{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OGAK5RUTUT4MM7P7QTYFREXBUA","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":"9b173e625c1b0c3ea8a65fa8f4ab4b7ef463ad7f5cb5f970edd966765aa84cfd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-03T13:27:56Z","title_canon_sha256":"94f6f5d377da8553a0fe78eb46159072868f54a6b309b709873f7ba8495af7ee"},"schema_version":"1.0","source":{"id":"1906.00789","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00789","created_at":"2026-05-17T23:44:23Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00789v1","created_at":"2026-05-17T23:44:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00789","created_at":"2026-05-17T23:44:23Z"},{"alias_kind":"pith_short_12","alias_value":"OGAK5RUTUT4M","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OGAK5RUTUT4MM7P7","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OGAK5RUT","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:5eec4c45ca53e198bccc1e06c42f23559fd52e4a4716db9d70a6589b934c3ac4","target":"graph","created_at":"2026-05-17T23:44:23Z","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":"In this paper, we firstly overview the application scenarios and the research progress in the area of communication and radar spectrum sharing (CRSS). We then propose a novel transceiver architecture and frame structure for a dual-functional radar-communication (DFRC) base station (BS) operating in the millimeter wave (mmWave) band, using the hybrid analog-digital (HAD) beamforming technique. We assume that the BS is serving a multi-antenna aided user equipment (UE) operating in a mmWave channel, which in the meantime actively detects multiple targets. Note that part of the targets also play t","authors_text":"Athina Petropulu, Christos Masouros, Fan Liu, Hugh Griffiths, Lajos Hanzo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-03T13:27:56Z","title":"Joint Radar and Communication Design: Applications, State-of-the-art, and the Road Ahead"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00789","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":"sha256:2f6dbcdc0995ad02e6c9c5b07b8b0b11dbdb7de45016c235b52fd3c29d1e533d","target":"record","created_at":"2026-05-17T23:44:23Z","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":"9b173e625c1b0c3ea8a65fa8f4ab4b7ef463ad7f5cb5f970edd966765aa84cfd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-06-03T13:27:56Z","title_canon_sha256":"94f6f5d377da8553a0fe78eb46159072868f54a6b309b709873f7ba8495af7ee"},"schema_version":"1.0","source":{"id":"1906.00789","kind":"arxiv","version":1}},"canonical_sha256":"7180aec693a4f8c67dff84f05892e1a0091e86f08187e57ebd722fac475e6dc0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7180aec693a4f8c67dff84f05892e1a0091e86f08187e57ebd722fac475e6dc0","first_computed_at":"2026-05-17T23:44:23.913109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:23.913109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y7asaJDV7irHM/icaDP0cn2f7OjDamkQx6JPeb2JQQ9/B/U52XCtF+3IkPHyVbebftlKirw3bmFe9fRPAlCqAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:23.913727Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.00789","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f6dbcdc0995ad02e6c9c5b07b8b0b11dbdb7de45016c235b52fd3c29d1e533d","sha256:5eec4c45ca53e198bccc1e06c42f23559fd52e4a4716db9d70a6589b934c3ac4"],"state_sha256":"cfb35aad1018b6ce6d82dce2fcac033bf4d70174371c0cc51042912f7f610fcb"}