{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3HBKQT74GKSANCURAB66GNYCPP","short_pith_number":"pith:3HBKQT74","canonical_record":{"source":{"id":"1708.02963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2017-08-09T18:23:18Z","cross_cats_sorted":[],"title_canon_sha256":"ac451ec11d08ae83c59e28a989d48759635c2d5497e9a3615793bda2560eb115","abstract_canon_sha256":"40a040efe258225b335fd1c6040becfca3bd0175776cf672afa00f3e3752c511"},"schema_version":"1.0"},"canonical_sha256":"d9c2a84ffc32a4068a91007de337027bde1ee9f5f7a68c08a6d75754dcbd83aa","source":{"kind":"arxiv","id":"1708.02963","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02963","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02963v2","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02963","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"pith_short_12","alias_value":"3HBKQT74GKSA","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3HBKQT74GKSANCUR","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3HBKQT74","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3HBKQT74GKSANCURAB66GNYCPP","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2017-08-09T18:23:18Z","cross_cats_sorted":[],"title_canon_sha256":"ac451ec11d08ae83c59e28a989d48759635c2d5497e9a3615793bda2560eb115","abstract_canon_sha256":"40a040efe258225b335fd1c6040becfca3bd0175776cf672afa00f3e3752c511"},"schema_version":"1.0"},"canonical_sha256":"d9c2a84ffc32a4068a91007de337027bde1ee9f5f7a68c08a6d75754dcbd83aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:16.902622Z","signature_b64":"7tPt8WmBfj+81PzmCUVAR7sFAg1jg+QkgW/QJ/cqqcJpOUt7W/L8OToDVAkL1WXc9fJxuEIe5rEe0qiA8t3MDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9c2a84ffc32a4068a91007de337027bde1ee9f5f7a68c08a6d75754dcbd83aa","last_reissued_at":"2026-05-18T00:20:16.902137Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:16.902137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02963","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":"2026-05-18T00:20:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pE/VELiFgCbIXgU17NsB6b9SWXqrCjfFYjId1SKlWvB1HEgyiS8wy16Gg8Lc+3y2SkKoa6YNSko/0KLKqysfCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T07:28:24.014562Z"},"content_sha256":"6c76c5b403e1a9cb014a4972c0a2f5a61272eb54e6bd68b9f38b0c0a40904a03","schema_version":"1.0","event_id":"sha256:6c76c5b403e1a9cb014a4972c0a2f5a61272eb54e6bd68b9f38b0c0a40904a03"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3HBKQT74GKSANCURAB66GNYCPP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Last Meter Indoor Terahertz Wireless Access: Performance Insights and Implementation Roadmap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Dmitri Moltchanov, Janne Lehtomaki, Joonas Kokkoniemi, Markku Juntti, Vitaly Petrov, Yevgeni Koucheryavy","submitted_at":"2017-08-09T18:23:18Z","abstract_excerpt":"The terahertz (THz) band, 0.1-10 THz, has sufficient resources not only to satisfy the 5G requirements of 10 Gbit/s peak data rate but to enable a number of tempting rate-greedy applications. However, the THz band brings novel challenges, never addressed at lower frequencies. Among others, the scattering of THz waves from any object, including walls and furniture, and ultra-wideband highly-directional links lead to fundamentally new propagation and interference structures. In this article, we review the recent progress in THz propagation modeling, antenna and testbed designs, and propose a ste"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02963","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":"2026-05-18T00:20:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R8cFNnsqq0XRYN3/iFNKnk7qD01eEP4+2lHPwUWTYOdaT9zrgoVTqm+juPLuFmEiZTuH7KcLJUHRGZa1JvZSAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T07:28:24.014910Z"},"content_sha256":"5acb43a02cb06df88002e30dc26573faf39c95eb88cb56cc1b6a199b1fdbf57b","schema_version":"1.0","event_id":"sha256:5acb43a02cb06df88002e30dc26573faf39c95eb88cb56cc1b6a199b1fdbf57b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3HBKQT74GKSANCURAB66GNYCPP/bundle.json","state_url":"https://pith.science/pith/3HBKQT74GKSANCURAB66GNYCPP