{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:4OPHD2OZEO3JABXEN3KCKZOGGW","short_pith_number":"pith:4OPHD2OZ","canonical_record":{"source":{"id":"1305.6003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-05-26T08:32:30Z","cross_cats_sorted":["cs.IT","math.IT","math.OC"],"title_canon_sha256":"e4a25cb9e21a95e6263185694acfe49d8e41244b4cc47e003aa2fb25005a9129","abstract_canon_sha256":"5647ac2e2963d096c5a6ab669cbd93cb991ac6aed6f1f7ce63878d33f51e9d2b"},"schema_version":"1.0"},"canonical_sha256":"e39e71e9d923b69006e46ed42565c635ac0ffb0271495487cf2d9ce3eb71b6e0","source":{"kind":"arxiv","id":"1305.6003","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.6003","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1305.6003v1","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.6003","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"4OPHD2OZEO3J","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4OPHD2OZEO3JABXE","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4OPHD2OZ","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:4OPHD2OZEO3JABXEN3KCKZOGGW","target":"record","payload":{"canonical_record":{"source":{"id":"1305.6003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-05-26T08:32:30Z","cross_cats_sorted":["cs.IT","math.IT","math.OC"],"title_canon_sha256":"e4a25cb9e21a95e6263185694acfe49d8e41244b4cc47e003aa2fb25005a9129","abstract_canon_sha256":"5647ac2e2963d096c5a6ab669cbd93cb991ac6aed6f1f7ce63878d33f51e9d2b"},"schema_version":"1.0"},"canonical_sha256":"e39e71e9d923b69006e46ed42565c635ac0ffb0271495487cf2d9ce3eb71b6e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:53.158640Z","signature_b64":"hzQLnWK/KJjExr4bYrVlP2rfRj9vr1CxM28QcB7Yo5yl7z/DOgNDygWIrXMHmIy8WXlPgFfMiZsnmH0Hp6aEBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e39e71e9d923b69006e46ed42565c635ac0ffb0271495487cf2d9ce3eb71b6e0","last_reissued_at":"2026-05-18T03:24:53.158100Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:53.158100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.6003","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":"2026-05-18T03:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qB2U9qLwTNvZZAsiGFqwKWQ1NdFG9FoBHtlqS+9fKJwhkAqJB9henrNyis7HSZzV3h7KaQOZ8TykuOLui9BmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:08:39.198889Z"},"content_sha256":"60073bd2bcad9ae870213890c47cb9a6273a8e1d6179c1309fe7a2cd86c6c988","schema_version":"1.0","event_id":"sha256:60073bd2bcad9ae870213890c47cb9a6273a8e1d6179c1309fe7a2cd86c6c988"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:4OPHD2OZEO3JABXEN3KCKZOGGW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploiting Self-Interference Suppression for Improved Spectrum Awareness/Efficiency in Cognitive Radio Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.IT","math.IT","math.OC"],"primary_cat":"cs.NI","authors_text":"Marwan Krunz, Wessam Afifi","submitted_at":"2013-05-26T08:32:30Z","abstract_excerpt":"Inspired by recent developments in full-duplex communications, we propose and study new modes of operation for cognitive radios with the goal of achieving improved primary user (PU) detection and/or secondary user (SU) throughput. Specifically, we consider an opportunistic PU/SU setting in which the SU is equipped with partial/complete self-interference suppression (SIS), enabling it to transmit and receive/sense at the same time. Following a brief sensing period, the SU can operate in either simultaneous transmit-and-sense (TS) mode or simultaneous transmit-and-receive (TR) mode. We analytica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.6003","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":"2026-05-18T03:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6NLrlZYSqqf6dLGRHaUUIRRC4FOFnku5fXSmpUzPKP4AwA73aatLvMefaq884u39i1lIcHglZJPD4plMMpBPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T21:08:39.199229Z"},"content_sha256":"4a7da5e77e1df11882c7084b2add7a51dfbcedfac0aaa0c9c8eadc6f094caec3","schema_version":"1.0","event_id":"sha256:4a7da5e77e1df11882c7084b2add7a51dfbcedfac0aaa0c9c8eadc6f094caec3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/bundle.json","state_url":"https://pith.science/