{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:SUUN2KVVKKZC5G7W7KI5QLRZJI","short_pith_number":"pith:SUUN2KVV","schema_version":"1.0","canonical_sha256":"9528dd2ab552b22e9bf6fa91d82e394a0c298e1d7f0a3087a2a0fcde1043eaf3","source":{"kind":"arxiv","id":"1811.10283","version":1},"attestation_state":"computed","paper":{"title":"The Magnetic Field Geometry of Small Solar Wind Flux Ropes Inferred from their Twist Distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.space-ph","authors_text":"A.B. Galvin, C.J. Farrugia, C. M\\\"ostl, K. Paulson, N. Lugaz, P. Vemareddy, W. Yu","submitted_at":"2018-11-26T10:52:49Z","abstract_excerpt":"This work extends recent efforts on the force-free modeling of large flux rope-type structures (magnetic clouds, MCs) to much smaller spatial scales. We first select small flux ropes (SFRs) by eye whose duration is unambiguous and which were observed by the Solar Terrestrial Relations Observatory (STEREO) or Wind spacecraft during solar maximum years. We inquire into which analytical technique is physically most appropriate. We consider three models: (i) linear force-free field ($\\bigtriangledown\\times$ B = $\\alpha (r) $ B) with a specific, prescribed constant $\\alpha$ (Lundquist solution), an"},"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":"1811.10283","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2018-11-26T10:52:49Z","cross_cats_sorted":[],"title_canon_sha256":"5dd9a8060d838e08163151ff9370f1608143c1e77f94c47b8ccf04630a4f135f","abstract_canon_sha256":"ad22f6e52c38391c6a82c188efe2400dee118002aab8ec45b44633079b90355a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:37.283343Z","signature_b64":"IsToyT14jvEFNT8QbMD0SbagsbK+dzCzW28ympbqlHCe47MxKt4nRSH455Xliq3em8FOwoLm9OhnngwRimcMDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9528dd2ab552b22e9bf6fa91d82e394a0c298e1d7f0a3087a2a0fcde1043eaf3","last_reissued_at":"2026-05-17T23:57:37.282802Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:37.282802Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Magnetic Field Geometry of Small Solar Wind Flux Ropes Inferred from their Twist Distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.space-ph","authors_text":"A.B. Galvin, C.J. Farrugia, C. M\\\"ostl, K. Paulson, N. Lugaz, P. Vemareddy, W. Yu","submitted_at":"2018-11-26T10:52:49Z","abstract_excerpt":"This work extends recent efforts on the force-free modeling of large flux rope-type structures (magnetic clouds, MCs) to much smaller spatial scales. We first select small flux ropes (SFRs) by eye whose duration is unambiguous and which were observed by the Solar Terrestrial Relations Observatory (STEREO) or Wind spacecraft during solar maximum years. We inquire into which analytical technique is physically most appropriate. We consider three models: (i) linear force-free field ($\\bigtriangledown\\times$ B = $\\alpha (r) $ B) with a specific, prescribed constant $\\alpha$ (Lundquist solution), an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.10283","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":"1811.10283","created_at":"2026-05-17T23:57:37.282879+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.10283v1","created_at":"2026-05-17T23:57:37.282879+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.10283","created_at":"2026-05-17T23:57:37.282879+00:00"},{"alias_kind":"pith_short_12","alias_value":"SUUN2KVVKKZC","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"SUUN2KVVKKZC5G7W","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"SUUN2KVV","created_at":"2026-05-18T12:32:53.628368+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/SUUN2KVVKKZC5G7W7KI5QLRZJI","json":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI.json","graph_json":"https://pith.science/api/pith-number/SUUN2KVVKKZC5G7W7KI5QLRZJI/graph.json","events_json":"https://pith.science/api/pith-number/SUUN2KVVKKZC5G7W7KI5QLRZJI/events.json","paper":"https://pith.science/paper/SUUN2KVV"},"agent_actions":{"view_html":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI","download_json":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI.json","view_paper":"https://pith.science/paper/SUUN2KVV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.10283&json=true","fetch_graph":"https://pith.science/api/pith-number/SUUN2KVVKKZC5G7W7KI5QLRZJI/graph.json","fetch_events":"https://pith.science/api/pith-number/SUUN2KVVKKZC5G7W7KI5QLRZJI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI/action/storage_attestation","attest_author":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI/action/author_attestation","sign_citation":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI/action/citation_signature","submit_replication":"https://pith.science/pith/SUUN2KVVKKZC5G7W7KI5QLRZJI/action/replication_record"}},"created_at":"2026-05-17T23:57:37.282879+00:00","updated_at":"2026-05-17T23:57:37.282879+00:00"}