{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:DXISHCFDVKD23QC7A743HHB22V","short_pith_number":"pith:DXISHCFD","schema_version":"1.0","canonical_sha256":"1dd12388a3aa87adc05f07f9b39c3ad54615ef512e7ed9cce64bc4b96755029a","source":{"kind":"arxiv","id":"2007.02947","version":1},"attestation_state":"computed","paper":{"title":"Multi-defect Dynamics in Active Nematics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"Boris I. Shraiman, Farzan Vafa, Mark J. Bowick, M. Cristina Marchetti","submitted_at":"2020-07-06T18:00:01Z","abstract_excerpt":"Recent experiments and numerical studies have drawn attention to the dynamics of active nematics. Two-dimensional active nematics flow spontaneously and exhibit spatiotemporal chaotic flows with proliferation of topological defects in the nematic texture. It has been proposed that the dynamics of active nematics can be understood in terms of the dynamics of interacting defects, propelled by active stress. Previous work has derived effective equations of motion for individual defects as quasi-particles moving in the mean field generated by other defects, but an effective theory governing multi-"},"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":"2007.02947","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-07-06T18:00:01Z","cross_cats_sorted":["physics.bio-ph"],"title_canon_sha256":"5f5c404daf2e4da0e6307a7fb644ad1103245c11b3b9d42ceb072585c7fe4f89","abstract_canon_sha256":"7a0d509f7eb2167042281e9e5ed352d8c3fdfafa9ed51c21e238b8b9279233fc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:16:58.519865Z","signature_b64":"bEBehysZr9o8NZ0TpFfXOF4wNWb3jSRp8kPcEzZhRvSjtBTOoX2eL/BRoczlGgUUG6mZV5KDBsIaWSxoBYjkDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1dd12388a3aa87adc05f07f9b39c3ad54615ef512e7ed9cce64bc4b96755029a","last_reissued_at":"2026-07-05T01:16:58.519328Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:16:58.519328Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-defect Dynamics in Active Nematics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"Boris I. Shraiman, Farzan Vafa, Mark J. Bowick, M. Cristina Marchetti","submitted_at":"2020-07-06T18:00:01Z","abstract_excerpt":"Recent experiments and numerical studies have drawn attention to the dynamics of active nematics. Two-dimensional active nematics flow spontaneously and exhibit spatiotemporal chaotic flows with proliferation of topological defects in the nematic texture. It has been proposed that the dynamics of active nematics can be understood in terms of the dynamics of interacting defects, propelled by active stress. Previous work has derived effective equations of motion for individual defects as quasi-particles moving in the mean field generated by other defects, but an effective theory governing multi-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.02947","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/2007.02947/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":"2007.02947","created_at":"2026-07-05T01:16:58.519401+00:00"},{"alias_kind":"arxiv_version","alias_value":"2007.02947v1","created_at":"2026-07-05T01:16:58.519401+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.02947","created_at":"2026-07-05T01:16:58.519401+00:00"},{"alias_kind":"pith_short_12","alias_value":"DXISHCFDVKD2","created_at":"2026-07-05T01:16:58.519401+00:00"},{"alias_kind":"pith_short_16","alias_value":"DXISHCFDVKD23QC7","created_at":"2026-07-05T01:16:58.519401+00:00"},{"alias_kind":"pith_short_8","alias_value":"DXISHCFD","created_at":"2026-07-05T01:16:58.519401+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.19844","citing_title":"Epithelia Realize Nematopolar Topological Defect Structures","ref_index":37,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V","json":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V.json","graph_json":"https://pith.science/api/pith-number/DXISHCFDVKD23QC7A743HHB22V/graph.json","events_json":"https://pith.science/api/pith-number/DXISHCFDVKD23QC7A743HHB22V/events.json","paper":"https://pith.science/paper/DXISHCFD"},"agent_actions":{"view_html":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V","download_json":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V.json","view_paper":"https://pith.science/paper/DXISHCFD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2007.02947&json=true","fetch_graph":"https://pith.science/api/pith-number/DXISHCFDVKD23QC7A743HHB22V/graph.json","fetch_events":"https://pith.science/api/pith-number/DXISHCFDVKD23QC7A743HHB22V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V/action/storage_attestation","attest_author":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V/action/author_attestation","sign_citation":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V/action/citation_signature","submit_replication":"https://pith.science/pith/DXISHCFDVKD23QC7A743HHB22V/action/replication_record"}},"created_at":"2026-07-05T01:16:58.519401+00:00","updated_at":"2026-07-05T01:16:58.519401+00:00"}