{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:MIJ27OAQPRBMKE3OQSN6B2RIRX","short_pith_number":"pith:MIJ27OAQ","schema_version":"1.0","canonical_sha256":"6213afb8107c42c5136e849be0ea288df21cca67fdcb3b1d36eb5600fe33b123","source":{"kind":"arxiv","id":"2303.16672","version":1},"attestation_state":"computed","paper":{"title":"Force-Free and Autonomous Active Brownian Ratchets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Constantin Rein, Klaus Kroy, Martin Kol\\'a\\v{r}, Viktor Holubec","submitted_at":"2023-03-29T13:25:59Z","abstract_excerpt":"Autonomous active Brownian ratchets rectify active Brownian particle motion solely by means of a spatially modulated but stationary activity, without external forces. We argue that such ratcheting requires at least a two-dimensional geometry. The underlying principle is similar to the ratcheting induced by steric obstacles in microswimmer baths: suitably polarized swimmers get channeled, while the others get trapped in low-activity regions until they loose direction. The maximum current is generally reached in the limit of large propulsion speeds, in which the rectification efficiency vanishes"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2303.16672","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2023-03-29T13:25:59Z","cross_cats_sorted":[],"title_canon_sha256":"65847e93bdd39dead4ced6e63c992254f87437387f30a32c565f8f05a5d83e44","abstract_canon_sha256":"4ba8b93f97a2d118dc00c9b79ce113de76a7a3606528848ccd8534b89c933d22"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T01:05:02.645057Z","signature_b64":"NS4WwbZ//QpqXRrQM9coLISC1VK6FgvOpsfiT9paVPNOIO0ywoU90tXdq8b8ya4qPR3VCiU4sCDjxxoxDgHSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6213afb8107c42c5136e849be0ea288df21cca67fdcb3b1d36eb5600fe33b123","last_reissued_at":"2026-06-09T01:05:02.644576Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T01:05:02.644576Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Force-Free and Autonomous Active Brownian Ratchets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Constantin Rein, Klaus Kroy, Martin Kol\\'a\\v{r}, Viktor Holubec","submitted_at":"2023-03-29T13:25:59Z","abstract_excerpt":"Autonomous active Brownian ratchets rectify active Brownian particle motion solely by means of a spatially modulated but stationary activity, without external forces. We argue that such ratcheting requires at least a two-dimensional geometry. The underlying principle is similar to the ratcheting induced by steric obstacles in microswimmer baths: suitably polarized swimmers get channeled, while the others get trapped in low-activity regions until they loose direction. The maximum current is generally reached in the limit of large propulsion speeds, in which the rectification efficiency vanishes"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.16672","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2303.16672/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2303.16672","created_at":"2026-06-09T01:05:02.644633+00:00"},{"alias_kind":"arxiv_version","alias_value":"2303.16672v1","created_at":"2026-06-09T01:05:02.644633+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.16672","created_at":"2026-06-09T01:05:02.644633+00:00"},{"alias_kind":"pith_short_12","alias_value":"MIJ27OAQPRBM","created_at":"2026-06-09T01:05:02.644633+00:00"},{"alias_kind":"pith_short_16","alias_value":"MIJ27OAQPRBMKE3O","created_at":"2026-06-09T01:05:02.644633+00:00"},{"alias_kind":"pith_short_8","alias_value":"MIJ27OAQ","created_at":"2026-06-09T01:05:02.644633+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX","json":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX.json","graph_json":"https://pith.science/api/pith-number/MIJ27OAQPRBMKE3OQSN6B2RIRX/graph.json","events_json":"https://pith.science/api/pith-number/MIJ27OAQPRBMKE3OQSN6B2RIRX/events.json","paper":"https://pith.science/paper/MIJ27OAQ"},"agent_actions":{"view_html":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX","download_json":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX.json","view_paper":"https://pith.science/paper/MIJ27OAQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2303.16672&json=true","fetch_graph":"https://pith.science/api/pith-number/MIJ27OAQPRBMKE3OQSN6B2RIRX/graph.json","fetch_events":"https://pith.science/api/pith-number/MIJ27OAQPRBMKE3OQSN6B2RIRX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX/action/storage_attestation","attest_author":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX/action/author_attestation","sign_citation":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX/action/citation_signature","submit_replication":"https://pith.science/pith/MIJ27OAQPRBMKE3OQSN6B2RIRX/action/replication_record"}},"created_at":"2026-06-09T01:05:02.644633+00:00","updated_at":"2026-06-09T01:05:02.644633+00:00"}