{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6XJL67TEE7MA7RW6CUXQBTKOUY","short_pith_number":"pith:6XJL67TE","canonical_record":{"source":{"id":"1504.05695","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-22T08:47:18Z","cross_cats_sorted":[],"title_canon_sha256":"a6656c62925dcd1de3f01d92d89adfdcc0c495a7c41633a417ac6e32c6228296","abstract_canon_sha256":"7c6f568c449c534d2c1496db1416317214e1cf1e67963d1d9a0dfcadec68ae95"},"schema_version":"1.0"},"canonical_sha256":"f5d2bf7e6427d80fc6de152f00cd4ea61768998d95225b6c62d5cc7a0fc80b3c","source":{"kind":"arxiv","id":"1504.05695","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05695","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05695v1","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05695","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"pith_short_12","alias_value":"6XJL67TEE7MA","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6XJL67TEE7MA7RW6","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6XJL67TE","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6XJL67TEE7MA7RW6CUXQBTKOUY","target":"record","payload":{"canonical_record":{"source":{"id":"1504.05695","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-22T08:47:18Z","cross_cats_sorted":[],"title_canon_sha256":"a6656c62925dcd1de3f01d92d89adfdcc0c495a7c41633a417ac6e32c6228296","abstract_canon_sha256":"7c6f568c449c534d2c1496db1416317214e1cf1e67963d1d9a0dfcadec68ae95"},"schema_version":"1.0"},"canonical_sha256":"f5d2bf7e6427d80fc6de152f00cd4ea61768998d95225b6c62d5cc7a0fc80b3c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:28:56.607024Z","signature_b64":"0cFEpfyUl4k7vyXyMQPP4VYCqHoDDyrYBHo0zYTPyXgYjptgwXtE4Jw7axxYhaGDPTY6izT2feL+aewA5fnSDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5d2bf7e6427d80fc6de152f00cd4ea61768998d95225b6c62d5cc7a0fc80b3c","last_reissued_at":"2026-05-18T01:28:56.606291Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:28:56.606291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.05695","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:28:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WzT/ASzY6MQUwyt853l7e1nrU6Bh7sKFCVixEKRmb/CeorUL8mWkelBdbsiMPUJcVxHtape+ksCKexLpYTz6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:59:19.052089Z"},"content_sha256":"04262d639a0e8be9f038351e484f2e3603ec890381dc1f8affbf449f5910d8b3","schema_version":"1.0","event_id":"sha256:04262d639a0e8be9f038351e484f2e3603ec890381dc1f8affbf449f5910d8b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6XJL67TEE7MA7RW6CUXQBTKOUY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene-based perfect optical absorbers harnessing guided mode resonances","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"A. D Orazio, D. de Ceglia, G. Bruno, G. V. Bianco, M. A. Vincenti, M. De Vittorio, M. Grande, M. Scalora, N. Akozbek, T. Stomeo, V. Petruzzelli","submitted_at":"2015-04-22T08:47:18Z","abstract_excerpt":"We numerically and experimentally investigate graphene-based optical absorbers that exploit guided mode resonances (GMRs) achieving perfect absorption over a bandwidth of few nanometers (over the visible and near-infrared ranges) with a 40-fold increase of the monolayer graphene absorption. We analyze the influence of the geometrical parameters on the absorption rate and the angular response for oblique incidence. Finally, we experimentally verify the theoretical predictions in a one-dimensional, dielectric grating and placing it near either a metallic or a dielectric mirror."