang, Longhua Qin, Weiwei Na, Xiaogu Zhong, Yubin Li, Zunli Yuan","submitted_at":"2026-06-04T06:04:09Z","abstract_excerpt":"We construct a multi-epoch joint profile-likelihood framework to constrain axion-like particles (ALPs), employing a Gaussian copula ($\\rho=0.03$) to account for weak correlations among distinct observational periods. Different from traditional independent likelihood addition, our scheme globally optimizes nuisance parameters under the no-ALP hypothesis prior to profiling ALP mass $m_a$ and coupling $g_{a\\gamma}$, enhancing numerical stability and statistical consistency. Using five sets of simultaneous Fermi-LAT and LHAASO data of Mrk 421, we implement both two-zone hybrid and single-zone hadr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.05738","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/2606.05738/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":"2606.05738","created_at":"2026-06-05T01:15:01.247558+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.05738v1","created_at":"2026-06-05T01:15:01.247558+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.05738","created_at":"2026-06-05T01:15:01.247558+00:00"},{"alias_kind":"pith_short_12","alias_value":"RGFUQ2IHOFZL","created_at":"2026-06-05T01:15:01.247558+00:00"},{"alias_kind":"pith_short_16","alias_value":"RGFUQ2IHOFZL7VMH","created_at":"2026-06-05T01:15:01.247558+00:00"},{"alias_kind":"pith_short_8","alias_value":"RGFUQ2IH","created_at":"2026-06-05T01:15:01.247558+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ","json":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ.json","graph_json":"https://pith.science/api/pith-number/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/graph.json","events_json":"https://pith.science/api/pith-number/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/events.json","paper":"https://pith.science/paper/RGFUQ2IH"},"agent_actions":{"view_html":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ","download_json":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ.json","view_paper":"https://pith.science/paper/RGFUQ2IH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.05738&json=true","fetch_graph":"https://pith.science/api/pith-number/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/graph.json","fetch_events":"https://pith.science/api/pith-number/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/action/storage_attestation","attest_author":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/action/author_attestation","sign_citation":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/action/citation_signature","submit_replication":"https://pith.science/pith/RGFUQ2IHOFZL7VMHBJWWVZ4BCQ/action/replication_record"}},"created_at":"2026-06-05T01:15:01.247558+00:00","updated_at":"2026-06-05T01:15:01.247558+00:00"}