{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:3TQ4PKZJZEMS7UB2S6QLLOCYKL","short_pith_number":"pith:3TQ4PKZJ","schema_version":"1.0","canonical_sha256":"dce1c7ab29c9192fd03a97a0b5b85852ef24cd77d21cc4eb4f9620d80d4ecac8","source":{"kind":"arxiv","id":"1607.02379","version":1},"attestation_state":"computed","paper":{"title":"3D WKB solution for fast magnetoacoustic wave behaviour around an X-line","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. L. Spoors, G. J. J. Botha, J. A. McLaughlin, S. Regnier","submitted_at":"2016-07-08T14:23:17Z","abstract_excerpt":"We study the propagation of a fast magnetoacoustic wave in a 3D magnetic field created from two magnetic dipoles. The magnetic topology contains an X-line. We aim to contribute to the overall understanding of MHD wave propagation within inhomogeneous media, specifically around X-lines. We investigate the linearised, 3D MHD equations under the assumptions of ideal and cold plasma. We utilise the WKB approximation and Charpit's method during our investigation. It is found that the behaviour of the fast magnetoacoustic wave is entirely dictated by the local, inhomogeneous, equilibrium Alfv\\'en sp"},"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":"1607.02379","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-08T14:23:17Z","cross_cats_sorted":[],"title_canon_sha256":"a9406348a85e96040722bff16424caf1e4548d23516297fbb0720ca74ef061ff","abstract_canon_sha256":"2ea15ca7a3344708e44249a5a2d83e381ad2832ef8178b17fd639379b1b350d5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:20.548659Z","signature_b64":"AQjIjNQXfZEbYxPKqeSBvS1XRVfYSJ2hFrkQqyhYXY5bUu3lonOo0ekAb1w2ADRj/4b68WUIO7oCkfrPcGoPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dce1c7ab29c9192fd03a97a0b5b85852ef24cd77d21cc4eb4f9620d80d4ecac8","last_reissued_at":"2026-05-18T01:11:20.548191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:20.548191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"3D WKB solution for fast magnetoacoustic wave behaviour around an X-line","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. L. Spoors, G. J. J. Botha, J. A. McLaughlin, S. Regnier","submitted_at":"2016-07-08T14:23:17Z","abstract_excerpt":"We study the propagation of a fast magnetoacoustic wave in a 3D magnetic field created from two magnetic dipoles. The magnetic topology contains an X-line. We aim to contribute to the overall understanding of MHD wave propagation within inhomogeneous media, specifically around X-lines. We investigate the linearised, 3D MHD equations under the assumptions of ideal and cold plasma. We utilise the WKB approximation and Charpit's method during our investigation. It is found that the behaviour of the fast magnetoacoustic wave is entirely dictated by the local, inhomogeneous, equilibrium Alfv\\'en sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.02379","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":"1607.02379","created_at":"2026-05-18T01:11:20.548285+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.02379v1","created_at":"2026-05-18T01:11:20.548285+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.02379","created_at":"2026-05-18T01:11:20.548285+00:00"},{"alias_kind":"pith_short_12","alias_value":"3TQ4PKZJZEMS","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_16","alias_value":"3TQ4PKZJZEMS7UB2","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_8","alias_value":"3TQ4PKZJ","created_at":"2026-05-18T12:29:58.707656+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/3TQ4PKZJZEMS7UB2S6QLLOCYKL","json":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL.json","graph_json":"https://pith.science/api/pith-number/3TQ4PKZJZEMS7UB2S6QLLOCYKL/graph.json","events_json":"https://pith.science/api/pith-number/3TQ4PKZJZEMS7UB2S6QLLOCYKL/events.json","paper":"https://pith.science/paper/3TQ4PKZJ"},"agent_actions":{"view_html":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL","download_json":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL.json","view_paper":"https://pith.science/paper/3TQ4PKZJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.02379&json=true","fetch_graph":"https://pith.science/api/pith-number/3TQ4PKZJZEMS7UB2S6QLLOCYKL/graph.json","fetch_events":"https://pith.science/api/pith-number/3TQ4PKZJZEMS7UB2S6QLLOCYKL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL/action/storage_attestation","attest_author":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL/action/author_attestation","sign_citation":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL/action/citation_signature","submit_replication":"https://pith.science/pith/3TQ4PKZJZEMS7UB2S6QLLOCYKL/action/replication_record"}},"created_at":"2026-05-18T01:11:20.548285+00:00","updated_at":"2026-05-18T01:11:20.548285+00:00"}