{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:Y26OBSU4GF35EK5UHNMT6K2MRU","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":"3ddd0ed0a00f69805150c18cc04bcdf1987ee64956d2863a191248553313ebdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.NI","submitted_at":"2013-09-19T16:49:16Z","title_canon_sha256":"e03d6e83cfee119b98c6816a3e0b60c4b9a2833716d66244bf71902d8435c8da"},"schema_version":"1.0","source":{"id":"1309.5049","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5049","created_at":"2026-05-18T02:33:25Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5049v3","created_at":"2026-05-18T02:33:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5049","created_at":"2026-05-18T02:33:25Z"},{"alias_kind":"pith_short_12","alias_value":"Y26OBSU4GF35","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y26OBSU4GF35EK5U","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y26OBSU4","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:e14905ccf8e2e319a4bbf1cd448c0fc3becd0d59925460b1ba0c3ae1fb1aa631","target":"graph","created_at":"2026-05-18T02:33:25Z","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":"Due to the dominance of the downlink traffic in Wireless Local Area Networks (WLANs), a large number of previous research efforts have been put to enhance the transmission from the Access Point (AP) to stations (STAs). The downlink Multi-User Multiple-Input Multiple-Output (MU-MIMO) technique, supported by the latest IEEE amendment-802.11ac, is considered as one of the key enhancements leading WLANs to the Gigabit era. However, as cloud uploading services, Peer-to-Peer (P2P) and telepresence applications get popular, the need for a higher uplink capacity becomes inevitable.\n  In this paper, a ","authors_text":"Boris Bellalta, Jaume Barcelo, Miquel Oliver, Ruizhi Liao, Trang Cao Minh","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.NI","submitted_at":"2013-09-19T16:49:16Z","title":"Uni-MUMAC: A Unified Down/Up-link MU-MIMO MAC Protocol for IEEE 802.11ac WLANs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5049","kind":"arxiv","version":3},"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":"sha256:0968f4e42852e5e0ccede0a0313967c6c3e38f0ad11f43b93ff402dbb1075c63","target":"record","created_at":"2026-05-18T02:33:25Z","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":"3ddd0ed0a00f69805150c18cc04bcdf1987ee64956d2863a191248553313ebdd","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.NI","submitted_at":"2013-09-19T16:49:16Z","title_canon_sha256":"e03d6e83cfee119b98c6816a3e0b60c4b9a2833716d66244bf71902d8435c8da"},"schema_version":"1.0","source":{"id":"1309.5049","kind":"arxiv","version":3}},"canonical_sha256":"c6bce0ca9c3177d22bb43b593f2b4c8d2209df271eaed247d538b8b39c7ef0a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c6bce0ca9c3177d22bb43b593f2b4c8d2209df271eaed247d538b8b39c7ef0a9","first_computed_at":"2026-05-18T02:33:25.587488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:25.587488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QOwjcHyMFTOHD1C7jshA6JU7weQBI8ZZ0AqEHGoWmgcdojJ9uGAmUTRJ2cahtj/DddnETsTqixK15bRUrIRUDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:25.588001Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.5049","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0968f4e42852e5e0ccede0a0313967c6c3e38f0ad11f43b93ff402dbb1075c63","sha256:e14905ccf8e2e319a4bbf1cd448c0fc3becd0d59925460b1ba0c3ae1fb1aa631"],"state_sha256":"938b6f37642bf3a7cd50e27cd960ec676a2b887ae62ad3e6f1c5190c1b95aa7d"}