{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:77X5JHJKPS4OONXI64HGUTAVWV","short_pith_number":"pith:77X5JHJK","canonical_record":{"source":{"id":"1508.06977","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-08-27T19:15:15Z","cross_cats_sorted":[],"title_canon_sha256":"1c4efa57895a3b8891e5c2a1f171feba1e905bec88fc42a20c4f83be503e166f","abstract_canon_sha256":"f64be17c651c3dbe22795025674c65243489d0c1baa50b0e1360737d86817f6c"},"schema_version":"1.0"},"canonical_sha256":"ffefd49d2a7cb8e736e8f70e6a4c15b5556415cc3a5ca457a88c36cec6cfbb25","source":{"kind":"arxiv","id":"1508.06977","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06977","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06977v1","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06977","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"pith_short_12","alias_value":"77X5JHJKPS4O","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"77X5JHJKPS4OONXI","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"77X5JHJK","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:77X5JHJKPS4OONXI64HGUTAVWV","target":"record","payload":{"canonical_record":{"source":{"id":"1508.06977","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-08-27T19:15:15Z","cross_cats_sorted":[],"title_canon_sha256":"1c4efa57895a3b8891e5c2a1f171feba1e905bec88fc42a20c4f83be503e166f","abstract_canon_sha256":"f64be17c651c3dbe22795025674c65243489d0c1baa50b0e1360737d86817f6c"},"schema_version":"1.0"},"canonical_sha256":"ffefd49d2a7cb8e736e8f70e6a4c15b5556415cc3a5ca457a88c36cec6cfbb25","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:24.156508Z","signature_b64":"7P4V3k0D+umcjVLqiKvfmAx2Ph+MUEzMyjMPFOASECdo4s/Pj8QozGjucCvzW4bOs7M7LkbZB7Agd2GOmPxUDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ffefd49d2a7cb8e736e8f70e6a4c15b5556415cc3a5ca457a88c36cec6cfbb25","last_reissued_at":"2026-05-18T00:33:24.155828Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:24.155828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.06977","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":"2026-05-18T00:33:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u/v8S4pH326j00JGbgiDXM77OIz5xfcSAdvSVGCv+EsazELHghk9jJVKfhZETE6DbMhlGbpH9kYwF6uIg5/aCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:15:12.068852Z"},"content_sha256":"a5e4737542f0ef3ab4d8ed05106c755c8a1432c31c382356f009d1a5373ac234","schema_version":"1.0","event_id":"sha256:a5e4737542f0ef3ab4d8ed05106c755c8a1432c31c382356f009d1a5373ac234"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:77X5JHJKPS4OONXI64HGUTAVWV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A note on multiple imputation for method of moments estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Jae Kwang Kim, Shu Yang","submitted_at":"2015-08-27T19:15:15Z","abstract_excerpt":"Multiple imputation is a popular imputation method for general purpose estimation. Rubin(1987) provided an easily applicable formula for the variance estimation of multiple imputation. However, the validity of the multiple imputation inference requires the congeniality condition of Meng(1994), which is not necessarily satisfied for method of moments estimation. This paper presents the asymptotic bias of Rubin's variance estimator when the method of moments estimator is used as a complete-sample estimator in the multiple imputation procedure. A new variance estimator based on over-imputation is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06977","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":"2026-05-18T00:33:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r71596s1R/pT17U0kymF8v/xsSonHNYeGpYRp7DT0V8aK3173T1OYvkdXrjLr+70EPus7uV3PX6yj4D9g0ybBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:15:12.069186Z"},"content_sha256":"786e5b98a1e5c16ce413961fe0a7a1f5b230f99d6ed692ad05357da99777259d","schema_version":"1.0","event_id":"sha256:786e5b98a1e5c16ce413961fe0a7a1f5b230f99d6ed692ad05357da99777259d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/77X5JHJKPS4OONXI64HGUTAVWV/bundle.json","state_url":"https://pith.science/pith/77X5JHJKPS4OONXI64HGUTAVWV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/77X5JHJKPS4OONXI64HGUTAVWV/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":"2026-05-28T18:15:12Z","links":{"resolver":"https://pith.science/pith/77X5JHJKPS4OONXI64HGUTAVWV","bundle":"https://pith.science/pith/77X5JHJKPS4OONXI64HGUTAVWV/bundle.json","state":"https://pith.science/pith/77X5JHJKPS4OONXI64HGUTAVWV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/77X5JHJKPS4OONXI64HGUTAVWV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:77X5JHJKPS4OONXI64HGUTAVWV","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":"f64be17c651c3dbe22795025674c65243489d0c1baa50b0e1360737d86817f6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-08-27T19:15:15Z","title_canon_sha256":"1c4efa57895a3b8891e5c2a1f171feba1e905bec88fc42a20c4f83be503e166f"},"schema_version":"1.0","source":{"id":"1508.06977","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.06977","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"arxiv_version","alias_value":"1508.06977v1","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.06977","created_at":"2026-05-18T00:33:24Z"},{"alias_kind":"pith_short_12","alias_value":"77X5JHJKPS4O","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"77X5JHJKPS4OONXI","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"77X5JHJK","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:786e5b98a1e5c16ce413961fe0a7a1f5b230f99d6ed692ad05357da99777259d","target":"graph","created_at":"2026-05-18T00:33:24Z","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":"Multiple imputation is a popular imputation method for general purpose estimation. Rubin(1987) provided an easily applicable formula for the variance estimation of multiple imputation. However, the validity of the multiple imputation inference requires the congeniality condition of Meng(1994), which is not necessarily satisfied for method of moments estimation. This paper presents the asymptotic bias of Rubin's variance estimator when the method of moments estimator is used as a complete-sample estimator in the multiple imputation procedure. A new variance estimator based on over-imputation is","authors_text":"Jae Kwang Kim, Shu Yang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-08-27T19:15:15Z","title":"A note on multiple imputation for method of moments estimation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.06977","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:a5e4737542f0ef3ab4d8ed05106c755c8a1432c31c382356f009d1a5373ac234","target":"record","created_at":"2026-05-18T00:33:24Z","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":"f64be17c651c3dbe22795025674c65243489d0c1baa50b0e1360737d86817f6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-08-27T19:15:15Z","title_canon_sha256":"1c4efa57895a3b8891e5c2a1f171feba1e905bec88fc42a20c4f83be503e166f"},"schema_version":"1.0","source":{"id":"1508.06977","kind":"arxiv","version":1}},"canonical_sha256":"ffefd49d2a7cb8e736e8f70e6a4c15b5556415cc3a5ca457a88c36cec6cfbb25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ffefd49d2a7cb8e736e8f70e6a4c15b5556415cc3a5ca457a88c36cec6cfbb25","first_computed_at":"2026-05-18T00:33:24.155828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:24.155828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7P4V3k0D+umcjVLqiKvfmAx2Ph+MUEzMyjMPFOASECdo4s/Pj8QozGjucCvzW4bOs7M7LkbZB7Agd2GOmPxUDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:24.156508Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.06977","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5e4737542f0ef3ab4d8ed05106c755c8a1432c31c382356f009d1a5373ac234","sha256:786e5b98a1e5c16ce413961fe0a7a1f5b230f99d6ed692ad05357da99777259d"],"state_sha256":"e5f1538c464dd8c2ead061ccadb4103c8d0892714d1eebf0d381e48ef02a0725"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ulhZmpzNYaX2i6A22N+vRQ9XSPd6CvXK7yb0mNXk7olreCVq/tYej+b9+kELkJTGEp8PZH8gRcZChZiUh5HABA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:15:12.071023Z","bundle_sha256":"bf3a61f3988380234bbfccc53ea29a20ef71e3fe986670b246b9b4187d8b60de"}}