{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PGHFHBIIDW2PZDWQOBEHWXD6SM","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":"899c69c5cc7619d57a20b1fbb2765dca570a3f4957282ca9342a8f6a0e848ccb","cross_cats_sorted":["cs.AI","cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-07-17T19:11:00Z","title_canon_sha256":"8531d4c54e57b14b817ef006e937cbf62394ea086bfc84dd64468fe2e6e67422"},"schema_version":"1.0","source":{"id":"2507.13499","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.13499","created_at":"2026-07-05T11:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"2507.13499v1","created_at":"2026-07-05T11:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.13499","created_at":"2026-07-05T11:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"PGHFHBIIDW2P","created_at":"2026-07-05T11:39:18Z"},{"alias_kind":"pith_short_16","alias_value":"PGHFHBIIDW2PZDWQ","created_at":"2026-07-05T11:39:18Z"},{"alias_kind":"pith_short_8","alias_value":"PGHFHBII","created_at":"2026-07-05T11:39:18Z"}],"graph_snapshots":[{"event_id":"sha256:b6e8f708db263cdb1ff7269a984cc4293c2a8116ebdd9b26fe23c685d825c3ac","target":"graph","created_at":"2026-07-05T11:39:18Z","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/2507.13499/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Aim. There are 10s of thousands of code review comments each week at Meta. We developed Metamate for Code Review (MetaMateCR) that provides AI-assisted fixes for reviewer comments in production at scale.\n  Method. We developed an internal benchmark of 64k <review comment, patch> data points to fine-tune Llama models. Once our models achieve reasonable offline results, we roll them into production. To ensure that our AI-assisted fixes do not negatively impact the time it takes to do code reviews, we conduct randomized controlled safety trials as well as full production experiments.\n  Offline Re","authors_text":"Brian Zhou, Chandra Maddila, James Saindon, Jingyue Shen, Nachiappan Nagappan, Negar Ghorbani, Parth Thakkar, Peter C. Rigby, Rui Abreu, Vijayaraghavan Murali","cross_cats":["cs.AI","cs.PL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-07-17T19:11:00Z","title":"AI-Assisted Fixes to Code Review Comments at Scale"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.13499","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":"sha256:1e1822d065af594d4487ea7287b28c674a2ac88a87552a82b8058d5941b9ea0a","target":"record","created_at":"2026-07-05T11:39:18Z","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":"899c69c5cc7619d57a20b1fbb2765dca570a3f4957282ca9342a8f6a0e848ccb","cross_cats_sorted":["cs.AI","cs.PL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-07-17T19:11:00Z","title_canon_sha256":"8531d4c54e57b14b817ef006e937cbf62394ea086bfc84dd64468fe2e6e67422"},"schema_version":"1.0","source":{"id":"2507.13499","kind":"arxiv","version":1}},"canonical_sha256":"798e5385081db4fc8ed070487b5c7e930ee8b604dbd610590e9137e61bff4b22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"798e5385081db4fc8ed070487b5c7e930ee8b604dbd610590e9137e61bff4b22","first_computed_at":"2026-07-05T11:39:18.372563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:39:18.372563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ka5BNWCKnydM4erx25RFqS1uhIXUbn8cZELuHKrHHH5WyfoTPoy/PRCNZEa8nq5LK1Fo8MB0qjDoGRBdbkcAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:39:18.373044Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.13499","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e1822d065af594d4487ea7287b28c674a2ac88a87552a82b8058d5941b9ea0a","sha256:b6e8f708db263cdb1ff7269a984cc4293c2a8116ebdd9b26fe23c685d825c3ac"],"state_sha256":"28682771f94a065600a74787211a7ec49d43176597f0c7f57d136d78c7f531b4"}