{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:T2U5B5TUEHTCLLK2H2A6UWBFXG","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":"51814f62e40f6c3141331037e17889410539d00ecc4b021aa2dfbab05e994d9e","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2020-03-26T17:23:17Z","title_canon_sha256":"87444057ae541b36ed6d4ba12252af25dade3573a232f4dec55f3b82a9ba283c"},"schema_version":"1.0","source":{"id":"2003.12046","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.12046","created_at":"2026-07-05T02:55:29Z"},{"alias_kind":"arxiv_version","alias_value":"2003.12046v5","created_at":"2026-07-05T02:55:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.12046","created_at":"2026-07-05T02:55:29Z"},{"alias_kind":"pith_short_12","alias_value":"T2U5B5TUEHTC","created_at":"2026-07-05T02:55:29Z"},{"alias_kind":"pith_short_16","alias_value":"T2U5B5TUEHTCLLK2","created_at":"2026-07-05T02:55:29Z"},{"alias_kind":"pith_short_8","alias_value":"T2U5B5TU","created_at":"2026-07-05T02:55:29Z"}],"graph_snapshots":[{"event_id":"sha256:7fce78c5d130c7591cb237aec7e2928b459d5efd07e8dd3a14170740f4a44823","target":"graph","created_at":"2026-07-05T02:55:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2003.12046/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper introduces a sharp interface method to simulate fluid-structure interaction (FSI) involving rigid bodies immersed in viscous incompressible fluids. The capabilities of this methodology are demonstrated for a range of benchmark test cases along with large-scale models of biomedical FSI. The numerical approach developed herein, which we refer to as an immersed Lagrangian-Eulerian method, integrates aspects of partitioned and immersed FSI formulations by solving separate momentum equations for the fluid and solid subdomains, as in a partitioned formulation, while also using non-conform","authors_text":"Amneet P.S. Bhalla, Boyce E. Griffith, Brent A. Craven, Ebrahim M. Kolahdouz, Lawrence N. Scotten","cross_cats":["cs.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2020-03-26T17:23:17Z","title":"A sharp interface Lagrangian-Eulerian method for rigid-body fluid-structure interaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.12046","kind":"arxiv","version":5},"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":"sha256:4708aba6c19e2a883e29405548be573f31c71741c8c6d6dd1fce93c35a358856","target":"record","created_at":"2026-07-05T02:55:29Z","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":"51814f62e40f6c3141331037e17889410539d00ecc4b021aa2dfbab05e994d9e","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2020-03-26T17:23:17Z","title_canon_sha256":"87444057ae541b36ed6d4ba12252af25dade3573a232f4dec55f3b82a9ba283c"},"schema_version":"1.0","source":{"id":"2003.12046","kind":"arxiv","version":5}},"canonical_sha256":"9ea9d0f67421e625ad5a3e81ea5825b98f3eefc3af446d08ae66ce408a208fb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ea9d0f67421e625ad5a3e81ea5825b98f3eefc3af446d08ae66ce408a208fb8","first_computed_at":"2026-07-05T02:55:29.295230Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:55:29.295230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d5HdjxwNneLrIg5vPd/9LXbl9Y65o1Q4KZCNKLDctpucjy8fLIoYabJwq2Vj4ObivyHs2MNSHgeax+vJZSvuAw==","signature_status":"signed_v1","signed_at":"2026-07-05T02:55:29.295719Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.12046","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4708aba6c19e2a883e29405548be573f31c71741c8c6d6dd1fce93c35a358856","sha256:7fce78c5d130c7591cb237aec7e2928b459d5efd07e8dd3a14170740f4a44823"],"state_sha256":"00cec01880a64c7149baf9bab05edca260071d4caf0c22f80b60172aaef6a706"}