{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:XXK34FJXZTOXLS6YSWSJNZHOTN","short_pith_number":"pith:XXK34FJX","schema_version":"1.0","canonical_sha256":"bdd5be1537ccdd75cbd895a496e4ee9b4c535e324a6bd4835ac8471cea5edb71","source":{"kind":"arxiv","id":"2408.00402","version":1},"attestation_state":"computed","paper":{"title":"Changing-look Active Galactic Nuclei from the Dark Energy Spectroscopic Instrument. II. Statistical Properties from the First Data Release","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron Meisner, Andreu Font-Ribera, Axel de la Macorra, Benjamin Alan Weaver, Claire L. Greenwell, David Brooks, David M. Alexander, David Sprayberry, Enrique Gaztanaga, Eusebio Sanchez, Francisco Prada, Gaston Gutierrez, Graziano Rossi, Gregory Tarle, Hu Zou, Jessica Nicole Aguilar, Jipeng Sui, John Moustakas, Kyle Dawson, Laurent Le Guillou, Malgorzata Siudek, Marc Manera, Martin Landriau, Michael Schubnell, Peter Doel, Ramon Mique, Robert Kehoe, Satya Gontcho A Gontcho, Siwei Zou, Steven Ahlen, Theodore Kisner, Todd Claybaugh, Victoria A. Fawcett, Wei-Jian Guo, Yun-Ao Xiao, Zhiwei Pan","submitted_at":"2024-08-01T09:14:37Z","abstract_excerpt":"We present the identification of changing-look active galactic nuclei (CL-AGNs) from the Dark Energy Spectroscopic Instrument First Data Release and Sloan Digital Sky Survey Data Release 16 at z \\leq 0.9. To confirm the CL-AGNs, we utilize spectral flux calibration assessment via an [O\\,{\\sc iii}]-based calibration, pseudo-photometry examination, and visual inspection. This rigorous selection process allows us to compile a statistical catalog of 561 CL-AGNs, encompassing 527 $\\rm H\\beta$, 149$\\rm H\\alpha$, and 129 Mg II CL behaviors. In this sample, we find 1) a 283:278 ratio of turn-on to tur"},"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":"2408.00402","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-01T09:14:37Z","cross_cats_sorted":[],"title_canon_sha256":"6e68c24d18aabce4fec4cfd4c72a1360a06dc59867c7c6e55c532f1329e4a7b0","abstract_canon_sha256":"918b54fee2b5897737584c91b922744bfa310d72ea6fa14187df6f5071ccdc9d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:51:03.242170Z","signature_b64":"d42xusmJLuWggXNO2XWhy0TyvlNHT46mXriUUL5TeZv312JuhRNOsguvLhDHH8NAbNotWFe5Ql9tlkPMu3BzCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bdd5be1537ccdd75cbd895a496e4ee9b4c535e324a6bd4835ac8471cea5edb71","last_reissued_at":"2026-07-05T08:51:03.241730Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:51:03.241730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Changing-look Active Galactic Nuclei from the Dark Energy Spectroscopic Instrument. II. Statistical Properties from the First Data Release","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron Meisner, Andreu Font-Ribera, Axel de la Macorra, Benjamin Alan Weaver, Claire L. Greenwell, David Brooks, David M. Alexander, David Sprayberry, Enrique Gaztanaga, Eusebio Sanchez, Francisco Prada, Gaston Gutierrez, Graziano Rossi, Gregory Tarle, Hu Zou, Jessica Nicole Aguilar, Jipeng Sui, John Moustakas, Kyle Dawson, Laurent Le Guillou, Malgorzata Siudek, Marc Manera, Martin Landriau, Michael Schubnell, Peter Doel, Ramon Mique, Robert Kehoe, Satya Gontcho A Gontcho, Siwei Zou, Steven Ahlen, Theodore Kisner, Todd Claybaugh, Victoria A. Fawcett, Wei-Jian Guo, Yun-Ao Xiao, Zhiwei Pan","submitted_at":"2024-08-01T09:14:37Z","abstract_excerpt":"We present the identification of changing-look active galactic nuclei (CL-AGNs) from the Dark Energy Spectroscopic Instrument First Data Release and Sloan Digital Sky Survey Data Release 16 at z \\leq 0.9. To confirm the CL-AGNs, we utilize spectral flux calibration assessment via an [O\\,{\\sc iii}]-based calibration, pseudo-photometry examination, and visual inspection. This rigorous selection process allows us to compile a statistical catalog of 561 CL-AGNs, encompassing 527 $\\rm H\\beta$, 149$\\rm H\\alpha$, and 129 Mg II CL behaviors. In this sample, we find 1) a 283:278 ratio of turn-on to tur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.00402","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/2408.00402/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":"2408.00402","created_at":"2026-07-05T08:51:03.241787+00:00"},{"alias_kind":"arxiv_version","alias_value":"2408.00402v1","created_at":"2026-07-05T08:51:03.241787+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.00402","created_at":"2026-07-05T08:51:03.241787+00:00"},{"alias_kind":"pith_short_12","alias_value":"XXK34FJXZTOX","created_at":"2026-07-05T08:51:03.241787+00:00"},{"alias_kind":"pith_short_16","alias_value":"XXK34FJXZTOXLS6Y","created_at":"2026-07-05T08:51:03.241787+00:00"},{"alias_kind":"pith_short_8","alias_value":"XXK34FJX","created_at":"2026-07-05T08:51:03.241787+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.27675","citing_title":"OzSSy1: The Australian Southern Seyfert-1 Spectroscopic Atlas and Catalogue at z < 0.1","ref_index":31,"is_internal_anchor":false},{"citing_arxiv_id":"2605.03577","citing_title":"Optical Variability Structure Function of Low-Luminosity AGN using ATLAS Lightcurves","ref_index":30,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN","json":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN.json","graph_json":"https://pith.science/api/pith-number/XXK34FJXZTOXLS6YSWSJNZHOTN/graph.json","events_json":"https://pith.science/api/pith-number/XXK34FJXZTOXLS6YSWSJNZHOTN/events.json","paper":"https://pith.science/paper/XXK34FJX"},"agent_actions":{"view_html":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN","download_json":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN.json","view_paper":"https://pith.science/paper/XXK34FJX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2408.00402&json=true","fetch_graph":"https://pith.science/api/pith-number/XXK34FJXZTOXLS6YSWSJNZHOTN/graph.json","fetch_events":"https://pith.science/api/pith-number/XXK34FJXZTOXLS6YSWSJNZHOTN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN/action/storage_attestation","attest_author":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN/action/author_attestation","sign_citation":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN/action/citation_signature","submit_replication":"https://pith.science/pith/XXK34FJXZTOXLS6YSWSJNZHOTN/action/replication_record"}},"created_at":"2026-07-05T08:51:03.241787+00:00","updated_at":"2026-07-05T08:51:03.241787+00:00"}