{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:GI2OORL6ZJU645MCH56WMG3WBL","short_pith_number":"pith:GI2OORL6","schema_version":"1.0","canonical_sha256":"3234e7457eca69ee75823f7d661b760ad5a8af30efa63ca208047cd001065fbc","source":{"kind":"arxiv","id":"1804.02123","version":1},"attestation_state":"computed","paper":{"title":"A novel approach to rigid spheroid models in viscous flows using operator splitting methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.comp-ph","authors_text":"Benjamin Tapley, Brynjulf Owren, Elena Celledoni, Helge I. Andersson","submitted_at":"2018-04-06T03:45:29Z","abstract_excerpt":"Calculating cost-effective solutions to particle dynamics in viscous flows is an important problem in many areas of industry and nature. We implement a second-order symmetric splitting method on the governing equations for a rigid spheroidal particle model with torques, drag and gravity. The method splits the operators into a vector field that is conservative and one that takes into account the forces of the fluid. Error analysis and numerical tests are performed on perturbed and stiff particle-fluid systems. For the perturbed case, the splitting method greatly improves the solution accuracy, "},"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":"1804.02123","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-04-06T03:45:29Z","cross_cats_sorted":[],"title_canon_sha256":"228884c0a21d3ebd99fe5412c2367be6df5cc3288d0b8842532f4057c4b9b8c2","abstract_canon_sha256":"3b1bbeb07f272c5719e6375f8b2970590723e3b79ca21b5f791050e4e7ddcd82"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:05.757270Z","signature_b64":"oeliS35MFjfTBS8MWVOqBdrxHzbR20ARD/b4wncMQceuas7JxBfirvFIhD4sv8AuZIFvQwI9dKWHuFBacW+5Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3234e7457eca69ee75823f7d661b760ad5a8af30efa63ca208047cd001065fbc","last_reissued_at":"2026-05-18T00:19:05.756755Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:05.756755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A novel approach to rigid spheroid models in viscous flows using operator splitting methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.comp-ph","authors_text":"Benjamin Tapley, Brynjulf Owren, Elena Celledoni, Helge I. Andersson","submitted_at":"2018-04-06T03:45:29Z","abstract_excerpt":"Calculating cost-effective solutions to particle dynamics in viscous flows is an important problem in many areas of industry and nature. We implement a second-order symmetric splitting method on the governing equations for a rigid spheroidal particle model with torques, drag and gravity. The method splits the operators into a vector field that is conservative and one that takes into account the forces of the fluid. Error analysis and numerical tests are performed on perturbed and stiff particle-fluid systems. For the perturbed case, the splitting method greatly improves the solution accuracy, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02123","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":""},"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":"1804.02123","created_at":"2026-05-18T00:19:05.756823+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.02123v1","created_at":"2026-05-18T00:19:05.756823+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02123","created_at":"2026-05-18T00:19:05.756823+00:00"},{"alias_kind":"pith_short_12","alias_value":"GI2OORL6ZJU6","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_16","alias_value":"GI2OORL6ZJU645MC","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_8","alias_value":"GI2OORL6","created_at":"2026-05-18T12:32:25.280505+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/GI2OORL6ZJU645MCH56WMG3WBL","json":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL.json","graph_json":"https://pith.science/api/pith-number/GI2OORL6ZJU645MCH56WMG3WBL/graph.json","events_json":"https://pith.science/api/pith-number/GI2OORL6ZJU645MCH56WMG3WBL/events.json","paper":"https://pith.science/paper/GI2OORL6"},"agent_actions":{"view_html":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL","download_json":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL.json","view_paper":"https://pith.science/paper/GI2OORL6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.02123&json=true","fetch_graph":"https://pith.science/api/pith-number/GI2OORL6ZJU645MCH56WMG3WBL/graph.json","fetch_events":"https://pith.science/api/pith-number/GI2OORL6ZJU645MCH56WMG3WBL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL/action/storage_attestation","attest_author":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL/action/author_attestation","sign_citation":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL/action/citation_signature","submit_replication":"https://pith.science/pith/GI2OORL6ZJU645MCH56WMG3WBL/action/replication_record"}},"created_at":"2026-05-18T00:19:05.756823+00:00","updated_at":"2026-05-18T00:19:05.756823+00:00"}