{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:XFCUL73GAIULAF4SWFLTE3BJMU","short_pith_number":"pith:XFCUL73G","schema_version":"1.0","canonical_sha256":"b94545ff660228b01792b157326c29650254d801bf0b7e963ccfa2f53921e448","source":{"kind":"arxiv","id":"1110.6631","version":1},"attestation_state":"computed","paper":{"title":"New first trimester crown-rump length's equations optimized by structured data collection from a French general population","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Bernard Beno\\^it, Francis Vasseur, Marc Constant, Viet Chi Tran (LPP)","submitted_at":"2011-10-30T18:19:50Z","abstract_excerpt":"--- Objectives --- Prior to foetal karyotyping, the likelihood of Down's syndrome is often determined combining maternal age, serum free beta-HCG, PAPP-A levels and embryonic measurements of crown-rump length and nuchal translucency for gestational ages between 11 and 13 weeks. It appeared important to get a precise knowledge of these scan parameters' normal values during the first trimester. This paper focused on crown-rump length. --- METHODS --- 402 pregnancies from in-vitro fertilization allowing a precise estimation of foetal ages (FA) were used to determine the best model that describes "},"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":"1110.6631","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2011-10-30T18:19:50Z","cross_cats_sorted":[],"title_canon_sha256":"0894ecac170d11bf6ee451accb15c60dff6b81f0a47f12974f67c00e69d16b9a","abstract_canon_sha256":"08f6642c22051f43a6d83866589ebc31cafe1ddbe288b1a95aed267c24bdc959"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:33:50.217121Z","signature_b64":"NQQtyCqgrsSIMA7PFN5DO5cBwM3VFgZhf/RWaIrEu4VYv0di/B5cXbD1YZVVfSBnZaUPRYwtNUMaA5VwlHXSBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b94545ff660228b01792b157326c29650254d801bf0b7e963ccfa2f53921e448","last_reissued_at":"2026-05-18T03:33:50.216480Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:33:50.216480Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New first trimester crown-rump length's equations optimized by structured data collection from a French general population","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.AP","authors_text":"Bernard Beno\\^it, Francis Vasseur, Marc Constant, Viet Chi Tran (LPP)","submitted_at":"2011-10-30T18:19:50Z","abstract_excerpt":"--- Objectives --- Prior to foetal karyotyping, the likelihood of Down's syndrome is often determined combining maternal age, serum free beta-HCG, PAPP-A levels and embryonic measurements of crown-rump length and nuchal translucency for gestational ages between 11 and 13 weeks. It appeared important to get a precise knowledge of these scan parameters' normal values during the first trimester. This paper focused on crown-rump length. --- METHODS --- 402 pregnancies from in-vitro fertilization allowing a precise estimation of foetal ages (FA) were used to determine the best model that describes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.6631","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":"1110.6631","created_at":"2026-05-18T03:33:50.216571+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.6631v1","created_at":"2026-05-18T03:33:50.216571+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.6631","created_at":"2026-05-18T03:33:50.216571+00:00"},{"alias_kind":"pith_short_12","alias_value":"XFCUL73GAIUL","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"XFCUL73GAIULAF4S","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"XFCUL73G","created_at":"2026-05-18T12:26:44.992195+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/XFCUL73GAIULAF4SWFLTE3BJMU","json":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU.json","graph_json":"https://pith.science/api/pith-number/XFCUL73GAIULAF4SWFLTE3BJMU/graph.json","events_json":"https://pith.science/api/pith-number/XFCUL73GAIULAF4SWFLTE3BJMU/events.json","paper":"https://pith.science/paper/XFCUL73G"},"agent_actions":{"view_html":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU","download_json":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU.json","view_paper":"https://pith.science/paper/XFCUL73G","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.6631&json=true","fetch_graph":"https://pith.science/api/pith-number/XFCUL73GAIULAF4SWFLTE3BJMU/graph.json","fetch_events":"https://pith.science/api/pith-number/XFCUL73GAIULAF4SWFLTE3BJMU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU/action/storage_attestation","attest_author":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU/action/author_attestation","sign_citation":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU/action/citation_signature","submit_replication":"https://pith.science/pith/XFCUL73GAIULAF4SWFLTE3BJMU/action/replication_record"}},"created_at":"2026-05-18T03:33:50.216571+00:00","updated_at":"2026-05-18T03:33:50.216571+00:00"}