{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:DZPGRKLZQGUNMOY6YKSLIUEWMR","short_pith_number":"pith:DZPGRKLZ","schema_version":"1.0","canonical_sha256":"1e5e68a97981a8d63b1ec2a4b45096644f581a577f35760097ce0164ec275ddd","source":{"kind":"arxiv","id":"2101.06809","version":5},"attestation_state":"computed","paper":{"title":"Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nlin.AO","physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"A. C. Quillen, A. Peshkov, Esteban Wright, Sonia McGaffigan","submitted_at":"2021-01-18T00:15:07Z","abstract_excerpt":"At high concentration, free swimming nematodes known as vinegar eels ({\\it Turbatrix aceti}), collectively exhibit metachronal waves near a boundary. We find that the frequency of the collective traveling wave is lower than that of the freely swimming organisms. We explore models based on a chain of oscillators with nearest neighbor interactions that inhibit oscillator phase velocity. The phase of each oscillator represents the phase of the motion of the eel's head back and forth about its mean position. A strongly interacting directed chain model mimicking steric repulsion between organisms r"},"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":"2101.06809","kind":"arxiv","version":5},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2021-01-18T00:15:07Z","cross_cats_sorted":["nlin.AO","physics.bio-ph"],"title_canon_sha256":"7db1d1976918a4bf177b7478ae4109e14872e6ea31fe23a54648cedaf85ce63b","abstract_canon_sha256":"3b795570cb8297155288e2707dd737dcd0f5a74157dc583ddb2197de49bcbd9f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:38:59.846301Z","signature_b64":"TcvaJvlujoFNwkEOhpEdcI+hF6bbatUcz4MepuqLkE4HkYh//8OlKwDgksX41G8Nex4Eyrc6vsND5x1qeh/JCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e5e68a97981a8d63b1ec2a4b45096644f581a577f35760097ce0164ec275ddd","last_reissued_at":"2026-07-05T05:38:59.845820Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:38:59.845820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nlin.AO","physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"A. C. Quillen, A. Peshkov, Esteban Wright, Sonia McGaffigan","submitted_at":"2021-01-18T00:15:07Z","abstract_excerpt":"At high concentration, free swimming nematodes known as vinegar eels ({\\it Turbatrix aceti}), collectively exhibit metachronal waves near a boundary. We find that the frequency of the collective traveling wave is lower than that of the freely swimming organisms. We explore models based on a chain of oscillators with nearest neighbor interactions that inhibit oscillator phase velocity. The phase of each oscillator represents the phase of the motion of the eel's head back and forth about its mean position. A strongly interacting directed chain model mimicking steric repulsion between organisms r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.06809","kind":"arxiv","version":5},"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/2101.06809/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":"2101.06809","created_at":"2026-07-05T05:38:59.845886+00:00"},{"alias_kind":"arxiv_version","alias_value":"2101.06809v5","created_at":"2026-07-05T05:38:59.845886+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.06809","created_at":"2026-07-05T05:38:59.845886+00:00"},{"alias_kind":"pith_short_12","alias_value":"DZPGRKLZQGUN","created_at":"2026-07-05T05:38:59.845886+00:00"},{"alias_kind":"pith_short_16","alias_value":"DZPGRKLZQGUNMOY6","created_at":"2026-07-05T05:38:59.845886+00:00"},{"alias_kind":"pith_short_8","alias_value":"DZPGRKLZ","created_at":"2026-07-05T05:38:59.845886+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/DZPGRKLZQGUNMOY6YKSLIUEWMR","json":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR.json","graph_json":"https://pith.science/api/pith-number/DZPGRKLZQGUNMOY6YKSLIUEWMR/graph.json","events_json":"https://pith.science/api/pith-number/DZPGRKLZQGUNMOY6YKSLIUEWMR/events.json","paper":"https://pith.science/paper/DZPGRKLZ"},"agent_actions":{"view_html":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR","download_json":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR.json","view_paper":"https://pith.science/paper/DZPGRKLZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2101.06809&json=true","fetch_graph":"https://pith.science/api/pith-number/DZPGRKLZQGUNMOY6YKSLIUEWMR/graph.json","fetch_events":"https://pith.science/api/pith-number/DZPGRKLZQGUNMOY6YKSLIUEWMR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR/action/storage_attestation","attest_author":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR/action/author_attestation","sign_citation":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR/action/citation_signature","submit_replication":"https://pith.science/pith/DZPGRKLZQGUNMOY6YKSLIUEWMR/action/replication_record"}},"created_at":"2026-07-05T05:38:59.845886+00:00","updated_at":"2026-07-05T05:38:59.845886+00:00"}