{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GFDDZ6QP7M4GQDZ34HWY24GZHM","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":"8506b233f19fa7fe80224f4384277271c6f26a10767c54415508eea4c2219de8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-13T08:58:49Z","title_canon_sha256":"df1226828dc7f951febac21d71338ca26d47ac33ae29423628e4e3b6d592feb5"},"schema_version":"1.0","source":{"id":"1405.3071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.3071","created_at":"2026-05-18T01:43:14Z"},{"alias_kind":"arxiv_version","alias_value":"1405.3071v1","created_at":"2026-05-18T01:43:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.3071","created_at":"2026-05-18T01:43:14Z"},{"alias_kind":"pith_short_12","alias_value":"GFDDZ6QP7M4G","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GFDDZ6QP7M4GQDZ3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GFDDZ6QP","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:877be3c3de82f9ba891758f3642f1fba62468f3ab696c75d95129374c897f870","target":"graph","created_at":"2026-05-18T01:43:14Z","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":"We consider the generation of magnetic activity --- dynamo waves --- in the astrophysical limit of very large magnetic Reynolds number. We consider kinematic dynamo action for a system consisting of helical flow and large-scale shear. We demonstrate that large-scale dynamo waves persist at high $Rm$ if the helical flow is characterised by a narrow band of spatial scales and the shear is large enough. However for a wide band of scales the dynamo becomes small-scale with a further increase of $Rm$, with dynamo waves re-emerging only if the shear is then increased. We show that at high $Rm$ the k","authors_text":"Fausto Cattaneo, Steven Tobias","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-13T08:58:49Z","title":"On Large-Scale Dynamo Action at High Magnetic Reynolds Number"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.3071","kind":"arxiv","version":1},"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":"sha256:184763180ee9f2dc3bfdcc22990f5a616ba493886c89d38002691269f5742189","target":"record","created_at":"2026-05-18T01:43:14Z","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":"8506b233f19fa7fe80224f4384277271c6f26a10767c54415508eea4c2219de8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-13T08:58:49Z","title_canon_sha256":"df1226828dc7f951febac21d71338ca26d47ac33ae29423628e4e3b6d592feb5"},"schema_version":"1.0","source":{"id":"1405.3071","kind":"arxiv","version":1}},"canonical_sha256":"31463cfa0ffb38680f3be1ed8d70d93b13e71b9871b43daa85338fadbc27e5f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31463cfa0ffb38680f3be1ed8d70d93b13e71b9871b43daa85338fadbc27e5f6","first_computed_at":"2026-05-18T01:43:14.704120Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:14.704120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nmbMVmxr3V80WeK37mEqUtdACxzd0CnxnppgdN3qknNqMWT5GafGDHWlNwOQelqAIADNXXODHoGX8G0dvCM5BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:14.704774Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.3071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:184763180ee9f2dc3bfdcc22990f5a616ba493886c89d38002691269f5742189","sha256:877be3c3de82f9ba891758f3642f1fba62468f3ab696c75d95129374c897f870"],"state_sha256":"0a0f02866bbc620eba40fdc2ffe261ab50501dba9871bb89adb0bee24b274403"}