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/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":"2026-06-04T21:08:39Z","links":{"resolver":"https://pith.science/pith/4OPHD2OZEO3JABXEN3KCKZOGGW","bundle":"https://pith.science/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/bundle.json","state":"https://pith.science/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4OPHD2OZEO3JABXEN3KCKZOGGW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4OPHD2OZEO3JABXEN3KCKZOGGW","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":"5647ac2e2963d096c5a6ab669cbd93cb991ac6aed6f1f7ce63878d33f51e9d2b","cross_cats_sorted":["cs.IT","math.IT","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-05-26T08:32:30Z","title_canon_sha256":"e4a25cb9e21a95e6263185694acfe49d8e41244b4cc47e003aa2fb25005a9129"},"schema_version":"1.0","source":{"id":"1305.6003","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.6003","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1305.6003v1","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.6003","created_at":"2026-05-18T03:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"4OPHD2OZEO3J","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4OPHD2OZEO3JABXE","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4OPHD2OZ","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:4a7da5e77e1df11882c7084b2add7a51dfbcedfac0aaa0c9c8eadc6f094caec3","target":"graph","created_at":"2026-05-18T03:24:53Z","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":"Inspired by recent developments in full-duplex communications, we propose and study new modes of operation for cognitive radios with the goal of achieving improved primary user (PU) detection and/or secondary user (SU) throughput. Specifically, we consider an opportunistic PU/SU setting in which the SU is equipped with partial/complete self-interference suppression (SIS), enabling it to transmit and receive/sense at the same time. Following a brief sensing period, the SU can operate in either simultaneous transmit-and-sense (TS) mode or simultaneous transmit-and-receive (TR) mode. We analytica","authors_text":"Marwan Krunz, Wessam Afifi","cross_cats":["cs.IT","math.IT","math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-05-26T08:32:30Z","title":"Exploiting Self-Interference Suppression for Improved Spectrum Awareness/Efficiency in Cognitive Radio Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.6003","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":"sha256:60073bd2bcad9ae870213890c47cb9a6273a8e1d6179c1309fe7a2cd86c6c988","target":"record","created_at":"2026-05-18T03:24:53Z","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":"5647ac2e2963d096c5a6ab669cbd93cb991ac6aed6f1f7ce63878d33f51e9d2b","cross_cats_sorted":["cs.IT","math.IT","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-05-26T08:32:30Z","title_canon_sha256":"e4a25cb9e21a95e6263185694acfe49d8e41244b4cc47e003aa2fb25005a9129"},"schema_version":"1.0","source":{"id":"1305.6003","kind":"arxiv","version":1}},"canonical_sha256":"e39e71e9d923b69006e46ed42565c635ac0ffb0271495487cf2d9ce3eb71b6e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e39e71e9d923b69006e46ed42565c635ac0ffb0271495487cf2d9ce3eb71b6e0","first_computed_at":"2026-05-18T03:24:53.158100Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:53.158100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hzQLnWK/KJjExr4bYrVlP2rfRj9vr1CxM28QcB7Yo5yl7z/DOgNDygWIrXMHmIy8WXlPgFfMiZsnmH0Hp6aEBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:53.158640Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.6003","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60073bd2bcad9ae870213890c47cb9a6273a8e1d6179c1309fe7a2cd86c6c988","sha256:4a7da5e77e1df11882c7084b2add7a51dfbcedfac0aaa0c9c8eadc6f094caec3"],"state_sha256":"1b2ca14558668e4648b340a33184e6cb16c48ef5d03ce9f42fdee6ef8873aaee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smSjTiL1dHCgKdTbknfKyWiM6Q9hYg/owtB2/GfxMUpypKulIMtV0qEc5JSoBJON1y/LQm4uU06+sIrjS7TGAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T21:08:39.201273Z","bundle_sha256":"0d7725be65eca0dce7f430f9a6883862b576347ef94d2e0b6e5c9a0b3355e6dd"}}