{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:INRSHPN5JYUQBR5TYNS4JNZ4B4","short_pith_number":"pith:INRSHPN5","canonical_record":{"source":{"id":"1502.03609","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-02-12T11:37:19Z","cross_cats_sorted":["stat.ME"],"title_canon_sha256":"90b07d33b9a6da1d6379b6abee7a71b3468bad4494c427199ef2d4a4e06236a3","abstract_canon_sha256":"69019367521e83d5612d802459ed69012505337a6c7f814ffc3cfd2fefcb120f"},"schema_version":"1.0"},"canonical_sha256":"436323bdbd4e2900c7b3c365c4b73c0f12ca42d2540a435cefe20a9eab066af4","source":{"kind":"arxiv","id":"1502.03609","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03609","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03609v1","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03609","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"pith_short_12","alias_value":"INRSHPN5JYUQ","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"INRSHPN5JYUQBR5T","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"INRSHPN5","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:INRSHPN5JYUQBR5TYNS4JNZ4B4","target":"record","payload":{"canonical_record":{"source":{"id":"1502.03609","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-02-12T11:37:19Z","cross_cats_sorted":["stat.ME"],"title_canon_sha256":"90b07d33b9a6da1d6379b6abee7a71b3468bad4494c427199ef2d4a4e06236a3","abstract_canon_sha256":"69019367521e83d5612d802459ed69012505337a6c7f814ffc3cfd2fefcb120f"},"schema_version":"1.0"},"canonical_sha256":"436323bdbd4e2900c7b3c365c4b73c0f12ca42d2540a435cefe20a9eab066af4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:01.790224Z","signature_b64":"Fb4WZ86mBeiNZxcR8VDEA/+pwu39jj1UMX1JkLlo6OpKzu6PF0fF15cmNY/3+Zk0GrvzFLc6X1ue4Z6Xt1vsBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"436323bdbd4e2900c7b3c365c4b73c0f12ca42d2540a435cefe20a9eab066af4","last_reissued_at":"2026-05-18T01:01:01.789570Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:01.789570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.03609","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":"2026-05-18T01:01:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hb/Jqn5ovh9XSQVS/A+rRKNrKURBQvo1Z5dhFWo4iE7vrBhXRbqWXewqwqZX/Cs99nvFlRJdtvb6nByeRmfIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T05:24:42.657676Z"},"content_sha256":"c7b4e5c67bee82f6c0856edeab489e11e553afd1756d4a8f484e37e381ab9337","schema_version":"1.0","event_id":"sha256:c7b4e5c67bee82f6c0856edeab489e11e553afd1756d4a8f484e37e381ab9337"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:INRSHPN5JYUQBR5TYNS4JNZ4B4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correcting for non-ignorable missingness in smoking trends","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ME"],"primary_cat":"stat.AP","authors_text":"Hanna Tolonen, Juha Karvanen, Juho Kopra, Tommi H\\\"ark\\\"anen","submitted_at":"2015-02-12T11:37:19Z","abstract_excerpt":"Data missing not at random (MNAR) is a major challenge in survey sampling. We propose an approach based on registry data to deal with non-ignorable missingness in health examination surveys. The approach relies on follow-up data available from administrative registers several years after the survey. For illustration we use data on smoking prevalence in Finnish National FINRISK study conducted in 1972-1997. The data consist of measured survey information including missingness indicators, register-based background information and register-based time-to-disease survival data. The parameters of mi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03609","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":"2026-05-18T01:01:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aGzRtNLD9jOMcdKTYvXyO1efbIF1glhTRoDWSa8fnsQBNOSL+Zt9EFufY0z1A+k33dQeIaHgFvfphYya6c1hDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T05:24:42.658031Z"},"content_sha256":"9b3b9ea4f612b22383ebe4c2f696ca15afdbfd11a99739e49f8d5823ffdf276f","schema_version":"1.0","event_id":"sha256:9b3b9ea4f612b22383ebe4c2f696ca15afdbfd11a99739e49f8d5823ffdf276f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/bundle.json","state_url":"https://pith.science