{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:SN4WRM54OKJ225WGSFEKWDITLS","short_pith_number":"pith:SN4WRM54","schema_version":"1.0","canonical_sha256":"937968b3bc7293ad76c69148ab0d135cb0ec42fa9403a727702b5a6ad51d291e","source":{"kind":"arxiv","id":"1308.0600","version":1},"attestation_state":"computed","paper":{"title":"An investigation of the line of sight towards QSO PKS 0237-233","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Ajabshirizadeh, C. Ledoux, H. Fathivavsari, H. Rahmani, P. Noterdaeme, P. Petitjean, R. Srianand","submitted_at":"2013-08-02T20:00:04Z","abstract_excerpt":"We present a detailed analysis of absorption systems along the line of sight towards QSO PKS 0237-233 using a high resolution spectrum of signal-to-noise ratio (SNR) ~ 60-80 obtained with the Ultraviolet and Visual Echelle Spectrograph mounted on the Very Large Telescope. This line of sight is known to show a remarkable overdensity of CIV systems that has been interpreted as revealing the presence of a supercluster of galaxies. A detailed analysis of each of these absorption systems is presented. In particular, for the z_abs = 1.6359 (with two components of logN(HI) = 18.45, 19.05) and z_abs ="},"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":"1308.0600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-02T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"857c51ed1d7b9b0815dc5a413fdc416b20682801f3ed206ae37a9692610087ea","abstract_canon_sha256":"72ebaecd7a027eb1f511fbcdd5feb1522b1d215422dc95ec3bbd04e6bed5e881"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:24.441671Z","signature_b64":"E5+tfzR8s0YimP831ObS/lOEBMsHCRVp2cGS5DxLvnf8T784szgYcmnIcvDxtZjEvbEzDs+kI3rkAkysOFx8Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"937968b3bc7293ad76c69148ab0d135cb0ec42fa9403a727702b5a6ad51d291e","last_reissued_at":"2026-05-18T01:48:24.441003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:24.441003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An investigation of the line of sight towards QSO PKS 0237-233","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Ajabshirizadeh, C. Ledoux, H. Fathivavsari, H. Rahmani, P. Noterdaeme, P. Petitjean, R. Srianand","submitted_at":"2013-08-02T20:00:04Z","abstract_excerpt":"We present a detailed analysis of absorption systems along the line of sight towards QSO PKS 0237-233 using a high resolution spectrum of signal-to-noise ratio (SNR) ~ 60-80 obtained with the Ultraviolet and Visual Echelle Spectrograph mounted on the Very Large Telescope. This line of sight is known to show a remarkable overdensity of CIV systems that has been interpreted as revealing the presence of a supercluster of galaxies. A detailed analysis of each of these absorption systems is presented. In particular, for the z_abs = 1.6359 (with two components of logN(HI) = 18.45, 19.05) and z_abs ="},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0600","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":"1308.0600","created_at":"2026-05-18T01:48:24.441093+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.0600v1","created_at":"2026-05-18T01:48:24.441093+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0600","created_at":"2026-05-18T01:48:24.441093+00:00"},{"alias_kind":"pith_short_12","alias_value":"SN4WRM54OKJ2","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_16","alias_value":"SN4WRM54OKJ225WG","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_8","alias_value":"SN4WRM54","created_at":"2026-05-18T12:27:59.945178+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/SN4WRM54OKJ225WGSFEKWDITLS","json":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS.json","graph_json":"https://pith.science/api/pith-number/SN4WRM54OKJ225WGSFEKWDITLS/graph.json","events_json":"https://pith.science/api/pith-number/SN4WRM54OKJ225WGSFEKWDITLS/events.json","paper":"https://pith.science/paper/SN4WRM54"},"agent_actions":{"view_html":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS","download_json":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS.json","view_paper":"https://pith.science/paper/SN4WRM54","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.0600&json=true","fetch_graph":"https://pith.science/api/pith-number/SN4WRM54OKJ225WGSFEKWDITLS/graph.json","fetch_events":"https://pith.science/api/pith-number/SN4WRM54OKJ225WGSFEKWDITLS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS/action/storage_attestation","attest_author":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS/action/author_attestation","sign_citation":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS/action/citation_signature","submit_replication":"https://pith.science/pith/SN4WRM54OKJ225WGSFEKWDITLS/action/replication_record"}},"created_at":"2026-05-18T01:48:24.441093+00:00","updated_at":"2026-05-18T01:48:24.441093+00:00"}