{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WJZSAJNSTEDRRYPTAZBV6KFYLR","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":"0e7f3007558bc5173a02c9ef2bcb538068fe360b62692e578a2ef7a4a7fd8c10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-22T03:34:05Z","title_canon_sha256":"a974ba70b463c1a1aa1b33769f31f6db62f7edb6757af90bd19cbb46fead1fa5"},"schema_version":"1.0","source":{"id":"1212.5651","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.5651","created_at":"2026-05-18T02:25:05Z"},{"alias_kind":"arxiv_version","alias_value":"1212.5651v1","created_at":"2026-05-18T02:25:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.5651","created_at":"2026-05-18T02:25:05Z"},{"alias_kind":"pith_short_12","alias_value":"WJZSAJNSTEDR","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WJZSAJNSTEDRRYPT","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WJZSAJNS","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:29e332ba1a252702564e13d8656b3040c146b58764b8e87aa586a31ab72ed825","target":"graph","created_at":"2026-05-18T02:25:05Z","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 demonstrate that the toroidal dipolar response can be realized in the optical regime by designing a feasible nanostructured metamaterial, comprising asymmetric double-bar magnetic resonators assembled into a toroid-like configuration. It is confirmed numerically that an optical toroidal dipolar moment dominates over other moments. This response is characterized by a strong confinement of an E-field component at the toroid center, oriented perpendicular to the H-vortex plane. The resonance-enhanced optical toroidal response can provide an experimental avenue for various interesting optical p","authors_text":"Changgui Lu, Jia-Qi Li, Junsuk Rho, J. Zhu, Xiaobo Yin, X. Zhang, Zheng-Gao Dong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-22T03:34:05Z","title":"Optical toroidal dipolar response by an asymmetric double-bar metamaterial"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.5651","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:fee142a506cf3abbc6730f135f4fdb51496d6b0e4964a4157ffc65d47d3ebad8","target":"record","created_at":"2026-05-18T02:25:05Z","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":"0e7f3007558bc5173a02c9ef2bcb538068fe360b62692e578a2ef7a4a7fd8c10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-12-22T03:34:05Z","title_canon_sha256":"a974ba70b463c1a1aa1b33769f31f6db62f7edb6757af90bd19cbb46fead1fa5"},"schema_version":"1.0","source":{"id":"1212.5651","kind":"arxiv","version":1}},"canonical_sha256":"b2732025b2990718e1f306435f28b85c467b835702e5f9a358e10c274c9d2867","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2732025b2990718e1f306435f28b85c467b835702e5f9a358e10c274c9d2867","first_computed_at":"2026-05-18T02:25:05.335972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:05.335972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eCRKTJaBNkqPTptvrwiFEtjDOEUzz+Vze9dlT2tWaPEpW0GbiXbhaXmRHsyIprrg74JPwnzE/20G9Puj7pV1DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:05.336358Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.5651","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fee142a506cf3abbc6730f135f4fdb51496d6b0e4964a4157ffc65d47d3ebad8","sha256:29e332ba1a252702564e13d8656b3040c146b58764b8e87aa586a31ab72ed825"],"state_sha256":"7eb9ce6b266e9e58abfbd6b00d72b28567a006c3d9acde8acc0a10f3f6af7a64"}