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3HBKQT74GKSANCURAB66GNYCPP/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":"2026-06-20T07:28:24Z","links":{"resolver":"https://pith.science/pith/3HBKQT74GKSANCURAB66GNYCPP","bundle":"https://pith.science/pith/3HBKQT74GKSANCURAB66GNYCPP/bundle.json","state":"https://pith.science/pith/3HBKQT74GKSANCURAB66GNYCPP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3HBKQT74GKSANCURAB66GNYCPP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3HBKQT74GKSANCURAB66GNYCPP","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":"40a040efe258225b335fd1c6040becfca3bd0175776cf672afa00f3e3752c511","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2017-08-09T18:23:18Z","title_canon_sha256":"ac451ec11d08ae83c59e28a989d48759635c2d5497e9a3615793bda2560eb115"},"schema_version":"1.0","source":{"id":"1708.02963","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02963","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02963v2","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02963","created_at":"2026-05-18T00:20:16Z"},{"alias_kind":"pith_short_12","alias_value":"3HBKQT74GKSA","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3HBKQT74GKSANCUR","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3HBKQT74","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:5acb43a02cb06df88002e30dc26573faf39c95eb88cb56cc1b6a199b1fdbf57b","target":"graph","created_at":"2026-05-18T00:20:16Z","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":"The terahertz (THz) band, 0.1-10 THz, has sufficient resources not only to satisfy the 5G requirements of 10 Gbit/s peak data rate but to enable a number of tempting rate-greedy applications. However, the THz band brings novel challenges, never addressed at lower frequencies. Among others, the scattering of THz waves from any object, including walls and furniture, and ultra-wideband highly-directional links lead to fundamentally new propagation and interference structures. In this article, we review the recent progress in THz propagation modeling, antenna and testbed designs, and propose a ste","authors_text":"Dmitri Moltchanov, Janne Lehtomaki, Joonas Kokkoniemi, Markku Juntti, Vitaly Petrov, Yevgeni Koucheryavy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2017-08-09T18:23:18Z","title":"Last Meter Indoor Terahertz Wireless Access: Performance Insights and Implementation Roadmap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02963","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":"sha256:6c76c5b403e1a9cb014a4972c0a2f5a61272eb54e6bd68b9f38b0c0a40904a03","target":"record","created_at":"2026-05-18T00:20:16Z","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":"40a040efe258225b335fd1c6040becfca3bd0175776cf672afa00f3e3752c511","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2017-08-09T18:23:18Z","title_canon_sha256":"ac451ec11d08ae83c59e28a989d48759635c2d5497e9a3615793bda2560eb115"},"schema_version":"1.0","source":{"id":"1708.02963","kind":"arxiv","version":2}},"canonical_sha256":"d9c2a84ffc32a4068a91007de337027bde1ee9f5f7a68c08a6d75754dcbd83aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9c2a84ffc32a4068a91007de337027bde1ee9f5f7a68c08a6d75754dcbd83aa","first_computed_at":"2026-05-18T00:20:16.902137Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:16.902137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7tPt8WmBfj+81PzmCUVAR7sFAg1jg+QkgW/QJ/cqqcJpOUt7W/L8OToDVAkL1WXc9fJxuEIe5rEe0qiA8t3MDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:16.902622Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02963","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c76c5b403e1a9cb014a4972c0a2f5a61272eb54e6bd68b9f38b0c0a40904a03","sha256:5acb43a02cb06df88002e30dc26573faf39c95eb88cb56cc1b6a199b1fdbf57b"],"state_sha256":"f346aed50a0a07a26407a2d4a12334e492006a2210c966573021b97766b2cde6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6C1xg/01oK2R+/MDWXSGV53DHd7fD99XAEXaFQIqPAm3S7CbKUKh9mNQANi/b0TtPbTq+wWHWuTjz7pMRc3ODw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T07:28:24.016894Z","bundle_sha256":"29b4b61d50930507cae6af0d734d71cce8e0c0bcacb6cf77469d33988974383c"}}