{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:736ZQ4FY45RKITSZRUAX5LVXYC","short_pith_number":"pith:736ZQ4FY","canonical_record":{"source":{"id":"1105.5785","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-29T13:07:32Z","cross_cats_sorted":[],"title_canon_sha256":"42b525d24cc7e061b7f0985377d86e796aa5bc13e0c583df1448596b464f0c90","abstract_canon_sha256":"0c757ea42c7675bd7fa83d2d265259ab9f6e113e4da0a4d613c5e0b02781f4eb"},"schema_version":"1.0"},"canonical_sha256":"fefd9870b8e762a44e598d017eaeb7c095e2a0d9e1c84cbbda39e70ef1370b74","source":{"kind":"arxiv","id":"1105.5785","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.5785","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1105.5785v2","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.5785","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"736ZQ4FY45RK","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"736ZQ4FY45RKITSZ","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"736ZQ4FY","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:736ZQ4FY45RKITSZRUAX5LVXYC","target":"record","payload":{"canonical_record":{"source":{"id":"1105.5785","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-29T13:07:32Z","cross_cats_sorted":[],"title_canon_sha256":"42b525d24cc7e061b7f0985377d86e796aa5bc13e0c583df1448596b464f0c90","abstract_canon_sha256":"0c757ea42c7675bd7fa83d2d265259ab9f6e113e4da0a4d613c5e0b02781f4eb"},"schema_version":"1.0"},"canonical_sha256":"fefd9870b8e762a44e598d017eaeb7c095e2a0d9e1c84cbbda39e70ef1370b74","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:59:25.517346Z","signature_b64":"gq2Cvc2/nGHouYMfnH3nztNtoZ3MaAbr3gGPqN+GpwBXOga/S0yMEY5HbGoFCh33x8bAFc4hLnvcBX6AEqQLDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fefd9870b8e762a44e598d017eaeb7c095e2a0d9e1c84cbbda39e70ef1370b74","last_reissued_at":"2026-05-18T03:59:25.516588Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:59:25.516588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.5785","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vvo/28guKD14Qt2sqx0aCnPIk7KVks7vDdrrrUAsC5vKzpgs7ira27ZRS7yZk9PCM/WnboVZxQ0rEeVhMuz3DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:24:07.610873Z"},"content_sha256":"d49f8ed500b16cc066b036bafecf9dd30fcb9a80873dc4759695b5239ec90d99","schema_version":"1.0","event_id":"sha256:d49f8ed500b16cc066b036bafecf9dd30fcb9a80873dc4759695b5239ec90d99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:736ZQ4FY45RKITSZRUAX5LVXYC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pumping velocity in homogeneous helical turbulence with shear","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"(2) University of Helsinki, 3), (3) NORDITA, 4) ((1) Ben-Gurion Univ., (4) Stockholm Univ.), A. Brandenburg (3, I. Rogachevskii (1), N. Kleeorin (1), P. K\\\"apyl\\\"a (2","submitted_at":"2011-05-29T13:07:32Z","abstract_excerpt":"Using different analytical methods (the quasi-linear approach, the path-integral technique and tau-relaxation approximation) we develop a comprehensive mean-field theory for a pumping effect of the mean magnetic field in homogeneous non-rotating helical turbulence with imposed large-scale shear. The effective pumping velocity is proportional to the product of alpha effect and large-scale vorticity associated with the shear, and causes a separation of the toroidal and poloidal components of the mean magnetic field along the direction of the mean vorticity. We also perform direct numerical simul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5785","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6nHH3mHqZiraFRdFzbuQMvL4fNDjEFGO3cdbCi1yZ12VIqvee0gj5/Gv76UX7L60fS9Jwj99GSGj2B+gB9tGDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:24:07.611221Z"},"content_sha256":"e7fdd0fb82a54f23e6791293c20141a1739f71fd68b3971ade4820e925cd0665","schema_version":"1.0","event_id":"sha256:e7fdd0fb82a54f23e6791293c20141a1739f71fd68b3971ade4820e925cd0665"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/736ZQ4FY45RKITSZRUAX5LVXYC/bundle.json","state_url":"https://pith.science/pith/736ZQ4FY45RKITSZRUAX5LVXYC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