{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:7GT4ZWTFH32CXUULWBJKSJ7H26","short_pith_number":"pith:7GT4ZWTF","canonical_record":{"source":{"id":"2008.10520","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-08-24T15:46:45Z","cross_cats_sorted":[],"title_canon_sha256":"03f33e705791a6e326d3645d629e1f249ba5b0fc855bca1aa676d5cb4f30070d","abstract_canon_sha256":"da18cccd75b0cb5c9d3e77acbd303989f3f12e983fed0b991e38d402db570ca8"},"schema_version":"1.0"},"canonical_sha256":"f9a7ccda653ef42bd28bb052a927e7d7acdcd7ee963990f9d46e58fdcfe8a487","source":{"kind":"arxiv","id":"2008.10520","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.10520","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"arxiv_version","alias_value":"2008.10520v2","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.10520","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_12","alias_value":"7GT4ZWTFH32C","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_16","alias_value":"7GT4ZWTFH32CXUUL","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_8","alias_value":"7GT4ZWTF","created_at":"2026-07-05T01:49:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:7GT4ZWTFH32CXUULWBJKSJ7H26","target":"record","payload":{"canonical_record":{"source":{"id":"2008.10520","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-08-24T15:46:45Z","cross_cats_sorted":[],"title_canon_sha256":"03f33e705791a6e326d3645d629e1f249ba5b0fc855bca1aa676d5cb4f30070d","abstract_canon_sha256":"da18cccd75b0cb5c9d3e77acbd303989f3f12e983fed0b991e38d402db570ca8"},"schema_version":"1.0"},"canonical_sha256":"f9a7ccda653ef42bd28bb052a927e7d7acdcd7ee963990f9d46e58fdcfe8a487","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:49:54.433662Z","signature_b64":"LCIbdTTvKGin5nr9uIQv03X0jmLGF5e18KZ+vF3zTPrxs8pgWSdZRoQxBGz9GFmit8iSifsILzi5tVDtgusZDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9a7ccda653ef42bd28bb052a927e7d7acdcd7ee963990f9d46e58fdcfe8a487","last_reissued_at":"2026-07-05T01:49:54.433268Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:49:54.433268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.10520","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:49:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JhZECgerHCoXyJmIJ4h3pRpSNwzc6Om78m1u3Dzb0L+Ja3v6oeKKTS37/pqS8pXbI+wv1xOY5J3cbTUh/aRLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:28:20.817482Z"},"content_sha256":"f6b01a599ec64f98903f58d5cf881eae80ac1a3ae59cf6a741bd0fd31ad957ed","schema_version":"1.0","event_id":"sha256:f6b01a599ec64f98903f58d5cf881eae80ac1a3ae59cf6a741bd0fd31ad957ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:7GT4ZWTFH32CXUULWBJKSJ7H26","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stochastic Hybrid Combining Design for Quantized Massive MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Lajos Hanzo, Xihan Chen, Yalin Wang, Yunlong Cai","submitted_at":"2020-08-24T15:46:45Z","abstract_excerpt":"Both the power-dissipation and cost of massive multiple-input multiple-output (mMIMO) systems may be substantially reduced by using low-resolution analog-to-digital converters (LADCs) at the receivers. However, both the coarse quantization of LADCs and the inaccurate instantaneous channel state information (ICSI) degrade the performance of quantized mMIMO systems. To overcome these challenges, we propose a novel stochastic hybrid analog-digital combiner (SHC) scheme for adapting the hybrid combiner to the long-term statistics of the channel state information (SCSI). We seek to minimize the tra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.10520","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2008.10520/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:49:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4kQpe6XPjdi37jxs2h0+ukC3RpExToQbBjZthgOrjho6UD3vjLHxmeVVkkn0zpcp0bCY3svGKaYablATt87vAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:28:20.818086Z"},"content_sha256":"47f9ce03f34d018c4192169240db805882f22e395992c31c6eba96e1df97df36","schema_version":"1.0","event_id":"sha256:47f9ce03f34d018c4192169240db805882f22e395992c31c6eba96e1df97df36"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/bundle.json","state_url":"https://pith.