{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DS2WXXI4U2HKY2P35GMPBWJ7DC","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":"3f8d370292bacbafd769605a0b1a44a7514d2d91752c10ed6b33574309b3e09a","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-08-21T02:59:35Z","title_canon_sha256":"cf796e0747d2130ac9f5cd311874bd68a6de154512c8f6586764b82d3f762a8b"},"schema_version":"1.0","source":{"id":"2508.15188","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.15188","created_at":"2026-07-05T11:57:07Z"},{"alias_kind":"arxiv_version","alias_value":"2508.15188v1","created_at":"2026-07-05T11:57:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.15188","created_at":"2026-07-05T11:57:07Z"},{"alias_kind":"pith_short_12","alias_value":"DS2WXXI4U2HK","created_at":"2026-07-05T11:57:07Z"},{"alias_kind":"pith_short_16","alias_value":"DS2WXXI4U2HKY2P3","created_at":"2026-07-05T11:57:07Z"},{"alias_kind":"pith_short_8","alias_value":"DS2WXXI4","created_at":"2026-07-05T11:57:07Z"}],"graph_snapshots":[{"event_id":"sha256:d71c5bdc99cc72113526b008afcbf3de3695109d2d604d280ed6d66db1d43a27","target":"graph","created_at":"2026-07-05T11:57:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2508.15188/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In nonlinear nanophotonics, cascaded second-harmonic generation (SHG) in pure plasmonic waveguides for sequential signal transformation and complex on-chip functionality remains a long-standing challenge. Precise phase matching becomes instrumental to achieve efficient SHG and enable true cascading of nonlinear processes. We experimentally demonstrate phase matching in SHG is achievable in a plasmonic system between two orthogonal modes. Accurate tuning of plasmonic two-wire transmission-line (TWTL) design parameters result in SHG from the antisymmetric excitation mode being approximately 15 t","authors_text":"Anand Hegde, Chen-Bin Huang, Jer-Shing Huang, Komal Gupta, Xiaofei Wu","cross_cats":["physics.app-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-08-21T02:59:35Z","title":"Phase Matched Plasmonic Transmission Lines for Cascaded Second-Harmonic Generation as a Pathway to Nonlinear Logic Circuits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.15188","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":"sha256:1883b1221bdc94a8cf735926731b92e974aadf8140d26a1ea2b73bb972e0e813","target":"record","created_at":"2026-07-05T11:57:07Z","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":"3f8d370292bacbafd769605a0b1a44a7514d2d91752c10ed6b33574309b3e09a","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-08-21T02:59:35Z","title_canon_sha256":"cf796e0747d2130ac9f5cd311874bd68a6de154512c8f6586764b82d3f762a8b"},"schema_version":"1.0","source":{"id":"2508.15188","kind":"arxiv","version":1}},"canonical_sha256":"1cb56bdd1ca68eac69fbe998f0d93f189a5569580d1169c223c9b6d44e9dcd5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1cb56bdd1ca68eac69fbe998f0d93f189a5569580d1169c223c9b6d44e9dcd5b","first_computed_at":"2026-07-05T11:57:07.974391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:57:07.974391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9cFIhXdNBy4n2zjb+MotLo6fXt5BPUNz7HlZuPZhSU0abWqp3OLzhYeIg/g4dfLttzD1sTkoOoCHQsc4vI3UDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:57:07.974802Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.15188","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1883b1221bdc94a8cf735926731b92e974aadf8140d26a1ea2b73bb972e0e813","sha256:d71c5bdc99cc72113526b008afcbf3de3695109d2d604d280ed6d66db1d43a27"],"state_sha256":"e18b009c9d4b263af60a0b2c925378a7b785e93a74380dd5fa7e464f06598a42"}