{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:B3WVKWFFC3EOJM5QVUE762DBK6","short_pith_number":"pith:B3WVKWFF","schema_version":"1.0","canonical_sha256":"0eed5558a516c8e4b3b0ad09ff686157a70e94a18fabf3139c94633b2d2dcd1a","source":{"kind":"arxiv","id":"2201.02104","version":6},"attestation_state":"computed","paper":{"title":"Temporally sparse data assimilation for the small-scale reconstruction of turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Chenyue Xie, Jianchun Wang, Yunpeng Wang, Zelong Yuan","submitted_at":"2022-01-06T15:37:27Z","abstract_excerpt":"Previous works have shown that the small-scale information of incompressible homogeneous isotropic turbulence (HIT) is fully recoverable as long as sufficient large-scale structures are continuously enforced through temporally continuous data assimilation (TCDA). In the current work, we show that the assimilation time step can be relaxed to values about 1 $\\sim$ 2 orders larger than that for TCDA, using a temporally sparse data assimilation (TSDA) strategy, while the accuracy is still maintained or even slightly better in the presence of non-negligible large-scale errors. The one-step data ass"},"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":"2201.02104","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2022-01-06T15:37:27Z","cross_cats_sorted":[],"title_canon_sha256":"c56d21dffa06d7aafb1c46bb77444763a60b562696f251aaff72a72aa5977e05","abstract_canon_sha256":"0fced0b2672543b15a414851e219b9d9de9b47afbf1d5ae4fd82748444bbb4f8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:28.569610Z","signature_b64":"GAui4oJqlPRORiONbXutLmudm7CgxGUpUICFOb6bOvTQmI/IclIs44lvWSZiMm7BYzKWBasnQe5tLfvfagytBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0eed5558a516c8e4b3b0ad09ff686157a70e94a18fabf3139c94633b2d2dcd1a","last_reissued_at":"2026-07-05T04:33:28.569071Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:28.569071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Temporally sparse data assimilation for the small-scale reconstruction of turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Chenyue Xie, Jianchun Wang, Yunpeng Wang, Zelong Yuan","submitted_at":"2022-01-06T15:37:27Z","abstract_excerpt":"Previous works have shown that the small-scale information of incompressible homogeneous isotropic turbulence (HIT) is fully recoverable as long as sufficient large-scale structures are continuously enforced through temporally continuous data assimilation (TCDA). In the current work, we show that the assimilation time step can be relaxed to values about 1 $\\sim$ 2 orders larger than that for TCDA, using a temporally sparse data assimilation (TSDA) strategy, while the accuracy is still maintained or even slightly better in the presence of non-negligible large-scale errors. The one-step data ass"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02104","kind":"arxiv","version":6},"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/2201.02104/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":"2201.02104","created_at":"2026-07-05T04:33:28.569151+00:00"},{"alias_kind":"arxiv_version","alias_value":"2201.02104v6","created_at":"2026-07-05T04:33:28.569151+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02104","created_at":"2026-07-05T04:33:28.569151+00:00"},{"alias_kind":"pith_short_12","alias_value":"B3WVKWFFC3EO","created_at":"2026-07-05T04:33:28.569151+00:00"},{"alias_kind":"pith_short_16","alias_value":"B3WVKWFFC3EOJM5Q","created_at":"2026-07-05T04:33:28.569151+00:00"},{"alias_kind":"pith_short_8","alias_value":"B3WVKWFF","created_at":"2026-07-05T04:33:28.569151+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/B3WVKWFFC3EOJM5QVUE762DBK6","json":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6.json","graph_json":"https://pith.science/api/pith-number/B3WVKWFFC3EOJM5QVUE762DBK6/graph.json","events_json":"https://pith.science/api/pith-number/B3WVKWFFC3EOJM5QVUE762DBK6/events.json","paper":"https://pith.science/paper/B3WVKWFF"},"agent_actions":{"view_html":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6","download_json":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6.json","view_paper":"https://pith.science/paper/B3WVKWFF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2201.02104&json=true","fetch_graph":"https://pith.science/api/pith-number/B3WVKWFFC3EOJM5QVUE762DBK6/graph.json","fetch_events":"https://pith.science/api/pith-number/B3WVKWFFC3EOJM5QVUE762DBK6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6/action/storage_attestation","attest_author":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6/action/author_attestation","sign_citation":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6/action/citation_signature","submit_replication":"https://pith.science/pith/B3WVKWFFC3EOJM5QVUE762DBK6/action/replication_record"}},"created_at":"2026-07-05T04:33:28.569151+00:00","updated_at":"2026-07-05T04:33:28.569151+00:00"}