{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:H7D3YE4GNFESHKVK3G5KSNEY2R","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":"e2eb27586f394e92f46d7597f6a829dab53387fb6984cb19e7794a3c4a9a04d4","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.IT","submitted_at":"2025-08-28T12:27:01Z","title_canon_sha256":"b90a6b1f50ed4690721845c75016978d1ba624ebf78c91b3dd452db99345df08"},"schema_version":"1.0","source":{"id":"2508.20708","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.20708","created_at":"2026-07-05T12:00:58Z"},{"alias_kind":"arxiv_version","alias_value":"2508.20708v1","created_at":"2026-07-05T12:00:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.20708","created_at":"2026-07-05T12:00:58Z"},{"alias_kind":"pith_short_12","alias_value":"H7D3YE4GNFES","created_at":"2026-07-05T12:00:58Z"},{"alias_kind":"pith_short_16","alias_value":"H7D3YE4GNFESHKVK","created_at":"2026-07-05T12:00:58Z"},{"alias_kind":"pith_short_8","alias_value":"H7D3YE4G","created_at":"2026-07-05T12:00:58Z"}],"graph_snapshots":[{"event_id":"sha256:b05dbc7a02e21d59740a4a0949f0d2f4f13935b58e9f91db2ebe8467cc2130a3","target":"graph","created_at":"2026-07-05T12:00:58Z","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/2508.20708/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper seeks to determine the most efficient uplink technique for cell-free massive MIMO systems. Despite offering great advances, existing works suffer from fragmented methodologies and inconsistent assumptions (e.g., single- vs. multi-antenna access points, ideal vs. spatially correlated channels). To address these limitations, we: (1) establish a unified analytical framework compatible with centralized/distributed processing and diverse combining schemes; (2) develop a universal optimization strategy for max-min power control; and (3) conduct a holistic study among four critical metrics","authors_text":"Hans D. Schotten, Wei Jiang","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.IT","submitted_at":"2025-08-28T12:27:01Z","title":"What is the Most Efficient Technique for Uplink Cell-Free Massive MIMO?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.20708","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":"sha256:0b9277cfc5378f63a105e7a34947cc49aa6bafdd088dffc60cab517b2c7a8fb0","target":"record","created_at":"2026-07-05T12:00:58Z","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":"e2eb27586f394e92f46d7597f6a829dab53387fb6984cb19e7794a3c4a9a04d4","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.IT","submitted_at":"2025-08-28T12:27:01Z","title_canon_sha256":"b90a6b1f50ed4690721845c75016978d1ba624ebf78c91b3dd452db99345df08"},"schema_version":"1.0","source":{"id":"2508.20708","kind":"arxiv","version":1}},"canonical_sha256":"3fc7bc1386694923aaaad9baa93498d478bfd7399a2b560aec97731418c81bf9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fc7bc1386694923aaaad9baa93498d478bfd7399a2b560aec97731418c81bf9","first_computed_at":"2026-07-05T12:00:58.366987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:00:58.366987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6YuLtj8jvEiLYsPeJywu0VOVlFjs3AK+kci2E3dl2z4lcrWHRX7W9IvgxRTKL/wOTGArWHzukanEsqrR1Rt4AA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:00:58.367469Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.20708","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b9277cfc5378f63a105e7a34947cc49aa6bafdd088dffc60cab517b2c7a8fb0","sha256:b05dbc7a02e21d59740a4a0949f0d2f4f13935b58e9f91db2ebe8467cc2130a3"],"state_sha256":"baeb9945d1726e3463286e1a058d09c00a4a72047cf91c0c8995e78928062e46"}