{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UWC62RSAVUUOFMK3YDIN65TVIA","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":"4bd4e78a9656ed71b5597c9ffcea38bb7cfed1ba36fb08aa2b0dd676db15bb77","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2023-07-27T15:44:02Z","title_canon_sha256":"b96e333372a54fcb3006d7a4e67c2ad701b779640e92c8be330899e962425812"},"schema_version":"1.0","source":{"id":"2307.14950","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.14950","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"arxiv_version","alias_value":"2307.14950v1","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.14950","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_12","alias_value":"UWC62RSAVUUO","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_16","alias_value":"UWC62RSAVUUOFMK3","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_8","alias_value":"UWC62RSA","created_at":"2026-07-05T06:35:20Z"}],"graph_snapshots":[{"event_id":"sha256:e4d0874c971c6c9280e532abce2fb916845abbf8c3d675e538388aebd2024ad7","target":"graph","created_at":"2026-07-05T06:35:20Z","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/2307.14950/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In most lattice field theories, correlators are plagued by a signal-to-noise problem of exponential difficulty in the time separation. We propose a method for improving the signal-to-noise ratio, in which control variates are systematically constructed from lattice Schwinger-Dyson relations. The method is demonstrated on various two-dimensional lattices in scalar field theory, and a strategy for scaling to larger systems is explored.","authors_text":"Jun-Sik Yoo, Scott Lawrence, Tanmoy Bhattacharya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2023-07-27T15:44:02Z","title":"Control variates for lattice field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.14950","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:c37fde26d7361355af23a63d6f9059847cf53ba8979ed6116dc1bede1927191e","target":"record","created_at":"2026-07-05T06:35:20Z","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":"4bd4e78a9656ed71b5597c9ffcea38bb7cfed1ba36fb08aa2b0dd676db15bb77","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2023-07-27T15:44:02Z","title_canon_sha256":"b96e333372a54fcb3006d7a4e67c2ad701b779640e92c8be330899e962425812"},"schema_version":"1.0","source":{"id":"2307.14950","kind":"arxiv","version":1}},"canonical_sha256":"a585ed4640ad28e2b15bc0d0df7675402efbe310b4e0f6706f7b102489ae8d49","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a585ed4640ad28e2b15bc0d0df7675402efbe310b4e0f6706f7b102489ae8d49","first_computed_at":"2026-07-05T06:35:20.328756Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:35:20.328756Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XJoomdLzwbziJRu5UAia8B0m80Wsl10yyPDzvl5ygV2W45jySoDECe4NgG0GYuhNoBfu8Jzu5VCj1pl/oZYKCA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:35:20.329265Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.14950","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c37fde26d7361355af23a63d6f9059847cf53ba8979ed6116dc1bede1927191e","sha256:e4d0874c971c6c9280e532abce2fb916845abbf8c3d675e538388aebd2024ad7"],"state_sha256":"d084e213f11619cf43e09632871c99dd4fbb281924d3c70d2cf5743ae9d1943e"}