{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BOS2IBXU7UBGJLNM3G5NOZAUMF","short_pith_number":"pith:BOS2IBXU","canonical_record":{"source":{"id":"1807.11163","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-30T04:13:12Z","cross_cats_sorted":[],"title_canon_sha256":"6aeb9c4a62748936b7aa5ac07b948333dd1b7b6dccc3b9a3c89cbdf51d43bd10","abstract_canon_sha256":"e797bfd3cc5afaa9f1c5518fa42639e844f5c63aa9a015ab6d5fc159535d277d"},"schema_version":"1.0"},"canonical_sha256":"0ba5a406f4fd0264adacd9bad764146149bb6b1ed4d489caf67dedac71b35e4f","source":{"kind":"arxiv","id":"1807.11163","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.11163","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"arxiv_version","alias_value":"1807.11163v3","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11163","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"pith_short_12","alias_value":"BOS2IBXU7UBG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BOS2IBXU7UBGJLNM","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BOS2IBXU","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BOS2IBXU7UBGJLNM3G5NOZAUMF","target":"record","payload":{"canonical_record":{"source":{"id":"1807.11163","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-30T04:13:12Z","cross_cats_sorted":[],"title_canon_sha256":"6aeb9c4a62748936b7aa5ac07b948333dd1b7b6dccc3b9a3c89cbdf51d43bd10","abstract_canon_sha256":"e797bfd3cc5afaa9f1c5518fa42639e844f5c63aa9a015ab6d5fc159535d277d"},"schema_version":"1.0"},"canonical_sha256":"0ba5a406f4fd0264adacd9bad764146149bb6b1ed4d489caf67dedac71b35e4f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:43.982460Z","signature_b64":"IFrA4y/cfY1bnzCcDhkl/HbwdPl2JLwk6THV1cNiZYf4IZ9DDQHop5069PAW/H2a+m0RTWKCskqm9/s+t56bAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ba5a406f4fd0264adacd9bad764146149bb6b1ed4d489caf67dedac71b35e4f","last_reissued_at":"2026-05-17T23:51:43.982056Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:43.982056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.11163","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:51:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IwklsYlEIQOxGzfWvulQsTpSdA7OXlySViQXxfJNmqEnMjRiQg9qvkZZHwe5v0b8LVqHF6lbOApqSsJ3eRcoAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:09:48.265858Z"},"content_sha256":"f3028b30aadab132ebece6d4a080ac544f1686600171e1372b90624eb83a7031","schema_version":"1.0","event_id":"sha256:f3028b30aadab132ebece6d4a080ac544f1686600171e1372b90624eb83a7031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BOS2IBXU7UBGJLNM3G5NOZAUMF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topologically Enhanced Harmonic Generation in a Nonlinear Transmission Line Metamaterial","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Baile Zhang, Ching Hua Lee, Li-Jun Lang, Y. D. Chong, You Wang","submitted_at":"2018-07-30T04:13:12Z","abstract_excerpt":"Nonlinear transmission lines (NLTLs) are nonlinear electronic circuits commonly used for parametric amplification and pulse generation. It has previously been shown that harmonic generation can be enhanced, and shock waves suppressed, in so-called \"left-handed\" NLTLs, a manifestation of the unique properties of left-handed media. Here, we demonstrate that harmonic generation in a left-handed NLTL can be greatly increased by the presence of a topological edge state. Our NLTL is a nonlinear analogue of the Su-Schrieffer-Heeger (SSH) lattice. Recent studies of nonlinear SSH circuits have investig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11163","kind":"arxiv","version":3},"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":"2026-05-17T23:51:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vpLkCxml8EfcpRSo2XrnB/xGre27k0t7O/RbQrS8W2okcLN98v2tZXK1K3YRu8Yr2zrQwrsu5RNxjJTncGjrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:09:48.266590Z"},"content_sha256":"8f52b1b83ca4efe78b9e1dc34359d97a9f1c18401b596f316f194f2bc38e0f21","schema_version":"1.0","event_id":"sha256:8f52b1b83ca4efe78b9e1dc34359d97a9f1c18401b596f316f194f2bc38e0f21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/bundle.json","state_url":"https://pith.science/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/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":"2026-05-27T08:09:48Z","links":{"resolver":"https://pith.science/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF","bundle":"https://pith.science/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/bundle.json","state":"https://pith.science/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BOS2IBXU7UBGJLNM3G5NOZAUMF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BOS2IBXU7UBGJLNM3G5NOZAUMF","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":"e797bfd3cc5afaa9f1c5518fa42639e844f5c63aa9a015ab6d5fc159535d277d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-30T04:13:12Z","title_canon_sha256":"6aeb9c4a62748936b7aa5ac07b948333dd1b7b6dccc3b9a3c89cbdf51d43bd10"},"schema_version":"1.0","source":{"id":"1807.11163","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.11163","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"arxiv_version","alias_value":"1807.11163v3","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11163","created_at":"2026-05-17T23:51:43Z"},{"alias_kind":"pith_short_12","alias_value":"BOS2IBXU7UBG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BOS2IBXU7UBGJLNM","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BOS2IBXU","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:8f52b1b83ca4efe78b9e1dc34359d97a9f1c18401b596f316f194f2bc38e0f21","target":"graph","created_at":"2026-05-17T23:51:43Z","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":"Nonlinear transmission lines (NLTLs) are nonlinear electronic circuits commonly used for parametric amplification and pulse generation. It has previously been shown that harmonic generation can be enhanced, and shock waves suppressed, in so-called \"left-handed\" NLTLs, a manifestation of the unique properties of left-handed media. Here, we demonstrate that harmonic generation in a left-handed NLTL can be greatly increased by the presence of a topological edge state. Our NLTL is a nonlinear analogue of the Su-Schrieffer-Heeger (SSH) lattice. Recent studies of nonlinear SSH circuits have investig","authors_text":"Baile Zhang, Ching Hua Lee, Li-Jun Lang, Y. D. Chong, You Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-30T04:13:12Z","title":"Topologically Enhanced Harmonic Generation in a Nonlinear Transmission Line Metamaterial"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11163","kind":"arxiv","version":3},"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:f3028b30aadab132ebece6d4a080ac544f1686600171e1372b90624eb83a7031","target":"record","created_at":"2026-05-17T23:51:43Z","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":"e797bfd3cc5afaa9f1c5518fa42639e844f5c63aa9a015ab6d5fc159535d277d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-30T04:13:12Z","title_canon_sha256":"6aeb9c4a62748936b7aa5ac07b948333dd1b7b6dccc3b9a3c89cbdf51d43bd10"},"schema_version":"1.0","source":{"id":"1807.11163","kind":"arxiv","version":3}},"canonical_sha256":"0ba5a406f4fd0264adacd9bad764146149bb6b1ed4d489caf67dedac71b35e4f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ba5a406f4fd0264adacd9bad764146149bb6b1ed4d489caf67dedac71b35e4f","first_computed_at":"2026-05-17T23:51:43.982056Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:43.982056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IFrA4y/cfY1bnzCcDhkl/HbwdPl2JLwk6THV1cNiZYf4IZ9DDQHop5069PAW/H2a+m0RTWKCskqm9/s+t56bAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:43.982460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.11163","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3028b30aadab132ebece6d4a080ac544f1686600171e1372b90624eb83a7031","sha256:8f52b1b83ca4efe78b9e1dc34359d97a9f1c18401b596f316f194f2bc38e0f21"],"state_sha256":"7b1d0ed9686c718b41d441ae11bee1273f1c0c7cc6878a74eea5987961f26d55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"du7/SpRzTj0xOnsVbS9W4NgRUDT0VbP/nIvlGpqgGQnWYKeUxDrm+zlzwmYaWSnMDYgsaPB86CCyAFMfI/IkDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:09:48.270273Z","bundle_sha256":"90f3d0df92c3c96fa08e5726f3949c0b4da569b139a224a74a2aba01459aecf9"}}