{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:BBSYZTNBYQYBMTPS2T5VUUHKSW","short_pith_number":"pith:BBSYZTNB","canonical_record":{"source":{"id":"2205.08191","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2022-05-17T09:23:01Z","cross_cats_sorted":["cs.NA"],"title_canon_sha256":"64cb2f82baefe0478b8e7cd71c7a0cd4f9deccf1949909b8bf1e4842764d3f8e","abstract_canon_sha256":"c7662587f0b20a2f615a4bb1d698d59b56d4c435bb8e6b3584cbe8fc1756a4fc"},"schema_version":"1.0"},"canonical_sha256":"08658ccda1c430164df2d4fb5a50ea9596abdde19fbe28c689f13979fb4e5081","source":{"kind":"arxiv","id":"2205.08191","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.08191","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"arxiv_version","alias_value":"2205.08191v1","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.08191","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_12","alias_value":"BBSYZTNBYQYB","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_16","alias_value":"BBSYZTNBYQYBMTPS","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_8","alias_value":"BBSYZTNB","created_at":"2026-07-05T04:24:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:BBSYZTNBYQYBMTPS2T5VUUHKSW","target":"record","payload":{"canonical_record":{"source":{"id":"2205.08191","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2022-05-17T09:23:01Z","cross_cats_sorted":["cs.NA"],"title_canon_sha256":"64cb2f82baefe0478b8e7cd71c7a0cd4f9deccf1949909b8bf1e4842764d3f8e","abstract_canon_sha256":"c7662587f0b20a2f615a4bb1d698d59b56d4c435bb8e6b3584cbe8fc1756a4fc"},"schema_version":"1.0"},"canonical_sha256":"08658ccda1c430164df2d4fb5a50ea9596abdde19fbe28c689f13979fb4e5081","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:24:00.266235Z","signature_b64":"4PVWhwN99qCPWF9BxygUO1WydEYwplRQhhhKbJwK1qN7XU4QFhVnw369gX6Q3h2U1joa8cL717PYiZ54lMb+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08658ccda1c430164df2d4fb5a50ea9596abdde19fbe28c689f13979fb4e5081","last_reissued_at":"2026-07-05T04:24:00.265744Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:24:00.265744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.08191","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":"2026-07-05T04:24:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KXOuZ9PhuzE9uqb398yuV5siLWiUbZBtjkibcoBqLF26JKo/KMUw5x1ki9strt4nk688XZ2rfppceRJ42UD/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:22:48.007570Z"},"content_sha256":"0c3ecc4a6d08222cb2b206a52088137e15d65a410bbb2bb3e5263ea8fd287033","schema_version":"1.0","event_id":"sha256:0c3ecc4a6d08222cb2b206a52088137e15d65a410bbb2bb3e5263ea8fd287033"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:BBSYZTNBYQYBMTPS2T5VUUHKSW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Semi-discretization and full-discretization with optimal accuracy for charged-particle dynamics in a strong nonuniform magnetic field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA"],"primary_cat":"math.NA","authors_text":"Bin Wang, Yaolin Jiang","submitted_at":"2022-05-17T09:23:01Z","abstract_excerpt":"The aim of this paper is to formulate and analyze numerical discretizations of charged-particle dynamics (CPD) in a strong nonuniform magnetic field. A strategy is firstly performed for the two dimensional CPD to construct the semi-discretization and full-discretization which have optimal accuracy. This accuracy is improved in the position and in the velocity when the strength of the magnetic field becomes stronger. This is a better feature than the usual so called \"uniformly accurate methods\". To obtain this refined accuracy, some reformulations of the problem and two-scale exponential integr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.08191","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/2205.08191/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":"2026-07-05T04:24:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JCSppmIPLooXQ7EzTfDV2APHPq9ZDuA281AM2aJ0+kBGo5wDdr20JMVPFzc61pKr+IavMJz5R76EzmZofvclDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:22:48.008301Z"},"content_sha256":"a4cfdfedfa9c6eaf0129aa3f39b54627144209badb9570a227b9a0869146a8f1","schema_version":"1.0","event_id":"sha256:a4cfdfedfa9c6eaf0129aa3f39b54627144209badb9570a227b9a0869146a8f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/bundle.json","state_url