{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:OODF4Q54CNQG2XHAIKGRVNO47M","short_pith_number":"pith:OODF4Q54","schema_version":"1.0","canonical_sha256":"73865e43bc13606d5ce0428d1ab5dcfb240992568d189ea4ce0789aa2b972149","source":{"kind":"arxiv","id":"0905.4126","version":1},"attestation_state":"computed","paper":{"title":"A Survey of z~6 Quasars in the SDSS Deep Stripe. II. Discovery of Six Quasars at z_{AB}>21","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Donald P. Schneider, Elena Malanushenko, Fuyan Bian, Gordon T. Richards, Huan Lin, James Annis, Kuenley Chiu, Linhua Jiang, Michael A. Strauss, Robert H. Lupton, Sebastian Jester, Viktor Malanushenko, Xiaohui Fan","submitted_at":"2009-05-26T07:05:46Z","abstract_excerpt":"We present the discovery of six new quasars at z~6 selected from the Sloan Digital Sky Survey (SDSS) southern survey, a deep imaging survey obtained by repeatedly scanning a stripe along the celestial equator. The six quasars are about two magnitudes fainter than the luminous z~6 quasars found in the SDSS main survey and one magnitude fainter than the quasars reported in Paper I (Jiang et al. 2008). Four of them comprise a complete flux-limited sample at 21<z_AB<21.8 over an effective area of 195 deg^2. The other two quasars are fainter than z_AB=22 and are not part of the complete sample. The"},"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":"0905.4126","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-05-26T07:05:46Z","cross_cats_sorted":[],"title_canon_sha256":"ad8fb5647a367baec16172e5cd8e4643ae2bb572770adbc2196dcc7262972b3f","abstract_canon_sha256":"f371dab023b7e5bef24ead8d6455f581ae6433071c38588f94d6128e14d5cbb9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:37.603063Z","signature_b64":"87Pk3Ly6FoLZxKJw7s6YdLX+LOXlv/NdLiskoxpe8CpPgPppYy4paiJSHMuEnk2ohy1bLDaOY5UuEtPUCdAoAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"73865e43bc13606d5ce0428d1ab5dcfb240992568d189ea4ce0789aa2b972149","last_reissued_at":"2026-05-18T02:13:37.602477Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:37.602477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Survey of z~6 Quasars in the SDSS Deep Stripe. II. Discovery of Six Quasars at z_{AB}>21","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Donald P. Schneider, Elena Malanushenko, Fuyan Bian, Gordon T. Richards, Huan Lin, James Annis, Kuenley Chiu, Linhua Jiang, Michael A. Strauss, Robert H. Lupton, Sebastian Jester, Viktor Malanushenko, Xiaohui Fan","submitted_at":"2009-05-26T07:05:46Z","abstract_excerpt":"We present the discovery of six new quasars at z~6 selected from the Sloan Digital Sky Survey (SDSS) southern survey, a deep imaging survey obtained by repeatedly scanning a stripe along the celestial equator. The six quasars are about two magnitudes fainter than the luminous z~6 quasars found in the SDSS main survey and one magnitude fainter than the quasars reported in Paper I (Jiang et al. 2008). Four of them comprise a complete flux-limited sample at 21<z_AB<21.8 over an effective area of 195 deg^2. The other two quasars are fainter than z_AB=22 and are not part of the complete sample. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.4126","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":""},"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":"0905.4126","created_at":"2026-05-18T02:13:37.602561+00:00"},{"alias_kind":"arxiv_version","alias_value":"0905.4126v1","created_at":"2026-05-18T02:13:37.602561+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.4126","created_at":"2026-05-18T02:13:37.602561+00:00"},{"alias_kind":"pith_short_12","alias_value":"OODF4Q54CNQG","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"OODF4Q54CNQG2XHA","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"OODF4Q54","created_at":"2026-05-18T12:26:01.383474+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/OODF4Q54CNQG2XHAIKGRVNO47M","json":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M.json","graph_json":"https://pith.science/api/pith-number/OODF4Q54CNQG2XHAIKGRVNO47M/graph.json","events_json":"https://pith.science/api/pith-number/OODF4Q54CNQG2XHAIKGRVNO47M/events.json","paper":"https://pith.science/paper/OODF4Q54"},"agent_actions":{"view_html":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M","download_json":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M.json","view_paper":"https://pith.science/paper/OODF4Q54","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0905.4126&json=true","fetch_graph":"https://pith.science/api/pith-number/OODF4Q54CNQG2XHAIKGRVNO47M/graph.json","fetch_events":"https://pith.science/api/pith-number/OODF4Q54CNQG2XHAIKGRVNO47M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M/action/storage_attestation","attest_author":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M/action/author_attestation","sign_citation":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M/action/citation_signature","submit_replication":"https://pith.science/pith/OODF4Q54CNQG2XHAIKGRVNO47M/action/replication_record"}},"created_at":"2026-05-18T02:13:37.602561+00:00","updated_at":"2026-05-18T02:13:37.602561+00:00"}