{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CFJCD4AKV4DJ7C5SVRJR7O6G4X","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":"efe4173162ac8c65940b1095bfdc3df4b0ca86703284c53ff4bbbcf8072f9c03","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-20T22:36:54Z","title_canon_sha256":"9c4267df0dd0d5ec1b636f95a05536c30cb7733c1fc1cc0e9216bde4241bdf0e"},"schema_version":"1.0","source":{"id":"1707.06717","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06717","created_at":"2026-05-18T00:39:51Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06717v1","created_at":"2026-05-18T00:39:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06717","created_at":"2026-05-18T00:39:51Z"},{"alias_kind":"pith_short_12","alias_value":"CFJCD4AKV4DJ","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CFJCD4AKV4DJ7C5S","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CFJCD4AK","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:30713f7648f140f22cfb7bb52943680dacd5595e1979836c8b6909c6b5443d8d","target":"graph","created_at":"2026-05-18T00:39:51Z","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":"High-reflectance in many state-of-the-art optical devices is achieved with noble metals. However, metals are limited by losses, and for certain applications, by their high mass density. Using a combination of ab initio and optical transfer matrix calculations, we evaluate the behavior of graphene-based \\AA-scale metamaterials and find that they could act as nearly-perfect reflectors in the mid-long wave infrared (IR) range. The low density of states for electron-phonon scattering and interband excitations leads to unprecedented optical properties for graphene heterostructures, especially alter","authors_text":"Georgia T. Papadakis, Hrvoje Buljan, Marin Soljacic, Nader Engheta, Nicholas Rivera, Prineha Narang, Ravishankar Sundararaman","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-20T22:36:54Z","title":"Ultra-light \\AA-scale Optimal Optical Reflectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06717","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":"sha256:0fdd89a774142114949bf06b5e97c638bb8235fe345633fc71bb307497ffb4ca","target":"record","created_at":"2026-05-18T00:39:51Z","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":"efe4173162ac8c65940b1095bfdc3df4b0ca86703284c53ff4bbbcf8072f9c03","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-07-20T22:36:54Z","title_canon_sha256":"9c4267df0dd0d5ec1b636f95a05536c30cb7733c1fc1cc0e9216bde4241bdf0e"},"schema_version":"1.0","source":{"id":"1707.06717","kind":"arxiv","version":1}},"canonical_sha256":"115221f00aaf069f8bb2ac531fbbc6e5ffebbdab432140706b23b827e930b831","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"115221f00aaf069f8bb2ac531fbbc6e5ffebbdab432140706b23b827e930b831","first_computed_at":"2026-05-18T00:39:51.865530Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:51.865530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xVHsV6xun+EXq7RzuTfpGmIsxcxQSW10W35fND+XbZN2h96++s5LAzcTElD7KGeypcN1HxmHg0CaPihCNPVGDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:51.866198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06717","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0fdd89a774142114949bf06b5e97c638bb8235fe345633fc71bb307497ffb4ca","sha256:30713f7648f140f22cfb7bb52943680dacd5595e1979836c8b6909c6b5443d8d"],"state_sha256":"78d5704192041c3b9f98b880ba9c409b47f3f4347df7da8d5c303040675639c8"}