{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:K2SBVOBWISEJCVWEJ7DGO42LF5","short_pith_number":"pith:K2SBVOBW","canonical_record":{"source":{"id":"1106.1129","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-06-06T17:45:35Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"15f54946b59fdb21e86c9f26bfccad1c823b338a6f16f4ae5d03e92077d09939","abstract_canon_sha256":"fc25994d6695d3d972a164938a3ba2e481c471cb884063c6f267620aaec053b7"},"schema_version":"1.0"},"canonical_sha256":"56a41ab83644889156c44fc667734b2f7bc41758eac802125efb069dcea5d1aa","source":{"kind":"arxiv","id":"1106.1129","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.1129","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1106.1129v1","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.1129","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"K2SBVOBWISEJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K2SBVOBWISEJCVWE","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K2SBVOBW","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:K2SBVOBWISEJCVWEJ7DGO42LF5","target":"record","payload":{"canonical_record":{"source":{"id":"1106.1129","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-06-06T17:45:35Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"15f54946b59fdb21e86c9f26bfccad1c823b338a6f16f4ae5d03e92077d09939","abstract_canon_sha256":"fc25994d6695d3d972a164938a3ba2e481c471cb884063c6f267620aaec053b7"},"schema_version":"1.0"},"canonical_sha256":"56a41ab83644889156c44fc667734b2f7bc41758eac802125efb069dcea5d1aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:59:25.473412Z","signature_b64":"+KsfxxbsatacM/qJX7z38Enmu7uYGjW2QGh5o3QtNsxaOY6rxJOxFCgCzRDVwf5L7xJC68qRlqYgOtZAvq8KCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56a41ab83644889156c44fc667734b2f7bc41758eac802125efb069dcea5d1aa","last_reissued_at":"2026-05-18T03:59:25.472607Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:59:25.472607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.1129","source_version":1,"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":"hbq1JPEBMmjFOCtrgrxszIw5qYQAam21+BbtHu2+jCAD0vks+ub6RcjQY5NUIynBMVHntZ1gD+RWWfnqBc3aBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:00:04.340330Z"},"content_sha256":"22ecfc92a274414e44655d6cc3d471be6570ace4d8caf12deae87a1d5685478b","schema_version":"1.0","event_id":"sha256:22ecfc92a274414e44655d6cc3d471be6570ace4d8caf12deae87a1d5685478b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:K2SBVOBWISEJCVWEJ7DGO42LF5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A model of driven and decaying magnetic turbulence in a cylinder","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.plasm-ph","authors_text":"Axel Brandenburg, Hantao Ji, Koen Kemel","submitted_at":"2011-06-06T17:45:35Z","abstract_excerpt":"Using mean-field theory, we compute the evolution of the magnetic field in a cylinder with outer perfectly conducting boundaries, an imposed axial magnetic and electric field. The thus injected magnetic helicity in the system can be redistributed by magnetic helicity fluxes down the gradient of the local current helicity of the small-scale magnetic field. A weak reversal of the axial magnetic field is found to be a consequence of the magnetic helicity flux in the system. Such fluxes are known to alleviate so-called catastrophic quenching of the {\\alpha}-effect in astrophysical applications. Ap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.1129","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"},"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":"ZHLP4P/90L+xS+ynX39ikUNbVRkOQnJ1lz+MvV/5F6cHEG4Xl4+mVVmE8yJgvPNNO31VJilxcLVpv23FksdcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:00:04.341004Z"},"content_sha256":"0d80d8425fa6f40a7207adacc65c79f5e00dd6a15140b7f423b2fb35e54d132d","schema_version":"1.0","event_id":"sha256:0d80d8425fa6f40a7207adacc65c79f5e00dd6a15140b7f423b2fb35e54d132d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/bundle.json","state_url":"https://pith.science/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/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":"2026-05-25T15:00:04Z","links":{"resolver":"https://pith.science/pith/K2SBVOBWISEJCVWEJ7DGO42LF5","bundle":"https://pith.science/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/bundle.json","state":"https://pith.science/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K2SBVOBWISEJCVWEJ7DGO42LF5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:K2SBVOBWISEJCVWEJ7DGO42LF5","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":"fc25994d6695d3d972a164938a3ba2e481c471cb884063c6f267620aaec053b7","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-06-06T17:45:35Z","title_canon_sha256":"15f54946b59fdb21e86c9f26bfccad1c823b338a6f16f4ae5d03e92077d09939"},"schema_version":"1.0","source":{"id":"1106.1129","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.1129","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"1106.1129v1","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.1129","created_at":"2026-05-18T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"K2SBVOBWISEJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K2SBVOBWISEJCVWE","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K2SBVOBW","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:0d80d8425fa6f40a7207adacc65c79f5e00dd6a15140b7f423b2fb35e54d132d","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 mean-field theory, we compute the evolution of the magnetic field in a cylinder with outer perfectly conducting boundaries, an imposed axial magnetic and electric field. The thus injected magnetic helicity in the system can be redistributed by magnetic helicity fluxes down the gradient of the local current helicity of the small-scale magnetic field. A weak reversal of the axial magnetic field is found to be a consequence of the magnetic helicity flux in the system. Such fluxes are known to alleviate so-called catastrophic quenching of the {\\alpha}-effect in astrophysical applications. Ap","authors_text":"Axel Brandenburg, Hantao Ji, Koen Kemel","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-06-06T17:45:35Z","title":"A model of driven and decaying magnetic turbulence in a cylinder"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.1129","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":"sha256:22ecfc92a274414e44655d6cc3d471be6570ace4d8caf12deae87a1d5685478b","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":"fc25994d6695d3d972a164938a3ba2e481c471cb884063c6f267620aaec053b7","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2011-06-06T17:45:35Z","title_canon_sha256":"15f54946b59fdb21e86c9f26bfccad1c823b338a6f16f4ae5d03e92077d09939"},"schema_version":"1.0","source":{"id":"1106.1129","kind":"arxiv","version":1}},"canonical_sha256":"56a41ab83644889156c44fc667734b2f7bc41758eac802125efb069dcea5d1aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56a41ab83644889156c44fc667734b2f7bc41758eac802125efb069dcea5d1aa","first_computed_at":"2026-05-18T03:59:25.472607Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:59:25.472607Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+KsfxxbsatacM/qJX7z38Enmu7uYGjW2QGh5o3QtNsxaOY6rxJOxFCgCzRDVwf5L7xJC68qRlqYgOtZAvq8KCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:59:25.473412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.1129","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22ecfc92a274414e44655d6cc3d471be6570ace4d8caf12deae87a1d5685478b","sha256:0d80d8425fa6f40a7207adacc65c79f5e00dd6a15140b7f423b2fb35e54d132d"],"state_sha256":"6c9072a60de1de93e26f4047324d0f8a73bc9e0fe3d5005cbeb45d83b85bc4a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9uksFIAyBzv1lCm4V/bFIEoYCEW4YJh8zvDG0BKmxDdVSrRP03mlWa74NAYWvMOIrj7exvnwR9GIJ7R3ANehBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:00:04.344856Z","bundle_sha256":"6a5646eb1451ace34a0e8932101e1c89bdbc3afe7d1dd54f4b0e92eaba09bdd2"}}