{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IG7LHUA7GHPCN6TMMPENRD6D43","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":"8da882517c20505da3f3b645ccdf7deab3024b88236ecf04623fb0b38299755f","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-04-12T09:26:24Z","title_canon_sha256":"eda710c500335b824e698bfe2b3c4117ea988369d4e65977ad08b4a066f8402d"},"schema_version":"1.0","source":{"id":"1804.04389","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04389","created_at":"2026-07-05T00:29:35Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04389v3","created_at":"2026-07-05T00:29:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04389","created_at":"2026-07-05T00:29:35Z"},{"alias_kind":"pith_short_12","alias_value":"IG7LHUA7GHPC","created_at":"2026-07-05T00:29:35Z"},{"alias_kind":"pith_short_16","alias_value":"IG7LHUA7GHPCN6TM","created_at":"2026-07-05T00:29:35Z"},{"alias_kind":"pith_short_8","alias_value":"IG7LHUA7","created_at":"2026-07-05T00:29:35Z"}],"graph_snapshots":[{"event_id":"sha256:a468935db171a650df28ed156da330feaa2e0105e151ee3ed15944412af90d21","target":"graph","created_at":"2026-07-05T00:29:35Z","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/1804.04389/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Polar codes have attracted the attention of academia and industry alike in the past decade, such that the 5$^\\text{th}$ generation wireless systems (5G) standardization process of the 3$^\\text{th}$ generation partnership project (3GPP) chose polar codes as a channel coding scheme. In this tutorial, we provide a description of the encoding process of polar codes adopted by the 5G standard. We illustrate the struggles of designing a family of polar codes able to satisfy the demands of 5G systems, with particular attention to rate flexibility and low decoding latency. The result of these efforts ","authors_text":"Carlo Condo, Ingmar Land, Valerio Bioglio","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-04-12T09:26:24Z","title":"Design of Polar Codes in 5G New Radio"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04389","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":"sha256:38f3826174c1b443883587dd10d5371d4babd4084fb70bfb41a586cf4e61f03c","target":"record","created_at":"2026-07-05T00:29:35Z","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":"8da882517c20505da3f3b645ccdf7deab3024b88236ecf04623fb0b38299755f","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2018-04-12T09:26:24Z","title_canon_sha256":"eda710c500335b824e698bfe2b3c4117ea988369d4e65977ad08b4a066f8402d"},"schema_version":"1.0","source":{"id":"1804.04389","kind":"arxiv","version":3}},"canonical_sha256":"41beb3d01f31de26fa6c63c8d88fc3e6d5ec9f785ec1f518d6b85bd7df9540d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41beb3d01f31de26fa6c63c8d88fc3e6d5ec9f785ec1f518d6b85bd7df9540d1","first_computed_at":"2026-07-05T00:29:35.490281Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:29:35.490281Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nEXebUBousnG2fT2KjWP7Cn3Aq3AbeSxl9T7GjhnF1IMvX1ucupvwDCMFdSLjEkVwBz14zqLOIyy/zPUNI59Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:29:35.490708Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04389","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38f3826174c1b443883587dd10d5371d4babd4084fb70bfb41a586cf4e61f03c","sha256:a468935db171a650df28ed156da330feaa2e0105e151ee3ed15944412af90d21"],"state_sha256":"e54dc0ea6a2212e8a3b4ef1f36d774ca7c90652c1140f67400d8871125c87292"}