{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:CXIIZRNUGQLY4GOKKAWYSRGX7R","short_pith_number":"pith:CXIIZRNU","schema_version":"1.0","canonical_sha256":"15d08cc5b434178e19ca502d8944d7fc50cab11786eb63708d80cb476128e87e","source":{"kind":"arxiv","id":"astro-ph/0310336","version":1},"attestation_state":"computed","paper":{"title":"The Ensemble Photometric Variability of ~25000 Quasars in the Sloan Digital Sky Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. C. Wilhite, D. E. Vanden Berk, D. G. York, D. J. Schlegel, D. P. Schneider, D. Q. Lamb, G. T. Richards, J. V. Brinkmann, P. B. Hall, R. C. Nichol, R. G. Kron, R. J. Brunner, S. F. Anderson, Z. Ivezic","submitted_at":"2003-10-13T20:08:29Z","abstract_excerpt":"Using a sample of over 25000 spectroscopically confirmed quasars from the Sloan Digital Sky Survey, we show how quasar variability in the rest frame optical/UV regime depends upon rest frame time lag, luminosity, rest wavelength, redshift, the presence of radio and X-ray emission, and the presence of broad absorption line systems. The time dependence of variability (the structure function) is well-fit by a single power law on timescales from days to years. There is an anti-correlation of variability amplitude with rest wavelength, and quasars are systematically bluer when brighter at all redsh"},"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":"astro-ph/0310336","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-10-13T20:08:29Z","cross_cats_sorted":[],"title_canon_sha256":"afa13bf86c087f95636c06bcab0e9eee0da8839127cbc6030174ed9e5bc93358","abstract_canon_sha256":"fa218fee2aec51063db10b6155a6a03dd78cfbcf5c0e92d0341487b9ae8b365b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:23:00.394838Z","signature_b64":"N9vk1EApcQylOpcPb3IIgR11oNdcbjUI+NPlyQj23bLYyimVCvHQLDyQ28UiO7BScZ0bKs/Qqs1rVYxJFU81Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15d08cc5b434178e19ca502d8944d7fc50cab11786eb63708d80cb476128e87e","last_reissued_at":"2026-07-04T15:23:00.394479Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:23:00.394479Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Ensemble Photometric Variability of ~25000 Quasars in the Sloan Digital Sky Survey","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. C. Wilhite, D. E. Vanden Berk, D. G. York, D. J. Schlegel, D. P. Schneider, D. Q. Lamb, G. T. Richards, J. V. Brinkmann, P. B. Hall, R. C. Nichol, R. G. Kron, R. J. Brunner, S. F. Anderson, Z. Ivezic","submitted_at":"2003-10-13T20:08:29Z","abstract_excerpt":"Using a sample of over 25000 spectroscopically confirmed quasars from the Sloan Digital Sky Survey, we show how quasar variability in the rest frame optical/UV regime depends upon rest frame time lag, luminosity, rest wavelength, redshift, the presence of radio and X-ray emission, and the presence of broad absorption line systems. The time dependence of variability (the structure function) is well-fit by a single power law on timescales from days to years. There is an anti-correlation of variability amplitude with rest wavelength, and quasars are systematically bluer when brighter at all redsh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0310336","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/astro-ph/0310336/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":"astro-ph/0310336","created_at":"2026-07-04T15:23:00.394559+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0310336v1","created_at":"2026-07-04T15:23:00.394559+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0310336","created_at":"2026-07-04T15:23:00.394559+00:00"},{"alias_kind":"pith_short_12","alias_value":"CXIIZRNUGQLY","created_at":"2026-07-04T15:23:00.394559+00:00"},{"alias_kind":"pith_short_16","alias_value":"CXIIZRNUGQLY4GOK","created_at":"2026-07-04T15:23:00.394559+00:00"},{"alias_kind":"pith_short_8","alias_value":"CXIIZRNU","created_at":"2026-07-04T15:23:00.394559+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":3,"sample":[{"citing_arxiv_id":"2606.28501","citing_title":"A hierarchical Bayesian framework for cosmology using Type 1 AGN variability","ref_index":25,"is_internal_anchor":true},{"citing_arxiv_id":"2606.27675","citing_title":"OzSSy1: The Australian Southern Seyfert-1 Spectroscopic Atlas and Catalogue at z < 0.1","ref_index":40,"is_internal_anchor":true},{"citing_arxiv_id":"2606.06578","citing_title":"A Disappearing Act: Constraints From \"Missing\" Flares of Repeating Partial TDE Candidates","ref_index":264,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R","json":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R.json","graph_json":"https://pith.science/api/pith-number/CXIIZRNUGQLY4GOKKAWYSRGX7R/graph.json","events_json":"https://pith.science/api/pith-number/CXIIZRNUGQLY4GOKKAWYSRGX7R/events.json","paper":"https://pith.science/paper/CXIIZRNU"},"agent_actions":{"view_html":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R","download_json":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R.json","view_paper":"https://pith.science/paper/CXIIZRNU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0310336&json=true","fetch_graph":"https://pith.science/api/pith-number/CXIIZRNUGQLY4GOKKAWYSRGX7R/graph.json","fetch_events":"https://pith.science/api/pith-number/CXIIZRNUGQLY4GOKKAWYSRGX7R/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R/action/storage_attestation","attest_author":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R/action/author_attestation","sign_citation":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R/action/citation_signature","submit_replication":"https://pith.science/pith/CXIIZRNUGQLY4GOKKAWYSRGX7R/action/replication_record"}},"created_at":"2026-07-04T15:23:00.394559+00:00","updated_at":"2026-07-04T15:23:00.394559+00:00"}