{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:J7LF6DMW545SDOXRA4PW6OMVRE","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"38f54b1aa6d84e40766d58bc7beee42ae6db4cb962098f9441ab5ce5819fd044","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-09-16T06:44:18Z","title_canon_sha256":"542232d30ad4288bed6bd3a43905244309ef54a4d7a44f43a7170ffa3d80e529"},"schema_version":"1.0","source":{"id":"1509.04824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04824","created_at":"2026-05-18T01:32:51Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04824v1","created_at":"2026-05-18T01:32:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04824","created_at":"2026-05-18T01:32:51Z"},{"alias_kind":"pith_short_12","alias_value":"J7LF6DMW545S","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"J7LF6DMW545SDOXR","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"J7LF6DMW","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:e001131358a4d3d8e7ecd57fed89c8208964b4319df625b308863ca5899d9938","target":"graph","created_at":"2026-05-18T01:32:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Substudies of the Childhood Asthma Management Program [Control. Clin. Trials 20 (1999) 91-120; N. Engl. J. Med. 343 (2000) 1054-1063] seek to identify patient characteristics associated with asthma symptoms and lung function. To determine if genetic measures are associated with trajectories of lung function as measured by forced vital capacity (FVC), children in the primary cohort study retrospectively had candidate loci evaluated. Given participant burden and constraints on financial resources, it is often desirable to target a subsample for ascertainment of costly measures. Methods that can ","authors_text":"Jonathan S. Schildcrout, Leila R. Zelnick, Patrick J. Heagerty, Paul J. Rathouz, Shawn P. Garbett","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-09-16T06:44:18Z","title":"Biased sampling designs to improve research efficiency: Factors influencing pulmonary function over time in children with asthma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04824","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f10bf7fdbfa23213751117801253dcf4832e5d435884692f4f95828e9b7388e2","target":"record","created_at":"2026-05-18T01:32:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"38f54b1aa6d84e40766d58bc7beee42ae6db4cb962098f9441ab5ce5819fd044","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-09-16T06:44:18Z","title_canon_sha256":"542232d30ad4288bed6bd3a43905244309ef54a4d7a44f43a7170ffa3d80e529"},"schema_version":"1.0","source":{"id":"1509.04824","kind":"arxiv","version":1}},"canonical_sha256":"4fd65f0d96ef3b21baf1071f6f3995890fbb4d30b34adab88aa1eddfedd1876b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fd65f0d96ef3b21baf1071f6f3995890fbb4d30b34adab88aa1eddfedd1876b","first_computed_at":"2026-05-18T01:32:51.610207Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:51.610207Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MamOp9MMyLuCQ/AwmPfRCCI6fY+oj/D+9zzfn67/g6s7ypb1BdAjZLxWLxIrUPclJzzIXTmIY/B5qc26EylQAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:51.610849Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.04824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f10bf7fdbfa23213751117801253dcf4832e5d435884692f4f95828e9b7388e2","sha256:e001131358a4d3d8e7ecd57fed89c8208964b4319df625b308863ca5899d9938"],"state_sha256":"cc2b19e73d24bf60d0d9704f6958a8f3957cfcc0c935e920d3ca54551a3c9ec5"}