{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2R75FJMMACDG7X7UPKRQT27JBA","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":"54aa2bf0b63a11dd0e26fa6ff5145dccf39f7639a385622136ac0e396b4322bc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.SP","submitted_at":"2025-03-03T10:25:03Z","title_canon_sha256":"920b62e2625abe1a3bfd6560108f928ea96a1454df68fe18a2df0cbf5fe94abb"},"schema_version":"1.0","source":{"id":"2503.01382","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.01382","created_at":"2026-07-05T10:23:06Z"},{"alias_kind":"arxiv_version","alias_value":"2503.01382v1","created_at":"2026-07-05T10:23:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.01382","created_at":"2026-07-05T10:23:06Z"},{"alias_kind":"pith_short_12","alias_value":"2R75FJMMACDG","created_at":"2026-07-05T10:23:06Z"},{"alias_kind":"pith_short_16","alias_value":"2R75FJMMACDG7X7U","created_at":"2026-07-05T10:23:06Z"},{"alias_kind":"pith_short_8","alias_value":"2R75FJMM","created_at":"2026-07-05T10:23:06Z"}],"graph_snapshots":[{"event_id":"sha256:60a37f1011583dbe4607338e8432d5885727b37f59e42e94671abd6226244350","target":"graph","created_at":"2026-07-05T10:23:06Z","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/2503.01382/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As 6G networks evolve, the upper mid-band spectrum (7 GHz to 24 GHz), or frequency range 3 (FR3), is emerging as a promising balance between the coverage offered by sub-6 GHz bands and the high-capacity of millimeter wave (mmWave) frequencies. This paper explores the structure of FR3 hybrid MIMO systems and proposes two architectural classes: Frequency Integrated (FI) and Frequency Partitioned (FP). FI architectures enhance spectral efficiency by exploiting multiple sub-bands parallelism, while FP architectures dynamically allocate sub-band access according to specific application requirements","authors_text":"Ahmed Alkhateeb, Marouan Mizmizi, Umberto Spagnolini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.SP","submitted_at":"2025-03-03T10:25:03Z","title":"Hybrid MIMO in the Upper Mid-Band: Architectures, Processing, and Energy Efficiency"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.01382","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:d83272b0f09a8c78a19fd053477c28b312350b60c200b9ff9bfd712de101f3b6","target":"record","created_at":"2026-07-05T10:23:06Z","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":"54aa2bf0b63a11dd0e26fa6ff5145dccf39f7639a385622136ac0e396b4322bc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"eess.SP","submitted_at":"2025-03-03T10:25:03Z","title_canon_sha256":"920b62e2625abe1a3bfd6560108f928ea96a1454df68fe18a2df0cbf5fe94abb"},"schema_version":"1.0","source":{"id":"2503.01382","kind":"arxiv","version":1}},"canonical_sha256":"d47fd2a58c00866fdff47aa309ebe90813d7be490729502bb3e309432f6dd4c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d47fd2a58c00866fdff47aa309ebe90813d7be490729502bb3e309432f6dd4c3","first_computed_at":"2026-07-05T10:23:06.270077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:23:06.270077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vcL6/SdnlgwA0/2MNnIfjTNF6JlCa+Rt0MWyu7+kqgAE2sC5lKuHbFtATcqO2BoZLWHO5tDtxC2HCZ4iHquyCA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:23:06.270863Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.01382","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d83272b0f09a8c78a19fd053477c28b312350b60c200b9ff9bfd712de101f3b6","sha256:60a37f1011583dbe4607338e8432d5885727b37f59e42e94671abd6226244350"],"state_sha256":"e7b14231d9c46e2c770a78e4922df294930c2aedc49e1fdc663886326b2b868a"}