{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SXIQT3GQNQVLG4MR762O35NVOZ","short_pith_number":"pith:SXIQT3GQ","canonical_record":{"source":{"id":"1301.3061","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-01-14T17:06:30Z","cross_cats_sorted":[],"title_canon_sha256":"49922c40524d8248da43e9177d5e151b4f2a5dfc910726b2c7a44db3eadb0a10","abstract_canon_sha256":"4a479a79b3fc9adf183fd71aee14254f52d94a71b5eed2acc030b99c1f251bd0"},"schema_version":"1.0"},"canonical_sha256":"95d109ecd06c2ab37191ffb4edf5b5764444327db66c6cb873174a3052c1d631","source":{"kind":"arxiv","id":"1301.3061","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3061","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3061v2","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3061","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"pith_short_12","alias_value":"SXIQT3GQNQVL","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SXIQT3GQNQVLG4MR","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SXIQT3GQ","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SXIQT3GQNQVLG4MR762O35NVOZ","target":"record","payload":{"canonical_record":{"source":{"id":"1301.3061","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-01-14T17:06:30Z","cross_cats_sorted":[],"title_canon_sha256":"49922c40524d8248da43e9177d5e151b4f2a5dfc910726b2c7a44db3eadb0a10","abstract_canon_sha256":"4a479a79b3fc9adf183fd71aee14254f52d94a71b5eed2acc030b99c1f251bd0"},"schema_version":"1.0"},"canonical_sha256":"95d109ecd06c2ab37191ffb4edf5b5764444327db66c6cb873174a3052c1d631","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:25.778488Z","signature_b64":"i37D0mW0wNZTW0VdubtarxRYoIx79TH3nlQZeQomOkK7+y2HxNL6LTaykaXeoN8h9UTvDUVDP9L9PYrlSncdCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"95d109ecd06c2ab37191ffb4edf5b5764444327db66c6cb873174a3052c1d631","last_reissued_at":"2026-05-18T02:39:25.777893Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:25.777893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.3061","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:39:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qL0vZDJ7zzBhoUIqigFFXZCV38vmJ3Br+e48fPgUjJqou+HrFXMR5uYFqeyq86cjLx+nGSFPF7IQpH2XLdF9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:06:47.745901Z"},"content_sha256":"6fa9cdcf9723ccb5a4a79f7acd487a9b2f9ccd72f7aa292a699c1f8a09a86c47","schema_version":"1.0","event_id":"sha256:6fa9cdcf9723ccb5a4a79f7acd487a9b2f9ccd72f7aa292a699c1f8a09a86c47"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SXIQT3GQNQVLG4MR762O35NVOZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"magnum.fe: A micromagnetic finite-element simulation code based on FEniCS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.comp-ph","authors_text":"Andr\\'e Drews, Claas Abert, Dieter Suess, Florian Bruckner, Lukas Exl","submitted_at":"2013-01-14T17:06:30Z","abstract_excerpt":"We have developed a finite-element micromagnetic simulation code based on the FEniCS package called magnum.fe. Here we describe the numerical methods that are applied as well as their implementation with FEniCS. We apply a transformation method for the solution of the demagnetization-field problem. A semi-implicit weak formulation is used for the integration of the Landau-Lifshitz-Gilbert equation. Numerical experiments show the validity of simulation results. magnum.fe is open source and well documented. The broad feature range of the FEniCS package makes magnum.fe a good choice for the imple"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3061","kind":"arxiv","version":2},"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":"2026-05-18T02:39:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OjXzuopm3ZZbGc8uXWghRvJOu6+ktz5Law1PXDGyRK5rgChhBTtDGraTh5TE53tjxvhZalqJl/jFB9UHcm2WCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:06:47.746275Z"},"content_sha256":"a3c817cf78a4158b29b644607508f7fdf0584ce12ad8f9e46ccd2d3ce5740432","schema_version":"1.0","event_id":"sha256:a3c817cf78a4158b29b644607508f7fdf0584ce12ad8f9e46ccd2d3ce5740432"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SXIQT3GQNQVLG4MR762O35NVOZ/bundle.json","state_url":"https://pith.science/pith/SXIQT