{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:CVNRM67KEDCYKKJ3VICREEPQOI","short_pith_number":"pith:CVNRM67K","canonical_record":{"source":{"id":"1403.1615","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-06T22:44:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"5cff3f77f1e73013fad7e384dc711a202f2aca0c3d71f3a18a961337a9cda92b","abstract_canon_sha256":"654e614e0f4f836ca7c9074b720cc4deb92ef85f20645d414c6bb6163011cd96"},"schema_version":"1.0"},"canonical_sha256":"155b167bea20c585293baa051211f07211a9bd029d5fcba7c2391b2a03d83794","source":{"kind":"arxiv","id":"1403.1615","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1615","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1615v1","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1615","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"CVNRM67KEDCY","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"CVNRM67KEDCYKKJ3","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"CVNRM67K","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:CVNRM67KEDCYKKJ3VICREEPQOI","target":"record","payload":{"canonical_record":{"source":{"id":"1403.1615","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-06T22:44:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"5cff3f77f1e73013fad7e384dc711a202f2aca0c3d71f3a18a961337a9cda92b","abstract_canon_sha256":"654e614e0f4f836ca7c9074b720cc4deb92ef85f20645d414c6bb6163011cd96"},"schema_version":"1.0"},"canonical_sha256":"155b167bea20c585293baa051211f07211a9bd029d5fcba7c2391b2a03d83794","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:52.100910Z","signature_b64":"dTe9JTdpzUhBEJqPGB10niXRtXQtjrp1BVIm058oimZbw6cR0+t61TsJ1SFk/I58/5AKGDsDhF2+a8BLZgVKDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"155b167bea20c585293baa051211f07211a9bd029d5fcba7c2391b2a03d83794","last_reissued_at":"2026-05-18T00:57:52.100451Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:52.100451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.1615","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":"2026-05-18T00:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tKNp+fx7+S/hxjdRi0RcoxIG1Af3FU4SCe2XpTl/JXb2JcZi/KTh8psumkRLKmZZ8TYt0SQzR2BsxmTyDi5sDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T02:53:01.171134Z"},"content_sha256":"a8ad31d677fd8d9ed4e77a1b563af7eb39a6c995a1eee6058663358732f1b6a6","schema_version":"1.0","event_id":"sha256:a8ad31d677fd8d9ed4e77a1b563af7eb39a6c995a1eee6058663358732f1b6a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:CVNRM67KEDCYKKJ3VICREEPQOI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interference Localization for Uplink OFDMA Systems in Presence of CFOs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Arman Farhang, Arslan Javaid Majid, Behrouz Farhang-Boroujeny, Linda E. Doyle, Nicola Marchetti","submitted_at":"2014-03-06T22:44:22Z","abstract_excerpt":"Multiple carrier frequency offsets (CFOs) present in the uplink of orthogonal frequency division multiple access (OFDMA) systems adversely affect subcarrier orthogonality and impose a serious performance loss. In this paper, we propose the application of time domain receiver windowing to concentrate the leakage caused by CFOs to a few adjacent subcarriers with almost no additional computational complexity. This allows us to approximate the interference matrix with a quasi-banded matrix by neglecting small elements outside a certain band which enables robust and computationally efficient signal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1615","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":"2026-05-18T00:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4/wqeXS8JF/8EbqaP28NZsqCAFj1U4KK076f+YEAWtAXzmEG5A7mLHmLZ6TpquNeTES0lOEvzulaR1BZn8SCCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T02:53:01.171889Z"},"content_sha256":"3d1a4d9cbf18ef3395dc6fd54ae42932815381a9dcf32daab51c17a80bb2ca2a","schema_version":"1.0","event_id":"sha256:3d1a4d9cbf18ef3395dc6fd54ae42932815381a9dcf32daab51c17a80bb2ca2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CVNRM67KEDCYKKJ3VICREEPQOI/bundle.json","state_url":"https://pith.science/pith/CVNRM67KEDCYKKJ3VICREEPQOI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CVNRM67KEDCYKKJ3VICREEPQOI/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":"2026-06-12T02:53:01Z","links":{"resolver":"https://pith.science/pith/CVNRM67KEDCYKKJ3VICREEPQOI","bundle":"https://pith.science/pith/CVNRM67KEDCYKKJ3VICREEPQOI/bundle.json","state":"https://pith.science/pith/CVNRM67KEDCYKKJ3VICREEPQOI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CVNRM67KEDCYKKJ3VICREEPQOI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:CVNRM67KEDCYKKJ3VICREEPQOI","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":"654e614e0f4f836ca7c9074b720cc4deb92ef85f20645d414c6bb6163011cd96","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-06T22:44:22Z","title_canon_sha256":"5cff3f77f1e73013fad7e384dc711a202f2aca0c3d71f3a18a961337a9cda92b"},"schema_version":"1.0","source":{"id":"1403.1615","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1615","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1615v1","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1615","created_at":"2026-05-18T00:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"CVNRM67KEDCY","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"CVNRM67KEDCYKKJ3","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"CVNRM67K","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:3d1a4d9cbf18ef3395dc6fd54ae42932815381a9dcf32daab51c17a80bb2ca2a","target":"graph","created_at":"2026-05-18T00:57:52Z","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":"Multiple carrier frequency offsets (CFOs) present in the uplink of orthogonal frequency division multiple access (OFDMA) systems adversely affect subcarrier orthogonality and impose a serious performance loss. In this paper, we propose the application of time domain receiver windowing to concentrate the leakage caused by CFOs to a few adjacent subcarriers with almost no additional computational complexity. This allows us to approximate the interference matrix with a quasi-banded matrix by neglecting small elements outside a certain band which enables robust and computationally efficient signal","authors_text":"Arman Farhang, Arslan Javaid Majid, Behrouz Farhang-Boroujeny, Linda E. Doyle, Nicola Marchetti","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-06T22:44:22Z","title":"Interference Localization for Uplink OFDMA Systems in Presence of CFOs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1615","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:a8ad31d677fd8d9ed4e77a1b563af7eb39a6c995a1eee6058663358732f1b6a6","target":"record","created_at":"2026-05-18T00:57:52Z","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":"654e614e0f4f836ca7c9074b720cc4deb92ef85f20645d414c6bb6163011cd96","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2014-03-06T22:44:22Z","title_canon_sha256":"5cff3f77f1e73013fad7e384dc711a202f2aca0c3d71f3a18a961337a9cda92b"},"schema_version":"1.0","source":{"id":"1403.1615","kind":"arxiv","version":1}},"canonical_sha256":"155b167bea20c585293baa051211f07211a9bd029d5fcba7c2391b2a03d83794","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"155b167bea20c585293baa051211f07211a9bd029d5fcba7c2391b2a03d83794","first_computed_at":"2026-05-18T00:57:52.100451Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:52.100451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dTe9JTdpzUhBEJqPGB10niXRtXQtjrp1BVIm058oimZbw6cR0+t61TsJ1SFk/I58/5AKGDsDhF2+a8BLZgVKDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:52.100910Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.1615","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8ad31d677fd8d9ed4e77a1b563af7eb39a6c995a1eee6058663358732f1b6a6","sha256:3d1a4d9cbf18ef3395dc6fd54ae42932815381a9dcf32daab51c17a80bb2ca2a"],"state_sha256":"cdc9ce3a40a4dbc5b1dec24c2666909beb283d5fe97a814b78e7526f9aadc4af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VIZUKbR/FmEXdjKmMwOcwAwH5JyxFnJJsGzTbxFi1MTyQlPnUnO1WHYzHRf7QZOWV7tVkAWpaidT4kCQ8lSjBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T02:53:01.176042Z","bundle_sha256":"a6a6e055396a73e63c13e94a4e5470a72edbc27cc829cde8dc34506576cf130e"}}