{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:GXO5E5WH5HWYJ4WNT36W54Y25Y","short_pith_number":"pith:GXO5E5WH","canonical_record":{"source":{"id":"1306.0928","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2013-06-04T21:14:31Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"677c3bdd0fd816cf2741cfd8999f0a182c1920494f4965841a69abe9defab98b","abstract_canon_sha256":"56591e123cf0fb2916648169226e332ee4b497a4f5e8a9f54a21c2ff0aaa38f8"},"schema_version":"1.0"},"canonical_sha256":"35ddd276c7e9ed84f2cd9efd6ef31aee2e52ec07d8320a760566572014697770","source":{"kind":"arxiv","id":"1306.0928","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0928","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0928v1","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0928","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"pith_short_12","alias_value":"GXO5E5WH5HWY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"GXO5E5WH5HWYJ4WN","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"GXO5E5WH","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:GXO5E5WH5HWYJ4WNT36W54Y25Y","target":"record","payload":{"canonical_record":{"source":{"id":"1306.0928","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2013-06-04T21:14:31Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"677c3bdd0fd816cf2741cfd8999f0a182c1920494f4965841a69abe9defab98b","abstract_canon_sha256":"56591e123cf0fb2916648169226e332ee4b497a4f5e8a9f54a21c2ff0aaa38f8"},"schema_version":"1.0"},"canonical_sha256":"35ddd276c7e9ed84f2cd9efd6ef31aee2e52ec07d8320a760566572014697770","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:46.506412Z","signature_b64":"gwP2Q3Q6CG73cRqLOGn/Fj1A7ydY4XkgsdKKMYY19qf4bBcHTMxAqUH7DKeoEhjyYOa5FOus+m2LoD7iHhM6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"35ddd276c7e9ed84f2cd9efd6ef31aee2e52ec07d8320a760566572014697770","last_reissued_at":"2026-05-18T02:32:46.505930Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:46.505930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.0928","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":"2026-05-18T02:32:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O/6OEGHpGZkUO342zPk1tmLfJRgqTorhGFJ5n0XneeacZAIRTuNxArMI5fFFCwR+unXlzSx9a1BMg3fwgbtqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T17:30:20.636076Z"},"content_sha256":"fd51d1114728c888ec3269fd662e870bd823ca18d37c3a1e88125f0bc9685a9f","schema_version":"1.0","event_id":"sha256:fd51d1114728c888ec3269fd662e870bd823ca18d37c3a1e88125f0bc9685a9f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:GXO5E5WH5HWYJ4WNT36W54Y25Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metamaterial Loadings for Waveguide Miniaturization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.class-ph","authors_text":"F. L. Teixeira, H. Odabasi","submitted_at":"2013-06-04T21:14:31Z","abstract_excerpt":"We show that a rectangular metallic waveguide loaded with metamaterial elements consisting of electric-field coupled (ELC) resonators placed at the side walls can operate well below the cutoff frequency of the respective unloaded waveguide. The dispersion diagrams indicate that propagating modes in ELC-loaded waveguides are of forward-type for both TE and TM modes. We also study the dispersion diagram and transmission characteristics of rectangular metallic waveguides simultaneously loaded with ELCs and split ring resonators (SRRs). Such doubly-loaded waveguides can support both forward wave a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0928","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":"2026-05-18T02:32:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K7IDgWCZ4OVp6kOnIaDwJZSSZxxQ8FYXAnhJVCFPtYg+8o5Zbgrqmp2Yx9rhIN1a/pZXqHzEUnH3W2IM6hZVCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T17:30:20.636442Z"},"content_sha256":"a65c1285cc365eeddd8d75522ef8299f19f5ad1ca91cc204cdeb9b01c1605e2e","schema_version":"1.0","event_id":"sha256:a65c1285cc365eeddd8d75522ef8299f19f5ad1ca91cc204cdeb9b01c1605e2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/bundle.json","state_url":"https://pith.science/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/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":"2026-06-30T17:30:20Z","links":{"resolver":"https://pith.science/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y","bundle":"https://pith.science/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/bundle.json","state":"https://pith.science/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GXO5E5WH5HWYJ4WNT36W54Y25Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GXO5E5WH5HWYJ4WNT36W54Y25Y","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":"56591e123cf0fb2916648169226e332ee4b497a4f5e8a9f54a21c2ff0aaa38f8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2013-06-04T21:14:31Z","title_canon_sha256":"677c3bdd0fd816cf2741cfd8999f0a182c1920494f4965841a69abe9defab98b"},"schema_version":"1.0","source":{"id":"1306.0928","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0928","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0928v1","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0928","created_at":"2026-05-18T02:32:46Z"},{"alias_kind":"pith_short_12","alias_value":"GXO5E5WH5HWY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"GXO5E5WH5HWYJ4WN","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"GXO5E5WH","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:a65c1285cc365eeddd8d75522ef8299f19f5ad1ca91cc204cdeb9b01c1605e2e","target":"graph","created_at":"2026-05-18T02:32:46Z","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 show that a rectangular metallic waveguide loaded with metamaterial elements consisting of electric-field coupled (ELC) resonators placed at the side walls can operate well below the cutoff frequency of the respective unloaded waveguide. The dispersion diagrams indicate that propagating modes in ELC-loaded waveguides are of forward-type for both TE and TM modes. We also study the dispersion diagram and transmission characteristics of rectangular metallic waveguides simultaneously loaded with ELCs and split ring resonators (SRRs). Such doubly-loaded waveguides can support both forward wave a","authors_text":"F. L. Teixeira, H. Odabasi","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2013-06-04T21:14:31Z","title":"Metamaterial Loadings for Waveguide Miniaturization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0928","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:fd51d1114728c888ec3269fd662e870bd823ca18d37c3a1e88125f0bc9685a9f","target":"record","created_at":"2026-05-18T02:32:46Z","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":"56591e123cf0fb2916648169226e332ee4b497a4f5e8a9f54a21c2ff0aaa38f8","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2013-06-04T21:14:31Z","title_canon_sha256":"677c3bdd0fd816cf2741cfd8999f0a182c1920494f4965841a69abe9defab98b"},"schema_version":"1.0","source":{"id":"1306.0928","kind":"arxiv","version":1}},"canonical_sha256":"35ddd276c7e9ed84f2cd9efd6ef31aee2e52ec07d8320a760566572014697770","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"35ddd276c7e9ed84f2cd9efd6ef31aee2e52ec07d8320a760566572014697770","first_computed_at":"2026-05-18T02:32:46.505930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:46.505930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gwP2Q3Q6CG73cRqLOGn/Fj1A7ydY4XkgsdKKMYY19qf4bBcHTMxAqUH7DKeoEhjyYOa5FOus+m2LoD7iHhM6Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:46.506412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0928","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fd51d1114728c888ec3269fd662e870bd823ca18d37c3a1e88125f0bc9685a9f","sha256:a65c1285cc365eeddd8d75522ef8299f19f5ad1ca91cc204cdeb9b01c1605e2e"],"state_sha256":"fb354760a6acf98b21315857c2022eae54c5425b59792f0e8fcda784940b6e3e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PN1k1+b5/lbOphcZpijaKR/98byb2dK9moceyWzLw2KCpecuBe8gWLRtGXwbXDoqHW4xYuZ+EOYtrIsSRwoIBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T17:30:20.638428Z","bundle_sha256":"779d79c03bce32aef45c22b3abe229fbd05550d406b9264c6274041dfe5559fa"}}