{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:GTZIDKYWTMM6FUQP4BCBM6QCIO","short_pith_number":"pith:GTZIDKYW","canonical_record":{"source":{"id":"astro-ph/0212010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-01T22:02:56Z","cross_cats_sorted":[],"title_canon_sha256":"0028c478a8e56a005ee68d0d14a54b52235ee48f96058139ded9ccb9b79ff22f","abstract_canon_sha256":"473ac6adc71940acf6c4af9c9d6a370b57d3235d6288858a531d95b2ea648e93"},"schema_version":"1.0"},"canonical_sha256":"34f281ab169b19e2d20fe044167a0243bc0e8690ae998fb9d71f30e7766f7d26","source":{"kind":"arxiv","id":"astro-ph/0212010","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0212010","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0212010v1","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0212010","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_12","alias_value":"GTZIDKYWTMM6","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_16","alias_value":"GTZIDKYWTMM6FUQP","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_8","alias_value":"GTZIDKYW","created_at":"2026-07-04T15:11:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:GTZIDKYWTMM6FUQP4BCBM6QCIO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0212010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-01T22:02:56Z","cross_cats_sorted":[],"title_canon_sha256":"0028c478a8e56a005ee68d0d14a54b52235ee48f96058139ded9ccb9b79ff22f","abstract_canon_sha256":"473ac6adc71940acf6c4af9c9d6a370b57d3235d6288858a531d95b2ea648e93"},"schema_version":"1.0"},"canonical_sha256":"34f281ab169b19e2d20fe044167a0243bc0e8690ae998fb9d71f30e7766f7d26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:11:42.260700Z","signature_b64":"fxCuwqmqmK4ilFDyfD/rEKEp64yQ0JJ8Qbe2TE1nlqvbLpBpYJgjSy/UimP5GryVEUcia0qasWkRQfshjOI+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34f281ab169b19e2d20fe044167a0243bc0e8690ae998fb9d71f30e7766f7d26","last_reissued_at":"2026-07-04T15:11:42.260239Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:11:42.260239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0212010","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":"2026-07-04T15:11:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ch3fTR7XeuOnvpu9NHpMsED7vcI0qtHAX0Auwy1piIsPmMFCV7r2IA56AN9UDg+aheV1H/gQ19jXRXe202STCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T08:01:10.374743Z"},"content_sha256":"b4d7e323299c823bffa4945471b3aecb9aa6be42faef0bfc6b3879b6139099c9","schema_version":"1.0","event_id":"sha256:b4d7e323299c823bffa4945471b3aecb9aa6be42faef0bfc6b3879b6139099c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:GTZIDKYWTMM6FUQP4BCBM6QCIO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Doubly Helical Coronal Ejections from Dynamos and their Role in Sustaining the Solar Cycle","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Axel Brandenburg (Nordita), Eric G. Blackman (Univ. of Rochester)","submitted_at":"2002-12-01T22:02:56Z","abstract_excerpt":"Two questions about the solar magnetic field might be answered together once their connection is identified. The first is important for large scale dynamo theory: what prevents the magnetic backreaction forces from shutting down the dynamo cycle? The second question is: what determines the handedness of twist and writhe in magnetized coronal ejecta? Magnetic helicity conservation is important for answering both questions. Conservation implies that dynamo generation of large scale writhed structures is accompanied by the oppositely signed twist along these structures. The latter is associated w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0212010","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0212010/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:11:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+q6Pnd0nbGqIwQPU3vGU42RdYEyR9sQqpYS3MUOUB6omq+YElOIuT05cqFB76RR5RILoiDePLjoQmL5CsLp5AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T08:01:10.375140Z"},"content_sha256":"a038df85cf213b5726abb5ba1c2787e757a7f2bb9546d78f2d0070b473485015","schema_version":"1.0","event_id":"sha256:a038df85cf213b5726abb5ba1c2787e757a7f2bb9546d78f2d0070b473485015"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/bundle.json","state_url":"https://pith.science/