{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XJDE6AS472VN5PJO4B2NAU7MEX","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":"2c8b5dc8c2be23d0e1492c7500b1c0b753b809d068b9c8057237f7faf2158cf5","cross_cats_sorted":["cs.AR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-11-26T19:41:18Z","title_canon_sha256":"5a0065fab38f35eefe84b2c064db41f3e105bbcb787398c832a5812d8850d78d"},"schema_version":"1.0","source":{"id":"2111.13729","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.13729","created_at":"2026-07-05T03:35:35Z"},{"alias_kind":"arxiv_version","alias_value":"2111.13729v1","created_at":"2026-07-05T03:35:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.13729","created_at":"2026-07-05T03:35:35Z"},{"alias_kind":"pith_short_12","alias_value":"XJDE6AS472VN","created_at":"2026-07-05T03:35:35Z"},{"alias_kind":"pith_short_16","alias_value":"XJDE6AS472VN5PJO","created_at":"2026-07-05T03:35:35Z"},{"alias_kind":"pith_short_8","alias_value":"XJDE6AS4","created_at":"2026-07-05T03:35:35Z"}],"graph_snapshots":[{"event_id":"sha256:99334bdc54900113b5151004dc9b7dcec65f07ecaa92480f3640b67ed30e4fc1","target":"graph","created_at":"2026-07-05T03:35:35Z","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/2111.13729/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we formally describe the three challenges of mapping surface code on superconducting devices, and present a comprehensive synthesis framework to overcome these challenges. The proposed framework consists of three optimizations. First, we adopt a geometrical method to allocate data qubits which ensures the existence of shallow syndrome extraction circuit. The proposed data qubit layout optimization reduces the overhead of syndrome extraction and serves as a good initial point for following optimizations. Second, we only use bridge qubits enclosed by data qubits and reduce the num","authors_text":"Anbang Wu, Gian Giacomo Guerreschi, Gushu Li, Hezi Zhang, Yuan Xie, Yufei Ding","cross_cats":["cs.AR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-11-26T19:41:18Z","title":"Mapping Surface Code to Superconducting Quantum Processors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.13729","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":"sha256:5b1f23d07693cdc63c594340c24e0fc698a132658612e8316009b41222e1aae0","target":"record","created_at":"2026-07-05T03:35:35Z","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":"2c8b5dc8c2be23d0e1492c7500b1c0b753b809d068b9c8057237f7faf2158cf5","cross_cats_sorted":["cs.AR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-11-26T19:41:18Z","title_canon_sha256":"5a0065fab38f35eefe84b2c064db41f3e105bbcb787398c832a5812d8850d78d"},"schema_version":"1.0","source":{"id":"2111.13729","kind":"arxiv","version":1}},"canonical_sha256":"ba464f025cfeaadebd2ee074d053ec25fdb5b4d56650ca5e90c0852b0bf16c05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba464f025cfeaadebd2ee074d053ec25fdb5b4d56650ca5e90c0852b0bf16c05","first_computed_at":"2026-07-05T03:35:35.027384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:35:35.027384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SpgWYLfpjFhnhvzY2kgjlPjE1tQ0c1CS0/QhKYAMvOSCxmZt8pv605cTNwn/Jr0SgjVe2GsLy6nKZ2jdLnjqAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:35:35.027862Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.13729","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b1f23d07693cdc63c594340c24e0fc698a132658612e8316009b41222e1aae0","sha256:99334bdc54900113b5151004dc9b7dcec65f07ecaa92480f3640b67ed30e4fc1"],"state_sha256":"9ff6c6934d4a7504eb7ff0f74c31e0594b08537115b421d1a08d62c5e83461d3"}