{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:GJ7JU5PZTIFETIYHIWL35NJQLK","short_pith_number":"pith:GJ7JU5PZ","schema_version":"1.0","canonical_sha256":"327e9a75f99a0a49a3074597beb5305ab927fc7820cbd8340c47cd06e954a74a","source":{"kind":"arxiv","id":"2005.14396","version":1},"attestation_state":"computed","paper":{"title":"Using clinical trial registries to inform Copas selection model for publication bias in meta-analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Ao Huang, Satoshi Hattori, Sho Komukai, Tim Friede","submitted_at":"2020-05-29T05:35:37Z","abstract_excerpt":"Prospective registration of study protocols in clinical trial registries is a useful way to minimize the risk of publication bias in meta-analysis, and several clinical trial registries are available nowadays. However, they are mainly used as a tool for searching studies and information submitted to the registries has not been utilized as efficiently as it could. In addressing publication bias in meta-analyses, sensitivity analysis with the Copas selection model is a more objective alternative to widely-used graphical methods such as the funnel-plot and the trim-and-fill method. Despite its ab"},"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":"2005.14396","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2020-05-29T05:35:37Z","cross_cats_sorted":[],"title_canon_sha256":"efba2972715c3d1a896aadbbc6cbab0cb3f5c7c03f06969ab66ee414039de774","abstract_canon_sha256":"c59707f916037af74a5183b8407846f8ab8af21704064e004f95404fff7ac7cc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:06:36.676279Z","signature_b64":"dikSp5MG2eakceGfajIHaekV2zqWRoXFy1rZppQHSh4FpOe9KJ+zwPohi8B8eLGQhFREN25cjYraEG7tzb8dCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"327e9a75f99a0a49a3074597beb5305ab927fc7820cbd8340c47cd06e954a74a","last_reissued_at":"2026-07-05T01:06:36.675929Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:06:36.675929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Using clinical trial registries to inform Copas selection model for publication bias in meta-analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Ao Huang, Satoshi Hattori, Sho Komukai, Tim Friede","submitted_at":"2020-05-29T05:35:37Z","abstract_excerpt":"Prospective registration of study protocols in clinical trial registries is a useful way to minimize the risk of publication bias in meta-analysis, and several clinical trial registries are available nowadays. However, they are mainly used as a tool for searching studies and information submitted to the registries has not been utilized as efficiently as it could. In addressing publication bias in meta-analyses, sensitivity analysis with the Copas selection model is a more objective alternative to widely-used graphical methods such as the funnel-plot and the trim-and-fill method. Despite its ab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.14396","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.14396/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2005.14396","created_at":"2026-07-05T01:06:36.675995+00:00"},{"alias_kind":"arxiv_version","alias_value":"2005.14396v1","created_at":"2026-07-05T01:06:36.675995+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.14396","created_at":"2026-07-05T01:06:36.675995+00:00"},{"alias_kind":"pith_short_12","alias_value":"GJ7JU5PZTIFE","created_at":"2026-07-05T01:06:36.675995+00:00"},{"alias_kind":"pith_short_16","alias_value":"GJ7JU5PZTIFETIYH","created_at":"2026-07-05T01:06:36.675995+00:00"},{"alias_kind":"pith_short_8","alias_value":"GJ7JU5PZ","created_at":"2026-07-05T01:06:36.675995+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/GJ7JU5PZTIFETIYHIWL35NJQLK","json":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK.json","graph_json":"https://pith.science/api/pith-number/GJ7JU5PZTIFETIYHIWL35NJQLK/graph.json","events_json":"https://pith.science/api/pith-number/GJ7JU5PZTIFETIYHIWL35NJQLK/events.json","paper":"https://pith.science/paper/GJ7JU5PZ"},"agent_actions":{"view_html":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK","download_json":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK.json","view_paper":"https://pith.science/paper/GJ7JU5PZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2005.14396&json=true","fetch_graph":"https://pith.science/api/pith-number/GJ7JU5PZTIFETIYHIWL35NJQLK/graph.json","fetch_events":"https://pith.science/api/pith-number/GJ7JU5PZTIFETIYHIWL35NJQLK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK/action/storage_attestation","attest_author":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK/action/author_attestation","sign_citation":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK/action/citation_signature","submit_replication":"https://pith.science/pith/GJ7JU5PZTIFETIYHIWL35NJQLK/action/replication_record"}},"created_at":"2026-07-05T01:06:36.675995+00:00","updated_at":"2026-07-05T01:06:36.675995+00:00"}