{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MKGTQY227SZNTSHKGKWIOSOWYT","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":"63d123d946def132a9d25c9798aad639fc86cf6548e89a9d3699fcf1de5f55d7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-02-22T06:02:58Z","title_canon_sha256":"c479f0f2f7b9637aae24095117c1b56e0a17ca1103b17bfd36492b8790e75d9d"},"schema_version":"1.0","source":{"id":"1302.5489","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.5489","created_at":"2026-05-18T03:32:46Z"},{"alias_kind":"arxiv_version","alias_value":"1302.5489v1","created_at":"2026-05-18T03:32:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.5489","created_at":"2026-05-18T03:32:46Z"},{"alias_kind":"pith_short_12","alias_value":"MKGTQY227SZN","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MKGTQY227SZNTSHK","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MKGTQY22","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:e83e3cc8ef68c74b134a5f4f6d15a1370b1aa0b47982ae745e3cbc8a5737eed6","target":"graph","created_at":"2026-05-18T03:32:46Z","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":"In this paper, the implementation of open-source parallel-version FDTD (Finite-Difference-Time-Domain) software, MEEP, on Texas A&M supercomputers and commercial finite element package, COMSOL, on a single workstation for the design design of nano-optical device is reported. The the computer architecture and performance of both numerical methods on the same design will be briefly described.","authors_text":"K. Chang, Y. Liu","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-02-22T06:02:58Z","title":"Nano-Optical Device Design with the Use of Open-Source Parallel Version FDTD and Commercial Finite Element Package"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.5489","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":"sha256:625f2c743892ef695f773f22b84f27121b79d7353cb55afda2c9ab1ecf1c4ac5","target":"record","created_at":"2026-05-18T03:32:46Z","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":"63d123d946def132a9d25c9798aad639fc86cf6548e89a9d3699fcf1de5f55d7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2013-02-22T06:02:58Z","title_canon_sha256":"c479f0f2f7b9637aae24095117c1b56e0a17ca1103b17bfd36492b8790e75d9d"},"schema_version":"1.0","source":{"id":"1302.5489","kind":"arxiv","version":1}},"canonical_sha256":"628d38635afcb2d9c8ea32ac8749d6c4c55a649cdc9f3f34f95ff49753fbd59c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"628d38635afcb2d9c8ea32ac8749d6c4c55a649cdc9f3f34f95ff49753fbd59c","first_computed_at":"2026-05-18T03:32:46.666365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:46.666365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SyIOhutocLiPi47t9nVSiaQu8mqYlE5hl7XdUA8LANwHXioh27V9LwHsuLvTeFGdZPNEGhFpIJQc3HDeb65tBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:46.666930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.5489","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:625f2c743892ef695f773f22b84f27121b79d7353cb55afda2c9ab1ecf1c4ac5","sha256:e83e3cc8ef68c74b134a5f4f6d15a1370b1aa0b47982ae745e3cbc8a5737eed6"],"state_sha256":"b45b98fa3f2dd2a674bf015cabbbb8b3471ac2560ece0762fcf0af24b0c26e4a"}