{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:4MAENYMZFRJCMBBWDDQGWCBPGZ","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":"64fb11410623e8a5238e49f962672a7fe9b9a98982aa1f7bdd7d1a4e0bf57896","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2022-04-15T03:23:34Z","title_canon_sha256":"85667743041c4a35d4fa586c6ac01a2072bb2168bb8fb9d3761d90b319422fde"},"schema_version":"1.0","source":{"id":"2204.07310","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.07310","created_at":"2026-07-05T05:59:20Z"},{"alias_kind":"arxiv_version","alias_value":"2204.07310v1","created_at":"2026-07-05T05:59:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.07310","created_at":"2026-07-05T05:59:20Z"},{"alias_kind":"pith_short_12","alias_value":"4MAENYMZFRJC","created_at":"2026-07-05T05:59:20Z"},{"alias_kind":"pith_short_16","alias_value":"4MAENYMZFRJCMBBW","created_at":"2026-07-05T05:59:20Z"},{"alias_kind":"pith_short_8","alias_value":"4MAENYMZ","created_at":"2026-07-05T05:59:20Z"}],"graph_snapshots":[{"event_id":"sha256:2afc23028e79981c70da25e9dffc80c16a9142992ec078bcdc92fbdc1b3ba79a","target":"graph","created_at":"2026-07-05T05:59:20Z","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/2204.07310/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have experimentally realized an information engine consisting of an optically trapped, heavy bead in water. The device raises the trap center after a favorable \"up\" thermal fluctuation, thereby increasing the bead's average gravitational potential energy. In the presence of measurement noise, poor feedback decisions degrade its performance; below a critical signal-to-noise ratio, the engine shows a phase transition and cannot store any gravitational energy. However, using Bayesian estimates of the bead's position to make feedback decisions can extract gravitational energy at all measurement","authors_text":"David A. Sivak, Jannik Ehrich, John Bechhoefer, Joseph N. E. Lucero, Tushar K. Saha","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2022-04-15T03:23:34Z","title":"Bayesian information engine that optimally exploits noisy measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.07310","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":"sha256:51a3b2416c8c1c4d19411e4460281c8fb8cb23b6aae5c645abdf8056cbf08b99","target":"record","created_at":"2026-07-05T05:59:20Z","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":"64fb11410623e8a5238e49f962672a7fe9b9a98982aa1f7bdd7d1a4e0bf57896","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2022-04-15T03:23:34Z","title_canon_sha256":"85667743041c4a35d4fa586c6ac01a2072bb2168bb8fb9d3761d90b319422fde"},"schema_version":"1.0","source":{"id":"2204.07310","kind":"arxiv","version":1}},"canonical_sha256":"e30046e1992c5226043618e06b082f3670f34d44f6d0b4d870dce7319fcba144","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e30046e1992c5226043618e06b082f3670f34d44f6d0b4d870dce7319fcba144","first_computed_at":"2026-07-05T05:59:20.300533Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:59:20.300533Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"szTjIfdeQS0QgGCQH3Z8ggnM845BKw+63DwlRevLCZ0yV2e1yVowqfxmw3Ga5IwwQwjL0IILynvJnv9FDlxXBg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:59:20.301064Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.07310","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51a3b2416c8c1c4d19411e4460281c8fb8cb23b6aae5c645abdf8056cbf08b99","sha256:2afc23028e79981c70da25e9dffc80c16a9142992ec078bcdc92fbdc1b3ba79a"],"state_sha256":"96a2f900ccb3935be18af5a203ee883ac17f424269795b18e360f2d79ef16f19"}