{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:Q6ZRIRCGGKF7AJOESEH6HUXEQC","short_pith_number":"pith:Q6ZRIRCG","canonical_record":{"source":{"id":"2405.20068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-05-30T13:57:14Z","cross_cats_sorted":[],"title_canon_sha256":"e4b6f2e31543d56f15cf83558eec1d9a46f047f5659de6cc5886721f5648d4d6","abstract_canon_sha256":"8cd9e874815e67eda03db6779da3cba202b321b58c7a34ae196266ae233455cd"},"schema_version":"1.0"},"canonical_sha256":"87b3144446328bf025c4910fe3d2e480b7ae5ad20fafba29b03578585b36f155","source":{"kind":"arxiv","id":"2405.20068","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.20068","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"2405.20068v1","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.20068","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"Q6ZRIRCGGKF7","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_16","alias_value":"Q6ZRIRCGGKF7AJOE","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_8","alias_value":"Q6ZRIRCG","created_at":"2026-07-05T08:25:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:Q6ZRIRCGGKF7AJOESEH6HUXEQC","target":"record","payload":{"canonical_record":{"source":{"id":"2405.20068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-05-30T13:57:14Z","cross_cats_sorted":[],"title_canon_sha256":"e4b6f2e31543d56f15cf83558eec1d9a46f047f5659de6cc5886721f5648d4d6","abstract_canon_sha256":"8cd9e874815e67eda03db6779da3cba202b321b58c7a34ae196266ae233455cd"},"schema_version":"1.0"},"canonical_sha256":"87b3144446328bf025c4910fe3d2e480b7ae5ad20fafba29b03578585b36f155","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:25:15.802730Z","signature_b64":"v1sc5rg5EobG0Q/0Wz2Ob0PMVmVdwgBTdWx/1AsmesApytUhVsqO0YDuYAb7rlxGhi3y9gDtMzo86eLGpiBGCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87b3144446328bf025c4910fe3d2e480b7ae5ad20fafba29b03578585b36f155","last_reissued_at":"2026-07-05T08:25:15.802289Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:25:15.802289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.20068","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7pqq9vh2diJRY1h7qlnZ/EHQaSysVpbTjJQkX6E/zZ9iWQn7YTC9/UOpJiA6DAZFKeyn6v7Kp3jy6Qw/bhtiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:39:48.766368Z"},"content_sha256":"7112eabbda8ec65bc4bdfefd603fe387f5c145c0c87a560ea53e6281a9a1e247","schema_version":"1.0","event_id":"sha256:7112eabbda8ec65bc4bdfefd603fe387f5c145c0c87a560ea53e6281a9a1e247"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:Q6ZRIRCGGKF7AJOESEH6HUXEQC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Efficient Network with Novel Quantization Designed for Massive MIMO CSI Feedback","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Luxi Yang, Xinran Sun, Zhengming Zhang","submitted_at":"2024-05-30T13:57:14Z","abstract_excerpt":"The efficacy of massive multiple-input multiple-output (MIMO) techniques heavily relies on the accuracy of channel state information (CSI) in frequency division duplexing (FDD) systems. Many works focus on CSI compression and quantization methods to enhance CSI reconstruction accuracy with lower feedback overhead. In this letter, we propose CsiConformer, a novel CSI feedback network that combines convolutional operations and self-attention mechanisms to improve CSI feedback accuracy. Additionally, a new quantization module is developed to improve encoding efficiency. Experiment results show th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.20068","kind":"arxiv","version":1},"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/2405.20068/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":"2026-07-05T08:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w0SEWzFD7TKQTyqYQQxdMa/nKj/02eFIRlXoFjz5DYg7WKKrRp9Dj4qVgzwGB0s4rkdR5Im0yBF8l4L8rmj2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:39:48.766876Z"},"content_sha256":"ca8ed7aa5dc3fdb5c1d26bc4f7ab979b654915834bbaa9c6409b5d42ec03dfea","schema_version":"1.0","event_id":"sha256:ca8ed7aa5dc3fdb5c1d26bc4f7ab979b654915834bbaa9c6409b5d42ec03dfea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/bundle.json","state_url":"https://pith.science/