{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:V6ANBIE5AM4MTCC4353J7HKZEV","short_pith_number":"pith:V6ANBIE5","canonical_record":{"source":{"id":"1801.04869","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-01-15T16:37:53Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"a9e12ebd3c2d60b8bb9d859758913915e7e54b5d9ab7e90bd02d0ebd09274f32","abstract_canon_sha256":"9bfa45d4dc57b7d07be4c877eac0e1170e4c8879951661f316d4035afee87b22"},"schema_version":"1.0"},"canonical_sha256":"af80d0a09d0338c9885cdf769f9d592571eca902e5b05fec5b3d3bc53e0a811c","source":{"kind":"arxiv","id":"1801.04869","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04869","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04869v1","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04869","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"pith_short_12","alias_value":"V6ANBIE5AM4M","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"V6ANBIE5AM4MTCC4","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"V6ANBIE5","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:V6ANBIE5AM4MTCC4353J7HKZEV","target":"record","payload":{"canonical_record":{"source":{"id":"1801.04869","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-01-15T16:37:53Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"a9e12ebd3c2d60b8bb9d859758913915e7e54b5d9ab7e90bd02d0ebd09274f32","abstract_canon_sha256":"9bfa45d4dc57b7d07be4c877eac0e1170e4c8879951661f316d4035afee87b22"},"schema_version":"1.0"},"canonical_sha256":"af80d0a09d0338c9885cdf769f9d592571eca902e5b05fec5b3d3bc53e0a811c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:27.146297Z","signature_b64":"BvMX2AvKEcsDgcAUZdmtLuv7fW0fsR5NAmxNKeO/Sip64z7FXK470f8tKwDIQIgbWlmBx9Ia3PPywe/R9TBSDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af80d0a09d0338c9885cdf769f9d592571eca902e5b05fec5b3d3bc53e0a811c","last_reissued_at":"2026-05-18T00:16:27.144995Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:27.144995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.04869","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":"2026-05-18T00:16:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jZ+JKwBumYsh53TarSSjNcDfx9YygpPLQQRH2l69H3kFMckcVoa+4R6XJIZTCUC8ep5b4t5tpAsMgooiuhXOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T05:02:21.902147Z"},"content_sha256":"0df9434e8dec0c368972f686e184427934583c26765cf8fe0161b926c096324e","schema_version":"1.0","event_id":"sha256:0df9434e8dec0c368972f686e184427934583c26765cf8fe0161b926c096324e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:V6ANBIE5AM4MTCC4353J7HKZEV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FFT-based solution of 2D and 3D magnetization problems in type-II superconductivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"physics.comp-ph","authors_text":"Leonid Prigozhin, Vladimir Sokolovsky","submitted_at":"2018-01-15T16:37:53Z","abstract_excerpt":"We consider the Fast Fourier Transform (FFT) based numerical method for thin film magnetization problems [Vestg{\\aa}rden and Johansen, SuST, 25 (2012) 104001], compare it with the finite element methods, and evaluate its accuracy. Proposed modifications of this method implementation ensure stable convergence of iterations and enhance its efficiency. A new method, also based on the FFT, is developed for 3D bulk magnetization problems. This method is based on a magnetic field formulation, different from the popular h-formulation of eddy current problems typically employed with the edge finite el"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04869","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:16:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N6TnrhxEMGKr2PGs2bYx+sOfD6FbM8udt9tByPGb2YhyQhNWHW7T2MiXsXeCO65awCpjuTRLBGclmPf88gHLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T05:02:21.902863Z"},"content_sha256":"ae61588bd37106cd6c91acef06afe9d3c975f27ab7a4749672227ef1d9ed54f9","schema_version":"1.0","event_id":"sha256:ae61588bd37106cd6c91acef06afe9d3c975f27ab7a4749672227ef1d9ed54f9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V6ANBIE5AM4MTCC4353J7HKZEV/bundle.json","state_url":"https://pith.science/