{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7FLDUMFYBXPJYRUITRXMCGWDLH","short_pith_number":"pith:7FLDUMFY","canonical_record":{"source":{"id":"1704.00993","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-04-04T13:06:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"7d320becfb59df01965ee38a97ddab3b53d094c72bc52dea7f7a6e38b392d454","abstract_canon_sha256":"2a9268bacb05557de7182a8fc3015b6e1e9e5a6bc2f2753673e951b576b669ae"},"schema_version":"1.0"},"canonical_sha256":"f9563a30b80dde9c46889c6ec11ac359f47bc719a8c941dab735a9d320bf8ae2","source":{"kind":"arxiv","id":"1704.00993","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00993","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00993v1","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00993","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"pith_short_12","alias_value":"7FLDUMFYBXPJ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7FLDUMFYBXPJYRUI","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7FLDUMFY","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7FLDUMFYBXPJYRUITRXMCGWDLH","target":"record","payload":{"canonical_record":{"source":{"id":"1704.00993","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-04-04T13:06:22Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"7d320becfb59df01965ee38a97ddab3b53d094c72bc52dea7f7a6e38b392d454","abstract_canon_sha256":"2a9268bacb05557de7182a8fc3015b6e1e9e5a6bc2f2753673e951b576b669ae"},"schema_version":"1.0"},"canonical_sha256":"f9563a30b80dde9c46889c6ec11ac359f47bc719a8c941dab735a9d320bf8ae2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:16.519961Z","signature_b64":"T7G3NRmCFmWlhq73SXRDzQOkW9YJG9LOD6q6GTFsDszB1H6URX3GvCTJs6vEFA8BcUl7rCFODj18aWm+2oqzAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9563a30b80dde9c46889c6ec11ac359f47bc719a8c941dab735a9d320bf8ae2","last_reissued_at":"2026-05-18T00:47:16.519258Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:16.519258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.00993","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":"2026-05-18T00:47:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"77x4mmRnsN3bboolO1epJOLJUg5Cx+LxTyD2ww5yt3elvg8NHLrag29YwK/eO18O+DcbY/lXIRuHz3KMDGlOBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:29:04.403719Z"},"content_sha256":"1e1e414043fee3c02aa81e107e6ca9f07d91170ab07a498b2f8a5ba04d996611","schema_version":"1.0","event_id":"sha256:1e1e414043fee3c02aa81e107e6ca9f07d91170ab07a498b2f8a5ba04d996611"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7FLDUMFYBXPJYRUITRXMCGWDLH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Transmitted Reference Pulse Cluster Based Ultra-Wideband Transmitter Design","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Ping Lu, Xiaodai Dong, Yiming Huo","submitted_at":"2017-04-04T13:06:22Z","abstract_excerpt":"An energy efficient ultra-wideband (UWB) transmitter based on the novel transmitted reference pulse cluster (TRPC) modulation scheme is presented. The TRPC-UWB transmitter integrates, namely, wideband active baluns, wideband I-Q modulator based up-conversion mixer, and differential to single-ended converter. The integrated circuits of TRPC-UWB front end is designed and implemented in the 130-nm CMOS process technology. the measured worst-case carrier leakage suppression is 22.4 dBc, while the single sideband suppression is higher than 31.6 dBc, operating at the frequency from 3.1 GHz to 8.2 GH"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00993","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":"2026-05-18T00:47:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I45s6eyaWMBJJT4YpNF0JWUfqT4yZ8+9VDG3+WF1amFcJwtCEva8Ga7SmRxKZyDL6OGo19vj2TZUdEsW3A4QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:29:04.404048Z"},"content_sha256":"da9576e6b728cea485347895a041d023f5dc57589077641fcf4c45ac9503f6f1","schema_version":"1.0","event_id":"sha256:da9576e6b728cea485347895a041d023f5dc57589077641fcf4c45ac9503f6f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/bundle.json","state_url":"https://pith.science/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/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":"2026-06-01T21:29:04Z","links":{"resolver":"https://pith.science/pith/7FLDUMFYBXPJYRUITRXMCGWDLH","bundle":"https://pith.science/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/bundle.json","state":"https://pith.science/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7FLDUMFYBXPJYRUITRXMCGWDLH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7FLDUMFYBXPJYRUITRXMCGWDLH","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":"2a9268bacb05557de7182a8fc3015b6e1e9e5a6bc2f2753673e951b576b669ae","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-04-04T13:06:22Z","title_canon_sha256":"7d320becfb59df01965ee38a97ddab3b53d094c72bc52dea7f7a6e38b392d454"},"schema_version":"1.0","source":{"id":"1704.00993","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00993","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00993v1","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00993","created_at":"2026-05-18T00:47:16Z"},{"alias_kind":"pith_short_12","alias_value":"7FLDUMFYBXPJ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7FLDUMFYBXPJYRUI","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7FLDUMFY","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:da9576e6b728cea485347895a041d023f5dc57589077641fcf4c45ac9503f6f1","target":"graph","created_at":"2026-05-18T00:47:16Z","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":"An energy efficient ultra-wideband (UWB) transmitter based on the novel transmitted reference pulse cluster (TRPC) modulation scheme is presented. The TRPC-UWB transmitter integrates, namely, wideband active baluns, wideband I-Q modulator based up-conversion mixer, and differential to single-ended converter. The integrated circuits of TRPC-UWB front end is designed and implemented in the 130-nm CMOS process technology. the measured worst-case carrier leakage suppression is 22.4 dBc, while the single sideband suppression is higher than 31.6 dBc, operating at the frequency from 3.1 GHz to 8.2 GH","authors_text":"Ping Lu, Xiaodai Dong, Yiming Huo","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-04-04T13:06:22Z","title":"A New Transmitted Reference Pulse Cluster Based Ultra-Wideband Transmitter Design"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00993","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":"sha256:1e1e414043fee3c02aa81e107e6ca9f07d91170ab07a498b2f8a5ba04d996611","target":"record","created_at":"2026-05-18T00:47:16Z","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":"2a9268bacb05557de7182a8fc3015b6e1e9e5a6bc2f2753673e951b576b669ae","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2017-04-04T13:06:22Z","title_canon_sha256":"7d320becfb59df01965ee38a97ddab3b53d094c72bc52dea7f7a6e38b392d454"},"schema_version":"1.0","source":{"id":"1704.00993","kind":"arxiv","version":1}},"canonical_sha256":"f9563a30b80dde9c46889c6ec11ac359f47bc719a8c941dab735a9d320bf8ae2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9563a30b80dde9c46889c6ec11ac359f47bc719a8c941dab735a9d320bf8ae2","first_computed_at":"2026-05-18T00:47:16.519258Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:16.519258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T7G3NRmCFmWlhq73SXRDzQOkW9YJG9LOD6q6GTFsDszB1H6URX3GvCTJs6vEFA8BcUl7rCFODj18aWm+2oqzAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:16.519961Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.00993","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e1e414043fee3c02aa81e107e6ca9f07d91170ab07a498b2f8a5ba04d996611","sha256:da9576e6b728cea485347895a041d023f5dc57589077641fcf4c45ac9503f6f1"],"state_sha256":"a2022b23b4dcab6d584013d4ed8bfd175d85a169d189c6448a67adf8ef4f39ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E2zar3gWayJeyMU4N7QuGGqp6FyxIrASwSkpjv6U3hAoGC8IP5xFJIU1bZWlrJseAItG6+5l4UslRptoqmqOBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:29:04.405836Z","bundle_sha256":"875f99a0e412bbc4b6d955f190fc319d9baa43e8a416a96ac9efa96c31b603c1"}}