{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:MZAQYREUGCCIGKOMUUFART5AKM","short_pith_number":"pith:MZAQYREU","schema_version":"1.0","canonical_sha256":"66410c449430848329cca50a08cfa05314007134a9f2241d2bea29d634e787cf","source":{"kind":"arxiv","id":"1811.04240","version":1},"attestation_state":"computed","paper":{"title":"From three-dimensional to quasi-two-dimensional: Transient growth in magnetohydrodynamic duct flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Alban Poth\\'erat, Gregory J. Sheard, Oliver G. W. Cassells, Tony Vo","submitted_at":"2018-11-10T12:06:03Z","abstract_excerpt":"This study seeks to elucidate the linear transient growth mechanisms in a uniform duct with square cross-section applicable to flows of electrically conducting fluids under the influence of an external magnetic field. A particular focus is given to the question of whether at high magnetic fields purely two-dimensional mechanisms exist, and whether these can be described by a computationally inexpensive quasi-two-dimensional model. Two Reynolds numbers of $5000$ and $15\\,000$ and an extensive range of Hartmann numbers $0 \\leq Ha \\leq 800$ were investigated. Three broad regimes are identified in"},"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":"1811.04240","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-11-10T12:06:03Z","cross_cats_sorted":[],"title_canon_sha256":"cf37cacc2cd62de19b96e04ddbb88cb2088f74bbf2e290e2365aa57b1fa06908","abstract_canon_sha256":"42520ea9cf2e52847f6104067efd7727ef7639f8115e94906906c0f8a729165c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:19.169267Z","signature_b64":"AXX77qEgO7hQybAFDJi/tzh+oTuOb2hjk7z46xkpRlZdq8PoVfoLqC20ya0TyNy6af3R6ry93NVE+ByfjQfYDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66410c449430848329cca50a08cfa05314007134a9f2241d2bea29d634e787cf","last_reissued_at":"2026-05-17T23:55:19.168684Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:19.168684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"From three-dimensional to quasi-two-dimensional: Transient growth in magnetohydrodynamic duct flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Alban Poth\\'erat, Gregory J. Sheard, Oliver G. W. Cassells, Tony Vo","submitted_at":"2018-11-10T12:06:03Z","abstract_excerpt":"This study seeks to elucidate the linear transient growth mechanisms in a uniform duct with square cross-section applicable to flows of electrically conducting fluids under the influence of an external magnetic field. A particular focus is given to the question of whether at high magnetic fields purely two-dimensional mechanisms exist, and whether these can be described by a computationally inexpensive quasi-two-dimensional model. Two Reynolds numbers of $5000$ and $15\\,000$ and an extensive range of Hartmann numbers $0 \\leq Ha \\leq 800$ were investigated. Three broad regimes are identified in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04240","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":"1811.04240","created_at":"2026-05-17T23:55:19.168773+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.04240v1","created_at":"2026-05-17T23:55:19.168773+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04240","created_at":"2026-05-17T23:55:19.168773+00:00"},{"alias_kind":"pith_short_12","alias_value":"MZAQYREUGCCI","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_16","alias_value":"MZAQYREUGCCIGKOM","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_8","alias_value":"MZAQYREU","created_at":"2026-05-18T12:32:40.477152+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/MZAQYREUGCCIGKOMUUFART5AKM","json":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM.json","graph_json":"https://pith.science/api/pith-number/MZAQYREUGCCIGKOMUUFART5AKM/graph.json","events_json":"https://pith.science/api/pith-number/MZAQYREUGCCIGKOMUUFART5AKM/events.json","paper":"https://pith.science/paper/MZAQYREU"},"agent_actions":{"view_html":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM","download_json":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM.json","view_paper":"https://pith.science/paper/MZAQYREU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.04240&json=true","fetch_graph":"https://pith.science/api/pith-number/MZAQYREUGCCIGKOMUUFART5AKM/graph.json","fetch_events":"https://pith.science/api/pith-number/MZAQYREUGCCIGKOMUUFART5AKM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM/action/storage_attestation","attest_author":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM/action/author_attestation","sign_citation":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM/action/citation_signature","submit_replication":"https://pith.science/pith/MZAQYREUGCCIGKOMUUFART5AKM/action/replication_record"}},"created_at":"2026-05-17T23:55:19.168773+00:00","updated_at":"2026-05-17T23:55:19.168773+00:00"}