{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:CRTS7EEWGG5C7QJ73OILSTHKKT","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":"29c9bd756acf485412f43f49d87e274bea2030448a769ab18d95498fd155dac9","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-08-11T13:41:18Z","title_canon_sha256":"3488457be03c5db1bfef2ac99b357ac404c6eea26ad5e436aded71a7b4be9126"},"schema_version":"1.0","source":{"id":"1408.2399","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.2399","created_at":"2026-05-18T01:55:08Z"},{"alias_kind":"arxiv_version","alias_value":"1408.2399v1","created_at":"2026-05-18T01:55:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2399","created_at":"2026-05-18T01:55:08Z"},{"alias_kind":"pith_short_12","alias_value":"CRTS7EEWGG5C","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"CRTS7EEWGG5C7QJ7","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"CRTS7EEW","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:e479fe6a1ec34cd8a8ffb0e7335d7c81afc2b1f7eba2ceea478ad73d17cb331a","target":"graph","created_at":"2026-05-18T01:55:08Z","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 theoretically demonstrate the strong Purcell effect in $\\varepsilon$-near-zero ultra-anisotropic uniaxial metamaterials with elliptic isofrequency surface. Contrary to the hyperbolic metamaterials, the effect does not rely on the diverging density of states and evanescent waves. As a result, both the radiative decay rate and the far-field emission power are enhanced. The effect can be realized in the periodic layered metal-dielectric nanostructures with complex unit cell containing two different metallic layers.","authors_text":"A.A. Orlov, A.N. Poddubny, A.S. Shalin, A.V. Chebykin, P.A. Belov","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-08-11T13:41:18Z","title":"Strong Purcell effect in anisotropic $\\varepsilon$-near-zero metamaterials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2399","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":"sha256:7cd645f33604b9bf66a7fcce91dd45bc290562087b72acc068ea7cd47224541b","target":"record","created_at":"2026-05-18T01:55:08Z","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":"29c9bd756acf485412f43f49d87e274bea2030448a769ab18d95498fd155dac9","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-08-11T13:41:18Z","title_canon_sha256":"3488457be03c5db1bfef2ac99b357ac404c6eea26ad5e436aded71a7b4be9126"},"schema_version":"1.0","source":{"id":"1408.2399","kind":"arxiv","version":1}},"canonical_sha256":"14672f909631ba2fc13fdb90b94cea54e05ebe8a5ad167605de331b108b092f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14672f909631ba2fc13fdb90b94cea54e05ebe8a5ad167605de331b108b092f8","first_computed_at":"2026-05-18T01:55:08.387840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:08.387840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2dTAbazrHrGe2v47zzrAXJrTZQLh+RJgWKtYulDkRkIImHgGMUwTGoilYmps8BNbrHsv28y7UXVxUeVjUxkoBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:08.388469Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.2399","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7cd645f33604b9bf66a7fcce91dd45bc290562087b72acc068ea7cd47224541b","sha256:e479fe6a1ec34cd8a8ffb0e7335d7c81afc2b1f7eba2ceea478ad73d17cb331a"],"state_sha256":"446ff03088314d453e11d95ee1da6d5df8230a7d82a2f3fef200d5f9707d6f7c"}