{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:K3A4HH73JLVQBYEKLCXLAO2UP4","short_pith_number":"pith:K3A4HH73","schema_version":"1.0","canonical_sha256":"56c1c39ffb4aeb00e08a58aeb03b547f1efbb627224a075e55bd7d34c685599b","source":{"kind":"arxiv","id":"2607.27860","version":1},"attestation_state":"computed","paper":{"title":"Revealing the Physical Driver of the Baldwin Effect: Gas Density in the Broad-Line Region","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Cheng-Feng Peng, Dong-Li Jiang, Rui-Jing Lu, Shao-Hua Zhang, Wen-Qiang Liang, Xi-Heng Shi, Yi-Qi Chen, Zhe-Geng Chen, Zhi-Fu Chen, Zhi-Qing Chen, Zhi-Wen Wang","submitted_at":"2026-07-30T08:36:53Z","abstract_excerpt":"The Baldwin effect --- the inverse correlation between the equivalent width of emission lines and the continuum luminosity in active galactic nuclei (AGNs) --- has been known for nearly five decades, yet its physical origin remains poorly understood. Using a sample of 41,159 radio quasars constructed from the Sloan Digital Sky Survey and the Low-Frequency Array Two-metre Sky Survey, we investigate the origin and underlying physics of the Baldwin effect of MgII broad emission lines in both radio-quiet (RQ) and radio-loud (RL) quasars. We find that the slope $\\beta$ of the Baldwin effect is posi"},"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":"2607.27860","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-30T08:36:53Z","cross_cats_sorted":[],"title_canon_sha256":"dffba788f069ef82fe4e41293abb4f031090121e7e656c96fd7ce8782847c726","abstract_canon_sha256":"895363d14626e02459f6db7baaa4663d300d17b4abeeeaf8eeea571be96e92f4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56c1c39ffb4aeb00e08a58aeb03b547f1efbb627224a075e55bd7d34c685599b","last_reissued_at":"2026-07-31T01:34:30.383091Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-31T01:34:30.383091Z"},"graph_snapshot":{"paper":{"title":"Revealing the Physical Driver of the Baldwin Effect: Gas Density in the Broad-Line Region","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Cheng-Feng Peng, Dong-Li Jiang, Rui-Jing Lu, Shao-Hua Zhang, Wen-Qiang Liang, Xi-Heng Shi, Yi-Qi Chen, Zhe-Geng Chen, Zhi-Fu Chen, Zhi-Qing Chen, Zhi-Wen Wang","submitted_at":"2026-07-30T08:36:53Z","abstract_excerpt":"The Baldwin effect --- the inverse correlation between the equivalent width of emission lines and the continuum luminosity in active galactic nuclei (AGNs) --- has been known for nearly five decades, yet its physical origin remains poorly understood. Using a sample of 41,159 radio quasars constructed from the Sloan Digital Sky Survey and the Low-Frequency Array Two-metre Sky Survey, we investigate the origin and underlying physics of the Baldwin effect of MgII broad emission lines in both radio-quiet (RQ) and radio-loud (RL) quasars. We find that the slope $\\beta$ of the Baldwin effect is posi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27860","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/2607.27860/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":"2607.27860","created_at":"2026-07-31T01:34:30.386267+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.27860v1","created_at":"2026-07-31T01:34:30.386267+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27860","created_at":"2026-07-31T01:34:30.386267+00:00"},{"alias_kind":"pith_short_12","alias_value":"K3A4HH73JLVQ","created_at":"2026-07-31T01:34:30.386267+00:00"},{"alias_kind":"pith_short_16","alias_value":"K3A4HH73JLVQBYEK","created_at":"2026-07-31T01:34:30.386267+00:00"},{"alias_kind":"pith_short_8","alias_value":"K3A4HH73","created_at":"2026-07-31T01:34:30.386267+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/K3A4HH73JLVQBYEKLCXLAO2UP4","json":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4.json","graph_json":"https://pith.science/api/pith-number/K3A4HH73JLVQBYEKLCXLAO2UP4/graph.json","events_json":"https://pith.science/api/pith-number/K3A4HH73JLVQBYEKLCXLAO2UP4/events.json","paper":"https://pith.science/paper/K3A4HH73"},"agent_actions":{"view_html":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4","download_json":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4.json","view_paper":"https://pith.science/paper/K3A4HH73","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.27860&json=true","fetch_graph":"https://pith.science/api/pith-number/K3A4HH73JLVQBYEKLCXLAO2UP4/graph.json","fetch_events":"https://pith.science/api/pith-number/K3A4HH73JLVQBYEKLCXLAO2UP4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4/action/storage_attestation","attest_author":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4/action/author_attestation","sign_citation":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4/action/citation_signature","submit_replication":"https://pith.science/pith/K3A4HH73JLVQBYEKLCXLAO2UP4/action/replication_record"}},"created_at":"2026-07-31T01:34:30.386267+00:00","updated_at":"2026-07-31T01:34:30.386267+00:00"}