{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5MQCWGV5UD27TML62G3J2WBJE3","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":"2f87facfcd23a6ef31745dde50cbc8cbad0c96f2fc3ac933c9ac73a8a3809aec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-08T08:32:18Z","title_canon_sha256":"ca6bbe20c758dd3a8854c2584e875c708d362d0e53f497c7a121098b284165d7"},"schema_version":"1.0","source":{"id":"2607.07744","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.07744","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"arxiv_version","alias_value":"2607.07744v1","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07744","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_12","alias_value":"5MQCWGV5UD27","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_16","alias_value":"5MQCWGV5UD27TML6","created_at":"2026-07-10T00:18:47Z"},{"alias_kind":"pith_short_8","alias_value":"5MQCWGV5","created_at":"2026-07-10T00:18:47Z"}],"graph_snapshots":[{"event_id":"sha256:de613f9c5325231b9fdad6fc8f8c7363c8e544d4ac63fed0ca13942a59e53958","target":"graph","created_at":"2026-07-10T00:18:47Z","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/2607.07744/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Coding-agent benchmarks have largely measured whether agents can produce functionally correct patches, but production software also demands measurable speedups on real execution targets. Performance optimization is a distinct agentic task: agents must profile executions, diagnose cross-layer bottlenecks, edit code without breaking correctness, and verify that gains are reproducible rather than measurement artifacts. We introduce PERFOPT-Bench, a benchmark for evaluating this full performance-engineering loop. Each task provides a correct but deliberately suboptimal codebase and asks the agent ","authors_text":"Bo Liu, Jiawei Ma, Liangliang Cao, Piaohong Wang, Yingyun Cui, Yi Xie","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-08T08:32:18Z","title":"PERFOPT-Bench: Evaluating Coding Agents on Software Performance Optimization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07744","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:c4a6f561925ff4b1cc18a6468ee68baa0b13b78b1842d318fe4629516ca5af2d","target":"record","created_at":"2026-07-10T00:18:47Z","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":"2f87facfcd23a6ef31745dde50cbc8cbad0c96f2fc3ac933c9ac73a8a3809aec","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2026-07-08T08:32:18Z","title_canon_sha256":"ca6bbe20c758dd3a8854c2584e875c708d362d0e53f497c7a121098b284165d7"},"schema_version":"1.0","source":{"id":"2607.07744","kind":"arxiv","version":1}},"canonical_sha256":"eb202b1abda0f5f9b17ed1b69d582926d796212fea93c56d899fe4f162b7fc98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb202b1abda0f5f9b17ed1b69d582926d796212fea93c56d899fe4f162b7fc98","first_computed_at":"2026-07-10T00:18:47.687220Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-10T00:18:47.687220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O8bbtPk9fOvNUgz2t+2Amm5J9TpVFGX+RDOyfhZia1Ja+VmZDEgHE2TtAJVPSZbb9XtdDRudHVH+oxZ5IuZICQ==","signature_status":"signed_v1","signed_at":"2026-07-10T00:18:47.687640Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.07744","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4a6f561925ff4b1cc18a6468ee68baa0b13b78b1842d318fe4629516ca5af2d","sha256:de613f9c5325231b9fdad6fc8f8c7363c8e544d4ac63fed0ca13942a59e53958"],"state_sha256":"28364d78ce5d7e3bf04fdfac472011177143e0da2248b484aa1e73ddd28cbac2"}