{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:JEGG6I4AMQHMC5MF2YXINF572M","short_pith_number":"pith:JEGG6I4A","canonical_record":{"source":{"id":"2106.14734","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T14:06:07Z","cross_cats_sorted":[],"title_canon_sha256":"6030f5c9065c7e83c6b602d37e63d39e5d065621589d2d5f10bfe4db3d8cad41","abstract_canon_sha256":"b807c0152b42dd64b18795bbd9cadbd200fa0d7f8441749c5966d2be154c8612"},"schema_version":"1.0"},"canonical_sha256":"490c6f2380640ec17585d62e8697bfd32223e983e35f5a7fb712745a0d5a15e3","source":{"kind":"arxiv","id":"2106.14734","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.14734","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"arxiv_version","alias_value":"2106.14734v1","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.14734","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_12","alias_value":"JEGG6I4AMQHM","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"JEGG6I4AMQHMC5MF","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"JEGG6I4A","created_at":"2026-07-05T03:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:JEGG6I4AMQHMC5MF2YXINF572M","target":"record","payload":{"canonical_record":{"source":{"id":"2106.14734","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T14:06:07Z","cross_cats_sorted":[],"title_canon_sha256":"6030f5c9065c7e83c6b602d37e63d39e5d065621589d2d5f10bfe4db3d8cad41","abstract_canon_sha256":"b807c0152b42dd64b18795bbd9cadbd200fa0d7f8441749c5966d2be154c8612"},"schema_version":"1.0"},"canonical_sha256":"490c6f2380640ec17585d62e8697bfd32223e983e35f5a7fb712745a0d5a15e3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:28:19.983850Z","signature_b64":"udwRbt0dJ6a1LVS6pi/UUdbet6A85UHJhnFAA5mm/5IafDOQRDeAfUzPEQ+0JAootKX2KeUlhKknM+DCk6qcCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"490c6f2380640ec17585d62e8697bfd32223e983e35f5a7fb712745a0d5a15e3","last_reissued_at":"2026-07-05T03:28:19.983366Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:28:19.983366Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.14734","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":"2026-07-05T03:28:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JHrDidHX0MkbB9vO0zkMmsii8DSln3GTeoSrDf3SCDuggG0A0y38x9mJ3vtV8LbwG7oFwMojxb+YP8QPmlj9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T16:10:42.768879Z"},"content_sha256":"994c88da5f051e737d2b005f692004357586f140c75a318a781ed2441a12af87","schema_version":"1.0","event_id":"sha256:994c88da5f051e737d2b005f692004357586f140c75a318a781ed2441a12af87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:JEGG6I4AMQHMC5MF2YXINF572M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong quantum computational advantage using a superconducting quantum processor","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chao-Yang Lu, Cha Zhang, Cheng Guo, Cheng-Zhi Peng, Chen Zha, Chong Ying, Chu Guo, Chun Lin, Dachao Wu, Dan Qiao, Daojin Fan, Fusheng Chen, Futian Liang, Haibin Zhang, Han Zhao, Haoran Qian, Hao Rong, He-Liang Huang, Hong Su, Hui Deng, Jiale Yu, Jianghan Yin, Jian-Wei Pan, Jin Lin, Kaili Zhang, Kai Yan, Lianchen Han, Liangyuan Wang, Liang Zhou, Lihua Sun, Linyin Hong, Liping Li, Ming-Cheng Chen, Ming Gong, Na Li, Qingling Zhu, Shaojun Guo, Shaowei Li, Shiyu Wang, Sirui Cao, Tung-Hsun Chung, Wan-Su Bao, Weifeng Yang, Xiaobo Zhu, Xiawei Chen, Yajie Du, Yangsen Ye, Yang Yang, Yiming Zhang, Yong-Heng Huo, Youwei Zhao, Yuan Li, Yulin Wu, Yu Xu","submitted_at":"2021-06-28T14:06:07Z","abstract_excerpt":"Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hardware and algorithmic improvements. Here, we develop a two-dimensional programmable superconducting quantum processor, \\textit{Zuchongzhi}, which is composed of 66 functional qubits in a tunable coupling architecture. To characterize the performance of the whole system, we perform random quantum circuits sampling for benchmarking, up to a system size of 56 qubits and 20 cycles. The computational cost of the classical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.14734","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.14734/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:28:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bejTzhuv7R0HYqKMnNi0irXQodshVA2AWwR6OqLr4cWjPWKR/p1h/6o5OAbqw+CwLCzUodvmUUus2ILMkSJnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T16:10:42.769408Z"},"content_sha256":"3a7a75ed990e34d5b2c6380ede6077875f50f1744ea8439b95eb0538fa035d80","schema_version":"1.0","event_id":"sha256:3a7a75ed990e34d5b2c6380ede6077875f50f1744ea8439b95eb0538fa035d80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JEGG6I4AMQHMC5MF2YXINF572M/bundle.json","state_url":"https://pith