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05695","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:28:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lwx7Ec8EqW1WXITkaDTm7Dhur4gM6OXXgMFw7O+yFMPVndOTO+uW1/hHcvSKwYSPEyMdbWHxZQ0avPul3nYdAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:59:19.052760Z"},"content_sha256":"122c6c8246a27bfefb3260ee1ceebbf85a35ee1a5d552d534dfe3221bf79a1c9","schema_version":"1.0","event_id":"sha256:122c6c8246a27bfefb3260ee1ceebbf85a35ee1a5d552d534dfe3221bf79a1c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/bundle.json","state_url":"https://pith.science/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-26T12:59:19Z","links":{"resolver":"https://pith.science/pith/6XJL67TEE7MA7RW6CUXQBTKOUY","bundle":"https://pith.science/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/bundle.json","state":"https://pith.science/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6XJL67TEE7MA7RW6CUXQBTKOUY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6XJL67TEE7MA7RW6CUXQBTKOUY","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":"7c6f568c449c534d2c1496db1416317214e1cf1e67963d1d9a0dfcadec68ae95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-22T08:47:18Z","title_canon_sha256":"a6656c62925dcd1de3f01d92d89adfdcc0c495a7c41633a417ac6e32c6228296"},"schema_version":"1.0","source":{"id":"1504.05695","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05695","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05695v1","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05695","created_at":"2026-05-18T01:28:56Z"},{"alias_kind":"pith_short_12","alias_value":"6XJL67TEE7MA","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6XJL67TEE7MA7RW6","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6XJL67TE","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:122c6c8246a27bfefb3260ee1ceebbf85a35ee1a5d552d534dfe3221bf79a1c9","target":"graph","created_at":"2026-05-18T01:28:56Z","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 numerically and experimentally investigate graphene-based optical absorbers that exploit guided mode resonances (GMRs) achieving perfect absorption over a bandwidth of few nanometers (over the visible and near-infrared ranges) with a 40-fold increase of the monolayer graphene absorption. We analyze the influence of the geometrical parameters on the absorption rate and the angular response for oblique incidence. Finally, we experimentally verify the theoretical predictions in a one-dimensional, dielectric grating and placing it near either a metallic or a dielectric mirror.","authors_text":"A. D Orazio, D. de Ceglia, G. Bruno, G. V. Bianco, M. A. Vincenti, M. De Vittorio, M. Grande, M. Scalora, N. Akozbek, T. Stomeo, V. Petruzzelli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-22T08:47:18Z","title":"Graphene-based perfect optical absorbers harnessing guided mode resonances"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05695","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":"sha256:04262d639a0e8be9f038351e484f2e3603ec890381dc1f8affbf449f5910d8b3","target":"record","created_at":"2026-05-18T01:28:56Z","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":"7c6f568c449c534d2c1496db1416317214e1cf1e67963d1d9a0dfcadec68ae95","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-04-22T08:47:18Z","title_canon_sha256":"a6656c62925dcd1de3f01d92d89adfdcc0c495a7c41633a417ac6e32c6228296"},"schema_version":"1.0","source":{"id":"1504.05695","kind":"arxiv","version":1}},"canonical_sha256":"f5d2bf7e6427d80fc6de152f00cd4ea61768998d95225b6c62d5cc7a0fc80b3c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5d2bf7e6427d80fc6de152f00cd4ea61768998d95225b6c62d5cc7a0fc80b3c","first_computed_at":"2026-05-18T01:28:56.606291Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:56.606291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0cFEpfyUl4k7vyXyMQPP4VYCqHoDDyrYBHo0zYTPyXgYjptgwXtE4Jw7axxYhaGDPTY6izT2feL+aewA5fnSDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:56.607024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.05695","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:04262d639a0e8be9f038351e484f2e3603ec890381dc1f8affbf449f5910d8b3","sha256:122c6c8246a27bfefb3260ee1ceebbf85a35ee1a5d552d534dfe3221bf79a1c9"],"state_sha256":"a48d2d0e0a16abbb82585cb1d89ebbf172365235843c18f6476ff5c9dc065009"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zt244ODtx7WjsimrgLJxYbI0mT8XK4GEPTxnNa/ysOEGyUhnwJYln58DEpFXUvvJo2/0YoJiMJAAv1Gz7U37DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:59:19.056032Z","bundle_sha256":"7e0d9bff62fa64268d3a72f344898e9bb4e44b2aaa6a8d902148ee4031544850"}}