{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4QBU4A2RFZH6J75EWPNGZ557SS","short_pith_number":"pith:4QBU4A2R","canonical_record":{"source":{"id":"1304.6320","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-23T15:24:10Z","cross_cats_sorted":[],"title_canon_sha256":"80e429be506826fcf4f40329fc221509163ecb3ab331893721d22b539670641e","abstract_canon_sha256":"994c0ee92a61bb084da3b69e67aced2061bf049f1c994022f3ff0652618cf908"},"schema_version":"1.0"},"canonical_sha256":"e4034e03512e4fe4ffa4b3da6cf7bf948fce96c1f51465fda6cea03a9afda9d0","source":{"kind":"arxiv","id":"1304.6320","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6320","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6320v2","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6320","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"pith_short_12","alias_value":"4QBU4A2RFZH6","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4QBU4A2RFZH6J75E","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4QBU4A2R","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4QBU4A2RFZH6J75EWPNGZ557SS","target":"record","payload":{"canonical_record":{"source":{"id":"1304.6320","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-23T15:24:10Z","cross_cats_sorted":[],"title_canon_sha256":"80e429be506826fcf4f40329fc221509163ecb3ab331893721d22b539670641e","abstract_canon_sha256":"994c0ee92a61bb084da3b69e67aced2061bf049f1c994022f3ff0652618cf908"},"schema_version":"1.0"},"canonical_sha256":"e4034e03512e4fe4ffa4b3da6cf7bf948fce96c1f51465fda6cea03a9afda9d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:24.192018Z","signature_b64":"K3VWTXRE2G7zwi1C17A69H7WpFarYhLRys8fpp7jsIloHXahDvKJnJqBKTH0KE/wYu5A+J+IlV/KXWNbUDE4DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4034e03512e4fe4ffa4b3da6cf7bf948fce96c1f51465fda6cea03a9afda9d0","last_reissued_at":"2026-05-18T02:39:24.191675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:24.191675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.6320","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:39:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uzOALa1qisyU0sG3YL1XILwhC56TRzx8Wc5Qdp+hntlh/qfrW6PgDxM51Mhl0NYuGYwIurryRzsbSB3lW0JUAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T16:53:43.285827Z"},"content_sha256":"03dc5283153552e3d38eeb7e31c73ff70e426af10cab3b57d5e329ba9b8aa7da","schema_version":"1.0","event_id":"sha256:03dc5283153552e3d38eeb7e31c73ff70e426af10cab3b57d5e329ba9b8aa7da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4QBU4A2RFZH6J75EWPNGZ557SS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene Based Plasmonic Tunable Low Pass Filters in the THz Band","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Alvarez Melcon, D. Correas Serrano, J. Perruisseau-Carrier, J. S. Gomez Diaz","submitted_at":"2013-04-23T15:24:10Z","abstract_excerpt":"We propose the concept, synthesis, analysis, and design of graphene-based plasmonic tunable low-pass filters operating in the THz band. The proposed structure is composed of a graphene strip transferred onto a dielectric and a set of polysilicon DC gating pads located beneath it. This structure implements a stepped impedance low-pass filter for the propagating surface plasmons by adequately controlling the guiding properties of each strip section through graphene's field effect. A synthesis procedure is presented to design filters with desired specifications in terms of cut-off frequency, in-b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6320","kind":"arxiv","version":2},"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":"2026-05-18T02:39:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"imlYWT18AzNA7k1w77OQBwPaqntfMunzpARfB0c9g0aaTIeoJosaVzxPyqoMIt+urtxcx1sCO/st18Naj1yoBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T16:53:43.286168Z"},"content_sha256":"10ecfa15e0338d5a8447f2bb26030c2c526b327fb782c7abb09bdb6a341cf2a2","schema_version":"1.0","event_id":"sha256:10ecfa15e0338d5a8447f2bb26030c2c526b327fb782c7abb09bdb6a341cf2a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QBU4A2RFZH6J75EWPNGZ557SS/bundle.json","state_url":"https://pith.science/pith/4QBU4A2RFZH6J75EWPNGZ557SS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QBU4A2RFZH6J75EWPNGZ557SS/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":"2026-06-04T16:53:43Z","links":{"resolver":"https://pith.science/pith/4QBU4A2RFZH6J75EWPNGZ557SS","bundle":"https://pith.science/pith/4QBU4A2RFZH6J75EWPNGZ557SS/bundle.json","state":"https://pith.science/pith/4QBU4A2RFZH6J75EWPNGZ557SS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QBU4A2RFZH6J75EWPNGZ557SS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4QBU4A2RFZH6J75EWPNGZ557SS","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":"994c0ee92a61bb084da3b69e67aced2061bf049f1c994022f3ff0652618cf908","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-23T15:24:10Z","title_canon_sha256":"80e429be506826fcf4f40329fc221509163ecb3ab331893721d22b539670641e"},"schema_version":"1.0","source":{"id":"1304.6320","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.6320","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"arxiv_version","alias_value":"1304.6320v2","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6320","created_at":"2026-05-18T02:39:24Z"},{"alias_kind":"pith_short_12","alias_value":"4QBU4A2RFZH6","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4QBU4A2RFZH6J75E","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4QBU4A2R","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:10ecfa15e0338d5a8447f2bb26030c2c526b327fb782c7abb09bdb6a341cf2a2","target":"graph","created_at":"2026-05-18T02:39:24Z","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 propose the concept, synthesis, analysis, and design of graphene-based plasmonic tunable low-pass filters operating in the THz band. The proposed structure is composed of a graphene strip transferred onto a dielectric and a set of polysilicon DC gating pads located beneath it. This structure implements a stepped impedance low-pass filter for the propagating surface plasmons by adequately controlling the guiding properties of each strip section through graphene's field effect. A synthesis procedure is presented to design filters with desired specifications in terms of cut-off frequency, in-b","authors_text":"A. Alvarez Melcon, D. Correas Serrano, J. Perruisseau-Carrier, J. S. Gomez Diaz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-23T15:24:10Z","title":"Graphene Based Plasmonic Tunable Low Pass Filters in the THz Band"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6320","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":"sha256:03dc5283153552e3d38eeb7e31c73ff70e426af10cab3b57d5e329ba9b8aa7da","target":"record","created_at":"2026-05-18T02:39:24Z","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":"994c0ee92a61bb084da3b69e67aced2061bf049f1c994022f3ff0652618cf908","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-04-23T15:24:10Z","title_canon_sha256":"80e429be506826fcf4f40329fc221509163ecb3ab331893721d22b539670641e"},"schema_version":"1.0","source":{"id":"1304.6320","kind":"arxiv","version":2}},"canonical_sha256":"e4034e03512e4fe4ffa4b3da6cf7bf948fce96c1f51465fda6cea03a9afda9d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4034e03512e4fe4ffa4b3da6cf7bf948fce96c1f51465fda6cea03a9afda9d0","first_computed_at":"2026-05-18T02:39:24.191675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:24.191675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K3VWTXRE2G7zwi1C17A69H7WpFarYhLRys8fpp7jsIloHXahDvKJnJqBKTH0KE/wYu5A+J+IlV/KXWNbUDE4DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:24.192018Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.6320","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03dc5283153552e3d38eeb7e31c73ff70e426af10cab3b57d5e329ba9b8aa7da","sha256:10ecfa15e0338d5a8447f2bb26030c2c526b327fb782c7abb09bdb6a341cf2a2"],"state_sha256":"3b60273dcb0ab74d76ffdcf0858498197587dec685d0c374905c2dad36812547"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K1ZBbb/D0eWOgh4O1vuan3WCg5TDuqqwRv7Wzmq4gnjkFm9+9uUcWadEFc0D/oI3Y+Qy3DcImsyQPxTFhoJHBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T16:53:43.288760Z","bundle_sha256":"ded1e412c6dcc8d090ce5e01c4e38713e2f4fb59818246c9d907f30741670d1d"}}