/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/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":"2026-06-26T05:24:42Z","links":{"resolver":"https://pith.science/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4","bundle":"https://pith.science/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/bundle.json","state":"https://pith.science/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/INRSHPN5JYUQBR5TYNS4JNZ4B4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:INRSHPN5JYUQBR5TYNS4JNZ4B4","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":"69019367521e83d5612d802459ed69012505337a6c7f814ffc3cfd2fefcb120f","cross_cats_sorted":["stat.ME"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-02-12T11:37:19Z","title_canon_sha256":"90b07d33b9a6da1d6379b6abee7a71b3468bad4494c427199ef2d4a4e06236a3"},"schema_version":"1.0","source":{"id":"1502.03609","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03609","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03609v1","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03609","created_at":"2026-05-18T01:01:01Z"},{"alias_kind":"pith_short_12","alias_value":"INRSHPN5JYUQ","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"INRSHPN5JYUQBR5T","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"INRSHPN5","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:9b3b9ea4f612b22383ebe4c2f696ca15afdbfd11a99739e49f8d5823ffdf276f","target":"graph","created_at":"2026-05-18T01:01:01Z","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":"Data missing not at random (MNAR) is a major challenge in survey sampling. We propose an approach based on registry data to deal with non-ignorable missingness in health examination surveys. The approach relies on follow-up data available from administrative registers several years after the survey. For illustration we use data on smoking prevalence in Finnish National FINRISK study conducted in 1972-1997. The data consist of measured survey information including missingness indicators, register-based background information and register-based time-to-disease survival data. The parameters of mi","authors_text":"Hanna Tolonen, Juha Karvanen, Juho Kopra, Tommi H\\\"ark\\\"anen","cross_cats":["stat.ME"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-02-12T11:37:19Z","title":"Correcting for non-ignorable missingness in smoking trends"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03609","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:c7b4e5c67bee82f6c0856edeab489e11e553afd1756d4a8f484e37e381ab9337","target":"record","created_at":"2026-05-18T01:01:01Z","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":"69019367521e83d5612d802459ed69012505337a6c7f814ffc3cfd2fefcb120f","cross_cats_sorted":["stat.ME"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2015-02-12T11:37:19Z","title_canon_sha256":"90b07d33b9a6da1d6379b6abee7a71b3468bad4494c427199ef2d4a4e06236a3"},"schema_version":"1.0","source":{"id":"1502.03609","kind":"arxiv","version":1}},"canonical_sha256":"436323bdbd4e2900c7b3c365c4b73c0f12ca42d2540a435cefe20a9eab066af4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"436323bdbd4e2900c7b3c365c4b73c0f12ca42d2540a435cefe20a9eab066af4","first_computed_at":"2026-05-18T01:01:01.789570Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:01.789570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fb4WZ86mBeiNZxcR8VDEA/+pwu39jj1UMX1JkLlo6OpKzu6PF0fF15cmNY/3+Zk0GrvzFLc6X1ue4Z6Xt1vsBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:01.790224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.03609","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c7b4e5c67bee82f6c0856edeab489e11e553afd1756d4a8f484e37e381ab9337","sha256:9b3b9ea4f612b22383ebe4c2f696ca15afdbfd11a99739e49f8d5823ffdf276f"],"state_sha256":"d987989820487fac8fa74ea2a22ce43b279966b546e3892889be5b968a0b043b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fE97oWywDSkytSQ0b8CYTeEHEnbru4cnbB+bCzG3qEsIWnObFtoQ9ZuMZp74ftWCU283vMKXKeUJOeLacCujCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T05:24:42.660125Z","bundle_sha256":"604e3df6daac757a16df036592d7ae752de44c7de78f6539a0198a63a5cb318b"}}