science/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/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":"2026-08-18T18:28:20Z","links":{"resolver":"https://pith.science/pith/7GT4ZWTFH32CXUULWBJKSJ7H26","bundle":"https://pith.science/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/bundle.json","state":"https://pith.science/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7GT4ZWTFH32CXUULWBJKSJ7H26/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:7GT4ZWTFH32CXUULWBJKSJ7H26","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":"da18cccd75b0cb5c9d3e77acbd303989f3f12e983fed0b991e38d402db570ca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-08-24T15:46:45Z","title_canon_sha256":"03f33e705791a6e326d3645d629e1f249ba5b0fc855bca1aa676d5cb4f30070d"},"schema_version":"1.0","source":{"id":"2008.10520","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.10520","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"arxiv_version","alias_value":"2008.10520v2","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.10520","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_12","alias_value":"7GT4ZWTFH32C","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_16","alias_value":"7GT4ZWTFH32CXUUL","created_at":"2026-07-05T01:49:54Z"},{"alias_kind":"pith_short_8","alias_value":"7GT4ZWTF","created_at":"2026-07-05T01:49:54Z"}],"graph_snapshots":[{"event_id":"sha256:47f9ce03f34d018c4192169240db805882f22e395992c31c6eba96e1df97df36","target":"graph","created_at":"2026-07-05T01:49:54Z","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/2008.10520/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Both the power-dissipation and cost of massive multiple-input multiple-output (mMIMO) systems may be substantially reduced by using low-resolution analog-to-digital converters (LADCs) at the receivers. However, both the coarse quantization of LADCs and the inaccurate instantaneous channel state information (ICSI) degrade the performance of quantized mMIMO systems. To overcome these challenges, we propose a novel stochastic hybrid analog-digital combiner (SHC) scheme for adapting the hybrid combiner to the long-term statistics of the channel state information (SCSI). We seek to minimize the tra","authors_text":"Lajos Hanzo, Xihan Chen, Yalin Wang, Yunlong Cai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-08-24T15:46:45Z","title":"Stochastic Hybrid Combining Design for Quantized Massive MIMO Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.10520","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:f6b01a599ec64f98903f58d5cf881eae80ac1a3ae59cf6a741bd0fd31ad957ed","target":"record","created_at":"2026-07-05T01:49:54Z","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":"da18cccd75b0cb5c9d3e77acbd303989f3f12e983fed0b991e38d402db570ca8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-08-24T15:46:45Z","title_canon_sha256":"03f33e705791a6e326d3645d629e1f249ba5b0fc855bca1aa676d5cb4f30070d"},"schema_version":"1.0","source":{"id":"2008.10520","kind":"arxiv","version":2}},"canonical_sha256":"f9a7ccda653ef42bd28bb052a927e7d7acdcd7ee963990f9d46e58fdcfe8a487","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9a7ccda653ef42bd28bb052a927e7d7acdcd7ee963990f9d46e58fdcfe8a487","first_computed_at":"2026-07-05T01:49:54.433268Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:49:54.433268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LCIbdTTvKGin5nr9uIQv03X0jmLGF5e18KZ+vF3zTPrxs8pgWSdZRoQxBGz9GFmit8iSifsILzi5tVDtgusZDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:49:54.433662Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.10520","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6b01a599ec64f98903f58d5cf881eae80ac1a3ae59cf6a741bd0fd31ad957ed","sha256:47f9ce03f34d018c4192169240db805882f22e395992c31c6eba96e1df97df36"],"state_sha256":"770b554503c4e8ac736a2a55c39b37f91e09a0d16671dfb37181c315a1b02803"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SHkFBoSvXkiAdRfUlDgXitP1afWqyom7v73tTiCBgVbFD2etKVSucFH5uvUxrxdujM3OjNrtZSUGPR5WeinjDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T18:28:20.821450Z","bundle_sha256":"19d911a0769b7867b1f79d4fdf9d8a30173075177ebe9f0a267eb06b4cb01ad7"}}