{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:OUNLZ56M2NCLC32DJTS3WCLSW2","short_pith_number":"pith:OUNLZ56M","schema_version":"1.0","canonical_sha256":"751abcf7ccd344b16f434ce5bb0972b684a66c09342a3f5523e3de14c25be5c0","source":{"kind":"arxiv","id":"2408.07335","version":2},"attestation_state":"computed","paper":{"title":"Newly Discovered Changing-look Active Galactic Nuclei from SDSS and LAMOST Surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Mouyuan Sun, Qian Dong, Wei-Min Gu, Yong-Gang Zheng, Zhi-Xiang Zhang","submitted_at":"2024-08-14T07:17:41Z","abstract_excerpt":"Changing-look Active Galactic Nuclei (CL AGNs) exhibit drastic variations in broad emission lines (BELs), the mechanism of which remains unclear. Expanding the sample of CL AGNs is helpful to reveal the mechanism. This study aims to identify more CL AGNs by cross-matching spectroscopic data from the Sloan Digital Sky Survey (SDSS) and the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). Our approach to identify CL AGNs is based on the automatic spectral fitting, followed by detailed visual inspections. We identify a sample of $51$ CL AGNs through this method, in which $40$ C"},"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":"2408.07335","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-14T07:17:41Z","cross_cats_sorted":[],"title_canon_sha256":"333b88ce36ae1f18026e7a317792dc487debca574d62384bbc4d5d2d06bd50c6","abstract_canon_sha256":"d7ad65ffcc27628d82cb5114678b507ce2297b282aa0e0e8da18bae3f23c44e1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:52:37.526906Z","signature_b64":"+8EIyESDlekDH6oQVgJCTMiGDdzvT/rbNhD1hS8qnlLwPxzpQU1OF7evVycXCHjrLx63oNBjW4q1FJQkLuogAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"751abcf7ccd344b16f434ce5bb0972b684a66c09342a3f5523e3de14c25be5c0","last_reissued_at":"2026-07-05T10:52:37.526448Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:52:37.526448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Newly Discovered Changing-look Active Galactic Nuclei from SDSS and LAMOST Surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Mouyuan Sun, Qian Dong, Wei-Min Gu, Yong-Gang Zheng, Zhi-Xiang Zhang","submitted_at":"2024-08-14T07:17:41Z","abstract_excerpt":"Changing-look Active Galactic Nuclei (CL AGNs) exhibit drastic variations in broad emission lines (BELs), the mechanism of which remains unclear. Expanding the sample of CL AGNs is helpful to reveal the mechanism. This study aims to identify more CL AGNs by cross-matching spectroscopic data from the Sloan Digital Sky Survey (SDSS) and the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). Our approach to identify CL AGNs is based on the automatic spectral fitting, followed by detailed visual inspections. We identify a sample of $51$ CL AGNs through this method, in which $40$ C"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.07335","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.07335/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":"2408.07335","created_at":"2026-07-05T10:52:37.526508+00:00"},{"alias_kind":"arxiv_version","alias_value":"2408.07335v2","created_at":"2026-07-05T10:52:37.526508+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.07335","created_at":"2026-07-05T10:52:37.526508+00:00"},{"alias_kind":"pith_short_12","alias_value":"OUNLZ56M2NCL","created_at":"2026-07-05T10:52:37.526508+00:00"},{"alias_kind":"pith_short_16","alias_value":"OUNLZ56M2NCLC32D","created_at":"2026-07-05T10:52:37.526508+00:00"},{"alias_kind":"pith_short_8","alias_value":"OUNLZ56M","created_at":"2026-07-05T10:52:37.526508+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2604.12109","citing_title":"Identifying Changing-Look AGN Transitions in Light Curve Data with the Zwicky Transient Facility","ref_index":24,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2","json":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2.json","graph_json":"https://pith.science/api/pith-number/OUNLZ56M2NCLC32DJTS3WCLSW2/graph.json","events_json":"https://pith.science/api/pith-number/OUNLZ56M2NCLC32DJTS3WCLSW2/events.json","paper":"https://pith.science/paper/OUNLZ56M"},"agent_actions":{"view_html":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2","download_json":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2.json","view_paper":"https://pith.science/paper/OUNLZ56M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2408.07335&json=true","fetch_graph":"https://pith.science/api/pith-number/OUNLZ56M2NCLC32DJTS3WCLSW2/graph.json","fetch_events":"https://pith.science/api/pith-number/OUNLZ56M2NCLC32DJTS3WCLSW2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2/action/storage_attestation","attest_author":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2/action/author_attestation","sign_citation":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2/action/citation_signature","submit_replication":"https://pith.science/pith/OUNLZ56M2NCLC32DJTS3WCLSW2/action/replication_record"}},"created_at":"2026-07-05T10:52:37.526508+00:00","updated_at":"2026-07-05T10:52:37.526508+00:00"}