{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:UZMMY3Q36CC4AH3HHOXCUOMU2O","short_pith_number":"pith:UZMMY3Q3","schema_version":"1.0","canonical_sha256":"a658cc6e1bf085c01f673bae2a3994d398d3113e5e17a955d0c615f3e927f449","source":{"kind":"arxiv","id":"1206.1989","version":1},"attestation_state":"computed","paper":{"title":"A New Code for Nonlinear Force-Free Field Extrapolation of the Global Corona","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Changqing Xiang, Chaowei Jiang, Xueshang Feng","submitted_at":"2012-06-10T02:42:16Z","abstract_excerpt":"Reliable measurements of the solar magnetic field are still restricted to the photosphere, and our present knowledge of the three-dimensional coronal magnetic field is largely based on extrapolation from photospheric magnetogram using physical models, e.g., the nonlinear force-free field (NLFFF) model as usually adopted. Most of the currently available NLFFF codes have been developed with computational volume like Cartesian box or spherical wedge while a global full-sphere extrapolation is still under developing. A high-performance global extrapolation code is in particular urgently needed con"},"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":"1206.1989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-06-10T02:42:16Z","cross_cats_sorted":[],"title_canon_sha256":"2425be90eef8bf5531c4bd1957191e101c4487855faf71ce28f20822ac57b6e8","abstract_canon_sha256":"42cc006d30b8036317df80fe0f34842846ceca865fba1b172226126c77ab1a7f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:00.310343Z","signature_b64":"m9gDw/eRjKhUaH1Ne3vTATfYyJ6l20cZ0Slic/01ylWMw/wzbFMO5qFYCHYB6aNRa1Oz8UEXqHvfcIWnk/66CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a658cc6e1bf085c01f673bae2a3994d398d3113e5e17a955d0c615f3e927f449","last_reissued_at":"2026-05-18T01:57:00.309904Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:00.309904Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A New Code for Nonlinear Force-Free Field Extrapolation of the Global Corona","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Changqing Xiang, Chaowei Jiang, Xueshang Feng","submitted_at":"2012-06-10T02:42:16Z","abstract_excerpt":"Reliable measurements of the solar magnetic field are still restricted to the photosphere, and our present knowledge of the three-dimensional coronal magnetic field is largely based on extrapolation from photospheric magnetogram using physical models, e.g., the nonlinear force-free field (NLFFF) model as usually adopted. Most of the currently available NLFFF codes have been developed with computational volume like Cartesian box or spherical wedge while a global full-sphere extrapolation is still under developing. A high-performance global extrapolation code is in particular urgently needed con"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1989","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":"1206.1989","created_at":"2026-05-18T01:57:00.309984+00:00"},{"alias_kind":"arxiv_version","alias_value":"1206.1989v1","created_at":"2026-05-18T01:57:00.309984+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1989","created_at":"2026-05-18T01:57:00.309984+00:00"},{"alias_kind":"pith_short_12","alias_value":"UZMMY3Q36CC4","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_16","alias_value":"UZMMY3Q36CC4AH3H","created_at":"2026-05-18T12:27:25.539911+00:00"},{"alias_kind":"pith_short_8","alias_value":"UZMMY3Q3","created_at":"2026-05-18T12:27:25.539911+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/UZMMY3Q36CC4AH3HHOXCUOMU2O","json":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O.json","graph_json":"https://pith.science/api/pith-number/UZMMY3Q36CC4AH3HHOXCUOMU2O/graph.json","events_json":"https://pith.science/api/pith-number/UZMMY3Q36CC4AH3HHOXCUOMU2O/events.json","paper":"https://pith.science/paper/UZMMY3Q3"},"agent_actions":{"view_html":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O","download_json":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O.json","view_paper":"https://pith.science/paper/UZMMY3Q3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1206.1989&json=true","fetch_graph":"https://pith.science/api/pith-number/UZMMY3Q36CC4AH3HHOXCUOMU2O/graph.json","fetch_events":"https://pith.science/api/pith-number/UZMMY3Q36CC4AH3HHOXCUOMU2O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O/action/storage_attestation","attest_author":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O/action/author_attestation","sign_citation":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O/action/citation_signature","submit_replication":"https://pith.science/pith/UZMMY3Q36CC4AH3HHOXCUOMU2O/action/replication_record"}},"created_at":"2026-05-18T01:57:00.309984+00:00","updated_at":"2026-05-18T01:57:00.309984+00:00"}