{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2OJXARUW5GWKFCIFSISXRARRNZ","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":"a783e3b01f92155c27681b8e124832795a9835b0937a6f305e4929c2d74ec213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-22T15:46:01Z","title_canon_sha256":"07495cd8b16f82a47e3f91bfa94470436c1e785be69819b8718361d0141ba7e2"},"schema_version":"1.0","source":{"id":"2606.23499","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.23499","created_at":"2026-06-23T03:14:21Z"},{"alias_kind":"arxiv_version","alias_value":"2606.23499v1","created_at":"2026-06-23T03:14:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.23499","created_at":"2026-06-23T03:14:21Z"},{"alias_kind":"pith_short_12","alias_value":"2OJXARUW5GWK","created_at":"2026-06-23T03:14:21Z"},{"alias_kind":"pith_short_16","alias_value":"2OJXARUW5GWKFCIF","created_at":"2026-06-23T03:14:21Z"},{"alias_kind":"pith_short_8","alias_value":"2OJXARUW","created_at":"2026-06-23T03:14:21Z"}],"graph_snapshots":[{"event_id":"sha256:04de8131042ad326b0d821ce32f735efa1726beb1a52b3e6f1e55a45a36c87dd","target":"graph","created_at":"2026-06-23T03:14:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.23499/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Existing power and design methods for multiple-intervention stepped wedge designs (M-SWDs) typically assume exchangeable cluster-period correlation, despite evidence that correlation often decays over time. Misspecification of this correlation structure can substantially distort variance estimation and power, particularly for treatment interaction effects. We develop a unified covariance framework for M-SWDs that separates intracluster correlation from an explicit cluster-period correlation matrix. This formulation accommodates exchangeable, autoregressive, and more general distance-dependent ","authors_text":"Jose-Miguel Yamal, Samantha M. Levy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-22T15:46:01Z","title":"A generalized multiple-intervention stepped wedge design framework for treatment effect estimation in the presence of non-uniform cluster-period correlation structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.23499","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:b01d819b2cb18a3736955b25b7e882c8662b983df6ccfbf51291ceea16591760","target":"record","created_at":"2026-06-23T03:14:21Z","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":"a783e3b01f92155c27681b8e124832795a9835b0937a6f305e4929c2d74ec213","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-22T15:46:01Z","title_canon_sha256":"07495cd8b16f82a47e3f91bfa94470436c1e785be69819b8718361d0141ba7e2"},"schema_version":"1.0","source":{"id":"2606.23499","kind":"arxiv","version":1}},"canonical_sha256":"d393704696e9aca2890592257882316e60a562115efa8f1ab1a370da2b368cce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d393704696e9aca2890592257882316e60a562115efa8f1ab1a370da2b368cce","first_computed_at":"2026-06-23T03:14:21.631675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:14:21.631675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ib3vq2xT+8dBEv87NmO0ESjAOstrX2SoaKP+46GjqYwhMBPUMxjE/leElBl/BFFNcQWg5qkrUdreeh+j0a3GAg==","signature_status":"signed_v1","signed_at":"2026-06-23T03:14:21.632074Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.23499","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b01d819b2cb18a3736955b25b7e882c8662b983df6ccfbf51291ceea16591760","sha256:04de8131042ad326b0d821ce32f735efa1726beb1a52b3e6f1e55a45a36c87dd"],"state_sha256":"dc0e8f313c2423df9e77705b508190ea3da95a06b1cde3a9be40aab8bbb88f19"}