{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:HBXSPS3Y6VB235IQHXZ7PNCTLM","short_pith_number":"pith:HBXSPS3Y","schema_version":"1.0","canonical_sha256":"386f27cb78f543adf5103df3f7b4535b1317d2b0840378b62bcc1627cca96885","source":{"kind":"arxiv","id":"2005.01164","version":2},"attestation_state":"computed","paper":{"title":"Role of friction in multidefect ordering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Julia M. Yeomans, Kristian Thijssen, Mehrana R. Nejad","submitted_at":"2020-05-03T18:49:56Z","abstract_excerpt":"We use continuum simulations to study the impact of friction on the ordering of defects in an active nematic. Even in a frictionless system, +1/2 defects tend to align side-by-side and orient antiparallel reflecting their propensity to form, and circulate with, flow vortices. Increasing friction enhances the effectiveness of the defect-defect interactions, and defects form dynamically evolving, large scale, positionally and orientationally-ordered structures which can be explained as a competition between hexagonal packing, preferred by the -1/2 defects, and rectangular packing preferred by th"},"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":"2005.01164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-05-03T18:49:56Z","cross_cats_sorted":[],"title_canon_sha256":"cd9382adcd0cec2c1903e6e0389e3697f97920211f8e5dc6244a67981b5c822f","abstract_canon_sha256":"b6a667a734dc464d6efc2c0e0e1ef0f0db1a08ee89cfb963d0d2bac7a772f207"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:53:50.090487Z","signature_b64":"Nj7nhGvjxdOtOAPm4Cu09HvMt5j0dhvkrhOqmAjCokKXMExlSY1HsNDxjGekNg3+aHugRetlkhu5q7aXqj1qDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"386f27cb78f543adf5103df3f7b4535b1317d2b0840378b62bcc1627cca96885","last_reissued_at":"2026-07-05T01:53:50.090053Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:53:50.090053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Role of friction in multidefect ordering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Julia M. Yeomans, Kristian Thijssen, Mehrana R. Nejad","submitted_at":"2020-05-03T18:49:56Z","abstract_excerpt":"We use continuum simulations to study the impact of friction on the ordering of defects in an active nematic. Even in a frictionless system, +1/2 defects tend to align side-by-side and orient antiparallel reflecting their propensity to form, and circulate with, flow vortices. Increasing friction enhances the effectiveness of the defect-defect interactions, and defects form dynamically evolving, large scale, positionally and orientationally-ordered structures which can be explained as a competition between hexagonal packing, preferred by the -1/2 defects, and rectangular packing preferred by th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.01164","kind":"arxiv","version":2},"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/2005.01164/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":"2005.01164","created_at":"2026-07-05T01:53:50.090109+00:00"},{"alias_kind":"arxiv_version","alias_value":"2005.01164v2","created_at":"2026-07-05T01:53:50.090109+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.01164","created_at":"2026-07-05T01:53:50.090109+00:00"},{"alias_kind":"pith_short_12","alias_value":"HBXSPS3Y6VB2","created_at":"2026-07-05T01:53:50.090109+00:00"},{"alias_kind":"pith_short_16","alias_value":"HBXSPS3Y6VB235IQ","created_at":"2026-07-05T01:53:50.090109+00:00"},{"alias_kind":"pith_short_8","alias_value":"HBXSPS3Y","created_at":"2026-07-05T01:53:50.090109+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/HBXSPS3Y6VB235IQHXZ7PNCTLM","json":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM.json","graph_json":"https://pith.science/api/pith-number/HBXSPS3Y6VB235IQHXZ7PNCTLM/graph.json","events_json":"https://pith.science/api/pith-number/HBXSPS3Y6VB235IQHXZ7PNCTLM/events.json","paper":"https://pith.science/paper/HBXSPS3Y"},"agent_actions":{"view_html":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM","download_json":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM.json","view_paper":"https://pith.science/paper/HBXSPS3Y","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2005.01164&json=true","fetch_graph":"https://pith.science/api/pith-number/HBXSPS3Y6VB235IQHXZ7PNCTLM/graph.json","fetch_events":"https://pith.science/api/pith-number/HBXSPS3Y6VB235IQHXZ7PNCTLM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM/action/storage_attestation","attest_author":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM/action/author_attestation","sign_citation":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM/action/citation_signature","submit_replication":"https://pith.science/pith/HBXSPS3Y6VB235IQHXZ7PNCTLM/action/replication_record"}},"created_at":"2026-07-05T01:53:50.090109+00:00","updated_at":"2026-07-05T01:53:50.090109+00:00"}