{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HIHA5XWM6QXMZNG7UY5IDJFEFX","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":"a4c376d7b77ac86da833b3f4965d48900526be31b785ba8f8fdccb7053f1187a","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-09-20T19:40:22Z","title_canon_sha256":"c72ee0ea2de7504dc2556293579a1aa4ce4a33f3a31dc4df2e24ba21a9a71c66"},"schema_version":"1.0","source":{"id":"1809.07820","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07820","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07820v2","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07820","created_at":"2026-05-17T23:59:14Z"},{"alias_kind":"pith_short_12","alias_value":"HIHA5XWM6QXM","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HIHA5XWM6QXMZNG7","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HIHA5XWM","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:a5d5c19dd10559d1b5f95a0218fabc3be845e0cf7edfe5064037f441b7336f45","target":"graph","created_at":"2026-05-17T23:59:14Z","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"},"paper":{"abstract_excerpt":"In this effort we propose a data-driven learning framework for reduced order modeling of fluid dynamics. Designing accurate and efficient reduced order models for nonlinear fluid dynamic problems is challenging for many practical engineering applications. Classical projection-based model reduction methods generate reduced systems by projecting full-order differential operators into low-dimensional subspaces. However, these techniques usually lead to severe instabilities in the presence of highly nonlinear dynamics, which dramatically deteriorates the accuracy of the reduced-order models. In co","authors_text":"Clayton G. Webster, Guannan Zhang, Xuping Xie","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-09-20T19:40:22Z","title":"Non-intrusive inference reduced order model for fluids using linear multistep neural network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07820","kind":"arxiv","version":2},"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":"sha256:99bb97d3c46d3c1ce718ac21b8c106d52b0a072480f6220f152b3620840fd888","target":"record","created_at":"2026-05-17T23:59:14Z","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":"a4c376d7b77ac86da833b3f4965d48900526be31b785ba8f8fdccb7053f1187a","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-09-20T19:40:22Z","title_canon_sha256":"c72ee0ea2de7504dc2556293579a1aa4ce4a33f3a31dc4df2e24ba21a9a71c66"},"schema_version":"1.0","source":{"id":"1809.07820","kind":"arxiv","version":2}},"canonical_sha256":"3a0e0edeccf42eccb4dfa63a81a4a42dd0f5295b34d5eb2394f7ca4b3ddf9360","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a0e0edeccf42eccb4dfa63a81a4a42dd0f5295b34d5eb2394f7ca4b3ddf9360","first_computed_at":"2026-05-17T23:59:14.261886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:14.261886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4+x1SsiGhpcTe7/qSo91fDcV1AoZYfiaPCp++3EfRnVsATyldpG+fkmA1Ych0A2VXpUInNfpPb/hvp0BKa8yCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:14.262453Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.07820","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99bb97d3c46d3c1ce718ac21b8c106d52b0a072480f6220f152b3620840fd888","sha256:a5d5c19dd10559d1b5f95a0218fabc3be845e0cf7edfe5064037f441b7336f45"],"state_sha256":"5d1d2293e7579ef42436218e5d7991be6b996912679efc78fdccb66d3b09edf8"}