{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IX5CWD5HIWW3SQPT24VKPPE4QP","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":"fb032c2097aab4c3743af7174dd36d4be8bf5e0e4edac22d08c9ee87b69f994d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-11-06T22:54:01Z","title_canon_sha256":"111b7c3128b4491e773fe5bdd7bd678265485d8edb35cf3f1c0a5aa9c8c751fc"},"schema_version":"1.0","source":{"id":"1711.02210","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.02210","created_at":"2026-05-18T00:24:48Z"},{"alias_kind":"arxiv_version","alias_value":"1711.02210v2","created_at":"2026-05-18T00:24:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.02210","created_at":"2026-05-18T00:24:48Z"},{"alias_kind":"pith_short_12","alias_value":"IX5CWD5HIWW3","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IX5CWD5HIWW3SQPT","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IX5CWD5H","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:263cb12523a6e7ad395632336f06de7875073c4c73c985f0ab9d859188871268","target":"graph","created_at":"2026-05-18T00:24:48Z","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 analytically and numerically that the dispersive Dirac cone emulating an epsilon-near-zero (ENZ) behavior is a universal property within a family of plasmonic crystals consisting of two-dimensional (2D) metals. Our starting point is a periodic array of 2D metallic sheets embedded in an inhomogeneous and anisotropic dielectric host that allows for propagation of transverse-magnetic (TM) polarized waves. By invoking a systematic bifurcation argument for arbitrary dielectric profiles in one spatial dimension, we show how TM Bloch waves experience an effective dielectric function th","authors_text":"Dionisios Margetis, Efthimios Kaxiras, Marios Mattheakis, Matthias Maier, Mitchell Luskin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-11-06T22:54:01Z","title":"Universal behavior of dispersive Dirac cone in gradient-index plasmonic metamaterials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.02210","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":"sha256:0b285ba06cb212d4ac33f71a7709f6c152f2cfe82e5ff34878a49391cced6ec1","target":"record","created_at":"2026-05-18T00:24:48Z","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":"fb032c2097aab4c3743af7174dd36d4be8bf5e0e4edac22d08c9ee87b69f994d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-11-06T22:54:01Z","title_canon_sha256":"111b7c3128b4491e773fe5bdd7bd678265485d8edb35cf3f1c0a5aa9c8c751fc"},"schema_version":"1.0","source":{"id":"1711.02210","kind":"arxiv","version":2}},"canonical_sha256":"45fa2b0fa745adb941f3d72aa7bc9c83d12044bda172df9b66d416d71f9973ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45fa2b0fa745adb941f3d72aa7bc9c83d12044bda172df9b66d416d71f9973ee","first_computed_at":"2026-05-18T00:24:48.507991Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:48.507991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1y7Tv/8obn3afXLNcHRhCsO2hpzbtAYWorcy5CpffZapyyydPC9PxuHnyBbV+qvLUM+gvzVAsehjuSzKO7zQAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:48.508802Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.02210","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b285ba06cb212d4ac33f71a7709f6c152f2cfe82e5ff34878a49391cced6ec1","sha256:263cb12523a6e7ad395632336f06de7875073c4c73c985f0ab9d859188871268"],"state_sha256":"6dd83d62238c096f7a35d4cac169dce04cc99751f0f310161ccb0cfb74050a20"}