.science/pith/JEGG6I4AMQHMC5MF2YXINF572M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JEGG6I4AMQHMC5MF2YXINF572M/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":"2026-08-19T16:10:42Z","links":{"resolver":"https://pith.science/pith/JEGG6I4AMQHMC5MF2YXINF572M","bundle":"https://pith.science/pith/JEGG6I4AMQHMC5MF2YXINF572M/bundle.json","state":"https://pith.science/pith/JEGG6I4AMQHMC5MF2YXINF572M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JEGG6I4AMQHMC5MF2YXINF572M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:JEGG6I4AMQHMC5MF2YXINF572M","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":"b807c0152b42dd64b18795bbd9cadbd200fa0d7f8441749c5966d2be154c8612","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T14:06:07Z","title_canon_sha256":"6030f5c9065c7e83c6b602d37e63d39e5d065621589d2d5f10bfe4db3d8cad41"},"schema_version":"1.0","source":{"id":"2106.14734","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.14734","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"arxiv_version","alias_value":"2106.14734v1","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.14734","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_12","alias_value":"JEGG6I4AMQHM","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"JEGG6I4AMQHMC5MF","created_at":"2026-07-05T03:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"JEGG6I4A","created_at":"2026-07-05T03:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:3a7a75ed990e34d5b2c6380ede6077875f50f1744ea8439b95eb0538fa035d80","target":"graph","created_at":"2026-07-05T03:28:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.14734/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hardware and algorithmic improvements. Here, we develop a two-dimensional programmable superconducting quantum processor, \\textit{Zuchongzhi}, which is composed of 66 functional qubits in a tunable coupling architecture. To characterize the performance of the whole system, we perform random quantum circuits sampling for benchmarking, up to a system size of 56 qubits and 20 cycles. The computational cost of the classical ","authors_text":"Chao-Yang Lu, Cha Zhang, Cheng Guo, Cheng-Zhi Peng, Chen Zha, Chong Ying, Chu Guo, Chun Lin, Dachao Wu, Dan Qiao, Daojin Fan, Fusheng Chen, Futian Liang, Haibin Zhang, Han Zhao, Haoran Qian, Hao Rong, He-Liang Huang, Hong Su, Hui Deng, Jiale Yu, Jianghan Yin, Jian-Wei Pan, Jin Lin, Kaili Zhang, Kai Yan, Lianchen Han, Liangyuan Wang, Liang Zhou, Lihua Sun, Linyin Hong, Liping Li, Ming-Cheng Chen, Ming Gong, Na Li, Qingling Zhu, Shaojun Guo, Shaowei Li, Shiyu Wang, Sirui Cao, Tung-Hsun Chung, Wan-Su Bao, Weifeng Yang, Xiaobo Zhu, Xiawei Chen, Yajie Du, Yangsen Ye, Yang Yang, Yiming Zhang, Yong-Heng Huo, Youwei Zhao, Yuan Li, Yulin Wu, Yu Xu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T14:06:07Z","title":"Strong quantum computational advantage using a superconducting quantum processor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.14734","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":"sha256:994c88da5f051e737d2b005f692004357586f140c75a318a781ed2441a12af87","target":"record","created_at":"2026-07-05T03:28:19Z","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":"b807c0152b42dd64b18795bbd9cadbd200fa0d7f8441749c5966d2be154c8612","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T14:06:07Z","title_canon_sha256":"6030f5c9065c7e83c6b602d37e63d39e5d065621589d2d5f10bfe4db3d8cad41"},"schema_version":"1.0","source":{"id":"2106.14734","kind":"arxiv","version":1}},"canonical_sha256":"490c6f2380640ec17585d62e8697bfd32223e983e35f5a7fb712745a0d5a15e3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"490c6f2380640ec17585d62e8697bfd32223e983e35f5a7fb712745a0d5a15e3","first_computed_at":"2026-07-05T03:28:19.983366Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:28:19.983366Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"udwRbt0dJ6a1LVS6pi/UUdbet6A85UHJhnFAA5mm/5IafDOQRDeAfUzPEQ+0JAootKX2KeUlhKknM+DCk6qcCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:28:19.983850Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.14734","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:994c88da5f051e737d2b005f692004357586f140c75a318a781ed2441a12af87","sha256:3a7a75ed990e34d5b2c6380ede6077875f50f1744ea8439b95eb0538fa035d80"],"state_sha256":"db172348ee5c7f6c5f5475f1c7321629d70f5d6c8257136dd1f4aa473e9c52b5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ytRSlxqB/nB8ihXiqRcXk6RgbjnIPmDksNVkipMEmbA4/kE/ixy5CETGNGljLQuCA6K6h+lO5nxTQXO3TR3zAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T16:10:42.774466Z","bundle_sha256":"4219ae712acfb8eee459d5f8c45c0f1d68d809a25cc0c519d334502a9e812c41"}}