3GQNQVLG4MR762O35NVOZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SXIQT3GQNQVLG4MR762O35NVOZ/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":"2026-05-30T15:06:47Z","links":{"resolver":"https://pith.science/pith/SXIQT3GQNQVLG4MR762O35NVOZ","bundle":"https://pith.science/pith/SXIQT3GQNQVLG4MR762O35NVOZ/bundle.json","state":"https://pith.science/pith/SXIQT3GQNQVLG4MR762O35NVOZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SXIQT3GQNQVLG4MR762O35NVOZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SXIQT3GQNQVLG4MR762O35NVOZ","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":"4a479a79b3fc9adf183fd71aee14254f52d94a71b5eed2acc030b99c1f251bd0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-01-14T17:06:30Z","title_canon_sha256":"49922c40524d8248da43e9177d5e151b4f2a5dfc910726b2c7a44db3eadb0a10"},"schema_version":"1.0","source":{"id":"1301.3061","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.3061","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"arxiv_version","alias_value":"1301.3061v2","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.3061","created_at":"2026-05-18T02:39:25Z"},{"alias_kind":"pith_short_12","alias_value":"SXIQT3GQNQVL","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SXIQT3GQNQVLG4MR","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SXIQT3GQ","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:a3c817cf78a4158b29b644607508f7fdf0584ce12ad8f9e46ccd2d3ce5740432","target":"graph","created_at":"2026-05-18T02:39:25Z","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 have developed a finite-element micromagnetic simulation code based on the FEniCS package called magnum.fe. Here we describe the numerical methods that are applied as well as their implementation with FEniCS. We apply a transformation method for the solution of the demagnetization-field problem. A semi-implicit weak formulation is used for the integration of the Landau-Lifshitz-Gilbert equation. Numerical experiments show the validity of simulation results. magnum.fe is open source and well documented. The broad feature range of the FEniCS package makes magnum.fe a good choice for the imple","authors_text":"Andr\\'e Drews, Claas Abert, Dieter Suess, Florian Bruckner, Lukas Exl","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-01-14T17:06:30Z","title":"magnum.fe: A micromagnetic finite-element simulation code based on FEniCS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.3061","kind":"arxiv","version":2},"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":"sha256:6fa9cdcf9723ccb5a4a79f7acd487a9b2f9ccd72f7aa292a699c1f8a09a86c47","target":"record","created_at":"2026-05-18T02:39:25Z","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":"4a479a79b3fc9adf183fd71aee14254f52d94a71b5eed2acc030b99c1f251bd0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-01-14T17:06:30Z","title_canon_sha256":"49922c40524d8248da43e9177d5e151b4f2a5dfc910726b2c7a44db3eadb0a10"},"schema_version":"1.0","source":{"id":"1301.3061","kind":"arxiv","version":2}},"canonical_sha256":"95d109ecd06c2ab37191ffb4edf5b5764444327db66c6cb873174a3052c1d631","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"95d109ecd06c2ab37191ffb4edf5b5764444327db66c6cb873174a3052c1d631","first_computed_at":"2026-05-18T02:39:25.777893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:25.777893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i37D0mW0wNZTW0VdubtarxRYoIx79TH3nlQZeQomOkK7+y2HxNL6LTaykaXeoN8h9UTvDUVDP9L9PYrlSncdCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:25.778488Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.3061","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6fa9cdcf9723ccb5a4a79f7acd487a9b2f9ccd72f7aa292a699c1f8a09a86c47","sha256:a3c817cf78a4158b29b644607508f7fdf0584ce12ad8f9e46ccd2d3ce5740432"],"state_sha256":"23138cef76a812e075797b45043e5980c175b3be65e68741b1e9c45dbfea2cca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2y8ISgI6gdVPx3Qntm4PgX2vZalSL9wl0CD+v+XsIFdTEI12eumHGh4oUqvYWYrYqmAUXoV/DtmANjclwiPZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:06:47.748621Z","bundle_sha256":"6d330cd14fb9609528e75e33507f9b1d67e642dc270ed645e422030497261842"}}