{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LW3A3CVAMPLH4KKFLTQ3CFUMA3","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":"49b68ad3682a036b7332b5ff411de809e5bb17d310f7cfb8ca72239d05333609","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-03-06T01:44:53Z","title_canon_sha256":"2a0102d1f783eb6ca4dabe77fc2108eb9feebb6e629c7f745ef310a9d5535b7f"},"schema_version":"1.0","source":{"id":"1203.1083","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.1083","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"1203.1083v1","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.1083","created_at":"2026-05-18T01:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"LW3A3CVAMPLH","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LW3A3CVAMPLH4KKF","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LW3A3CVA","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:06906d00b016203e09da64cf7d6386ad0a798d49ef78453e421b5fe549b715dc","target":"graph","created_at":"2026-05-18T01:58:14Z","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":"A switchable hyperbolic material (SHM) is investigated, with which one can turn on or off the hyperbolic dispersion of the material via magnetic control. The SHM has simple structure, with a one-dimensional periodic stacking of dielectric layer and gyromagnetic layer. The hyperbolic dispersion of SHM is due to the negative effective permeability of gyromagnetic layers, and it can be transformed into a regular circular dispersion when the d.c. magnetic field is switched off. This switchable dispersion transition is reversible, which may have great potential applications in many fields.","authors_text":"Wei Li, Xiaogang Zhang, Xunya Jiang, Zheng Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-03-06T01:44:53Z","title":"Switchable Hyperbolic Metamaterials With Magnetic Control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.1083","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:b5f413bdb13a2205f83d9312041d652a956c78214e1b69fd76b4b56ad741e765","target":"record","created_at":"2026-05-18T01:58:14Z","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":"49b68ad3682a036b7332b5ff411de809e5bb17d310f7cfb8ca72239d05333609","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-03-06T01:44:53Z","title_canon_sha256":"2a0102d1f783eb6ca4dabe77fc2108eb9feebb6e629c7f745ef310a9d5535b7f"},"schema_version":"1.0","source":{"id":"1203.1083","kind":"arxiv","version":1}},"canonical_sha256":"5db60d8aa063d67e29455ce1b1168c06c9d1625fece367182af755875911d02b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5db60d8aa063d67e29455ce1b1168c06c9d1625fece367182af755875911d02b","first_computed_at":"2026-05-18T01:58:14.541354Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:14.541354Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VAj09p5zv2UqF30lAq/lNX0f6Gjl95GlWUiBWZCwriGZI+tVEXLX75zVei7rSsus+qsn/aZI/TeMjuzX4wiJCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:14.542035Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.1083","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5f413bdb13a2205f83d9312041d652a956c78214e1b69fd76b4b56ad741e765","sha256:06906d00b016203e09da64cf7d6386ad0a798d49ef78453e421b5fe549b715dc"],"state_sha256":"c6384b8e1c36f310c987a902724fac9a4c04c3ec02db48bfe73f63d125e80e34"}