{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5W7CUAHT2KR4B27AEESYBZKZVW","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":"3a27bef927c3e8da27397ff21769eab0121b2b9454287d6d574db362aff57df6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-03-26T02:59:35Z","title_canon_sha256":"657d636fed1ff439d158db887b118cc592f43f040aeff86f9b659b7009d0bd62"},"schema_version":"1.0","source":{"id":"2603.24966","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.24966","created_at":"2026-06-09T01:04:42Z"},{"alias_kind":"arxiv_version","alias_value":"2603.24966v2","created_at":"2026-06-09T01:04:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.24966","created_at":"2026-06-09T01:04:42Z"},{"alias_kind":"pith_short_12","alias_value":"5W7CUAHT2KR4","created_at":"2026-06-09T01:04:42Z"},{"alias_kind":"pith_short_16","alias_value":"5W7CUAHT2KR4B27A","created_at":"2026-06-09T01:04:42Z"},{"alias_kind":"pith_short_8","alias_value":"5W7CUAHT","created_at":"2026-06-09T01:04:42Z"}],"graph_snapshots":[{"event_id":"sha256:5ae794987de4c3b345a740f4e68e7664cb85a94e9c4b36714c529bb42e3f6c10","target":"graph","created_at":"2026-06-09T01:04:42Z","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/2603.24966/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The growing demand for high-capacity, low-loss short-reach links in highly integrated electronic systems makes it necessary to understand how terahertz (THz) dielectric waveguides behave in realistic PCB-level packaging environments. In this article, we investigate the channel transmission of a 3D-printed polypropylene dielectric waveguide placed near representative PCB substrates. Continuous-wave THz measurements are carried out for bare, fully copper-clad, and periodic copper-trTerahertz (THz) dielectric waveguides are promising physical channels for short-reach interconnects, but their air-","authors_text":"Boquan Xu, Jiabiao Zhao, Jianjun Ma, Kefeng Huang, Peian Li, Weidong Hu, Wenbo Liu, Yang Cao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-03-26T02:59:35Z","title":"Near-Field Coupling of Polypropylene Dielectric Waveguide Routed Near PCB Board at Terahertz Frequencies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.24966","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":"sha256:60086159d93224369604be46a408e02a01044a138c4b909b3d4d3a0f46c89a80","target":"record","created_at":"2026-06-09T01:04:42Z","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":"3a27bef927c3e8da27397ff21769eab0121b2b9454287d6d574db362aff57df6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-03-26T02:59:35Z","title_canon_sha256":"657d636fed1ff439d158db887b118cc592f43f040aeff86f9b659b7009d0bd62"},"schema_version":"1.0","source":{"id":"2603.24966","kind":"arxiv","version":2}},"canonical_sha256":"edbe2a00f3d2a3c0ebe0212580e559adbf927db05e20056508504c1a51b8dfa9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"edbe2a00f3d2a3c0ebe0212580e559adbf927db05e20056508504c1a51b8dfa9","first_computed_at":"2026-06-09T01:04:42.213081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T01:04:42.213081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4azl5jFiSVcwaT+Y5jerx3SvPBl2V1+lgb+X2NmhQs6hlgykiMDXZab4dg67yXTJdMyBaYOdhHKJwDmeUUAABg==","signature_status":"signed_v1","signed_at":"2026-06-09T01:04:42.213634Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.24966","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60086159d93224369604be46a408e02a01044a138c4b909b3d4d3a0f46c89a80","sha256:5ae794987de4c3b345a740f4e68e7664cb85a94e9c4b36714c529bb42e3f6c10"],"state_sha256":"d797b2174a1500fefec0b2375ae49976c7fc9254a39af3ca2b29b6809f3ec00f"}