{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:MVDBB27SHEN5MRBZR6GRGF32GN","short_pith_number":"pith:MVDBB27S","schema_version":"1.0","canonical_sha256":"654610ebf2391bd644398f8d13177a334c94343f5e79654ea2a60a6ad82ebad4","source":{"kind":"arxiv","id":"1901.09358","version":1},"attestation_state":"computed","paper":{"title":"Very fast helicity injection leading to critically stable state and large eruptive activity in solar active region NOAA 12673","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"P. Vemareddy","submitted_at":"2019-01-27T11:56:06Z","abstract_excerpt":"Using the photospheric magnetic and coronal observations of Solar Dynamics Observatory, we studied the build-up and eruption of coronal non-potential magnetic structure in emerging active region (AR) 12673. The velocity field derived from tracked vector-magnetograms indicates persistent shear and converging motions of flux regions about the polarity inversion line (PIL). A major helicity injection occurs during rapid flux emergence consistent with the very fast flux emergence phase. While this helicity flux builds-up the sigmoid by September 4, the helicity injection by the continued shear and"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1901.09358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-27T11:56:06Z","cross_cats_sorted":[],"title_canon_sha256":"42838e8381dcfb94b34339f9c2d1e6e6d501dafeeb7107cd32e34b0dfdfb6dd4","abstract_canon_sha256":"0186290c6c99853b9903ca552f71ddbbc80b3a214319566c405733862691a398"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:03.054960Z","signature_b64":"ijx4xr0cshQZbHx8bKyslVEQT8tZVH2PYEQixd4zLVcOg0ms13eBr/6WIHMcV1JaKhBV6HVX5bhEql5d755DDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"654610ebf2391bd644398f8d13177a334c94343f5e79654ea2a60a6ad82ebad4","last_reissued_at":"2026-05-17T23:52:03.054277Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:03.054277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Very fast helicity injection leading to critically stable state and large eruptive activity in solar active region NOAA 12673","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"P. Vemareddy","submitted_at":"2019-01-27T11:56:06Z","abstract_excerpt":"Using the photospheric magnetic and coronal observations of Solar Dynamics Observatory, we studied the build-up and eruption of coronal non-potential magnetic structure in emerging active region (AR) 12673. The velocity field derived from tracked vector-magnetograms indicates persistent shear and converging motions of flux regions about the polarity inversion line (PIL). A major helicity injection occurs during rapid flux emergence consistent with the very fast flux emergence phase. While this helicity flux builds-up the sigmoid by September 4, the helicity injection by the continued shear and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.09358","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1901.09358","created_at":"2026-05-17T23:52:03.054403+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.09358v1","created_at":"2026-05-17T23:52:03.054403+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.09358","created_at":"2026-05-17T23:52:03.054403+00:00"},{"alias_kind":"pith_short_12","alias_value":"MVDBB27SHEN5","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"MVDBB27SHEN5MRBZ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"MVDBB27S","created_at":"2026-05-18T12:33:24.271573+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN","json":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN.json","graph_json":"https://pith.science/api/pith-number/MVDBB27SHEN5MRBZR6GRGF32GN/graph.json","events_json":"https://pith.science/api/pith-number/MVDBB27SHEN5MRBZR6GRGF32GN/events.json","paper":"https://pith.science/paper/MVDBB27S"},"agent_actions":{"view_html":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN","download_json":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN.json","view_paper":"https://pith.science/paper/MVDBB27S","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.09358&json=true","fetch_graph":"https://pith.science/api/pith-number/MVDBB27SHEN5MRBZR6GRGF32GN/graph.json","fetch_events":"https://pith.science/api/pith-number/MVDBB27SHEN5MRBZR6GRGF32GN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN/action/storage_attestation","attest_author":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN/action/author_attestation","sign_citation":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN/action/citation_signature","submit_replication":"https://pith.science/pith/MVDBB27SHEN5MRBZR6GRGF32GN/action/replication_record"}},"created_at":"2026-05-17T23:52:03.054403+00:00","updated_at":"2026-05-17T23:52:03.054403+00:00"}