{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WQ2DVVJRBWKWSTV32YFWJECQSU","short_pith_number":"pith:WQ2DVVJR","canonical_record":{"source":{"id":"2504.21854","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-30T17:59:53Z","cross_cats_sorted":[],"title_canon_sha256":"85d6dd162c39198d353af033ff402f60cc7c1d46f8832029663eaf33e8fefcaa","abstract_canon_sha256":"378d3d51f4ad80c6c8cc19c63be5c59a680bb123b8864de78b745a098acb2e40"},"schema_version":"1.0"},"canonical_sha256":"b4343ad5310d95694ebbd60b6490509521122223134d6b7a24464a9f9a9a09a4","source":{"kind":"arxiv","id":"2504.21854","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.21854","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"arxiv_version","alias_value":"2504.21854v2","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.21854","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_12","alias_value":"WQ2DVVJRBWKW","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_16","alias_value":"WQ2DVVJRBWKWSTV3","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_8","alias_value":"WQ2DVVJR","created_at":"2026-07-05T10:56:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WQ2DVVJRBWKWSTV32YFWJECQSU","target":"record","payload":{"canonical_record":{"source":{"id":"2504.21854","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-30T17:59:53Z","cross_cats_sorted":[],"title_canon_sha256":"85d6dd162c39198d353af033ff402f60cc7c1d46f8832029663eaf33e8fefcaa","abstract_canon_sha256":"378d3d51f4ad80c6c8cc19c63be5c59a680bb123b8864de78b745a098acb2e40"},"schema_version":"1.0"},"canonical_sha256":"b4343ad5310d95694ebbd60b6490509521122223134d6b7a24464a9f9a9a09a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:56:40.171021Z","signature_b64":"HCsgEp1cEoci1aKTWYicdRfH/5WSTjj5FlMyy32+XuOrUAxtNYoV1CGy6MyfqlfVgdTHsEwQBn5hZNFHvKBUBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4343ad5310d95694ebbd60b6490509521122223134d6b7a24464a9f9a9a09a4","last_reissued_at":"2026-07-05T10:56:40.170521Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:56:40.170521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.21854","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":"2026-07-05T10:56:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VHonaEg6zokRgQx3DBHdkrGQKa0z0CMgX2lB19iRIgsq3J1FpUNgY9AyA0dWVuM0gHHkDMpPv+UyFzE/PFWqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:15:24.177680Z"},"content_sha256":"04f8952c626076dd1dbce815bc62c82d2c95a9db2058d72b78ecd46c7fad8024","schema_version":"1.0","event_id":"sha256:04f8952c626076dd1dbce815bc62c82d2c95a9db2058d72b78ecd46c7fad8024"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WQ2DVVJRBWKWSTV32YFWJECQSU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SPARO: Surface-code Pauli-based Architectural Resource Optimization for Fault-tolerant Quantum Computing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ang Li, Chenxu Liu, Meng Wang, Samuel Stein, Shuwen Kan, Ying Mao, Yufei Ding, Zefan Du","submitted_at":"2025-04-30T17:59:53Z","abstract_excerpt":"Surface codes represent a leading approach for quantum error correction (QEC), offering a path towards universal fault-tolerant quantum computing (FTQC). However, efficiently implementing algorithms, particularly using Pauli-based computation (PBC) with lattice surgery, necessitates careful resource optimization. Prior work often employs static layouts and simplified error models. These typically fail to capture the full costs and dynamic nature of active computation, leading to resource bottlenecks and suboptimal architectural designs. To address this, we introduce SPARO. SPARO features a com"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.21854","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.21854/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":"2026-07-05T10:56:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ltAjQ2m+oW/Kc8o0AN0ZleH5f6Wgmph9TzRFrIAS/IKm7buqikT2zcfVtxTiJ3s932gRDjoKgLf/GKG/DXU1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:15:24.178198Z"},"content_sha256":"edee9ebf6a623c5366e25ece08f9cc84eae216662eb251504ce4fb0bbb36585f","schema_version":"1.0","event_id":"sha256:edee9ebf6a623c5366e25ece08f9cc84eae216662eb251504ce4fb0bbb36585f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/bundle.json","state_url":"https://