{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:RUD4ELCFXP7KLD4Q2TGADCWVRL","short_pith_number":"pith:RUD4ELCF","canonical_record":{"source":{"id":"1608.01524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-04T13:13:55Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"ef7cfdae3a18424d15bf358cc83be153a030dfd0db7e3651f567c6702288c909","abstract_canon_sha256":"33af0891adade90894d6da7b8527734484a2366e24592a6b1b3900e806abb504"},"schema_version":"1.0"},"canonical_sha256":"8d07c22c45bbfea58f90d4cc018ad58affbcf9e703215a7c96408e4c6be7080e","source":{"kind":"arxiv","id":"1608.01524","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01524","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01524v1","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01524","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"pith_short_12","alias_value":"RUD4ELCFXP7K","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RUD4ELCFXP7KLD4Q","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RUD4ELCF","created_at":"2026-05-18T12:30:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:RUD4ELCFXP7KLD4Q2TGADCWVRL","target":"record","payload":{"canonical_record":{"source":{"id":"1608.01524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-04T13:13:55Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"ef7cfdae3a18424d15bf358cc83be153a030dfd0db7e3651f567c6702288c909","abstract_canon_sha256":"33af0891adade90894d6da7b8527734484a2366e24592a6b1b3900e806abb504"},"schema_version":"1.0"},"canonical_sha256":"8d07c22c45bbfea58f90d4cc018ad58affbcf9e703215a7c96408e4c6be7080e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:52.224541Z","signature_b64":"03xKnjodOBCuc3WGX6cOv8JelPPjV/2mBLn8pKn6EeLpyYX1qrmDwdrVhlsRgP4xEwrOppIf+EpFSNh378WdAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d07c22c45bbfea58f90d4cc018ad58affbcf9e703215a7c96408e4c6be7080e","last_reissued_at":"2026-05-18T01:09:52.223760Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:52.223760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.01524","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:09:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/d6d5anqY6ZRulQqyuxUjuhjenW0U6XWA17U+GFbAm+ShSqEEgot9XkB3r2iZ00orMoSrm4U0RpZalLJrLPaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:01:38.133799Z"},"content_sha256":"acc32d5d302d82361081aa31ae0995676ba0bb8d4c182b31889855b320a53cba","schema_version":"1.0","event_id":"sha256:acc32d5d302d82361081aa31ae0995676ba0bb8d4c182b31889855b320a53cba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:RUD4ELCFXP7KLD4Q2TGADCWVRL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cognitive Sub-Nyquist Hardware Prototype of a Collocated MIMO Radar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"David Cohen, Eli Shoshan, Kumar Vijay Mishra, Maxim Meltsin, Moshe Namer, Robert Ifraimov, Ron Madmoni, Shahar Dror, Yonina C. Eldar","submitted_at":"2016-08-04T13:13:55Z","abstract_excerpt":"We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar. The setup allows sampling in both spatial and spectral domains at rates much lower than dictated by the Nyquist sampling theorem. Our prototype realizes an X-band MIMO radar that can be configured to have a maximum of 8 transmit and 10 receive antenna elements. We use frequency division multiplexing (FDM) to achieve the orthogonality of MIMO waveforms and apply the Xampling framework for signal recovery. The prototype al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01524","kind":"arxiv","version":1},"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":"2026-05-18T01:09:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PdbtvhG4jBcGyR7pUz9az83XE3PUa2vhHbwsC/AJ3b9oxlRRaqzf/ZhHLKt9fbi17UNbxAu6lOFSan8KiGjfAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:01:38.134147Z"},"content_sha256":"09e26dac0459a1d609931112b7a4fdf3aadfca3c9804e85a5b09a6fa3f294934","schema_version":"1.0","event_id":"sha256:09e26dac0459a1d609931112b7a4fdf3aadfca3c9804e85a5b09a6fa3f294934"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/bundle.json","state_url":"https://pith.science/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/