pith/V6ANBIE5AM4MTCC4353J7HKZEV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V6ANBIE5AM4MTCC4353J7HKZEV/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":"2026-06-11T05:02:21Z","links":{"resolver":"https://pith.science/pith/V6ANBIE5AM4MTCC4353J7HKZEV","bundle":"https://pith.science/pith/V6ANBIE5AM4MTCC4353J7HKZEV/bundle.json","state":"https://pith.science/pith/V6ANBIE5AM4MTCC4353J7HKZEV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V6ANBIE5AM4MTCC4353J7HKZEV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:V6ANBIE5AM4MTCC4353J7HKZEV","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":"9bfa45d4dc57b7d07be4c877eac0e1170e4c8879951661f316d4035afee87b22","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-01-15T16:37:53Z","title_canon_sha256":"a9e12ebd3c2d60b8bb9d859758913915e7e54b5d9ab7e90bd02d0ebd09274f32"},"schema_version":"1.0","source":{"id":"1801.04869","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04869","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04869v1","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04869","created_at":"2026-05-18T00:16:27Z"},{"alias_kind":"pith_short_12","alias_value":"V6ANBIE5AM4M","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"V6ANBIE5AM4MTCC4","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"V6ANBIE5","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:ae61588bd37106cd6c91acef06afe9d3c975f27ab7a4749672227ef1d9ed54f9","target":"graph","created_at":"2026-05-18T00:16:27Z","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"},"paper":{"abstract_excerpt":"We consider the Fast Fourier Transform (FFT) based numerical method for thin film magnetization problems [Vestg{\\aa}rden and Johansen, SuST, 25 (2012) 104001], compare it with the finite element methods, and evaluate its accuracy. Proposed modifications of this method implementation ensure stable convergence of iterations and enhance its efficiency. A new method, also based on the FFT, is developed for 3D bulk magnetization problems. This method is based on a magnetic field formulation, different from the popular h-formulation of eddy current problems typically employed with the edge finite el","authors_text":"Leonid Prigozhin, Vladimir Sokolovsky","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-01-15T16:37:53Z","title":"FFT-based solution of 2D and 3D magnetization problems in type-II superconductivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04869","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":"sha256:0df9434e8dec0c368972f686e184427934583c26765cf8fe0161b926c096324e","target":"record","created_at":"2026-05-18T00:16:27Z","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":"9bfa45d4dc57b7d07be4c877eac0e1170e4c8879951661f316d4035afee87b22","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-01-15T16:37:53Z","title_canon_sha256":"a9e12ebd3c2d60b8bb9d859758913915e7e54b5d9ab7e90bd02d0ebd09274f32"},"schema_version":"1.0","source":{"id":"1801.04869","kind":"arxiv","version":1}},"canonical_sha256":"af80d0a09d0338c9885cdf769f9d592571eca902e5b05fec5b3d3bc53e0a811c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af80d0a09d0338c9885cdf769f9d592571eca902e5b05fec5b3d3bc53e0a811c","first_computed_at":"2026-05-18T00:16:27.144995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:27.144995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BvMX2AvKEcsDgcAUZdmtLuv7fW0fsR5NAmxNKeO/Sip64z7FXK470f8tKwDIQIgbWlmBx9Ia3PPywe/R9TBSDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:27.146297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.04869","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0df9434e8dec0c368972f686e184427934583c26765cf8fe0161b926c096324e","sha256:ae61588bd37106cd6c91acef06afe9d3c975f27ab7a4749672227ef1d9ed54f9"],"state_sha256":"6be1594d7d101565a17dd3c71b354b9ab924310b90f7e392ee416e72421b2f33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m4L2cPqwsWa89Cmsp/en8YcQNCI4gSSIOAV5X4A7vn/u2WVHwCJdB2n8Mey3zyfSdC0ec+fSKtjowhXTyuZWCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T05:02:21.906634Z","bundle_sha256":"39098d84366709fc28ef6a398371c684b5b54cb6e7459dfbe0f094b8100d6f42"}}