{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2LTAMO25UQPUD3S4LBQ4Y36ASA","short_pith_number":"pith:2LTAMO25","canonical_record":{"source":{"id":"1101.2405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-01-12T17:02:50Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"e0a48836a669633a97ba56c818b1842544ee8aa0b6378446daecc183f2a9d451","abstract_canon_sha256":"02e8a948917a8246556fc4c48503283767d865dd1c2e7529b9c57ac174b45a3b"},"schema_version":"1.0"},"canonical_sha256":"d2e6063b5da41f41ee5c5861cc6fc0902210049b3401c276b109a67329fce132","source":{"kind":"arxiv","id":"1101.2405","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2405","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2405v1","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2405","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"pith_short_12","alias_value":"2LTAMO25UQPU","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2LTAMO25UQPUD3S4","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2LTAMO25","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2LTAMO25UQPUD3S4LBQ4Y36ASA","target":"record","payload":{"canonical_record":{"source":{"id":"1101.2405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-01-12T17:02:50Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"e0a48836a669633a97ba56c818b1842544ee8aa0b6378446daecc183f2a9d451","abstract_canon_sha256":"02e8a948917a8246556fc4c48503283767d865dd1c2e7529b9c57ac174b45a3b"},"schema_version":"1.0"},"canonical_sha256":"d2e6063b5da41f41ee5c5861cc6fc0902210049b3401c276b109a67329fce132","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:31:43.087908Z","signature_b64":"JkAn3RjthYltzIkwQS2vI1nlhsB1bhj90tiryi/yuRObHRsPmQhn5ppfcBaBkJI2exL4y1ZB60snbC6rL5fRBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2e6063b5da41f41ee5c5861cc6fc0902210049b3401c276b109a67329fce132","last_reissued_at":"2026-05-18T04:31:43.087451Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:31:43.087451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.2405","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":"2026-05-18T04:31:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ArHa/Fein+nifSgx3xejmm4zKjdFstDVNhfBYYVa/BB7gWJlj2vj2QWU3jPssKcQsDlu7oKkyhbMgNbYn1GnAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:58:05.490226Z"},"content_sha256":"06a3833dce4634b1563eb0db326df7c928f87c5968fbf664f72be857e2ffaac4","schema_version":"1.0","event_id":"sha256:06a3833dce4634b1563eb0db326df7c928f87c5968fbf664f72be857e2ffaac4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2LTAMO25UQPUD3S4LBQ4Y36ASA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved Peak Cancellation for PAPR Reduction in OFDM Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Lilin Dan, Shaoqian Li, Wei Ni, Yue Xiao","submitted_at":"2011-01-12T17:02:50Z","abstract_excerpt":"This letter presents an improved peak cancellation (PC) scheme for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The main idea is based on a serial peak cancellation (SPC) mode for alleviating the peak regrowth of the conventional schemes. Based on the SPC mode, two particular algorithms are developed with different tradeoff between PAPR and computational complexity. Simulation shows that the proposed scheme has a better tradeoff among PAPR, complexity and signal distortion than the conventional schemes."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2405","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":"2026-05-18T04:31:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7NQNy7+4Zf2dJ+/hRMPLxHUClEKszeY349re1/7t+ld3mCk0qj1chWEcC07LdibZsCYo8+ISpoUVrhzRKob3DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:58:05.490878Z"},"content_sha256":"a0f132120b4075d015b2c95ac6a943d04c16ab6e372872e742d5c7159509d664","schema_version":"1.0","event_id":"sha256:a0f132120b4075d015b2c95ac6a943d04c16ab6e372872e742d5c7159509d664"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/bundle.json","state_url":"https://pith.science/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/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":"2026-06-11T03:58:05Z","links":{"resolver":"https://pith.science/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA","bundle":"https://pith.science/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/bundle.json","state":"https://pith.science/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2LTAMO25UQPUD3S4LBQ4Y36ASA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2LTAMO25UQPUD3S4LBQ4Y36ASA","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":"02e8a948917a8246556fc4c48503283767d865dd1c2e7529b9c57ac174b45a3b","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-01-12T17:02:50Z","title_canon_sha256":"e0a48836a669633a97ba56c818b1842544ee8aa0b6378446daecc183f2a9d451"},"schema_version":"1.0","source":{"id":"1101.2405","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.2405","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"arxiv_version","alias_value":"1101.2405v1","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.2405","created_at":"2026-05-18T04:31:43Z"},{"alias_kind":"pith_short_12","alias_value":"2LTAMO25UQPU","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2LTAMO25UQPUD3S4","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2LTAMO25","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:a0f132120b4075d015b2c95ac6a943d04c16ab6e372872e742d5c7159509d664","target":"graph","created_at":"2026-05-18T04:31:43Z","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":"This letter presents an improved peak cancellation (PC) scheme for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The main idea is based on a serial peak cancellation (SPC) mode for alleviating the peak regrowth of the conventional schemes. Based on the SPC mode, two particular algorithms are developed with different tradeoff between PAPR and computational complexity. Simulation shows that the proposed scheme has a better tradeoff among PAPR, complexity and signal distortion than the conventional schemes.","authors_text":"Lilin Dan, Shaoqian Li, Wei Ni, Yue Xiao","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-01-12T17:02:50Z","title":"Improved Peak Cancellation for PAPR Reduction in OFDM Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.2405","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":"sha256:06a3833dce4634b1563eb0db326df7c928f87c5968fbf664f72be857e2ffaac4","target":"record","created_at":"2026-05-18T04:31:43Z","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":"02e8a948917a8246556fc4c48503283767d865dd1c2e7529b9c57ac174b45a3b","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-01-12T17:02:50Z","title_canon_sha256":"e0a48836a669633a97ba56c818b1842544ee8aa0b6378446daecc183f2a9d451"},"schema_version":"1.0","source":{"id":"1101.2405","kind":"arxiv","version":1}},"canonical_sha256":"d2e6063b5da41f41ee5c5861cc6fc0902210049b3401c276b109a67329fce132","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2e6063b5da41f41ee5c5861cc6fc0902210049b3401c276b109a67329fce132","first_computed_at":"2026-05-18T04:31:43.087451Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:31:43.087451Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JkAn3RjthYltzIkwQS2vI1nlhsB1bhj90tiryi/yuRObHRsPmQhn5ppfcBaBkJI2exL4y1ZB60snbC6rL5fRBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:31:43.087908Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.2405","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06a3833dce4634b1563eb0db326df7c928f87c5968fbf664f72be857e2ffaac4","sha256:a0f132120b4075d015b2c95ac6a943d04c16ab6e372872e742d5c7159509d664"],"state_sha256":"e8907f60db1c394396a7de32f108fe8e14154f0f5b68ef1efaac186b6687f8d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OLI4EdyeJ2+/Dm+sN/ayny3eu6H9L6jC+cBjU7roARgWSvziD+xKd3Hw6rK+FZbCwbxjyz0WHiSr7o8BzZqrBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T03:58:05.494628Z","bundle_sha256":"6f2818213e604e5ca4aa29fb4b5c978de37b458208226a2d1b1754b878147468"}}