{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SOAPVOGMOU3UURUKVWKVBADJR2","short_pith_number":"pith:SOAPVOGM","canonical_record":{"source":{"id":"1304.4419","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-04-16T12:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"f7f4443472c7e6006ef88317b20db340c2edb079884ea55419199e9fbed7f4ac","abstract_canon_sha256":"0e365b754746c3cca578da2f7acee26b3d36820c71ac0a8ed66a64964ee237b8"},"schema_version":"1.0"},"canonical_sha256":"9380fab8cc75374a468aad955080698eb509b1dd9cf7336b64d3fadd1d56ab07","source":{"kind":"arxiv","id":"1304.4419","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4419","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4419v4","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4419","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"SOAPVOGMOU3U","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SOAPVOGMOU3UURUK","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SOAPVOGM","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SOAPVOGMOU3UURUKVWKVBADJR2","target":"record","payload":{"canonical_record":{"source":{"id":"1304.4419","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-04-16T12:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"f7f4443472c7e6006ef88317b20db340c2edb079884ea55419199e9fbed7f4ac","abstract_canon_sha256":"0e365b754746c3cca578da2f7acee26b3d36820c71ac0a8ed66a64964ee237b8"},"schema_version":"1.0"},"canonical_sha256":"9380fab8cc75374a468aad955080698eb509b1dd9cf7336b64d3fadd1d56ab07","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:53.668275Z","signature_b64":"wraMBNeppNiQ7mNS5ihh0LSt2jk9vm+789tmysReMF8Ydw0OGnvqs+3Tj2hLsBgBJKw3noFuBDNpLjzrkMb3Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9380fab8cc75374a468aad955080698eb509b1dd9cf7336b64d3fadd1d56ab07","last_reissued_at":"2026-05-18T03:24:53.667640Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:53.667640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.4419","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"99Hg2IzFQhcM3Fbzphy4uZRL86IqNEC2+ESKBjHzyrcFEPGejCXFS7L16PUpXb4g/bkgZ5hQImz6pMW1EGLEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:58:45.764500Z"},"content_sha256":"83d27b9f1e9ab5d912d803edffd058d10ee5e457a441508512ee2812ca6e3af1","schema_version":"1.0","event_id":"sha256:83d27b9f1e9ab5d912d803edffd058d10ee5e457a441508512ee2812ca6e3af1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SOAPVOGMOU3UURUKVWKVBADJR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene Antennas: Can Integration and Reconfigurability Compensate for the Loss?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Eduardo Carrasco, Juan Sebastian Gomez-Diaz, Julien Perruisseau-Carrier, Michele Tamagnone","submitted_at":"2013-04-16T12:47:33Z","abstract_excerpt":"In this opening presentation we will first recall the main characteristics of graphene conductivity and electromagnetic wave propagation on graphene-based structures. Based on these observations and different graphene antenna simulations from microwave to Terahertz, we will discuss the issue of antenna efficiency, integration and reconfigurability, as function of the operation frequency range. While the applicability of graphene for antennas at microwave appears limited to particular cases where very low efficiency can be tolerated for integration or transparency purpose, the plasmonic nature "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4419","kind":"arxiv","version":4},"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":"2026-05-18T03:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BkqTPYSpbDrLsvV3qaw5BTx/zOhZZ50ce7fR9GMX6sI1MfYtoYMZjbjJGlE+pqK40ZBqwvtZArhPhp0RJtAuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:58:45.765358Z"},"content_sha256":"b7a0621151c64ecc3024892c3469c43fe501d5c85bf1492bb2da526ff98af6fd","schema_version":"1.0","event_id":"sha256:b7a0621151c64ecc3024892c3469c43fe501d5c85bf1492bb2da526ff98af6fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SOAPVOGMOU3UURUKVWKVBADJR2/bundle.json","state_url":"https://pith.science/pith/SOAPVOGMOU3UURUKVWKVBADJR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SOAPVOGMOU3UURUKVWKVBADJR2/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":"2026-05-25T23:58:45Z","links":{"resolver":"https://pith.science/pith/SOAPVOGMOU3UURUKVWKVBADJR2","bundle":"https://pith.science/pith/SOAPVOGMOU3UURUKVWKVBADJR2/bundle.json","state":"https://pith.science/pith/SOAPVOGMOU3UURUKVWKVBADJR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SOAPVOGMOU3UURUKVWKVBADJR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SOAPVOGMOU3UURUKVWKVBADJR2","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":"0e365b754746c3cca578da2f7acee26b3d36820c71ac0a8ed66a64964ee237b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-04-16T12:47:33Z","title_canon_sha256":"f7f4443472c7e6006ef88317b20db340c2edb079884ea55419199e9fbed7f4ac"},"schema_version":"1.0","source":{"id":"1304.4419","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.4419","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1304.4419v4","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.4419","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"SOAPVOGMOU3U","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SOAPVOGMOU3UURUK","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SOAPVOGM","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:b7a0621151c64ecc3024892c3469c43fe501d5c85bf1492bb2da526ff98af6fd","target":"graph","created_at":"2026-05-18T03:24:53Z","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":"In this opening presentation we will first recall the main characteristics of graphene conductivity and electromagnetic wave propagation on graphene-based structures. Based on these observations and different graphene antenna simulations from microwave to Terahertz, we will discuss the issue of antenna efficiency, integration and reconfigurability, as function of the operation frequency range. While the applicability of graphene for antennas at microwave appears limited to particular cases where very low efficiency can be tolerated for integration or transparency purpose, the plasmonic nature ","authors_text":"Eduardo Carrasco, Juan Sebastian Gomez-Diaz, Julien Perruisseau-Carrier, Michele Tamagnone","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-04-16T12:47:33Z","title":"Graphene Antennas: Can Integration and Reconfigurability Compensate for the Loss?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.4419","kind":"arxiv","version":4},"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":"sha256:83d27b9f1e9ab5d912d803edffd058d10ee5e457a441508512ee2812ca6e3af1","target":"record","created_at":"2026-05-18T03:24:53Z","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":"0e365b754746c3cca578da2f7acee26b3d36820c71ac0a8ed66a64964ee237b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-04-16T12:47:33Z","title_canon_sha256":"f7f4443472c7e6006ef88317b20db340c2edb079884ea55419199e9fbed7f4ac"},"schema_version":"1.0","source":{"id":"1304.4419","kind":"arxiv","version":4}},"canonical_sha256":"9380fab8cc75374a468aad955080698eb509b1dd9cf7336b64d3fadd1d56ab07","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9380fab8cc75374a468aad955080698eb509b1dd9cf7336b64d3fadd1d56ab07","first_computed_at":"2026-05-18T03:24:53.667640Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:53.667640Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wraMBNeppNiQ7mNS5ihh0LSt2jk9vm+789tmysReMF8Ydw0OGnvqs+3Tj2hLsBgBJKw3noFuBDNpLjzrkMb3Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:53.668275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.4419","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83d27b9f1e9ab5d912d803edffd058d10ee5e457a441508512ee2812ca6e3af1","sha256:b7a0621151c64ecc3024892c3469c43fe501d5c85bf1492bb2da526ff98af6fd"],"state_sha256":"3f6c0cdd769dea6290af822e1ac14c06b5c621ec591459865dce12cef639269c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SoVxvCjk7Scod9WlbrIBNmEUfutVsJyceRd/QwKAb1qF0+XJw1WYmsfQLBFWkWF32n2rbLKxSxDlFTg+DjRqBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:58:45.771603Z","bundle_sha256":"0a2050f7c81c3da2637eceb5f8204d295c345df763650e8fff8255373e4295f6"}}