{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:T4OZJRTFAD4IPDP5WZ52B426TY","short_pith_number":"pith:T4OZJRTF","schema_version":"1.0","canonical_sha256":"9f1d94c66500f8878dfdb67ba0f35e9e3ba9e6fe7d37a3d0eab6bc110908e77c","source":{"kind":"arxiv","id":"1602.03643","version":1},"attestation_state":"computed","paper":{"title":"Oasis: a high-level/high-performance open source Navier-Stokes solver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.MS","authors_text":"Kristian Valen-Sendstad, Mikael Mortensen","submitted_at":"2016-02-11T08:56:43Z","abstract_excerpt":"Oasis is a high-level/high-performance finite element Navier-Stokes solver written from scratch in Python using building blocks from the FEniCS project (fenicsproject.org). The solver is unstructured and targets large-scale applications in complex geometries on massively parallel clusters. Oasis utilizes MPI and interfaces, through FEniCS, to the linear algebra backend PETSc. Oasis advocates a high-level, programmable user interface through the creation of highly flexible Python modules for new problems. Through the high-level Python interface the user is placed in complete control of every as"},"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":"1602.03643","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2016-02-11T08:56:43Z","cross_cats_sorted":[],"title_canon_sha256":"ec040cc775c4a5bdc116c24c5c766c7b74421fa3904b0f35188709491318a7a2","abstract_canon_sha256":"5933aca38faf0a61f901a6fb3f2be868f6cf17606b008938a654c829178fb330"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:56.930766Z","signature_b64":"yWH+JeZ1DDyWKjrtpm+sL2PYr2Cy5NA3ixKvRKywVK6WFz5/3D7T8GtfgkEZbyOL5geSGyY+th5Mlr0VbWsjAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f1d94c66500f8878dfdb67ba0f35e9e3ba9e6fe7d37a3d0eab6bc110908e77c","last_reissued_at":"2026-05-18T01:20:56.930332Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:56.930332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Oasis: a high-level/high-performance open source Navier-Stokes solver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.MS","authors_text":"Kristian Valen-Sendstad, Mikael Mortensen","submitted_at":"2016-02-11T08:56:43Z","abstract_excerpt":"Oasis is a high-level/high-performance finite element Navier-Stokes solver written from scratch in Python using building blocks from the FEniCS project (fenicsproject.org). The solver is unstructured and targets large-scale applications in complex geometries on massively parallel clusters. Oasis utilizes MPI and interfaces, through FEniCS, to the linear algebra backend PETSc. Oasis advocates a high-level, programmable user interface through the creation of highly flexible Python modules for new problems. Through the high-level Python interface the user is placed in complete control of every as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03643","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":"1602.03643","created_at":"2026-05-18T01:20:56.930399+00:00"},{"alias_kind":"arxiv_version","alias_value":"1602.03643v1","created_at":"2026-05-18T01:20:56.930399+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03643","created_at":"2026-05-18T01:20:56.930399+00:00"},{"alias_kind":"pith_short_12","alias_value":"T4OZJRTFAD4I","created_at":"2026-05-18T12:30:44.179134+00:00"},{"alias_kind":"pith_short_16","alias_value":"T4OZJRTFAD4IPDP5","created_at":"2026-05-18T12:30:44.179134+00:00"},{"alias_kind":"pith_short_8","alias_value":"T4OZJRTF","created_at":"2026-05-18T12:30:44.179134+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/T4OZJRTFAD4IPDP5WZ52B426TY","json":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY.json","graph_json":"https://pith.science/api/pith-number/T4OZJRTFAD4IPDP5WZ52B426TY/graph.json","events_json":"https://pith.science/api/pith-number/T4OZJRTFAD4IPDP5WZ52B426TY/events.json","paper":"https://pith.science/paper/T4OZJRTF"},"agent_actions":{"view_html":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY","download_json":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY.json","view_paper":"https://pith.science/paper/T4OZJRTF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1602.03643&json=true","fetch_graph":"https://pith.science/api/pith-number/T4OZJRTFAD4IPDP5WZ52B426TY/graph.json","fetch_events":"https://pith.science/api/pith-number/T4OZJRTFAD4IPDP5WZ52B426TY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY/action/storage_attestation","attest_author":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY/action/author_attestation","sign_citation":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY/action/citation_signature","submit_replication":"https://pith.science/pith/T4OZJRTFAD4IPDP5WZ52B426TY/action/replication_record"}},"created_at":"2026-05-18T01:20:56.930399+00:00","updated_at":"2026-05-18T01:20:56.930399+00:00"}