{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:6IU4RUE7R3UWKBE7GZI5SINP2B","short_pith_number":"pith:6IU4RUE7","schema_version":"1.0","canonical_sha256":"f229c8d09f8ee965049f3651d921afd0794cf0c20ddeab486c04730021a358b9","source":{"kind":"arxiv","id":"1501.04088","version":1},"attestation_state":"computed","paper":{"title":"Measuring baryon acoustic oscillations with future SKA surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alvise Raccanelli, Chris Blake, Dominik J. Schwarz, Mario G. Santos, Pedro G. Ferreira, Philip Bull, Stefano Camera","submitted_at":"2015-01-16T20:02:31Z","abstract_excerpt":"The imprint of baryon acoustic oscillations (BAO) in large-scale structure can be used as a standard ruler for mapping out the cosmic expansion history, and hence for testing cosmological models. In this article we briefly describe the scientific background to the BAO technique, and forecast the potential of the Phase 1 and 2 SKA telescopes to perform BAO surveys using both galaxy catalogues and intensity mapping, assessing their competitiveness with current and future optical galaxy surveys. We find that a 25,000 sq. deg. intensity mapping survey on a Phase 1 array will preferentially constra"},"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":"1501.04088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-01-16T20:02:31Z","cross_cats_sorted":[],"title_canon_sha256":"f01630c7b2fb921b14de14ebb946c8aeb28b215e5ec0a8e971747582ec4ba131","abstract_canon_sha256":"239f3d33c2f6dec79eaceb4d85b6278cae9b3ee7ca4bc0453275394650e63877"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:26.941153Z","signature_b64":"UYiNSs6huJYPvQyt/NeAMd/kYhIclG48iTRE7lzi3pQA3mt/L1PxWj62fdQOUvh2ZEkiFmpIlfC0mp8HFW/oBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f229c8d09f8ee965049f3651d921afd0794cf0c20ddeab486c04730021a358b9","last_reissued_at":"2026-05-18T01:58:26.940720Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:26.940720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measuring baryon acoustic oscillations with future SKA surveys","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alvise Raccanelli, Chris Blake, Dominik J. Schwarz, Mario G. Santos, Pedro G. Ferreira, Philip Bull, Stefano Camera","submitted_at":"2015-01-16T20:02:31Z","abstract_excerpt":"The imprint of baryon acoustic oscillations (BAO) in large-scale structure can be used as a standard ruler for mapping out the cosmic expansion history, and hence for testing cosmological models. In this article we briefly describe the scientific background to the BAO technique, and forecast the potential of the Phase 1 and 2 SKA telescopes to perform BAO surveys using both galaxy catalogues and intensity mapping, assessing their competitiveness with current and future optical galaxy surveys. We find that a 25,000 sq. deg. intensity mapping survey on a Phase 1 array will preferentially constra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.04088","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":"1501.04088","created_at":"2026-05-18T01:58:26.940787+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.04088v1","created_at":"2026-05-18T01:58:26.940787+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.04088","created_at":"2026-05-18T01:58:26.940787+00:00"},{"alias_kind":"pith_short_12","alias_value":"6IU4RUE7R3UW","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"6IU4RUE7R3UWKBE7","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"6IU4RUE7","created_at":"2026-05-18T12:29:07.941421+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/6IU4RUE7R3UWKBE7GZI5SINP2B","json":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B.json","graph_json":"https://pith.science/api/pith-number/6IU4RUE7R3UWKBE7GZI5SINP2B/graph.json","events_json":"https://pith.science/api/pith-number/6IU4RUE7R3UWKBE7GZI5SINP2B/events.json","paper":"https://pith.science/paper/6IU4RUE7"},"agent_actions":{"view_html":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B","download_json":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B.json","view_paper":"https://pith.science/paper/6IU4RUE7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.04088&json=true","fetch_graph":"https://pith.science/api/pith-number/6IU4RUE7R3UWKBE7GZI5SINP2B/graph.json","fetch_events":"https://pith.science/api/pith-number/6IU4RUE7R3UWKBE7GZI5SINP2B/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B/action/storage_attestation","attest_author":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B/action/author_attestation","sign_citation":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B/action/citation_signature","submit_replication":"https://pith.science/pith/6IU4RUE7R3UWKBE7GZI5SINP2B/action/replication_record"}},"created_at":"2026-05-18T01:58:26.940787+00:00","updated_at":"2026-05-18T01:58:26.940787+00:00"}