{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GAE7JIH724ON2D4GVXOPK43WB7","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":"709f617e5632102832df82bc8fcc654ee7482e4e9da69073c417a56bb1c417dd","cross_cats_sorted":["physics.flu-dyn","q-bio.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-03-05T19:06:52Z","title_canon_sha256":"c86b41a09766e6cdbad7829ca3bb97d3c68c05c8b2663d56ccd9016cf2de816d"},"schema_version":"1.0","source":{"id":"1003.1324","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.1324","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"arxiv_version","alias_value":"1003.1324v2","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.1324","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"pith_short_12","alias_value":"GAE7JIH724ON","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GAE7JIH724ON2D4G","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GAE7JIH7","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:784409fee9cb6a165a2a3ff30502aababb0e0f160c198a6043fa3d28dc5b0748","target":"graph","created_at":"2026-05-18T02:08:45Z","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":"The possibility of microscopic swimming by extraction of energy from an external flow is discussed, focusing on the migration of a simple trimer across a linear shear flow. The geometric properties of swimming, together with the possible generalization to the case of a vesicle, are analyzed.The mechanism of energy extraction from the flow appears to be the generalization to a discrete swimmer of the tank-treading regime of a vesicle. The swimmer takes advantage of the external flow by both extracting energy for swimming and \"sailing\" through it. The migration velocity is found to scale linearl","authors_text":"Piero Olla","cross_cats":["physics.flu-dyn","q-bio.OT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-03-05T19:06:52Z","title":"Passive swimming in low Reynolds number flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.1324","kind":"arxiv","version":2},"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":"sha256:87ea95b5d777138b9e44e2ce9e682506c116fd34b04577ac01284f0f237758d6","target":"record","created_at":"2026-05-18T02:08:45Z","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":"709f617e5632102832df82bc8fcc654ee7482e4e9da69073c417a56bb1c417dd","cross_cats_sorted":["physics.flu-dyn","q-bio.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2010-03-05T19:06:52Z","title_canon_sha256":"c86b41a09766e6cdbad7829ca3bb97d3c68c05c8b2663d56ccd9016cf2de816d"},"schema_version":"1.0","source":{"id":"1003.1324","kind":"arxiv","version":2}},"canonical_sha256":"3009f4a0ffd71cdd0f86addcf573760fe30f07c623aa92991e3489b62fee6992","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3009f4a0ffd71cdd0f86addcf573760fe30f07c623aa92991e3489b62fee6992","first_computed_at":"2026-05-18T02:08:45.548679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:45.548679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OfkQcqV1eQ9x0wF1gz5oMwXXny1q32btTOf4FA931n0PYYCR8Gy0+577sQADp9j4OTrpZu+EHGM8Oz66+Zw2BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:45.549463Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.1324","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87ea95b5d777138b9e44e2ce9e682506c116fd34b04577ac01284f0f237758d6","sha256:784409fee9cb6a165a2a3ff30502aababb0e0f160c198a6043fa3d28dc5b0748"],"state_sha256":"d7e414aa73af55b4ee089da0802a117878fbce319e3ad4f560a4ff8490011abb"}