{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:SUZKEEZT4LF5DBPCV7DI7KSPHY","short_pith_number":"pith:SUZKEEZT","canonical_record":{"source":{"id":"1008.4413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2010-08-26T01:02:40Z","cross_cats_sorted":[],"title_canon_sha256":"1d89fd8e6e46abb0cbfccbae5773abdd8e40a5d7fc5fe7e50920c73061a24be6","abstract_canon_sha256":"f64842385181da1575850af978dd65922c0b79df2baf4183684cf7f9c4edec29"},"schema_version":"1.0"},"canonical_sha256":"9532a21333e2cbd185e2afc68faa4f3e2aa42e532c609eaaf494f62535095c6e","source":{"kind":"arxiv","id":"1008.4413","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4413","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4413v1","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4413","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"SUZKEEZT4LF5","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SUZKEEZT4LF5DBPC","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SUZKEEZT","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:SUZKEEZT4LF5DBPCV7DI7KSPHY","target":"record","payload":{"canonical_record":{"source":{"id":"1008.4413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2010-08-26T01:02:40Z","cross_cats_sorted":[],"title_canon_sha256":"1d89fd8e6e46abb0cbfccbae5773abdd8e40a5d7fc5fe7e50920c73061a24be6","abstract_canon_sha256":"f64842385181da1575850af978dd65922c0b79df2baf4183684cf7f9c4edec29"},"schema_version":"1.0"},"canonical_sha256":"9532a21333e2cbd185e2afc68faa4f3e2aa42e532c609eaaf494f62535095c6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:45.347443Z","signature_b64":"uEre9z1Ao3vEOXHs8IzKmBkUFF0VNxJRCXS4+lrhOLNKxrVlGgGz7/NHMXBOlx9xPexw9HIbSLEoHwd1yFoWCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9532a21333e2cbd185e2afc68faa4f3e2aa42e532c609eaaf494f62535095c6e","last_reissued_at":"2026-05-18T04:41:45.347019Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:45.347019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.4413","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":"2026-05-18T04:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nMBKLDofN/NOuB8fKz2IsT2eiwFXitxwGcIOUtRhx1/wTwnJAeY9lwDLk4eV0CFrR8zUW6bzab6bM3HKP7lLDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:12:10.263417Z"},"content_sha256":"5d08d01271d73ddae6f4bebe3838a21c8ff5ab20e29536bc58df8f60085937b0","schema_version":"1.0","event_id":"sha256:5d08d01271d73ddae6f4bebe3838a21c8ff5ab20e29536bc58df8f60085937b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:SUZKEEZT4LF5DBPCV7DI7KSPHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectrum Shaping via Network Coding in Cognitive Radio Networks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Jason H. Li, Junshan Zhang, Shanshan Wang, Yalin E. Sagduyu","submitted_at":"2010-08-26T01:02:40Z","abstract_excerpt":"We consider a cognitive radio network where primary users (PUs) employ network coding for data transmissions. We view network coding as a spectrum shaper, in the sense that it increases spectrum availability to secondary users (SUs) and offers more structure of spectrum holes that improves the predictability of the primary spectrum. With this spectrum shaping effect of network coding, each SU can carry out adaptive channel sensing by dynamically updating the list of the PU channels predicted to be idle while giving priority to these channels when sensing. This dynamic spectrum access approach "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4413","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":"2026-05-18T04:41:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wY3qZWF9f9FC1GtLWDEFGTeBrCkDxf2qztgBc5SO97Tzr+8tYYXQImMbjiH+WEYKj/U+EvUePIDou5T6WVLbBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T21:12:10.264069Z"},"content_sha256":"a063fd295488ad62ada8034a635c9fd1f2404200dc79a64105a7edd7b904f8d2","schema_version":"1.0","event_id":"sha256:a063fd295488ad62ada8034a635c9fd1f2404200dc79a64105a7edd7b904f8d2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/bundle.json","state_url":"https://pith.science/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/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":"2026-05-29T21:12:10Z","links":{"resolver":"https://pith.science/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY","bundle":"https://pith.science/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/bundle.json","state":"https://pith.science/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SUZKEEZT4LF5DBPCV7DI7KSPHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:SUZKEEZT4LF5DBPCV7DI7KSPHY","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":"f64842385181da1575850af978dd65922c0b79df2baf4183684cf7f9c4edec29","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2010-08-26T01:02:40Z","title_canon_sha256":"1d89fd8e6e46abb0cbfccbae5773abdd8e40a5d7fc5fe7e50920c73061a24be6"},"schema_version":"1.0","source":{"id":"1008.4413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4413","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4413v1","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4413","created_at":"2026-05-18T04:41:45Z"},{"alias_kind":"pith_short_12","alias_value":"SUZKEEZT4LF5","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SUZKEEZT4LF5DBPC","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SUZKEEZT","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:a063fd295488ad62ada8034a635c9fd1f2404200dc79a64105a7edd7b904f8d2","target":"graph","created_at":"2026-05-18T04:41:45Z","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":"We consider a cognitive radio network where primary users (PUs) employ network coding for data transmissions. We view network coding as a spectrum shaper, in the sense that it increases spectrum availability to secondary users (SUs) and offers more structure of spectrum holes that improves the predictability of the primary spectrum. With this spectrum shaping effect of network coding, each SU can carry out adaptive channel sensing by dynamically updating the list of the PU channels predicted to be idle while giving priority to these channels when sensing. This dynamic spectrum access approach ","authors_text":"Jason H. Li, Junshan Zhang, Shanshan Wang, Yalin E. Sagduyu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2010-08-26T01:02:40Z","title":"Spectrum Shaping via Network Coding in Cognitive Radio Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4413","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":"sha256:5d08d01271d73ddae6f4bebe3838a21c8ff5ab20e29536bc58df8f60085937b0","target":"record","created_at":"2026-05-18T04:41:45Z","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":"f64842385181da1575850af978dd65922c0b79df2baf4183684cf7f9c4edec29","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2010-08-26T01:02:40Z","title_canon_sha256":"1d89fd8e6e46abb0cbfccbae5773abdd8e40a5d7fc5fe7e50920c73061a24be6"},"schema_version":"1.0","source":{"id":"1008.4413","kind":"arxiv","version":1}},"canonical_sha256":"9532a21333e2cbd185e2afc68faa4f3e2aa42e532c609eaaf494f62535095c6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9532a21333e2cbd185e2afc68faa4f3e2aa42e532c609eaaf494f62535095c6e","first_computed_at":"2026-05-18T04:41:45.347019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:45.347019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uEre9z1Ao3vEOXHs8IzKmBkUFF0VNxJRCXS4+lrhOLNKxrVlGgGz7/NHMXBOlx9xPexw9HIbSLEoHwd1yFoWCw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:45.347443Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.4413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d08d01271d73ddae6f4bebe3838a21c8ff5ab20e29536bc58df8f60085937b0","sha256:a063fd295488ad62ada8034a635c9fd1f2404200dc79a64105a7edd7b904f8d2"],"state_sha256":"3532cd8304452e03bfca35423ff2172b5d15181b18c4cf2fc7292f136f0f0978"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mq5T5AcpL//IVYELLXRGAWNK1+Qv7berYEqIf7kHAarERAfUrRfNVbLfyQf1PgIyvInKzbdBX3PQZCRPjD6SAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T21:12:10.267809Z","bundle_sha256":"ed83590ac4135230e67cafb07ca6982f6a78b1f9b7ecb677d3bf17ca27137167"}}