{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:P26MQPMNDVPWYUAUHYVTEGXBKR","short_pith_number":"pith:P26MQPMN","canonical_record":{"source":{"id":"1107.2548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-13T13:38:47Z","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"title_canon_sha256":"d982a0b3c5e4b169e8ba61e272286c6987ee7f9871bf6e4465ca8d9e73292b1e","abstract_canon_sha256":"5e821ad0ce530a3a1cb240db2eab96a5fabf409af3349c3aa2dd1a40bfdbb08c"},"schema_version":"1.0"},"canonical_sha256":"7ebcc83d8d1d5f6c50143e2b321ae1547778bd8c7ceb93be39ce2a87915e3575","source":{"kind":"arxiv","id":"1107.2548","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2548","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2548v1","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2548","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"pith_short_12","alias_value":"P26MQPMNDVPW","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"P26MQPMNDVPWYUAU","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"P26MQPMN","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:P26MQPMNDVPWYUAUHYVTEGXBKR","target":"record","payload":{"canonical_record":{"source":{"id":"1107.2548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-13T13:38:47Z","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"title_canon_sha256":"d982a0b3c5e4b169e8ba61e272286c6987ee7f9871bf6e4465ca8d9e73292b1e","abstract_canon_sha256":"5e821ad0ce530a3a1cb240db2eab96a5fabf409af3349c3aa2dd1a40bfdbb08c"},"schema_version":"1.0"},"canonical_sha256":"7ebcc83d8d1d5f6c50143e2b321ae1547778bd8c7ceb93be39ce2a87915e3575","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:19.085242Z","signature_b64":"GVRvOQFVDKCW/GOzrlYNakqzGGiTP5uLC/TqCGJNwoEUKBYFnk2HQRmouQ7e8U6di6uNfA8mUqshOp7k0/xzBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ebcc83d8d1d5f6c50143e2b321ae1547778bd8c7ceb93be39ce2a87915e3575","last_reissued_at":"2026-05-18T02:01:19.084706Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:19.084706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.2548","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":"2026-05-18T02:01:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdCJuA8jC9c8xesLroCoIB9bBOEvkakw0CSZ12CthVeg1ZdnY1w2FWLThQeK2gee2SqZr6RbUyjLyUCCkEdTCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:46:06.742877Z"},"content_sha256":"e3d46c51cae881cb64d0c58b1ffea4ea2a44435787654739ec7574f4fbdf4c2c","schema_version":"1.0","event_id":"sha256:e3d46c51cae881cb64d0c58b1ffea4ea2a44435787654739ec7574f4fbdf4c2c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:P26MQPMNDVPWYUAUHYVTEGXBKR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helicity and dynamo action in magnetized stellar radiation zones","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"D. Elstner, G. Ruediger, L.L. Kitchatinov","submitted_at":"2011-07-13T13:38:47Z","abstract_excerpt":"Helicity and \\alpha effect driven by the nonaxisymmetric Tayler instability of toroidal magnetic fields in stellar radiation zones are computed. In the linear approximation a purely toroidal field always excites pairs of modes with identical growth rates but with opposite helicity so that the net helicity vanishes. If the magnetic background field has a helical structure by an extra (weak) poloidal component then one of the modes dominates producing a net kinetic helicity anticorrelated to the current helicity of the background field.\n  The mean electromotive force is computed with the result "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2548","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":"2026-05-18T02:01:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E5tzYue4avnRS2oIqfwi8lmaLNpstnVGDIjmL/oJhAR0RDx116OgSNU3GeSR0AxpXMncvAzoBawf3j4UlOeXAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T01:46:06.743227Z"},"content_sha256":"95acbdc328a85534a0755c74b91f1eeb765e14b65de6d08c03b97e2c718f0067","schema_version":"1.0","event_id":"sha256:95acbdc328a85534a0755c74b91f1eeb765e14b65de6d08c03b97e2c718f0067"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/bundle.json","state_url":"https://pith.science/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/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":"2026-06-03T01:46:06Z","links":{"resolver":"https://pith.science/pith/P26MQPMNDVPWYUAUHYVTEGXBKR","bundle":"https://pith.science/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/bundle.json","state":"https://pith.science/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P26MQPMNDVPWYUAUHYVTEGXBKR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:P26MQPMNDVPWYUAUHYVTEGXBKR","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":"5e821ad0ce530a3a1cb240db2eab96a5fabf409af3349c3aa2dd1a40bfdbb08c","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-13T13:38:47Z","title_canon_sha256":"d982a0b3c5e4b169e8ba61e272286c6987ee7f9871bf6e4465ca8d9e73292b1e"},"schema_version":"1.0","source":{"id":"1107.2548","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2548","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2548v1","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2548","created_at":"2026-05-18T02:01:19Z"},{"alias_kind":"pith_short_12","alias_value":"P26MQPMNDVPW","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"P26MQPMNDVPWYUAU","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"P26MQPMN","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:95acbdc328a85534a0755c74b91f1eeb765e14b65de6d08c03b97e2c718f0067","target":"graph","created_at":"2026-05-18T02:01:19Z","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":"Helicity and \\alpha effect driven by the nonaxisymmetric Tayler instability of toroidal magnetic fields in stellar radiation zones are computed. In the linear approximation a purely toroidal field always excites pairs of modes with identical growth rates but with opposite helicity so that the net helicity vanishes. If the magnetic background field has a helical structure by an extra (weak) poloidal component then one of the modes dominates producing a net kinetic helicity anticorrelated to the current helicity of the background field.\n  The mean electromotive force is computed with the result ","authors_text":"D. Elstner, G. Ruediger, L.L. Kitchatinov","cross_cats":["astro-ph.EP","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-13T13:38:47Z","title":"Helicity and dynamo action in magnetized stellar radiation zones"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2548","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:e3d46c51cae881cb64d0c58b1ffea4ea2a44435787654739ec7574f4fbdf4c2c","target":"record","created_at":"2026-05-18T02:01:19Z","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":"5e821ad0ce530a3a1cb240db2eab96a5fabf409af3349c3aa2dd1a40bfdbb08c","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-13T13:38:47Z","title_canon_sha256":"d982a0b3c5e4b169e8ba61e272286c6987ee7f9871bf6e4465ca8d9e73292b1e"},"schema_version":"1.0","source":{"id":"1107.2548","kind":"arxiv","version":1}},"canonical_sha256":"7ebcc83d8d1d5f6c50143e2b321ae1547778bd8c7ceb93be39ce2a87915e3575","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ebcc83d8d1d5f6c50143e2b321ae1547778bd8c7ceb93be39ce2a87915e3575","first_computed_at":"2026-05-18T02:01:19.084706Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:19.084706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GVRvOQFVDKCW/GOzrlYNakqzGGiTP5uLC/TqCGJNwoEUKBYFnk2HQRmouQ7e8U6di6uNfA8mUqshOp7k0/xzBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:19.085242Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.2548","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3d46c51cae881cb64d0c58b1ffea4ea2a44435787654739ec7574f4fbdf4c2c","sha256:95acbdc328a85534a0755c74b91f1eeb765e14b65de6d08c03b97e2c718f0067"],"state_sha256":"2b8fa7e5cd8d7e9dfad8853cde14b0c4edf5bf4e46267683b98082875aa088ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BExo5ImkzOQypbipdCK9Edmp2WP2lTCYEj2UCz7YPGzNAJbSqTABO4x4qLNiDkyZYwucFP8inpJlyNOK+viZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T01:46:06.745215Z","bundle_sha256":"e306c715d15287f7d40f01a37979c96992d2bd5260024bc2d830cf8c89df4753"}}