{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:ONNKSYCDR2M2WWFY3QWHJUH2GS","short_pith_number":"pith:ONNKSYCD","schema_version":"1.0","canonical_sha256":"735aa960438e99ab58b8dc2c74d0fa3487bf03396a4149b5cf150e3c84db4777","source":{"kind":"arxiv","id":"1205.2018","version":1},"attestation_state":"computed","paper":{"title":"The Effect of High Column Density Systems on the Measurement of the Lyman \\alpha Forest Correlation Function","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andreu Font-Ribera, Jordi Miralda-Escud\\'e","submitted_at":"2012-05-09T16:07:54Z","abstract_excerpt":"We present a study of the effect of High Column Density (HCD) systems on the Lyman \\alpha forest correlation function on large scales. We study the effect both numerically, by inserting HCD systems on mock spectra for a specific model, and analytically, in the context of two-point correlations and linear theory. We show that the presence of HCDs substantially contributes to the noise of the correlation function measurement, and systematically alters the measured redshift-space correlation function of the Lyman \\alpha forest, increasing the value of the density bias factor and decreasing the re"},"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":"1205.2018","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-09T16:07:54Z","cross_cats_sorted":[],"title_canon_sha256":"0df748b9986e57156b264306207b382f9797727c262a132f213d559be8fc9d00","abstract_canon_sha256":"9776245659c9eb86cd721770aac65fdf9f63087068047435655efa5f297d2cb6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:36.022971Z","signature_b64":"DNIl9klZiHZnWvUQipw5p85tVevLe5jmOwx84icra0calfR3ZqE8CAC18FMKHVgFc3hjRwSyHU5IqSciee+8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"735aa960438e99ab58b8dc2c74d0fa3487bf03396a4149b5cf150e3c84db4777","last_reissued_at":"2026-05-18T01:57:36.022351Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:36.022351Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Effect of High Column Density Systems on the Measurement of the Lyman \\alpha Forest Correlation Function","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andreu Font-Ribera, Jordi Miralda-Escud\\'e","submitted_at":"2012-05-09T16:07:54Z","abstract_excerpt":"We present a study of the effect of High Column Density (HCD) systems on the Lyman \\alpha forest correlation function on large scales. We study the effect both numerically, by inserting HCD systems on mock spectra for a specific model, and analytically, in the context of two-point correlations and linear theory. We show that the presence of HCDs substantially contributes to the noise of the correlation function measurement, and systematically alters the measured redshift-space correlation function of the Lyman \\alpha forest, increasing the value of the density bias factor and decreasing the re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.2018","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":"1205.2018","created_at":"2026-05-18T01:57:36.022469+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.2018v1","created_at":"2026-05-18T01:57:36.022469+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.2018","created_at":"2026-05-18T01:57:36.022469+00:00"},{"alias_kind":"pith_short_12","alias_value":"ONNKSYCDR2M2","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_16","alias_value":"ONNKSYCDR2M2WWFY","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_8","alias_value":"ONNKSYCD","created_at":"2026-05-18T12:27:16.716162+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":4,"sample":[{"citing_arxiv_id":"2605.22489","citing_title":"Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\\alpha$ forest","ref_index":261,"is_internal_anchor":true},{"citing_arxiv_id":"2404.03001","citing_title":"DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest","ref_index":85,"is_internal_anchor":true},{"citing_arxiv_id":"2601.21432","citing_title":"Cosmological analysis of the DESI DR1 Lyman alpha 1D power spectrum","ref_index":110,"is_internal_anchor":true},{"citing_arxiv_id":"2503.14739","citing_title":"DESI DR2 Results I: Baryon Acoustic Oscillations from the Lyman Alpha Forest","ref_index":69,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS","json":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS.json","graph_json":"https://pith.science/api/pith-number/ONNKSYCDR2M2WWFY3QWHJUH2GS/graph.json","events_json":"https://pith.science/api/pith-number/ONNKSYCDR2M2WWFY3QWHJUH2GS/events.json","paper":"https://pith.science/paper/ONNKSYCD"},"agent_actions":{"view_html":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS","download_json":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS.json","view_paper":"https://pith.science/paper/ONNKSYCD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.2018&json=true","fetch_graph":"https://pith.science/api/pith-number/ONNKSYCDR2M2WWFY3QWHJUH2GS/graph.json","fetch_events":"https://pith.science/api/pith-number/ONNKSYCDR2M2WWFY3QWHJUH2GS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS/action/storage_attestation","attest_author":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS/action/author_attestation","sign_citation":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS/action/citation_signature","submit_replication":"https://pith.science/pith/ONNKSYCDR2M2WWFY3QWHJUH2GS/action/replication_record"}},"created_at":"2026-05-18T01:57:36.022469+00:00","updated_at":"2026-05-18T01:57:36.022469+00:00"}