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/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":"2026-07-05T08:01:10Z","links":{"resolver":"https://pith.science/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO","bundle":"https://pith.science/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/bundle.json","state":"https://pith.science/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GTZIDKYWTMM6FUQP4BCBM6QCIO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:GTZIDKYWTMM6FUQP4BCBM6QCIO","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":"473ac6adc71940acf6c4af9c9d6a370b57d3235d6288858a531d95b2ea648e93","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-01T22:02:56Z","title_canon_sha256":"0028c478a8e56a005ee68d0d14a54b52235ee48f96058139ded9ccb9b79ff22f"},"schema_version":"1.0","source":{"id":"astro-ph/0212010","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0212010","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0212010v1","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0212010","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_12","alias_value":"GTZIDKYWTMM6","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_16","alias_value":"GTZIDKYWTMM6FUQP","created_at":"2026-07-04T15:11:42Z"},{"alias_kind":"pith_short_8","alias_value":"GTZIDKYW","created_at":"2026-07-04T15:11:42Z"}],"graph_snapshots":[{"event_id":"sha256:a038df85cf213b5726abb5ba1c2787e757a7f2bb9546d78f2d0070b473485015","target":"graph","created_at":"2026-07-04T15:11:42Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0212010/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two questions about the solar magnetic field might be answered together once their connection is identified. The first is important for large scale dynamo theory: what prevents the magnetic backreaction forces from shutting down the dynamo cycle? The second question is: what determines the handedness of twist and writhe in magnetized coronal ejecta? Magnetic helicity conservation is important for answering both questions. Conservation implies that dynamo generation of large scale writhed structures is accompanied by the oppositely signed twist along these structures. The latter is associated w","authors_text":"Axel Brandenburg (Nordita), Eric G. Blackman (Univ. of Rochester)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-12-01T22:02:56Z","title":"Doubly Helical Coronal Ejections from Dynamos and their Role in Sustaining the Solar Cycle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0212010","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:b4d7e323299c823bffa4945471b3aecb9aa6be42faef0bfc6b3879b6139099c9","target":"record","created_at":"2026-07-04T15:11:42Z","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":"473ac6adc71940acf6c4af9c9d6a370b57d3235d6288858a531d95b2ea648e93","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-12-01T22:02:56Z","title_canon_sha256":"0028c478a8e56a005ee68d0d14a54b52235ee48f96058139ded9ccb9b79ff22f"},"schema_version":"1.0","source":{"id":"astro-ph/0212010","kind":"arxiv","version":1}},"canonical_sha256":"34f281ab169b19e2d20fe044167a0243bc0e8690ae998fb9d71f30e7766f7d26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34f281ab169b19e2d20fe044167a0243bc0e8690ae998fb9d71f30e7766f7d26","first_computed_at":"2026-07-04T15:11:42.260239Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:11:42.260239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fxCuwqmqmK4ilFDyfD/rEKEp64yQ0JJ8Qbe2TE1nlqvbLpBpYJgjSy/UimP5GryVEUcia0qasWkRQfshjOI+AQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:11:42.260700Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0212010","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4d7e323299c823bffa4945471b3aecb9aa6be42faef0bfc6b3879b6139099c9","sha256:a038df85cf213b5726abb5ba1c2787e757a7f2bb9546d78f2d0070b473485015"],"state_sha256":"b8abaa1e9072ea2ef73c43e1365638b44ceee5885ef8122c3b4eb4879dc39f85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SKMTvp4fiFBOP4kgGLGQuqBVwMML3HVUpVuX/kEwm7mprKyW0JbTokUzAomfhfs8J5Nv0jrKUq0bz8CCgzvHDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T08:01:10.377017Z","bundle_sha256":"f89810b31ed76476864fffab62c9cc230b01c76b3bbf1f19baf44e18f1886e05"}}