{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:VCPILRLRDE3747HB65L7PVBVEJ","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":"90020662f90343d40125a7df7d98a6dcce4c5f52830c0c3eb669e5484b450526","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-30T13:54:18Z","title_canon_sha256":"3f571a405aa4261c673b58f459752ad458b59bd90b978ea0c8f2eb7a7a9c4e66"},"schema_version":"1.0","source":{"id":"2512.00898","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.00898","created_at":"2026-06-03T01:05:07Z"},{"alias_kind":"arxiv_version","alias_value":"2512.00898v2","created_at":"2026-06-03T01:05:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.00898","created_at":"2026-06-03T01:05:07Z"},{"alias_kind":"pith_short_12","alias_value":"VCPILRLRDE37","created_at":"2026-06-03T01:05:07Z"},{"alias_kind":"pith_short_16","alias_value":"VCPILRLRDE3747HB","created_at":"2026-06-03T01:05:07Z"},{"alias_kind":"pith_short_8","alias_value":"VCPILRLR","created_at":"2026-06-03T01:05:07Z"}],"graph_snapshots":[{"event_id":"sha256:ba6afe02f8245066cbe70787997a6f0c7c86590d80e848febcc1b36ca9dc2347","target":"graph","created_at":"2026-06-03T01:05:07Z","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/2512.00898/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate direction-of-arrival estimation with hybrid analog--digital millimeter-wave sensor arrays is important for localization, environment sensing, and measurement beam control for sensing applications. However, the limited number of radio-frequency chains and training beams in practical hardware makes it difficult to approach the angular resolution of fully digital arrays. This paper develops a covariance-guided discrete Fourier transform (DFT) beam selection framework tailored to beamspace ESPRIT for hybrid millimeter-wave receivers. A short hybrid training phase realizes a virtual centro","authors_text":"R{\\i}fat Volkan \\c{S}enyuva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-30T13:54:18Z","title":"Covariance-Guided DFT Beam Selection for Beamspace ESPRIT in Hybrid mmWave Sensor Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.00898","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":"sha256:9a6aefcb12ab700a710cd359d6962dc1b92fa47620745485fb1955dc12a53220","target":"record","created_at":"2026-06-03T01:05:07Z","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":"90020662f90343d40125a7df7d98a6dcce4c5f52830c0c3eb669e5484b450526","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-11-30T13:54:18Z","title_canon_sha256":"3f571a405aa4261c673b58f459752ad458b59bd90b978ea0c8f2eb7a7a9c4e66"},"schema_version":"1.0","source":{"id":"2512.00898","kind":"arxiv","version":2}},"canonical_sha256":"a89e85c5711937fe7ce1f757f7d43522622c092df0c5f36ba326c9b9ee1fddb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a89e85c5711937fe7ce1f757f7d43522622c092df0c5f36ba326c9b9ee1fddb1","first_computed_at":"2026-06-03T01:05:07.835602Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:05:07.835602Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7OynbXdCZJlwAbpu+uMtv3tD7bzXFvau+brV2c+0KbnqTVWHZuSBcJ1kmG0DbRhrfC5CTT+lDxR/KUbYbxOkAQ==","signature_status":"signed_v1","signed_at":"2026-06-03T01:05:07.836138Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.00898","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a6aefcb12ab700a710cd359d6962dc1b92fa47620745485fb1955dc12a53220","sha256:ba6afe02f8245066cbe70787997a6f0c7c86590d80e848febcc1b36ca9dc2347"],"state_sha256":"1f2cb8a3c006cb6067768f138ff242d7e56e5fa5b0514c31cfdbec6a79d3886d"}