pith.science/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/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":"2026-08-10T17:15:24Z","links":{"resolver":"https://pith.science/pith/WQ2DVVJRBWKWSTV32YFWJECQSU","bundle":"https://pith.science/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/bundle.json","state":"https://pith.science/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WQ2DVVJRBWKWSTV32YFWJECQSU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WQ2DVVJRBWKWSTV32YFWJECQSU","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":"378d3d51f4ad80c6c8cc19c63be5c59a680bb123b8864de78b745a098acb2e40","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-30T17:59:53Z","title_canon_sha256":"85d6dd162c39198d353af033ff402f60cc7c1d46f8832029663eaf33e8fefcaa"},"schema_version":"1.0","source":{"id":"2504.21854","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.21854","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"arxiv_version","alias_value":"2504.21854v2","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.21854","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_12","alias_value":"WQ2DVVJRBWKW","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_16","alias_value":"WQ2DVVJRBWKWSTV3","created_at":"2026-07-05T10:56:40Z"},{"alias_kind":"pith_short_8","alias_value":"WQ2DVVJR","created_at":"2026-07-05T10:56:40Z"}],"graph_snapshots":[{"event_id":"sha256:edee9ebf6a623c5366e25ece08f9cc84eae216662eb251504ce4fb0bbb36585f","target":"graph","created_at":"2026-07-05T10:56:40Z","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/2504.21854/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Surface codes represent a leading approach for quantum error correction (QEC), offering a path towards universal fault-tolerant quantum computing (FTQC). However, efficiently implementing algorithms, particularly using Pauli-based computation (PBC) with lattice surgery, necessitates careful resource optimization. Prior work often employs static layouts and simplified error models. These typically fail to capture the full costs and dynamic nature of active computation, leading to resource bottlenecks and suboptimal architectural designs. To address this, we introduce SPARO. SPARO features a com","authors_text":"Ang Li, Chenxu Liu, Meng Wang, Samuel Stein, Shuwen Kan, Ying Mao, Yufei Ding, Zefan Du","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-30T17:59:53Z","title":"SPARO: Surface-code Pauli-based Architectural Resource Optimization for Fault-tolerant Quantum Computing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.21854","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":"sha256:04f8952c626076dd1dbce815bc62c82d2c95a9db2058d72b78ecd46c7fad8024","target":"record","created_at":"2026-07-05T10:56:40Z","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":"378d3d51f4ad80c6c8cc19c63be5c59a680bb123b8864de78b745a098acb2e40","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-04-30T17:59:53Z","title_canon_sha256":"85d6dd162c39198d353af033ff402f60cc7c1d46f8832029663eaf33e8fefcaa"},"schema_version":"1.0","source":{"id":"2504.21854","kind":"arxiv","version":2}},"canonical_sha256":"b4343ad5310d95694ebbd60b6490509521122223134d6b7a24464a9f9a9a09a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4343ad5310d95694ebbd60b6490509521122223134d6b7a24464a9f9a9a09a4","first_computed_at":"2026-07-05T10:56:40.170521Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:56:40.170521Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HCsgEp1cEoci1aKTWYicdRfH/5WSTjj5FlMyy32+XuOrUAxtNYoV1CGy6MyfqlfVgdTHsEwQBn5hZNFHvKBUBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:56:40.171021Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.21854","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:04f8952c626076dd1dbce815bc62c82d2c95a9db2058d72b78ecd46c7fad8024","sha256:edee9ebf6a623c5366e25ece08f9cc84eae216662eb251504ce4fb0bbb36585f"],"state_sha256":"872e537f38924a8c69fafbb5f3a5f6fd41d9c8fb0c133bfbf79906403cd1359d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UYJih4HTbrF2zNsRL+AxW1kS0z8is0Qr2zhDrmp+Cvf+9jhLQnPt2DWDUBiO2XBOkVlLTtWVVlnOeKrBf5jlAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T17:15:24.182127Z","bundle_sha256":"a5e565dac9e30dfa9194ea257abae4ec3fba459e536566e9108213b05fb59ab4"}}