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":"2026-06-01T17:01:38Z","links":{"resolver":"https://pith.science/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL","bundle":"https://pith.science/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/bundle.json","state":"https://pith.science/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RUD4ELCFXP7KLD4Q2TGADCWVRL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:RUD4ELCFXP7KLD4Q2TGADCWVRL","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":"33af0891adade90894d6da7b8527734484a2366e24592a6b1b3900e806abb504","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-04T13:13:55Z","title_canon_sha256":"ef7cfdae3a18424d15bf358cc83be153a030dfd0db7e3651f567c6702288c909"},"schema_version":"1.0","source":{"id":"1608.01524","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01524","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01524v1","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01524","created_at":"2026-05-18T01:09:52Z"},{"alias_kind":"pith_short_12","alias_value":"RUD4ELCFXP7K","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_16","alias_value":"RUD4ELCFXP7KLD4Q","created_at":"2026-05-18T12:30:41Z"},{"alias_kind":"pith_short_8","alias_value":"RUD4ELCF","created_at":"2026-05-18T12:30:41Z"}],"graph_snapshots":[{"event_id":"sha256:09e26dac0459a1d609931112b7a4fdf3aadfca3c9804e85a5b09a6fa3f294934","target":"graph","created_at":"2026-05-18T01:09:52Z","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":"We present the design and hardware implementation of a radar prototype that demonstrates the principle of a sub-Nyquist collocated multiple-input multiple-output (MIMO) radar. The setup allows sampling in both spatial and spectral domains at rates much lower than dictated by the Nyquist sampling theorem. Our prototype realizes an X-band MIMO radar that can be configured to have a maximum of 8 transmit and 10 receive antenna elements. We use frequency division multiplexing (FDM) to achieve the orthogonality of MIMO waveforms and apply the Xampling framework for signal recovery. The prototype al","authors_text":"David Cohen, Eli Shoshan, Kumar Vijay Mishra, Maxim Meltsin, Moshe Namer, Robert Ifraimov, Ron Madmoni, Shahar Dror, Yonina C. Eldar","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-04T13:13:55Z","title":"Cognitive Sub-Nyquist Hardware Prototype of a Collocated MIMO Radar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01524","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:acc32d5d302d82361081aa31ae0995676ba0bb8d4c182b31889855b320a53cba","target":"record","created_at":"2026-05-18T01:09:52Z","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":"33af0891adade90894d6da7b8527734484a2366e24592a6b1b3900e806abb504","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2016-08-04T13:13:55Z","title_canon_sha256":"ef7cfdae3a18424d15bf358cc83be153a030dfd0db7e3651f567c6702288c909"},"schema_version":"1.0","source":{"id":"1608.01524","kind":"arxiv","version":1}},"canonical_sha256":"8d07c22c45bbfea58f90d4cc018ad58affbcf9e703215a7c96408e4c6be7080e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d07c22c45bbfea58f90d4cc018ad58affbcf9e703215a7c96408e4c6be7080e","first_computed_at":"2026-05-18T01:09:52.223760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:52.223760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"03xKnjodOBCuc3WGX6cOv8JelPPjV/2mBLn8pKn6EeLpyYX1qrmDwdrVhlsRgP4xEwrOppIf+EpFSNh378WdAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:52.224541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.01524","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:acc32d5d302d82361081aa31ae0995676ba0bb8d4c182b31889855b320a53cba","sha256:09e26dac0459a1d609931112b7a4fdf3aadfca3c9804e85a5b09a6fa3f294934"],"state_sha256":"4aaf2b3d539c7c16d0a987c0c34fd4e19553fcad6919317a8b6309e5449ea087"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"veE0AD5bn7GWhUKOOjxWYOEku2uRi0xvGzYNXGnvXLycfsq/j/2PYqIMeMH0iHhOUziPim3s3tC8U1mQOTX3Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:01:38.136229Z","bundle_sha256":"b99dbb033a8c06fd9b1ada36683c3c3351ef3aab10a6992d5747898d7e0e5ed8"}}