{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2CLXP4IFSKJQVPCX3QDMIU4FIL","short_pith_number":"pith:2CLXP4IF","canonical_record":{"source":{"id":"1210.5611","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-20T12:09:19Z","cross_cats_sorted":["physics.comp-ph","physics.optics"],"title_canon_sha256":"e529b1881fa1b9e731e6df0012f5a0f6caf2901c2d2364f44fc30a9ef770bd24","abstract_canon_sha256":"42c604e960481aea7a689795f3717476c012fa9f2ac5a4dd2f45beec73855f72"},"schema_version":"1.0"},"canonical_sha256":"d09777f10592930abc57dc06c4538542d9baf0f5264c5459c5832c5350ddc133","source":{"kind":"arxiv","id":"1210.5611","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5611","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5611v1","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5611","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"pith_short_12","alias_value":"2CLXP4IFSKJQ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2CLXP4IFSKJQVPCX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2CLXP4IF","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2CLXP4IFSKJQVPCX3QDMIU4FIL","target":"record","payload":{"canonical_record":{"source":{"id":"1210.5611","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-20T12:09:19Z","cross_cats_sorted":["physics.comp-ph","physics.optics"],"title_canon_sha256":"e529b1881fa1b9e731e6df0012f5a0f6caf2901c2d2364f44fc30a9ef770bd24","abstract_canon_sha256":"42c604e960481aea7a689795f3717476c012fa9f2ac5a4dd2f45beec73855f72"},"schema_version":"1.0"},"canonical_sha256":"d09777f10592930abc57dc06c4538542d9baf0f5264c5459c5832c5350ddc133","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:37:20.060103Z","signature_b64":"c5oBG1V0o901IZjB3YgY4JfIGurYXpkZjVKVhnN/pFzoFoC9KJVW336lZY0iq497gSthPofHvermWp/Z4//wBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d09777f10592930abc57dc06c4538542d9baf0f5264c5459c5832c5350ddc133","last_reissued_at":"2026-05-18T03:37:20.059678Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:37:20.059678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.5611","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":"2026-05-18T03:37:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TUkgPQ4pkDR7o7tnw0PAbRS7MA1bD85EUybxFV9UAIMSl3aFPjn/izSd1c4d99rVODOj2tamRWx0c15fYmEzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:48:46.755053Z"},"content_sha256":"06eea9c0f755ece86e80669c9910bd4df937df7c6be8c48c304c201004e92022","schema_version":"1.0","event_id":"sha256:06eea9c0f755ece86e80669c9910bd4df937df7c6be8c48c304c201004e92022"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2CLXP4IFSKJQVPCX3QDMIU4FIL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design of Tunable Biperiodic Graphene Metasurfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph","physics.optics"],"primary_cat":"cond-mat.mes-hall","authors_text":"Arya Fallahi, Julien Perruisseau-Carrier","submitted_at":"2012-10-20T12:09:19Z","abstract_excerpt":"Periodic structures with subwavelength features are instrumental in the versatile and effective control of electromagnetic waves from radio frequencies up to optics. In this paper, we theoretically evaluate the potential applications and performance of electromagnetic metasurfaces made of periodically patterned graphene. Several graphene metasurfaces are presented, thereby demonstrating that such ultrathin surfaces can be used to dynamically control the electromagnetic wave reflection, absorption, or polarization. Indeed, owing to the graphene properties, the structure performance in terms of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5611","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":"2026-05-18T03:37:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y7ivJWo6ZNFo4wFZom2fUO1UUND6w0TNgA1TVdJU4WV2rPbIvVPzd7k/28Ek2ZDYHYJojXDZ0DU+wPasWBy7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:48:46.755710Z"},"content_sha256":"60c888ca7a22769c2be1620b96aebb151ebf40d67df40c7f91a0b95996776759","schema_version":"1.0","event_id":"sha256:60c888ca7a22769c2be1620b96aebb151ebf40d67df40c7f91a0b95996776759"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/bundle.json","state_url":"https://pith.science/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/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":"2026-06-02T06:48:46Z","links":{"resolver":"https://pith.science/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL","bundle":"https://pith.science/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/bundle.json","state":"https://pith.science/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2CLXP4IFSKJQVPCX3QDMIU4FIL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2CLXP4IFSKJQVPCX3QDMIU4FIL","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":"42c604e960481aea7a689795f3717476c012fa9f2ac5a4dd2f45beec73855f72","cross_cats_sorted":["physics.comp-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-20T12:09:19Z","title_canon_sha256":"e529b1881fa1b9e731e6df0012f5a0f6caf2901c2d2364f44fc30a9ef770bd24"},"schema_version":"1.0","source":{"id":"1210.5611","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5611","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5611v1","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5611","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"pith_short_12","alias_value":"2CLXP4IFSKJQ","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2CLXP4IFSKJQVPCX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2CLXP4IF","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:60c888ca7a22769c2be1620b96aebb151ebf40d67df40c7f91a0b95996776759","target":"graph","created_at":"2026-05-18T03:37:20Z","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":"Periodic structures with subwavelength features are instrumental in the versatile and effective control of electromagnetic waves from radio frequencies up to optics. In this paper, we theoretically evaluate the potential applications and performance of electromagnetic metasurfaces made of periodically patterned graphene. Several graphene metasurfaces are presented, thereby demonstrating that such ultrathin surfaces can be used to dynamically control the electromagnetic wave reflection, absorption, or polarization. Indeed, owing to the graphene properties, the structure performance in terms of ","authors_text":"Arya Fallahi, Julien Perruisseau-Carrier","cross_cats":["physics.comp-ph","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-20T12:09:19Z","title":"Design of Tunable Biperiodic Graphene Metasurfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5611","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":"sha256:06eea9c0f755ece86e80669c9910bd4df937df7c6be8c48c304c201004e92022","target":"record","created_at":"2026-05-18T03:37:20Z","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":"42c604e960481aea7a689795f3717476c012fa9f2ac5a4dd2f45beec73855f72","cross_cats_sorted":["physics.comp-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-10-20T12:09:19Z","title_canon_sha256":"e529b1881fa1b9e731e6df0012f5a0f6caf2901c2d2364f44fc30a9ef770bd24"},"schema_version":"1.0","source":{"id":"1210.5611","kind":"arxiv","version":1}},"canonical_sha256":"d09777f10592930abc57dc06c4538542d9baf0f5264c5459c5832c5350ddc133","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d09777f10592930abc57dc06c4538542d9baf0f5264c5459c5832c5350ddc133","first_computed_at":"2026-05-18T03:37:20.059678Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:37:20.059678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c5oBG1V0o901IZjB3YgY4JfIGurYXpkZjVKVhnN/pFzoFoC9KJVW336lZY0iq497gSthPofHvermWp/Z4//wBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:37:20.060103Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.5611","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06eea9c0f755ece86e80669c9910bd4df937df7c6be8c48c304c201004e92022","sha256:60c888ca7a22769c2be1620b96aebb151ebf40d67df40c7f91a0b95996776759"],"state_sha256":"b3b925f9f543c0df2be4741e0597e749953a0ec60570ea1d09680159aefff755"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jk3zLY5U6PCAc3A9gJc/rv2WNJ+0fnkDU/bmgTy11G7jK5RVItyGfQPQLnVlY+H5YFXpAaW7fGWmeDYuBfPGBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T06:48:46.757983Z","bundle_sha256":"d6944a417e04a85e3a309905ece4c75f083764aa8e66db69b99d6c5b04590e7e"}}