{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2001:RWCPB3G4MLCWGMIV2SUNU2A6RS","short_pith_number":"pith:RWCPB3G4","schema_version":"1.0","canonical_sha256":"8d84f0ecdc62c5633115d4a8da681e8c80be67b50e2a0d8a444c71f8c3c1601c","source":{"kind":"arxiv","id":"astro-ph/0107451","version":1},"attestation_state":"computed","paper":{"title":"A small area faint KX redshift survey for QSOs in the ESO Imaging Survey Chandra Deep Field South","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) The Anglo-Australian Observatory, 3) ((1) Imperial College of Science, (3) Johns Hopkins University), K. Glazebrook (2, Medicine, Scott M. Croom (1, S. J. Warren (1), Technology","submitted_at":"2001-07-23T23:23:21Z","abstract_excerpt":"In this paper we present preliminary spectroscopic results from a small area faint K-excess (KX) survey, and compare KX selection against UVX selection. The aim of the KX method is to produce complete samples of QSOs flux-limited in the K band, in order to minimize any selection bias in samples of QSOs from the effects of reddening and extinction. Using the photometric catalogue of the ESO Imaging Survey Chandra Deep Field South (48 arcmin^2) we have identified compact objects with J-K colours redder than the stellar sequence, that are brighter than K=19.5. We have obtained spectra of 33 candi"},"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/0107451","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-07-23T23:23:21Z","cross_cats_sorted":[],"title_canon_sha256":"97e42aa9e6770e414dafd07b108dc17807a9cd0fddbebe55e5aff2c82f3eed36","abstract_canon_sha256":"10c932e4187fb84f977614742c82c49714c8720a39a784f859e95243e23be139"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:27:05.416142Z","signature_b64":"QL3IXuDgPXWXBFFeIxKlO74SPeOdhsI7x5iGDtMze4vAIereDWkbyyDcaqMlniUgeH4k5a1zR3RtovRe2SQgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d84f0ecdc62c5633115d4a8da681e8c80be67b50e2a0d8a444c71f8c3c1601c","last_reissued_at":"2026-05-18T04:27:05.415474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:27:05.415474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A small area faint KX redshift survey for QSOs in the ESO Imaging Survey Chandra Deep Field South","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) The Anglo-Australian Observatory, 3) ((1) Imperial College of Science, (3) Johns Hopkins University), K. Glazebrook (2, Medicine, Scott M. Croom (1, S. J. Warren (1), Technology","submitted_at":"2001-07-23T23:23:21Z","abstract_excerpt":"In this paper we present preliminary spectroscopic results from a small area faint K-excess (KX) survey, and compare KX selection against UVX selection. The aim of the KX method is to produce complete samples of QSOs flux-limited in the K band, in order to minimize any selection bias in samples of QSOs from the effects of reddening and extinction. Using the photometric catalogue of the ESO Imaging Survey Chandra Deep Field South (48 arcmin^2) we have identified compact objects with J-K colours redder than the stellar sequence, that are brighter than K=19.5. We have obtained spectra of 33 candi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0107451","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":"astro-ph/0107451","created_at":"2026-05-18T04:27:05.415595+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0107451v1","created_at":"2026-05-18T04:27:05.415595+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0107451","created_at":"2026-05-18T04:27:05.415595+00:00"},{"alias_kind":"pith_short_12","alias_value":"RWCPB3G4MLCW","created_at":"2026-05-18T12:25:50.845339+00:00"},{"alias_kind":"pith_short_16","alias_value":"RWCPB3G4MLCWGMIV","created_at":"2026-05-18T12:25:50.845339+00:00"},{"alias_kind":"pith_short_8","alias_value":"RWCPB3G4","created_at":"2026-05-18T12:25:50.845339+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/RWCPB3G4MLCWGMIV2SUNU2A6RS","json":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS.json","graph_json":"https://pith.science/api/pith-number/RWCPB3G4MLCWGMIV2SUNU2A6RS/graph.json","events_json":"https://pith.science/api/pith-number/RWCPB3G4MLCWGMIV2SUNU2A6RS/events.json","paper":"https://pith.science/paper/RWCPB3G4"},"agent_actions":{"view_html":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS","download_json":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS.json","view_paper":"https://pith.science/paper/RWCPB3G4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0107451&json=true","fetch_graph":"https://pith.science/api/pith-number/RWCPB3G4MLCWGMIV2SUNU2A6RS/graph.json","fetch_events":"https://pith.science/api/pith-number/RWCPB3G4MLCWGMIV2SUNU2A6RS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS/action/storage_attestation","attest_author":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS/action/author_attestation","sign_citation":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS/action/citation_signature","submit_replication":"https://pith.science/pith/RWCPB3G4MLCWGMIV2SUNU2A6RS/action/replication_record"}},"created_at":"2026-05-18T04:27:05.415595+00:00","updated_at":"2026-05-18T04:27:05.415595+00:00"}