{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:3WDSHLAHS7WX6FU7AUL2H5EFPN","short_pith_number":"pith:3WDSHLAH","schema_version":"1.0","canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","source":{"kind":"arxiv","id":"1105.0586","version":1},"attestation_state":"computed","paper":{"title":"The Spitzer Extragalactic Representative Volume Survey (SERVS): The Environments of High-z SDSS Quasi-Stellar-Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cava, D. Farrah, D. G. Bonfield, E. Gonz\\'alez-Solares, J. Afonso, J. A. Stevens, J.-C. Mauduit, J. Surace, J. T. Falder, L. Marchetti, Matt J. Jarvis, M. Lacy, M. Vaccari, N. Seymour, S. Oliver","submitted_at":"2011-05-03T13:54:07Z","abstract_excerpt":"This paper presents a study of the environments of SDSS Quasi-Stellar-Objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied in large numbers with data of this depth before. We use the IRAC 3.6-4.5{\\mu}m colour of objects and ancillary r-band data to filter out as much foreground contamination as possible. This technique allows us to find a significant (> 4-{\\sigma}) over-density of galaxies around QSOs in a redshift bin centred on z ~ 2.0 and a (> 2-{\\sigma}) over-density of galaxies around QSOs"},"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":"1105.0586","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-03T13:54:07Z","cross_cats_sorted":[],"title_canon_sha256":"97b45c01f5afb121f2f6a37a5d29aef1727ec73dc47f20c473fa2510b9027088","abstract_canon_sha256":"4d770e85134e7bf725a2c97693a0a3416a3e35f501a97c9c36113936698d91fc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:09.637103Z","signature_b64":"s+Us0EFe9VAK2bM+YeSVfLkwDCrVlnuyzcN/6Dwa1TNwxUaCaQw9WY6Lz0kEm/6zaPyiK4qzgMqTe4hvxDFqAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd8723ac0797ed7f169f0517a3f4857b59b12579153a53cd7f7b707124e31eff","last_reissued_at":"2026-05-18T02:02:09.636406Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:09.636406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Spitzer Extragalactic Representative Volume Survey (SERVS): The Environments of High-z SDSS Quasi-Stellar-Objects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cava, D. Farrah, D. G. Bonfield, E. Gonz\\'alez-Solares, J. Afonso, J. A. Stevens, J.-C. Mauduit, J. Surace, J. T. Falder, L. Marchetti, Matt J. Jarvis, M. Lacy, M. Vaccari, N. Seymour, S. Oliver","submitted_at":"2011-05-03T13:54:07Z","abstract_excerpt":"This paper presents a study of the environments of SDSS Quasi-Stellar-Objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied in large numbers with data of this depth before. We use the IRAC 3.6-4.5{\\mu}m colour of objects and ancillary r-band data to filter out as much foreground contamination as possible. This technique allows us to find a significant (> 4-{\\sigma}) over-density of galaxies around QSOs in a redshift bin centred on z ~ 2.0 and a (> 2-{\\sigma}) over-density of galaxies around QSOs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0586","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":"1105.0586","created_at":"2026-05-18T02:02:09.636510+00:00"},{"alias_kind":"arxiv_version","alias_value":"1105.0586v1","created_at":"2026-05-18T02:02:09.636510+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0586","created_at":"2026-05-18T02:02:09.636510+00:00"},{"alias_kind":"pith_short_12","alias_value":"3WDSHLAHS7WX","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_16","alias_value":"3WDSHLAHS7WX6FU7","created_at":"2026-05-18T12:26:20.644004+00:00"},{"alias_kind":"pith_short_8","alias_value":"3WDSHLAH","created_at":"2026-05-18T12:26:20.644004+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/3WDSHLAHS7WX6FU7AUL2H5EFPN","json":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN.json","graph_json":"https://pith.science/api/pith-number/3WDSHLAHS7WX6FU7AUL2H5EFPN/graph.json","events_json":"https://pith.science/api/pith-number/3WDSHLAHS7WX6FU7AUL2H5EFPN/events.json","paper":"https://pith.science/paper/3WDSHLAH"},"agent_actions":{"view_html":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN","download_json":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN.json","view_paper":"https://pith.science/paper/3WDSHLAH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1105.0586&json=true","fetch_graph":"https://pith.science/api/pith-number/3WDSHLAHS7WX6FU7AUL2H5EFPN/graph.json","fetch_events":"https://pith.science/api/pith-number/3WDSHLAHS7WX6FU7AUL2H5EFPN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/action/storage_attestation","attest_author":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/action/author_attestation","sign_citation":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/action/citation_signature","submit_replication":"https://pith.science/pith/3WDSHLAHS7WX6FU7AUL2H5EFPN/action/replication_record"}},"created_at":"2026-05-18T02:02:09.636510+00:00","updated_at":"2026-05-18T02:02:09.636510+00:00"}