{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EVP3UHV5RA5A2CAIYF2YLLLT5K","short_pith_number":"pith:EVP3UHV5","canonical_record":{"source":{"id":"1606.01385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-06-04T15:22:02Z","cross_cats_sorted":[],"title_canon_sha256":"3347de8cfec59d5fa45a67687559059b06b02b40a6303aef9c9db17c2a20768a","abstract_canon_sha256":"eda0525f626d28a57a47dc27b54bc8f805a3d0f4e2996f055b1b8e9121295b1c"},"schema_version":"1.0"},"canonical_sha256":"255fba1ebd883a0d0808c17585ad73eaafd3d630efcb77af4d15a12e1fb98307","source":{"kind":"arxiv","id":"1606.01385","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.01385","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"1606.01385v1","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.01385","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"EVP3UHV5RA5A","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"EVP3UHV5RA5A2CAI","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"EVP3UHV5","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EVP3UHV5RA5A2CAIYF2YLLLT5K","target":"record","payload":{"canonical_record":{"source":{"id":"1606.01385","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-06-04T15:22:02Z","cross_cats_sorted":[],"title_canon_sha256":"3347de8cfec59d5fa45a67687559059b06b02b40a6303aef9c9db17c2a20768a","abstract_canon_sha256":"eda0525f626d28a57a47dc27b54bc8f805a3d0f4e2996f055b1b8e9121295b1c"},"schema_version":"1.0"},"canonical_sha256":"255fba1ebd883a0d0808c17585ad73eaafd3d630efcb77af4d15a12e1fb98307","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:54.279372Z","signature_b64":"c9LC3WwQzuPP2knu4X3WRdmehIAMehlBZGGA4HVdvfdE9ozBead0fvjo0I57xdKxZtdBtZFSYP5nzAF/RY7XDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"255fba1ebd883a0d0808c17585ad73eaafd3d630efcb77af4d15a12e1fb98307","last_reissued_at":"2026-05-18T01:12:54.279032Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:54.279032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.01385","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Igbja+kA2N154rmol28ZM1S/SR3lDCBzcM+UBBI3beMc0GmiNrEr/dFv0OcqOTzdhtjFLgFK8pqgNUSl8adAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:06:17.077148Z"},"content_sha256":"6c31785dc712bdd03c6cde5f1614166bc1e8b6856e10a6b80542322d237a3bd7","schema_version":"1.0","event_id":"sha256:6c31785dc712bdd03c6cde5f1614166bc1e8b6856e10a6b80542322d237a3bd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EVP3UHV5RA5A2CAIYF2YLLLT5K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Conditional Copula Models for Right-Censored Clustered Event Time Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Candida Geerdens, Elif Fidan Acar, Paul Janssen","submitted_at":"2016-06-04T15:22:02Z","abstract_excerpt":"This paper proposes a modelling strategy to infer the impact of a covariate on the dependence structure of right-censored clustered event time data. The joint survival function of the event times is modelled using a parametric conditional copula whose parameter depends on a cluster-level covariate in a functional way. We use a local likelihood approach to estimate the form of the copula parameter and outline a generalized likelihood ratio-type test strategy to formally test its constancy. A bootstrap procedure is employed to obtain an approximate $p$-value for the test. The performance of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.01385","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RzzCXrtcSmfZcDHwQ808xpCQDy7LrsMfrn9zThz+sq9trAD7uSKN/QuKhxyRVxYoPpC/8F2NryEokE+2Q3uVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:06:17.077865Z"},"content_sha256":"fe1b88bf7f5f25545147d745a9fd9dc4c917f3a1ee4c5f43b6262ad2889c3a5c","schema_version":"1.0","event_id":"sha256:fe1b88bf7f5f25545147d745a9fd9dc4c917f3a1ee4c5f43b6262ad2889c3a5c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/bundle.json","state_url":"https://pith.science/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T18:06:17Z","links":{"resolver":"https://pith.science/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K","bundle":"https://pith.science/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/bundle.json","state":"https://pith.science/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EVP3UHV5RA5A2CAIYF2YLLLT5K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EVP3UHV5RA5A2CAIYF2YLLLT5K","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":"eda0525f626d28a57a47dc27b54bc8f805a3d0f4e2996f055b1b8e9121295b1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-06-04T15:22:02Z","title_canon_sha256":"3347de8cfec59d5fa45a67687559059b06b02b40a6303aef9c9db17c2a20768a"},"schema_version":"1.0","source":{"id":"1606.01385","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.01385","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"1606.01385v1","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.01385","created_at":"2026-05-18T01:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"EVP3UHV5RA5A","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"EVP3UHV5RA5A2CAI","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"EVP3UHV5","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:fe1b88bf7f5f25545147d745a9fd9dc4c917f3a1ee4c5f43b6262ad2889c3a5c","target":"graph","created_at":"2026-05-18T01:12:54Z","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":"This paper proposes a modelling strategy to infer the impact of a covariate on the dependence structure of right-censored clustered event time data. The joint survival function of the event times is modelled using a parametric conditional copula whose parameter depends on a cluster-level covariate in a functional way. We use a local likelihood approach to estimate the form of the copula parameter and outline a generalized likelihood ratio-type test strategy to formally test its constancy. A bootstrap procedure is employed to obtain an approximate $p$-value for the test. The performance of the ","authors_text":"Candida Geerdens, Elif Fidan Acar, Paul Janssen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-06-04T15:22:02Z","title":"Conditional Copula Models for Right-Censored Clustered Event Time Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.01385","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":"sha256:6c31785dc712bdd03c6cde5f1614166bc1e8b6856e10a6b80542322d237a3bd7","target":"record","created_at":"2026-05-18T01:12:54Z","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":"eda0525f626d28a57a47dc27b54bc8f805a3d0f4e2996f055b1b8e9121295b1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-06-04T15:22:02Z","title_canon_sha256":"3347de8cfec59d5fa45a67687559059b06b02b40a6303aef9c9db17c2a20768a"},"schema_version":"1.0","source":{"id":"1606.01385","kind":"arxiv","version":1}},"canonical_sha256":"255fba1ebd883a0d0808c17585ad73eaafd3d630efcb77af4d15a12e1fb98307","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"255fba1ebd883a0d0808c17585ad73eaafd3d630efcb77af4d15a12e1fb98307","first_computed_at":"2026-05-18T01:12:54.279032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:54.279032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c9LC3WwQzuPP2knu4X3WRdmehIAMehlBZGGA4HVdvfdE9ozBead0fvjo0I57xdKxZtdBtZFSYP5nzAF/RY7XDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:54.279372Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.01385","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c31785dc712bdd03c6cde5f1614166bc1e8b6856e10a6b80542322d237a3bd7","sha256:fe1b88bf7f5f25545147d745a9fd9dc4c917f3a1ee4c5f43b6262ad2889c3a5c"],"state_sha256":"363ff27e1b3a0e6796d1b273b964fc7e32f032eccd7caf3bf9e2ccac4dad2cc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HkSU4q9uKDKlkmmBRcwTeUTcgI2S4v9JoxJjjRaj3TadIDuJTo8h4c/QCS8bc/fu2LLBXj4y2waVuwfjCkmtBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:06:17.083578Z","bundle_sha256":"ea11c875b875d28cc9e6085575788a394eea4404328c816843be5491aaf1c113"}}