{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JBPGW76X5NU55K3KVO33H7X6SS","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":"938c699b23690d94f2b58edc7149dfda6897f6f0a43b29030f2bbff92a57fa56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2019-01-28T13:10:09Z","title_canon_sha256":"c2c865a252d79a6ff70d52a14dd96f99f8f70ccdd08e4de856df49ab30bbb8d4"},"schema_version":"1.0","source":{"id":"1901.09634","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.09634","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"arxiv_version","alias_value":"1901.09634v1","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09634","created_at":"2026-05-17T23:55:24Z"},{"alias_kind":"pith_short_12","alias_value":"JBPGW76X5NU5","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"JBPGW76X5NU55K3K","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"JBPGW76X","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:9e1abf3725a78bedba69467c42de4e68fdfb5aa6223cc0946c6f43738898ee0f","target":"graph","created_at":"2026-05-17T23:55:24Z","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":"We develop flexible multi-parameter regression survival models for interval censored survival data arising in longitudinal prospective studies and longitudinal randomised controlled clinical trials. A multi-parameter Weibull regression survival model, which is wholly parametric, and has non-proportional hazards, is the main focus of the paper. We describe the basic model, develop the interval-censored likelihood and extend the model to include gamma frailty and a dispersion model. We evaluate the models by means of a simulation study and a detailed re-analysis of data from the Signal Tandmobie","authors_text":"Defen Peng, Gilbert MacKenzie, Kevin Burke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2019-01-28T13:10:09Z","title":"A Multi-parameter regression model for interval censored survival data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09634","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":"sha256:7431b20b4aa46be17d645c2411b23635e10381f7989216c8ba3de03dad2d3d25","target":"record","created_at":"2026-05-17T23:55:24Z","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":"938c699b23690d94f2b58edc7149dfda6897f6f0a43b29030f2bbff92a57fa56","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2019-01-28T13:10:09Z","title_canon_sha256":"c2c865a252d79a6ff70d52a14dd96f99f8f70ccdd08e4de856df49ab30bbb8d4"},"schema_version":"1.0","source":{"id":"1901.09634","kind":"arxiv","version":1}},"canonical_sha256":"485e6b7fd7eb69deab6aabb7b3fefe948011a7b54c41494b24f0419b3876d6b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"485e6b7fd7eb69deab6aabb7b3fefe948011a7b54c41494b24f0419b3876d6b7","first_computed_at":"2026-05-17T23:55:24.249759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:24.249759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eEw2wmdELk3Nmg/X7BTcp23LKiatO6ST+ysaBchNBFANVlHrsvNwk3L/2Le1AvB9I5xy4e0v3YP4wQ1xFKNxCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:24.250292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.09634","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7431b20b4aa46be17d645c2411b23635e10381f7989216c8ba3de03dad2d3d25","sha256:9e1abf3725a78bedba69467c42de4e68fdfb5aa6223cc0946c6f43738898ee0f"],"state_sha256":"23d112f1b18329907fee07c855fc2a869b98a6151f14ebecf6b8ec6b6210f035"}