{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D3YVQPETFH5XUOMNRVBQWSP6CP","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":"96a6d1b933cef1179c28c8acbee5ffec4c7813293003c631dedb29bd9e161e25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-19T13:43:20Z","title_canon_sha256":"32c02fe1d6caafd5282af8bf9d286f36c3ed03572c4c67f0a52d9a35e2a43b65"},"schema_version":"1.0","source":{"id":"1807.07419","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.07419","created_at":"2026-05-17T23:39:48Z"},{"alias_kind":"arxiv_version","alias_value":"1807.07419v2","created_at":"2026-05-17T23:39:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.07419","created_at":"2026-05-17T23:39:48Z"},{"alias_kind":"pith_short_12","alias_value":"D3YVQPETFH5X","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D3YVQPETFH5XUOMN","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D3YVQPET","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:6aa9b2646be8c9c3018602a367300f6eaafcfb17b5e49139428ea5049966b9d3","target":"graph","created_at":"2026-05-17T23:39:48Z","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 pseudorandomness, also known as unitary designs, comprise a powerful resource for quantum computation and quantum engineering. While it is known in theory that pseudorandom unitary operators can be constructed efficiently, realizing these objects in realistic physical systems can be a challenging task. In this work, we study quantum pseudorandomness generation on a 12-spin nuclear magnetic resonance system. The experimental process is based on the recently proposed design Hamiltonian approach, which has the merit of being significantly more efficient than previous protocols. By applyin","authors_text":"Bei Zeng, David Kribs, Dawei Lu, Hengyan Wang, Jun Li, Raymond Laflamme, Tao Xin, Zhihuang Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-19T13:43:20Z","title":"Experimental Implementation of Efficient Quantum Pseudorandomness on a 12-spin System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.07419","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":"sha256:15a26364fd4bc752b873dc007559ec2fc655a10602f63f48e2f3d90d8376bb07","target":"record","created_at":"2026-05-17T23:39:48Z","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":"96a6d1b933cef1179c28c8acbee5ffec4c7813293003c631dedb29bd9e161e25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-19T13:43:20Z","title_canon_sha256":"32c02fe1d6caafd5282af8bf9d286f36c3ed03572c4c67f0a52d9a35e2a43b65"},"schema_version":"1.0","source":{"id":"1807.07419","kind":"arxiv","version":2}},"canonical_sha256":"1ef1583c9329fb7a398d8d430b49fe13edad361999862bd8063cae260b95277c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ef1583c9329fb7a398d8d430b49fe13edad361999862bd8063cae260b95277c","first_computed_at":"2026-05-17T23:39:48.722134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:48.722134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/6WVvcKMRYGS5CkbJMqfEc+p6MvUsVD5IWFP3r2JspZft5b/sIGdQ1AbaotAeOMrl0g43Nap06cSHN6ppp/IAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:48.722699Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.07419","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15a26364fd4bc752b873dc007559ec2fc655a10602f63f48e2f3d90d8376bb07","sha256:6aa9b2646be8c9c3018602a367300f6eaafcfb17b5e49139428ea5049966b9d3"],"state_sha256":"42d8df8c5d6a6ce52ca550052aa4675144a95e34447dcbbd28f9846d8916a165"}