":"https://pith.science/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/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":"2026-08-03T18:22:48Z","links":{"resolver":"https://pith.science/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW","bundle":"https://pith.science/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/bundle.json","state":"https://pith.science/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BBSYZTNBYQYBMTPS2T5VUUHKSW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:BBSYZTNBYQYBMTPS2T5VUUHKSW","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":"c7662587f0b20a2f615a4bb1d698d59b56d4c435bb8e6b3584cbe8fc1756a4fc","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2022-05-17T09:23:01Z","title_canon_sha256":"64cb2f82baefe0478b8e7cd71c7a0cd4f9deccf1949909b8bf1e4842764d3f8e"},"schema_version":"1.0","source":{"id":"2205.08191","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.08191","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"arxiv_version","alias_value":"2205.08191v1","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.08191","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_12","alias_value":"BBSYZTNBYQYB","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_16","alias_value":"BBSYZTNBYQYBMTPS","created_at":"2026-07-05T04:24:00Z"},{"alias_kind":"pith_short_8","alias_value":"BBSYZTNB","created_at":"2026-07-05T04:24:00Z"}],"graph_snapshots":[{"event_id":"sha256:a4cfdfedfa9c6eaf0129aa3f39b54627144209badb9570a227b9a0869146a8f1","target":"graph","created_at":"2026-07-05T04:24:00Z","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/2205.08191/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The aim of this paper is to formulate and analyze numerical discretizations of charged-particle dynamics (CPD) in a strong nonuniform magnetic field. A strategy is firstly performed for the two dimensional CPD to construct the semi-discretization and full-discretization which have optimal accuracy. This accuracy is improved in the position and in the velocity when the strength of the magnetic field becomes stronger. This is a better feature than the usual so called \"uniformly accurate methods\". To obtain this refined accuracy, some reformulations of the problem and two-scale exponential integr","authors_text":"Bin Wang, Yaolin Jiang","cross_cats":["cs.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2022-05-17T09:23:01Z","title":"Semi-discretization and full-discretization with optimal accuracy for charged-particle dynamics in a strong nonuniform magnetic field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.08191","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":"sha256:0c3ecc4a6d08222cb2b206a52088137e15d65a410bbb2bb3e5263ea8fd287033","target":"record","created_at":"2026-07-05T04:24:00Z","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":"c7662587f0b20a2f615a4bb1d698d59b56d4c435bb8e6b3584cbe8fc1756a4fc","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2022-05-17T09:23:01Z","title_canon_sha256":"64cb2f82baefe0478b8e7cd71c7a0cd4f9deccf1949909b8bf1e4842764d3f8e"},"schema_version":"1.0","source":{"id":"2205.08191","kind":"arxiv","version":1}},"canonical_sha256":"08658ccda1c430164df2d4fb5a50ea9596abdde19fbe28c689f13979fb4e5081","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08658ccda1c430164df2d4fb5a50ea9596abdde19fbe28c689f13979fb4e5081","first_computed_at":"2026-07-05T04:24:00.265744Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:24:00.265744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4PVWhwN99qCPWF9BxygUO1WydEYwplRQhhhKbJwK1qN7XU4QFhVnw369gX6Q3h2U1joa8cL717PYiZ54lMb+AA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:24:00.266235Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.08191","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c3ecc4a6d08222cb2b206a52088137e15d65a410bbb2bb3e5263ea8fd287033","sha256:a4cfdfedfa9c6eaf0129aa3f39b54627144209badb9570a227b9a0869146a8f1"],"state_sha256":"2b0c804c8dd1b11e3b40d21557f20df4c2ceabfe5fa29837348312445912c64d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kXcYxWgkyR3fUJj7AcF2/tfqmCMN6bpIgAohPNurzaJrKsMcbIMROEwodsVbbIsR2MOhSdnnzIqHm9grWT/ODg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:22:48.015011Z","bundle_sha256":"b4de0a0014fbed315e70b4f28c9480402474b90e065e9b18cc884822356f9a64"}}