{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:4Q566KD2FAESS575K76G2ILX4Q","short_pith_number":"pith:4Q566KD2","canonical_record":{"source":{"id":"1506.08627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-29T13:54:00Z","cross_cats_sorted":[],"title_canon_sha256":"fb904ba91c85869087b91e853c1317dcfcb91f9db3d9f22159e1cf090187bd74","abstract_canon_sha256":"93d662ab0c93bfff9f3e51b98bfa0894fe03c36e56229d90eea95b000b809a44"},"schema_version":"1.0"},"canonical_sha256":"e43bef287a28092977fd57fc6d2177e4057a53cb4f377e4bb756a47bbc00e09b","source":{"kind":"arxiv","id":"1506.08627","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08627","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08627v2","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08627","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"pith_short_12","alias_value":"4Q566KD2FAES","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4Q566KD2FAESS575","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4Q566KD2","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:4Q566KD2FAESS575K76G2ILX4Q","target":"record","payload":{"canonical_record":{"source":{"id":"1506.08627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-29T13:54:00Z","cross_cats_sorted":[],"title_canon_sha256":"fb904ba91c85869087b91e853c1317dcfcb91f9db3d9f22159e1cf090187bd74","abstract_canon_sha256":"93d662ab0c93bfff9f3e51b98bfa0894fe03c36e56229d90eea95b000b809a44"},"schema_version":"1.0"},"canonical_sha256":"e43bef287a28092977fd57fc6d2177e4057a53cb4f377e4bb756a47bbc00e09b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:56.497685Z","signature_b64":"uT2iTRO3jUVP2cAq+MRBj0kQEQ6/XQQhFnaodF9kOTg3F3yC46yT5xDjLFOu0JGTSSagqjCxtECpAOc10oifDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e43bef287a28092977fd57fc6d2177e4057a53cb4f377e4bb756a47bbc00e09b","last_reissued_at":"2026-05-18T01:25:56.497198Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:56.497198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.08627","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:25:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pTLkXKRfCxxGKO5eB7XaeCRToEzIe/sP8YGtBheT+2zi+8gJZnDfhgJXjPOFXTtJZc1lJi9AaEpkA+fnBhGsDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T18:58:04.152624Z"},"content_sha256":"15fb61f5c509c9b3065a2321d6b2b24bb282a3225f660d4420a6b08e215d28fa","schema_version":"1.0","event_id":"sha256:15fb61f5c509c9b3065a2321d6b2b24bb282a3225f660d4420a6b08e215d28fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:4Q566KD2FAESS575K76G2ILX4Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental fault-tolerant universal quantum gates with solid-state spins under ambient conditions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Fazhan Shi, Fei Kong, Jiangfeng Du, Jianpei Geng, Kebiao Xu, Wenchao Ma, Xing Rong, Yang Wu, Ying Liu, Zhen Jiang","submitted_at":"2015-06-29T13:54:00Z","abstract_excerpt":"Quantum computation provides great speedup over its classical counterpart for certain problems. One of the key challenges for quantum computation is to realize precise control of the quantum system in the presence of noise. Control of the spin-qubits in solids with the accuracy required by fault-tolerant quantum computation under ambient conditions remains elusive. Here, we quantitatively characterize the source of noise during quantum gate operation and demonstrate strategies to suppress the effect of these. A universal set of logic gates in a nitrogen-vacancy centre in diamond are reported w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08627","kind":"arxiv","version":2},"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":"2026-05-18T01:25:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RPclv0x5xFkI0dr0Um0+6aw3RDquPsniizeve+13GPoQ3Hgt47x4UJKetLnXZzOq2xtU4TtQRt6PHxykGIt7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T18:58:04.153011Z"},"content_sha256":"5567136763989b5c489c911960dd585246a738171fa1bd6989d1ea2ca8da1c0d","schema_version":"1.0","event_id":"sha256:5567136763989b5c489c911960dd585246a738171fa1bd6989d1ea2ca8da1c0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4Q566KD2FAESS575K76G2ILX4Q/bundle.json","state_url":"https://pith.science/pith/4Q566KD2FAESS575K76G2ILX4Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4Q566KD2FAESS575K76G2ILX4Q/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":"2026-05-19T18:58:04Z","links":{"resolver":"https://pith.science/pith/4Q566KD2FAESS575K76G2ILX4Q","bundle":"https://pith.science/pith/4Q566KD2FAESS575K76G2ILX4Q/bundle.json","state":"https://pith.science/pith/4Q566KD2FAESS575K76G2ILX4Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4Q566KD2FAESS575K76G2ILX4Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4Q566KD2FAESS575K76G2ILX4Q","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":"93d662ab0c93bfff9f3e51b98bfa0894fe03c36e56229d90eea95b000b809a44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-29T13:54:00Z","title_canon_sha256":"fb904ba91c85869087b91e853c1317dcfcb91f9db3d9f22159e1cf090187bd74"},"schema_version":"1.0","source":{"id":"1506.08627","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08627","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08627v2","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08627","created_at":"2026-05-18T01:25:56Z"},{"alias_kind":"pith_short_12","alias_value":"4Q566KD2FAES","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4Q566KD2FAESS575","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4Q566KD2","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:5567136763989b5c489c911960dd585246a738171fa1bd6989d1ea2ca8da1c0d","target":"graph","created_at":"2026-05-18T01:25:56Z","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":"Quantum computation provides great speedup over its classical counterpart for certain problems. One of the key challenges for quantum computation is to realize precise control of the quantum system in the presence of noise. Control of the spin-qubits in solids with the accuracy required by fault-tolerant quantum computation under ambient conditions remains elusive. Here, we quantitatively characterize the source of noise during quantum gate operation and demonstrate strategies to suppress the effect of these. A universal set of logic gates in a nitrogen-vacancy centre in diamond are reported w","authors_text":"Fazhan Shi, Fei Kong, Jiangfeng Du, Jianpei Geng, Kebiao Xu, Wenchao Ma, Xing Rong, Yang Wu, Ying Liu, Zhen Jiang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-29T13:54:00Z","title":"Experimental fault-tolerant universal quantum gates with solid-state spins under ambient conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08627","kind":"arxiv","version":2},"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":"sha256:15fb61f5c509c9b3065a2321d6b2b24bb282a3225f660d4420a6b08e215d28fa","target":"record","created_at":"2026-05-18T01:25:56Z","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":"93d662ab0c93bfff9f3e51b98bfa0894fe03c36e56229d90eea95b000b809a44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-29T13:54:00Z","title_canon_sha256":"fb904ba91c85869087b91e853c1317dcfcb91f9db3d9f22159e1cf090187bd74"},"schema_version":"1.0","source":{"id":"1506.08627","kind":"arxiv","version":2}},"canonical_sha256":"e43bef287a28092977fd57fc6d2177e4057a53cb4f377e4bb756a47bbc00e09b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e43bef287a28092977fd57fc6d2177e4057a53cb4f377e4bb756a47bbc00e09b","first_computed_at":"2026-05-18T01:25:56.497198Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:56.497198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uT2iTRO3jUVP2cAq+MRBj0kQEQ6/XQQhFnaodF9kOTg3F3yC46yT5xDjLFOu0JGTSSagqjCxtECpAOc10oifDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:56.497685Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.08627","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15fb61f5c509c9b3065a2321d6b2b24bb282a3225f660d4420a6b08e215d28fa","sha256:5567136763989b5c489c911960dd585246a738171fa1bd6989d1ea2ca8da1c0d"],"state_sha256":"1e3cda6da5f55f63a59f67f656ab64be99d3be200889d819779693808e0c2ec0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XTz8VUqDQk5o+dpi4XcOp1G7eBNcwC7aOezxX5eRvcOZu+q33Dqsxv29mymTRednhhjMq0/tJItuR9bSQEbwCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T18:58:04.155032Z","bundle_sha256":"a4a3cbb2906f4f0a8f20024cec0a110ac3985d76337bc544c2b7948731040504"}}