{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NIB6JX2NB5OR4JVOSJDACO5CYY","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":"38aad89288eb8363731a67e2b9c568aa99b6f3eb24cfe089d662dc76621aaadb","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-03-23T15:49:44Z","title_canon_sha256":"4e5bc5fc36e13a98fd5d7625a5f80637c358f10c1386025e1109ae1a946eb4e8"},"schema_version":"1.0","source":{"id":"1203.5274","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.5274","created_at":"2026-05-18T03:59:26Z"},{"alias_kind":"arxiv_version","alias_value":"1203.5274v1","created_at":"2026-05-18T03:59:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.5274","created_at":"2026-05-18T03:59:26Z"},{"alias_kind":"pith_short_12","alias_value":"NIB6JX2NB5OR","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NIB6JX2NB5OR4JVO","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NIB6JX2N","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:657d4d9159aa4aa86184ead64dd822164f2b8f2ed61f477029940b1b6aa72d33","target":"graph","created_at":"2026-05-18T03:59:26Z","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":"We theoretically predict and experimentally demonstrate that several different particle species can be separated from each other by means of a ratchet device, consisting of periodically arranged triangular (ratchet) shaped obstacles. We propose an explicit algorithm for suitably tailoring the externally applied, time-dependent voltage protocol so that one or several, arbitrarily selected particle species are forced to migrate oppositely to all the remaining species. As an example we present numerical simulations for a mixture of five species, labelled according to their increasing size, so tha","authors_text":"Dario Anselmetti, Jan Regtmeier, Lukas Bogunovic, Peter Reimann, Ralf Eichhorn","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-03-23T15:49:44Z","title":"Particle sorting by a structured microfluidic ratchet device with tunable selectivity: Theory and Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.5274","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":"sha256:71714a712fd9d58308da4ffcf05acd63de4a27236e78c15184c619064e1f46a0","target":"record","created_at":"2026-05-18T03:59:26Z","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":"38aad89288eb8363731a67e2b9c568aa99b6f3eb24cfe089d662dc76621aaadb","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-03-23T15:49:44Z","title_canon_sha256":"4e5bc5fc36e13a98fd5d7625a5f80637c358f10c1386025e1109ae1a946eb4e8"},"schema_version":"1.0","source":{"id":"1203.5274","kind":"arxiv","version":1}},"canonical_sha256":"6a03e4df4d0f5d1e26ae9246013ba2c616bb5e4dcbc49086be93f75ebb90a53b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a03e4df4d0f5d1e26ae9246013ba2c616bb5e4dcbc49086be93f75ebb90a53b","first_computed_at":"2026-05-18T03:59:26.392272Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:59:26.392272Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l+Rl8ebaOmliKGlEtitTe6DUKsrhVSLlmwZQAQKQmX4Yu4dwnQm94qV4xdtMsxtxRhwPzaob+EMF3H4nnSreCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:59:26.393053Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.5274","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71714a712fd9d58308da4ffcf05acd63de4a27236e78c15184c619064e1f46a0","sha256:657d4d9159aa4aa86184ead64dd822164f2b8f2ed61f477029940b1b6aa72d33"],"state_sha256":"a0b62f1014f803aca1d201859026f86e60b1532f8119ea5f5f2bb41c93871003"}