{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OXSBKGYFN7KOMGDCYBM2MPQVXW","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":"6edce71b1e4f1d5415768b54cd059cda7c455ec0af17011a3fa4b9bdea65d600","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-01T08:47:15Z","title_canon_sha256":"4312d47eba57d237f5cbbe3efc50d0f600fe8642f4790c665f51f05c4820cddf"},"schema_version":"1.0","source":{"id":"2403.00363","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.00363","created_at":"2026-07-05T07:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"2403.00363v1","created_at":"2026-07-05T07:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.00363","created_at":"2026-07-05T07:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"OXSBKGYFN7KO","created_at":"2026-07-05T07:51:03Z"},{"alias_kind":"pith_short_16","alias_value":"OXSBKGYFN7KOMGDC","created_at":"2026-07-05T07:51:03Z"},{"alias_kind":"pith_short_8","alias_value":"OXSBKGYF","created_at":"2026-07-05T07:51:03Z"}],"graph_snapshots":[{"event_id":"sha256:e615697071f1ce97ea2a9cb4488f52336c436170450047c127a5cb517711154f","target":"graph","created_at":"2026-07-05T07:51:03Z","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/2403.00363/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The variational quantum eigensolver (VQE) is a promising candidate that brings practical benefits from quantum computing. However, the required bandwidth in/out of a cryostat is a limiting factor to scale cryogenic quantum computers. We propose a tailored counter-based module with single flux quantum circuits in 4-K stage which precomputes a part of VQE calculation and reduces the amount of inter-temperature communication. The evaluation shows that our system reduces the required bandwidth by 97%, and with this drastic reduction, total power consumption is reduced by 93% in the case where 277 ","authors_text":"Hiroshi Nakamura, Koji Inoue, Masamitsu Tanaka, Satoshi Imamura, Teruo Tanimoto, Yosuke Ueno, Yuna Tomida, Yutaka Tabuchi","cross_cats":["cs.AR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-01T08:47:15Z","title":"SFQ counter-based precomputation for large-scale cryogenic VQE machines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.00363","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:b5dddfdfee264adc0cf9f95bb835d9914de8b72f8d556a5dd5a078096a4fc864","target":"record","created_at":"2026-07-05T07:51:03Z","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":"6edce71b1e4f1d5415768b54cd059cda7c455ec0af17011a3fa4b9bdea65d600","cross_cats_sorted":["cs.AR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-01T08:47:15Z","title_canon_sha256":"4312d47eba57d237f5cbbe3efc50d0f600fe8642f4790c665f51f05c4820cddf"},"schema_version":"1.0","source":{"id":"2403.00363","kind":"arxiv","version":1}},"canonical_sha256":"75e4151b056fd4e61862c059a63e15bdb1e7f63e1d2c06b30b35f5011a23f992","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75e4151b056fd4e61862c059a63e15bdb1e7f63e1d2c06b30b35f5011a23f992","first_computed_at":"2026-07-05T07:51:03.148475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:51:03.148475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJNzj3kOffrksAQmp/V95qBmkDc0spZng1BYK0kwGn7myw9VfkkNoWmGEOqWlD6wAGo/tCFeydJLcOw/8fj5Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:51:03.148884Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.00363","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5dddfdfee264adc0cf9f95bb835d9914de8b72f8d556a5dd5a078096a4fc864","sha256:e615697071f1ce97ea2a9cb4488f52336c436170450047c127a5cb517711154f"],"state_sha256":"025aa85248d9e0d3657869dd7c909ce54e01d36bebc9e9a532787da0de0dd046"}