{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:DNP47QJOK7UZILJYGGFEVKMUWB","short_pith_number":"pith:DNP47QJO","canonical_record":{"source":{"id":"1407.5483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-07-21T13:15:43Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"40f975757c089cc8590589a5bbd30ba2a4d717ded47fcc0a9948de59c628c733","abstract_canon_sha256":"e1f48ab0a6600cf5aed26794d7cbe62eaf0eb7e01049501a748802827f4dad0c"},"schema_version":"1.0"},"canonical_sha256":"1b5fcfc12e57e9942d38318a4aa994b052545ac1d11cb4009b79a457af1f2a3f","source":{"kind":"arxiv","id":"1407.5483","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5483","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5483v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5483","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"DNP47QJOK7UZ","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DNP47QJOK7UZILJY","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DNP47QJO","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:DNP47QJOK7UZILJYGGFEVKMUWB","target":"record","payload":{"canonical_record":{"source":{"id":"1407.5483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-07-21T13:15:43Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"40f975757c089cc8590589a5bbd30ba2a4d717ded47fcc0a9948de59c628c733","abstract_canon_sha256":"e1f48ab0a6600cf5aed26794d7cbe62eaf0eb7e01049501a748802827f4dad0c"},"schema_version":"1.0"},"canonical_sha256":"1b5fcfc12e57e9942d38318a4aa994b052545ac1d11cb4009b79a457af1f2a3f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:13.932957Z","signature_b64":"f4RwvC2IylKoOBIt6643hQeOXFXwGma84io0upfkzqAG5RummTQRzJItLq0oiNvkHKKazG1nlQjhSbVTQ874BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b5fcfc12e57e9942d38318a4aa994b052545ac1d11cb4009b79a457af1f2a3f","last_reissued_at":"2026-05-18T02:47:13.932417Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:13.932417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.5483","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jShnDq4o1UTN20aYyln5qU5GcesEDNf5DkvSkveesiARjnUU/+5C//wkrMkIK6rLrKpZ8Wd1XNLL9UOV7U/VDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:55:27.484696Z"},"content_sha256":"f8e3b3a6dbc5037c9eb17c5562e233d92466e866540c5b3ec923a894d320a86e","schema_version":"1.0","event_id":"sha256:f8e3b3a6dbc5037c9eb17c5562e233d92466e866540c5b3ec923a894d320a86e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:DNP47QJOK7UZILJYGGFEVKMUWB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A RM-Polar Codes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Bin Li, David Tse, Hui Shen","submitted_at":"2014-07-21T13:15:43Z","abstract_excerpt":"In this letter we propose a new hybrid code called \"RM-Polar\" codes. This new codes are constructed by combining the construction of Reed-Muller (RM) code and Polar code. It has much larger minimum Hamming distance than Polar codes, therefore it has much better error performance than Polar codes."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5483","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":""},"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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l19UqtTXwsd17nz2nMOA1KkXtjCkux68trmppOxgTs5Ag0wBdn8lf2NPEootg1V2GiEzP7FYzG5MLRA2j2MICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:55:27.485081Z"},"content_sha256":"10a9dbfe7c999455e1aa5c4ad94690b5587da16fa932696dd0837ba08dbbdf16","schema_version":"1.0","event_id":"sha256:10a9dbfe7c999455e1aa5c4ad94690b5587da16fa932696dd0837ba08dbbdf16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DNP47QJOK7UZILJYGGFEVKMUWB/bundle.json","state_url":"https://pith.science/pith/DNP47QJOK7UZILJYGGFEVKMUWB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DNP47QJOK7UZILJYGGFEVKMUWB/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":"2026-05-28T01:55:27Z","links":{"resolver":"https://pith.science/pith/DNP47QJOK7UZILJYGGFEVKMUWB","bundle":"https://pith.science/pith/DNP47QJOK7UZILJYGGFEVKMUWB/bundle.json","state":"https://pith.science/pith/DNP47QJOK7UZILJYGGFEVKMUWB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DNP47QJOK7UZILJYGGFEVKMUWB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DNP47QJOK7UZILJYGGFEVKMUWB","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":"e1f48ab0a6600cf5aed26794d7cbe62eaf0eb7e01049501a748802827f4dad0c","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-07-21T13:15:43Z","title_canon_sha256":"40f975757c089cc8590589a5bbd30ba2a4d717ded47fcc0a9948de59c628c733"},"schema_version":"1.0","source":{"id":"1407.5483","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5483","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5483v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5483","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"DNP47QJOK7UZ","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DNP47QJOK7UZILJY","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DNP47QJO","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:10a9dbfe7c999455e1aa5c4ad94690b5587da16fa932696dd0837ba08dbbdf16","target":"graph","created_at":"2026-05-18T02:47:13Z","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":"In this letter we propose a new hybrid code called \"RM-Polar\" codes. This new codes are constructed by combining the construction of Reed-Muller (RM) code and Polar code. It has much larger minimum Hamming distance than Polar codes, therefore it has much better error performance than Polar codes.","authors_text":"Bin Li, David Tse, Hui Shen","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-07-21T13:15:43Z","title":"A RM-Polar Codes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5483","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:f8e3b3a6dbc5037c9eb17c5562e233d92466e866540c5b3ec923a894d320a86e","target":"record","created_at":"2026-05-18T02:47:13Z","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":"e1f48ab0a6600cf5aed26794d7cbe62eaf0eb7e01049501a748802827f4dad0c","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-07-21T13:15:43Z","title_canon_sha256":"40f975757c089cc8590589a5bbd30ba2a4d717ded47fcc0a9948de59c628c733"},"schema_version":"1.0","source":{"id":"1407.5483","kind":"arxiv","version":1}},"canonical_sha256":"1b5fcfc12e57e9942d38318a4aa994b052545ac1d11cb4009b79a457af1f2a3f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b5fcfc12e57e9942d38318a4aa994b052545ac1d11cb4009b79a457af1f2a3f","first_computed_at":"2026-05-18T02:47:13.932417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:13.932417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f4RwvC2IylKoOBIt6643hQeOXFXwGma84io0upfkzqAG5RummTQRzJItLq0oiNvkHKKazG1nlQjhSbVTQ874BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:13.932957Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.5483","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8e3b3a6dbc5037c9eb17c5562e233d92466e866540c5b3ec923a894d320a86e","sha256:10a9dbfe7c999455e1aa5c4ad94690b5587da16fa932696dd0837ba08dbbdf16"],"state_sha256":"68f0bad898cb0dbcba1b719607724a134f12ab1ea6871432e5f2713227458cbe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uIT2UJneA75US+XExmh+xEslpWANoxPZ46V/h2zLP6V9PMViEwwP4uIzA6h4iMvv2PWvC0chD5iYDG0kLfsOBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:55:27.487179Z","bundle_sha256":"1b87e56b479da71a1229fbdbcea2364a82c6f591366272d7fd3930a61cfacb85"}}