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/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":"2026-08-09T08:39:48Z","links":{"resolver":"https://pith.science/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC","bundle":"https://pith.science/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/bundle.json","state":"https://pith.science/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q6ZRIRCGGKF7AJOESEH6HUXEQC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q6ZRIRCGGKF7AJOESEH6HUXEQC","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":"8cd9e874815e67eda03db6779da3cba202b321b58c7a34ae196266ae233455cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-05-30T13:57:14Z","title_canon_sha256":"e4b6f2e31543d56f15cf83558eec1d9a46f047f5659de6cc5886721f5648d4d6"},"schema_version":"1.0","source":{"id":"2405.20068","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.20068","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"2405.20068v1","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.20068","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"Q6ZRIRCGGKF7","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_16","alias_value":"Q6ZRIRCGGKF7AJOE","created_at":"2026-07-05T08:25:15Z"},{"alias_kind":"pith_short_8","alias_value":"Q6ZRIRCG","created_at":"2026-07-05T08:25:15Z"}],"graph_snapshots":[{"event_id":"sha256:ca8ed7aa5dc3fdb5c1d26bc4f7ab979b654915834bbaa9c6409b5d42ec03dfea","target":"graph","created_at":"2026-07-05T08:25:15Z","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/2405.20068/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The efficacy of massive multiple-input multiple-output (MIMO) techniques heavily relies on the accuracy of channel state information (CSI) in frequency division duplexing (FDD) systems. Many works focus on CSI compression and quantization methods to enhance CSI reconstruction accuracy with lower feedback overhead. In this letter, we propose CsiConformer, a novel CSI feedback network that combines convolutional operations and self-attention mechanisms to improve CSI feedback accuracy. Additionally, a new quantization module is developed to improve encoding efficiency. Experiment results show th","authors_text":"Luxi Yang, Xinran Sun, Zhengming Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-05-30T13:57:14Z","title":"An Efficient Network with Novel Quantization Designed for Massive MIMO CSI Feedback"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.20068","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":"sha256:7112eabbda8ec65bc4bdfefd603fe387f5c145c0c87a560ea53e6281a9a1e247","target":"record","created_at":"2026-07-05T08:25:15Z","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":"8cd9e874815e67eda03db6779da3cba202b321b58c7a34ae196266ae233455cd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2024-05-30T13:57:14Z","title_canon_sha256":"e4b6f2e31543d56f15cf83558eec1d9a46f047f5659de6cc5886721f5648d4d6"},"schema_version":"1.0","source":{"id":"2405.20068","kind":"arxiv","version":1}},"canonical_sha256":"87b3144446328bf025c4910fe3d2e480b7ae5ad20fafba29b03578585b36f155","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87b3144446328bf025c4910fe3d2e480b7ae5ad20fafba29b03578585b36f155","first_computed_at":"2026-07-05T08:25:15.802289Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:25:15.802289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v1sc5rg5EobG0Q/0Wz2Ob0PMVmVdwgBTdWx/1AsmesApytUhVsqO0YDuYAb7rlxGhi3y9gDtMzo86eLGpiBGCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:25:15.802730Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.20068","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7112eabbda8ec65bc4bdfefd603fe387f5c145c0c87a560ea53e6281a9a1e247","sha256:ca8ed7aa5dc3fdb5c1d26bc4f7ab979b654915834bbaa9c6409b5d42ec03dfea"],"state_sha256":"c1aaa420a99ce783ec25b9e98f55b0aa60ac203aa6759be3f1ec3834c8227f21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TiLYF6bmpSxrkeRepzHknAS/UyciIX0FqcTvuQw1ubeyPyNs3adCDjOO6Pnk553EG1w1FgAzLno1mmS2D/03Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T08:39:48.772379Z","bundle_sha256":"1297f26d99a8a5619b6d3966db715465db6e6c8334c198da40e8938ed7e66dee"}}