{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:OAXD636XL5CZRBTBKLL5E4RUT2","short_pith_number":"pith:OAXD636X","schema_version":"1.0","canonical_sha256":"702e3f6fd75f4598866152d7d272349ebaca394ee22c63a56c98c6987bd806e9","source":{"kind":"arxiv","id":"1808.10695","version":2},"attestation_state":"computed","paper":{"title":"A first model-independent radial BAO constraint from the final BOSS sample","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Eddy G. Chirinos Isidro, Valerio Marra","submitted_at":"2018-08-31T11:54:09Z","abstract_excerpt":"Using almost one million galaxies from the final Data Release 12 of the SDSS's Baryon Oscillation Spectroscopic Survey, we have obtained, albeit with low significance, a first model-independent determination of the radial BAO peak with 9% error: $\\Delta z_{\\rm BAO}(z_{\\rm eff}=0.51)= 0.0456 \\pm 0.0042$. In order to obtain this measurement, the radial correlation function was computed in 7,700 angular pixels, from which mean correlation function and covariance matrix were obtained, making the analysis completely model independent. This novel method of obtaining the covariance matrix was validat"},"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":"1808.10695","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-08-31T11:54:09Z","cross_cats_sorted":[],"title_canon_sha256":"1014d7a1ac079652462dccaf096222e2d1654fba9b21abdc4234bcd37f9b0f2f","abstract_canon_sha256":"7c3c07ab8cbde0e7f8529b081740849de3dad69dab2e3c3e240a6ad81b8211dc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:58.863896Z","signature_b64":"sLnUnEFDD7PWG/xa1N31wBXlrUJ7eBi10v3giPm6qh91rMgSCfE8qoSaVYzFEgZximv91zkm/YGaREHWE/ijAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"702e3f6fd75f4598866152d7d272349ebaca394ee22c63a56c98c6987bd806e9","last_reissued_at":"2026-05-17T23:42:58.863370Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:58.863370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A first model-independent radial BAO constraint from the final BOSS sample","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Eddy G. Chirinos Isidro, Valerio Marra","submitted_at":"2018-08-31T11:54:09Z","abstract_excerpt":"Using almost one million galaxies from the final Data Release 12 of the SDSS's Baryon Oscillation Spectroscopic Survey, we have obtained, albeit with low significance, a first model-independent determination of the radial BAO peak with 9% error: $\\Delta z_{\\rm BAO}(z_{\\rm eff}=0.51)= 0.0456 \\pm 0.0042$. In order to obtain this measurement, the radial correlation function was computed in 7,700 angular pixels, from which mean correlation function and covariance matrix were obtained, making the analysis completely model independent. This novel method of obtaining the covariance matrix was validat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.10695","kind":"arxiv","version":2},"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":"1808.10695","created_at":"2026-05-17T23:42:58.863445+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.10695v2","created_at":"2026-05-17T23:42:58.863445+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.10695","created_at":"2026-05-17T23:42:58.863445+00:00"},{"alias_kind":"pith_short_12","alias_value":"OAXD636XL5CZ","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_16","alias_value":"OAXD636XL5CZRBTB","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_8","alias_value":"OAXD636X","created_at":"2026-05-18T12:32:43.782077+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/OAXD636XL5CZRBTBKLL5E4RUT2","json":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2.json","graph_json":"https://pith.science/api/pith-number/OAXD636XL5CZRBTBKLL5E4RUT2/graph.json","events_json":"https://pith.science/api/pith-number/OAXD636XL5CZRBTBKLL5E4RUT2/events.json","paper":"https://pith.science/paper/OAXD636X"},"agent_actions":{"view_html":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2","download_json":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2.json","view_paper":"https://pith.science/paper/OAXD636X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.10695&json=true","fetch_graph":"https://pith.science/api/pith-number/OAXD636XL5CZRBTBKLL5E4RUT2/graph.json","fetch_events":"https://pith.science/api/pith-number/OAXD636XL5CZRBTBKLL5E4RUT2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2/action/storage_attestation","attest_author":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2/action/author_attestation","sign_citation":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2/action/citation_signature","submit_replication":"https://pith.science/pith/OAXD636XL5CZRBTBKLL5E4RUT2/action/replication_record"}},"created_at":"2026-05-17T23:42:58.863445+00:00","updated_at":"2026-05-17T23:42:58.863445+00:00"}