{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QATBPH5Q7BP6CM33J35VLZX5BR","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":"d9d87cd879d67eeeee209423994d839b421ae55d34bcc636e221e4f405439925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-11-14T18:38:12Z","title_canon_sha256":"fe33bcbc5ba3c98d9b2e75ae708ae826ecbc99e4300cbd472549c65a45634b89"},"schema_version":"1.0","source":{"id":"1711.05243","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.05243","created_at":"2026-05-18T00:26:07Z"},{"alias_kind":"arxiv_version","alias_value":"1711.05243v1","created_at":"2026-05-18T00:26:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.05243","created_at":"2026-05-18T00:26:07Z"},{"alias_kind":"pith_short_12","alias_value":"QATBPH5Q7BP6","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_16","alias_value":"QATBPH5Q7BP6CM33","created_at":"2026-05-18T12:31:37Z"},{"alias_kind":"pith_short_8","alias_value":"QATBPH5Q","created_at":"2026-05-18T12:31:37Z"}],"graph_snapshots":[{"event_id":"sha256:ff62bc86b5905059cf73bc0fb74db6a17a2fa4a06123c049b69da4cbe0f636e9","target":"graph","created_at":"2026-05-18T00:26:07Z","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":"Health care claims data refer to information generated from interactions within health systems. They have been used in health services research for decades to assess effectiveness of interventions, determine the quality of medical care, predict disease prognosis, and monitor population health. While claims data are relatively cheap and ubiquitous, they are high-dimensional, sparse, and noisy, typically requiring dimension reduction. In health services research, the most common data reduction strategy involves use of a comorbidity index -- a single number summary reflecting overall patient heal","authors_text":"Jacob Spertus, Samrachana Adhikari, Sharon-Lise Normand","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-11-14T18:38:12Z","title":"Regularization and Hierarchical Prior Distributions for Adjustment with Health Care Claims Data: Rethinking Comorbidity Scores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.05243","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":"sha256:3a2322f12fa4c2c84a060df0cabfe9dfed308113f2308c8c77ede5a1ab50211d","target":"record","created_at":"2026-05-18T00:26:07Z","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":"d9d87cd879d67eeeee209423994d839b421ae55d34bcc636e221e4f405439925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.AP","submitted_at":"2017-11-14T18:38:12Z","title_canon_sha256":"fe33bcbc5ba3c98d9b2e75ae708ae826ecbc99e4300cbd472549c65a45634b89"},"schema_version":"1.0","source":{"id":"1711.05243","kind":"arxiv","version":1}},"canonical_sha256":"8026179fb0f85fe1337b4efb55e6fd0c50847375ea7d07d620ef6bafceee038f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8026179fb0f85fe1337b4efb55e6fd0c50847375ea7d07d620ef6bafceee038f","first_computed_at":"2026-05-18T00:26:07.523885Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:07.523885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cjaYjDb9/QGBBfO/PggcYhXF5J3xVrfqTOt+YlVzTxn634fy2WGwozQa7L3j29KXNTIirymfd//jIiZMxLGoDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:07.524498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.05243","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a2322f12fa4c2c84a060df0cabfe9dfed308113f2308c8c77ede5a1ab50211d","sha256:ff62bc86b5905059cf73bc0fb74db6a17a2fa4a06123c049b69da4cbe0f636e9"],"state_sha256":"52668c31cbfce5e331a71d786b88ab66cdb65c22df32e2d5909dee808f92e92a"}