{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:INWM3AFQYWGWIXOM6X4HEKDO7X","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":"e1f43359fa4b2b5602c79c86386b455682b4fe488a04acbd460f7025fc273b57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2009-11-17T00:41:29Z","title_canon_sha256":"c3e84f6236451409ec10b3e6314957750d0790afc4bf8888cf6e3161fb3c6eac"},"schema_version":"1.0","source":{"id":"0911.3191","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3191","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3191v2","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3191","created_at":"2026-05-18T04:34:10Z"},{"alias_kind":"pith_short_12","alias_value":"INWM3AFQYWGW","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"INWM3AFQYWGWIXOM","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"INWM3AFQ","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:ad9281d45b5e1eb84fe7ae0b2b3b0ca615f9aabf6b65a476aa1a4d638b2b125d","target":"graph","created_at":"2026-05-18T04:34:10Z","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":"Modern graphics hardware is designed for highly parallel numerical tasks and promises significant cost and performance benefits for many scientific applications. One such application is lattice quantum chromodyamics (lattice QCD), where the main computational challenge is to efficiently solve the discretized Dirac equation in the presence of an SU(3) gauge field. Using NVIDIA's CUDA platform we have implemented a Wilson-Dirac sparse matrix-vector product that performs at up to 40 Gflops, 135 Gflops and 212 Gflops for double, single and half precision respectively on NVIDIA's GeForce GTX 280 GP","authors_text":"C. Rebbi, K. Barros, M. A. Clark, R. Babich, R. C. Brower","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2009-11-17T00:41:29Z","title":"Solving Lattice QCD systems of equations using mixed precision solvers on GPUs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3191","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":"sha256:18aae15c6f443d258431bf3eb0b0276051197315f1837775adeb4ee44a4e55f2","target":"record","created_at":"2026-05-18T04:34:10Z","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":"e1f43359fa4b2b5602c79c86386b455682b4fe488a04acbd460f7025fc273b57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2009-11-17T00:41:29Z","title_canon_sha256":"c3e84f6236451409ec10b3e6314957750d0790afc4bf8888cf6e3161fb3c6eac"},"schema_version":"1.0","source":{"id":"0911.3191","kind":"arxiv","version":2}},"canonical_sha256":"436ccd80b0c58d645dccf5f872286efde13dd74b20548065889727a994b580b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"436ccd80b0c58d645dccf5f872286efde13dd74b20548065889727a994b580b3","first_computed_at":"2026-05-18T04:34:10.151003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:10.151003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p8AIMoIdnQEeG+ke1q7YvIxMd5rEeju56+9CVWdqEhdNhuHw1U0RrVG3XvcF7Q0LaiRugWbvrXHwNKdwoxHYDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:10.151457Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3191","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18aae15c6f443d258431bf3eb0b0276051197315f1837775adeb4ee44a4e55f2","sha256:ad9281d45b5e1eb84fe7ae0b2b3b0ca615f9aabf6b65a476aa1a4d638b2b125d"],"state_sha256":"f08c0a5ed4e433a752d1d2812de9011811eac4cb8000485162f0d9f9043d4059"}