{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DFOEWQAPO2VROE4TXHDDITNWJJ","short_pith_number":"pith:DFOEWQAP","schema_version":"1.0","canonical_sha256":"195c4b400f76ab171393b9c6344db64a423e4a87cc58beb2042af3e1a8395981","source":{"kind":"arxiv","id":"1812.08566","version":2},"attestation_state":"computed","paper":{"title":"The effect of background flow shear on gyrokinetic turbulence in the cold ion limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Ben F. McMillan, Justin Ball, Stephan Brunner","submitted_at":"2018-12-20T13:56:01Z","abstract_excerpt":"The cold ion limit of the local gyrokinetic model is rigorously taken to produce a nonlinear system of fluid equations that includes background flow shear. No fluid closure is required. By considering a simple slab geometry with magnetic drifts, but no magnetic shear, these fluid equations reduce to the Charney-Hasegawa-Mima model in the presence of flow shear. Analytic solutions to this model are found to study the impact of ExB flow shear on the stability of a single Parallel Velocity Gradient (PVG) driven mode. Additionally, the model is used to investigate the effect of background ExB flow"},"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":"1812.08566","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-12-20T13:56:01Z","cross_cats_sorted":[],"title_canon_sha256":"7b8aed3c00e3d2badc728814eb2fd6aa3f40299879688d942856a7feeebddeb1","abstract_canon_sha256":"485b6351ccb9d5f0277232f1b059349e2d979be306564aa5fb36bcf6b19dbb5e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:35.973625Z","signature_b64":"aeK/Ay5LNKGpMkoq0rQkcRZLVDVQlI8MmdxcY/HCXnkAA4UOqyr5fWy1Scpx/lXouWdwxS0DwAIMcmIHtBa1Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"195c4b400f76ab171393b9c6344db64a423e4a87cc58beb2042af3e1a8395981","last_reissued_at":"2026-05-17T23:46:35.973016Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:35.973016Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The effect of background flow shear on gyrokinetic turbulence in the cold ion limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Ben F. McMillan, Justin Ball, Stephan Brunner","submitted_at":"2018-12-20T13:56:01Z","abstract_excerpt":"The cold ion limit of the local gyrokinetic model is rigorously taken to produce a nonlinear system of fluid equations that includes background flow shear. No fluid closure is required. By considering a simple slab geometry with magnetic drifts, but no magnetic shear, these fluid equations reduce to the Charney-Hasegawa-Mima model in the presence of flow shear. Analytic solutions to this model are found to study the impact of ExB flow shear on the stability of a single Parallel Velocity Gradient (PVG) driven mode. Additionally, the model is used to investigate the effect of background ExB flow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.08566","kind":"arxiv","version":2},"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":"1812.08566","created_at":"2026-05-17T23:46:35.973101+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.08566v2","created_at":"2026-05-17T23:46:35.973101+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.08566","created_at":"2026-05-17T23:46:35.973101+00:00"},{"alias_kind":"pith_short_12","alias_value":"DFOEWQAPO2VR","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DFOEWQAPO2VROE4T","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DFOEWQAP","created_at":"2026-05-18T12:32:19.392346+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/DFOEWQAPO2VROE4TXHDDITNWJJ","json":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ.json","graph_json":"https://pith.science/api/pith-number/DFOEWQAPO2VROE4TXHDDITNWJJ/graph.json","events_json":"https://pith.science/api/pith-number/DFOEWQAPO2VROE4TXHDDITNWJJ/events.json","paper":"https://pith.science/paper/DFOEWQAP"},"agent_actions":{"view_html":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ","download_json":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ.json","view_paper":"https://pith.science/paper/DFOEWQAP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.08566&json=true","fetch_graph":"https://pith.science/api/pith-number/DFOEWQAPO2VROE4TXHDDITNWJJ/graph.json","fetch_events":"https://pith.science/api/pith-number/DFOEWQAPO2VROE4TXHDDITNWJJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ/action/storage_attestation","attest_author":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ/action/author_attestation","sign_citation":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ/action/citation_signature","submit_replication":"https://pith.science/pith/DFOEWQAPO2VROE4TXHDDITNWJJ/action/replication_record"}},"created_at":"2026-05-17T23:46:35.973101+00:00","updated_at":"2026-05-17T23:46:35.973101+00:00"}