{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:544UIHQX5URKLNLL4VDR7J4RMO","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":"69bd07a142d24ee6c20a456f14902c84b8b863e2907647aad9f9b16b782364a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-08-29T01:51:35Z","title_canon_sha256":"e6146b5881a11f6957d9aca8ba2c55c4ab5c06834fd3468b96b8fdd3b96a727b"},"schema_version":"1.0","source":{"id":"1908.11016","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.11016","created_at":"2026-07-05T00:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.11016v2","created_at":"2026-07-05T00:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.11016","created_at":"2026-07-05T00:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"544UIHQX5URK","created_at":"2026-07-05T00:41:36Z"},{"alias_kind":"pith_short_16","alias_value":"544UIHQX5URKLNLL","created_at":"2026-07-05T00:41:36Z"},{"alias_kind":"pith_short_8","alias_value":"544UIHQX","created_at":"2026-07-05T00:41:36Z"}],"graph_snapshots":[{"event_id":"sha256:e2f1b73d1e6123f555b1577819802d1395646864a09b59b8bda3270b8ff14078","target":"graph","created_at":"2026-07-05T00:41:36Z","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/1908.11016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider a hybrid active-passive radar system that employs a wireless source as a passive illuminator of opportunity (IO) and a co-channel active radar transmitter operating in the same frequency band to seek spectral efficiency. The hybrid system can take advantage of the strengths of passive radar (e.g., energy efficiency, bi-/multi-static configuration, and spatial diversity) as well as those of active radar (dedicated transmitter, flexible transmit beam steering, waveform optimized for sensing, etc.). To mitigate the mutual interference and location-induced timing uncertainty between th","authors_text":"Fangzhou Wang, Hongbin Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-08-29T01:51:35Z","title":"Joint Waveform and Receiver Design for Co-Channel Hybrid Active-Passive Sensing with Timing Uncertainty"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.11016","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":"sha256:4a2f012fda6a0edbea22197a41a0782623fdbc021d8aca1d614a6fbb92d57762","target":"record","created_at":"2026-07-05T00:41:36Z","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":"69bd07a142d24ee6c20a456f14902c84b8b863e2907647aad9f9b16b782364a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-08-29T01:51:35Z","title_canon_sha256":"e6146b5881a11f6957d9aca8ba2c55c4ab5c06834fd3468b96b8fdd3b96a727b"},"schema_version":"1.0","source":{"id":"1908.11016","kind":"arxiv","version":2}},"canonical_sha256":"ef39441e17ed22a5b56be5471fa791638ade3abe607490ccaef08718797cde8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef39441e17ed22a5b56be5471fa791638ade3abe607490ccaef08718797cde8a","first_computed_at":"2026-07-05T00:41:36.320886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:41:36.320886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9n9IiOi+TpYV80VJTbIqOpdspr+wUG7dGRCgZaX+Ks3oMRCfeKQfv1HZeFBA1H7KQon1dggMIftyOws5KMsTDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:41:36.321354Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.11016","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a2f012fda6a0edbea22197a41a0782623fdbc021d8aca1d614a6fbb92d57762","sha256:e2f1b73d1e6123f555b1577819802d1395646864a09b59b8bda3270b8ff14078"],"state_sha256":"84017c4c424a40d5ba44bb23c2ca66106f0e1c7aada70ecb9bc45727bd9127c0"}