{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:M44E5T4BIWRWL3A3K5XVYV77IC","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":"367b25452e37f4c39f9de16a3c5bd1c781bf37804ff4278ab143c95545bdbc28","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-02T01:33:19Z","title_canon_sha256":"54e7eca6d9e31ab8e48bf3a923843d0652062b514aaa23ebbc32083b9fbdf05a"},"schema_version":"1.0","source":{"id":"2606.03012","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03012","created_at":"2026-06-03T01:05:29Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03012v1","created_at":"2026-06-03T01:05:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03012","created_at":"2026-06-03T01:05:29Z"},{"alias_kind":"pith_short_12","alias_value":"M44E5T4BIWRW","created_at":"2026-06-03T01:05:29Z"},{"alias_kind":"pith_short_16","alias_value":"M44E5T4BIWRWL3A3","created_at":"2026-06-03T01:05:29Z"},{"alias_kind":"pith_short_8","alias_value":"M44E5T4B","created_at":"2026-06-03T01:05:29Z"}],"graph_snapshots":[{"event_id":"sha256:88bf70d6b0b34ac985767df7c27e39f84f509d439f324baeeed65b869a903b11","target":"graph","created_at":"2026-06-03T01:05:29Z","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/2606.03012/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Switchback experiments -- in which treatment is assigned at the level of a cluster crossed with a time period -- are widely used in marketplace and platform settings, yet no closed-form power formula exists for them. We fill this gap by deriving a closed-form, multi-level asymptotic variance approximation for the individual-level OLS estimator, facilitating power budgeting. Using this formula, we reveal a structural floor on statistical power: while idiosyncratic noise vanishes with observation density, macro-level shocks are multiplicatively penalized by cluster size imbalance. We confirm thr","authors_text":"Sergei Pankratev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-02T01:33:19Z","title":"Powerful Switchback Experiments -- Or Not?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03012","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:c528efa083aed1581a43cbd344bcf03c994a1a4da49ad43d7dce6a13db9dc91f","target":"record","created_at":"2026-06-03T01:05:29Z","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":"367b25452e37f4c39f9de16a3c5bd1c781bf37804ff4278ab143c95545bdbc28","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2026-06-02T01:33:19Z","title_canon_sha256":"54e7eca6d9e31ab8e48bf3a923843d0652062b514aaa23ebbc32083b9fbdf05a"},"schema_version":"1.0","source":{"id":"2606.03012","kind":"arxiv","version":1}},"canonical_sha256":"67384ecf8145a365ec1b576f5c57ff409e4b5c6f8f34dcd44567c8ccc21d311d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67384ecf8145a365ec1b576f5c57ff409e4b5c6f8f34dcd44567c8ccc21d311d","first_computed_at":"2026-06-03T01:05:29.207670Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:05:29.207670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YWnf4RkFjpkxswIXRKPiSCcPxhOIuCRhJWUdq0QpS66Uh15phOnSoppEMmxJLqTcyMb574PDlm0+WLDifD9qCA==","signature_status":"signed_v1","signed_at":"2026-06-03T01:05:29.208043Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.03012","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c528efa083aed1581a43cbd344bcf03c994a1a4da49ad43d7dce6a13db9dc91f","sha256:88bf70d6b0b34ac985767df7c27e39f84f509d439f324baeeed65b869a903b11"],"state_sha256":"aec3db0efe6b1158163b8c2d85195b6506796d9553d7b1c4b6c64dd4f5c78181"}