/736ZQ4FY45RKITSZRUAX5LVXYC/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-06T15:24:07Z","links":{"resolver":"https://pith.science/pith/736ZQ4FY45RKITSZRUAX5LVXYC","bundle":"https://pith.science/pith/736ZQ4FY45RKITSZRUAX5LVXYC/bundle.json","state":"https://pith.science/pith/736ZQ4FY45RKITSZRUAX5LVXYC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/736ZQ4FY45RKITSZRUAX5LVXYC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:736ZQ4FY45RKITSZRUAX5LVXYC","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":"0c757ea42c7675bd7fa83d2d265259ab9f6e113e4da0a4d613c5e0b02781f4eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-29T13:07:32Z","title_canon_sha256":"42b525d24cc7e061b7f0985377d86e796aa5bc13e0c583df1448596b464f0c90"},"schema_version":"1.0","source":{"id":"1105.5785","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.5785","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1105.5785v2","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.5785","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"736ZQ4FY45RK","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"736ZQ4FY45RKITSZ","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"736ZQ4FY","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:e7fdd0fb82a54f23e6791293c20141a1739f71fd68b3971ade4820e925cd0665","target":"graph","created_at":"2026-05-18T03:59:25Z","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":"Using different analytical methods (the quasi-linear approach, the path-integral technique and tau-relaxation approximation) we develop a comprehensive mean-field theory for a pumping effect of the mean magnetic field in homogeneous non-rotating helical turbulence with imposed large-scale shear. The effective pumping velocity is proportional to the product of alpha effect and large-scale vorticity associated with the shear, and causes a separation of the toroidal and poloidal components of the mean magnetic field along the direction of the mean vorticity. We also perform direct numerical simul","authors_text":"(2) University of Helsinki, 3), (3) NORDITA, 4) ((1) Ben-Gurion Univ., (4) Stockholm Univ.), A. Brandenburg (3, I. Rogachevskii (1), N. Kleeorin (1), P. K\\\"apyl\\\"a (2","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-29T13:07:32Z","title":"Pumping velocity in homogeneous helical turbulence with shear"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5785","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:d49f8ed500b16cc066b036bafecf9dd30fcb9a80873dc4759695b5239ec90d99","target":"record","created_at":"2026-05-18T03:59:25Z","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":"0c757ea42c7675bd7fa83d2d265259ab9f6e113e4da0a4d613c5e0b02781f4eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-05-29T13:07:32Z","title_canon_sha256":"42b525d24cc7e061b7f0985377d86e796aa5bc13e0c583df1448596b464f0c90"},"schema_version":"1.0","source":{"id":"1105.5785","kind":"arxiv","version":2}},"canonical_sha256":"fefd9870b8e762a44e598d017eaeb7c095e2a0d9e1c84cbbda39e70ef1370b74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fefd9870b8e762a44e598d017eaeb7c095e2a0d9e1c84cbbda39e70ef1370b74","first_computed_at":"2026-05-18T03:59:25.516588Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:59:25.516588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gq2Cvc2/nGHouYMfnH3nztNtoZ3MaAbr3gGPqN+GpwBXOga/S0yMEY5HbGoFCh33x8bAFc4hLnvcBX6AEqQLDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:59:25.517346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.5785","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d49f8ed500b16cc066b036bafecf9dd30fcb9a80873dc4759695b5239ec90d99","sha256:e7fdd0fb82a54f23e6791293c20141a1739f71fd68b3971ade4820e925cd0665"],"state_sha256":"d2f56b4c0703a350d3a47c44a1af089797e71b6298b69e90123319c44df853e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sqvU8VjJ29v/Jc+1VDZd72Bo9tDip3541PJ+msfVsNwH3A1PItxy/VtD9wCVpREXigoQ7ehjQndX1cy1FWYFCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:24:07.613483Z","bundle_sha256":"d1709c330d8c552e6dc54b71f29cedfd85dda81dc4c8d901f10987f61548c8f4"}}