{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:L46GTZMUSWV2CGWHDRZOGVFUNN","short_pith_number":"pith:L46GTZMU","canonical_record":{"source":{"id":"astro-ph/0212203","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-09T13:56:46Z","cross_cats_sorted":[],"title_canon_sha256":"8cea422bfe4956eab9d68dffc54af651cdaafa27c296c0f1c2bb810190592b14","abstract_canon_sha256":"56c944b749215b13d05748016af2825c0c6d660e9b4a4d3e3d5134c417517c9f"},"schema_version":"1.0"},"canonical_sha256":"5f3c69e59495aba11ac71c72e354b46b79c2405af52ba73a77b968656bcbe9e2","source":{"kind":"arxiv","id":"astro-ph/0212203","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0212203","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0212203v1","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0212203","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"L46GTZMUSWV2","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"L46GTZMUSWV2CGWH","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"L46GTZMU","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:L46GTZMUSWV2CGWHDRZOGVFUNN","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0212203","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-09T13:56:46Z","cross_cats_sorted":[],"title_canon_sha256":"8cea422bfe4956eab9d68dffc54af651cdaafa27c296c0f1c2bb810190592b14","abstract_canon_sha256":"56c944b749215b13d05748016af2825c0c6d660e9b4a4d3e3d5134c417517c9f"},"schema_version":"1.0"},"canonical_sha256":"5f3c69e59495aba11ac71c72e354b46b79c2405af52ba73a77b968656bcbe9e2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:03.540704Z","signature_b64":"/Tng59kklYFC9lNGmvb5a3mgJeTCS7KnUgP8h6h/Yyn7pOep89SgvpcCpehb3RVbB86OcTv5zaQP+z/eI5cPDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f3c69e59495aba11ac71c72e354b46b79c2405af52ba73a77b968656bcbe9e2","last_reissued_at":"2026-05-18T01:09:03.540296Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:03.540296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0212203","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":"2026-05-18T01:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eiWzofPV9XhZsB/EliajAmHm3F00tePpzmHecEy9L6X5MUoKdjejixYtSFaHI6i94UezHHmI5VexsiYkQ2JjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T15:33:43.790558Z"},"content_sha256":"e0770cf1109dee571786b55c3281187e3ec10ad466062946c5139b0ba12136fd","schema_version":"1.0","event_id":"sha256:e0770cf1109dee571786b55c3281187e3ec10ad466062946c5139b0ba12136fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:L46GTZMUSWV2CGWHDRZOGVFUNN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Do spherical alpha^2-dynamos oscillate?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D. Elstner, G. R\\\"udiger, M. Ossendrijver","submitted_at":"2002-12-09T13:56:46Z","abstract_excerpt":"The question is answered whether kinematic alpha^2-shell-dynamos are able to produce a cyclic activity or not. The alpha-effect is allowed to be latitudinally inhomogeneous and/or anisotropic, but it is assumed as radially uniform in the turbulent shell.\n  For a symmetric alpha-tensor we only find oscillatory solutions if i) the alpha_zz vanishes or is of the opposite sign as alpha_{phi phi}, ii) the alpha-effect is strongly concentrated to the equatorial region and iii) the alpha-effect is concentrated to a rather thin outer shell. In the other cases almost always the nonaxisymmetric field mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0212203","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":"2026-05-18T01:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y4B2UGXUfjt8PnWLtje+vsYJi9dA12KxT/aJn/Qq50nZbq3RgvuS1BNX4iKAf2p8BEyiDNT1tLzEpMOsKqHTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T15:33:43.791229Z"},"content_sha256":"f03bbcbd9caea0f4797cbbef15dd3e176687b9164da06a111340ace1c68dfe96","schema_version":"1.0","event_id":"sha256:f03bbcbd9caea0f4797cbbef15dd3e176687b9164da06a111340ace1c68dfe96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/bundle.json","state_url":"https://pith.science/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/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":"2026-05-23T15:33:43Z","links":{"resolver":"https://pith.science/pith/L46GTZMUSWV2CGWHDRZOGVFUNN","bundle":"https://pith.science/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/bundle.json","state":"https://pith.science/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L46GTZMUSWV2CGWHDRZOGVFUNN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:L46GTZMUSWV2CGWHDRZOGVFUNN","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":"56c944b749215b13d05748016af2825c0c6d660e9b4a4d3e3d5134c417517c9f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-09T13:56:46Z","title_canon_sha256":"8cea422bfe4956eab9d68dffc54af651cdaafa27c296c0f1c2bb810190592b14"},"schema_version":"1.0","source":{"id":"astro-ph/0212203","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0212203","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0212203v1","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0212203","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"L46GTZMUSWV2","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"L46GTZMUSWV2CGWH","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"L46GTZMU","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:f03bbcbd9caea0f4797cbbef15dd3e176687b9164da06a111340ace1c68dfe96","target":"graph","created_at":"2026-05-18T01:09:03Z","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":"The question is answered whether kinematic alpha^2-shell-dynamos are able to produce a cyclic activity or not. The alpha-effect is allowed to be latitudinally inhomogeneous and/or anisotropic, but it is assumed as radially uniform in the turbulent shell.\n  For a symmetric alpha-tensor we only find oscillatory solutions if i) the alpha_zz vanishes or is of the opposite sign as alpha_{phi phi}, ii) the alpha-effect is strongly concentrated to the equatorial region and iii) the alpha-effect is concentrated to a rather thin outer shell. In the other cases almost always the nonaxisymmetric field mo","authors_text":"D. Elstner, G. R\\\"udiger, M. Ossendrijver","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-12-09T13:56:46Z","title":"Do spherical alpha^2-dynamos oscillate?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0212203","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:e0770cf1109dee571786b55c3281187e3ec10ad466062946c5139b0ba12136fd","target":"record","created_at":"2026-05-18T01:09:03Z","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":"56c944b749215b13d05748016af2825c0c6d660e9b4a4d3e3d5134c417517c9f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-09T13:56:46Z","title_canon_sha256":"8cea422bfe4956eab9d68dffc54af651cdaafa27c296c0f1c2bb810190592b14"},"schema_version":"1.0","source":{"id":"astro-ph/0212203","kind":"arxiv","version":1}},"canonical_sha256":"5f3c69e59495aba11ac71c72e354b46b79c2405af52ba73a77b968656bcbe9e2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f3c69e59495aba11ac71c72e354b46b79c2405af52ba73a77b968656bcbe9e2","first_computed_at":"2026-05-18T01:09:03.540296Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:03.540296Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Tng59kklYFC9lNGmvb5a3mgJeTCS7KnUgP8h6h/Yyn7pOep89SgvpcCpehb3RVbB86OcTv5zaQP+z/eI5cPDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:03.540704Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0212203","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0770cf1109dee571786b55c3281187e3ec10ad466062946c5139b0ba12136fd","sha256:f03bbcbd9caea0f4797cbbef15dd3e176687b9164da06a111340ace1c68dfe96"],"state_sha256":"6fbeae7d377d0db8ef14d99aac974eda2f600ddfb7510311b4657b3f586794ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTN/8wxsydWU1fnO9AUEl6Luw/2rX6psgbITcsLAfs4We7WvHvPqvoRWMahOhbdOP6oCdmdYvmNn99U0EnbiCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T15:33:43.795051Z","bundle_sha256":"863698ba286c28ad0d8d24261a94ec3a3f685e2f329a5775629c541a43e5e57d"}}