{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QYQ3VJIX3AT5FQA44LQQIBKDGE","short_pith_number":"pith:QYQ3VJIX","canonical_record":{"source":{"id":"2607.21656","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2026-07-22T20:39:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"bc6b70aefad0d3c3c99a94028c4b81b6a125969509148e8d6425929594dd351e","abstract_canon_sha256":"09d49c657fa6536a51b6338743ac0c956d18288f7564f5f205fbf9d52360506c"},"schema_version":"1.0"},"canonical_sha256":"8621baa517d827d2c01ce2e1040543310c15d7f188bade16ec5e42c1e7ebc3ad","source":{"kind":"arxiv","id":"2607.21656","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.21656","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"arxiv_version","alias_value":"2607.21656v1","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.21656","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_12","alias_value":"QYQ3VJIX3AT5","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_16","alias_value":"QYQ3VJIX3AT5FQA4","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_8","alias_value":"QYQ3VJIX","created_at":"2026-07-27T00:20:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QYQ3VJIX3AT5FQA44LQQIBKDGE","target":"record","payload":{"canonical_record":{"source":{"id":"2607.21656","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2026-07-22T20:39:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"bc6b70aefad0d3c3c99a94028c4b81b6a125969509148e8d6425929594dd351e","abstract_canon_sha256":"09d49c657fa6536a51b6338743ac0c956d18288f7564f5f205fbf9d52360506c"},"schema_version":"1.0"},"canonical_sha256":"8621baa517d827d2c01ce2e1040543310c15d7f188bade16ec5e42c1e7ebc3ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-27T00:20:13.488928Z","signature_b64":"F8cAWOy45A6/1bLvsKp/DHzbOLgJGbpgGGC1pt251/zsB9l78oiP/dGyZ09lF3CqaszJX+Jh1sn3RzWDRnVtDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8621baa517d827d2c01ce2e1040543310c15d7f188bade16ec5e42c1e7ebc3ad","last_reissued_at":"2026-07-27T00:20:13.488046Z","signature_status":"signed_v1","first_computed_at":"2026-07-27T00:20:13.488046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.21656","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-27T00:20:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JXzfcP9qcrhkkskwb8HADNREPfxRaeQvUTnE/RtKXbBnOgGxeKMFELksuteGLSBcEOYvIVtKY+DFAjO30NOsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T07:50:34.103680Z"},"content_sha256":"52a949679da1b017c3d0f08b3834bc09bcefcb3ae43ee96e14a195fcb8f4bd35","schema_version":"1.0","event_id":"sha256:52a949679da1b017c3d0f08b3834bc09bcefcb3ae43ee96e14a195fcb8f4bd35"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QYQ3VJIX3AT5FQA44LQQIBKDGE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cross-Model LLM Code Review: Should you use Claude to review Codex or vice versa?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.SE","authors_text":"Hailu Xu, Yike Zhang, Yueming Zhang, Zuodong Xiang","submitted_at":"2026-07-22T20:39:48Z","abstract_excerpt":"Developers increasingly use two coding agents together: one writes a draft, and the other reviews it. However, it is not clear whether the pairing is worth its cost and time, or whether the order of the pairing matters. We run a controlled experiment on 116 recent hard and medium lcb tasks with Claude and Codex across six conditions to approximate a software practitioner's workflow: both solo baselines, both cross-model orderings, and both same-model orderings. The reviewer sees the problem and the writer's draft but cannot execute tests, which approximates a code review step. Claude review ra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.21656","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.21656/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-27T00:20:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+WUCYMBzpy1mO+sDYRYoIexiVRAjYnvU9lN6AMCQJz09FzMJO15roVqZNGiZVKFlQtICpDckTi0xvOjJlcQWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T07:50:34.104306Z"},"content_sha256":"69d6a529ba52e5b8bc0a3af130bf26b43887e77711ff472cd08120734633fd34","schema_version":"1.0","event_id":"sha256:69d6a529ba52e5b8bc0a3af130bf26b43887e77711ff472cd08120734633fd34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/bundle.json","state_url":"https://pith.science/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-03T07:50:34Z","links":{"resolver":"https://pith.science/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE","bundle":"https://pith.science/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/bundle.json","state":"https://pith.science/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYQ3VJIX3AT5FQA44LQQIBKDGE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QYQ3VJIX3AT5FQA44LQQIBKDGE","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":"09d49c657fa6536a51b6338743ac0c956d18288f7564f5f205fbf9d52360506c","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2026-07-22T20:39:48Z","title_canon_sha256":"bc6b70aefad0d3c3c99a94028c4b81b6a125969509148e8d6425929594dd351e"},"schema_version":"1.0","source":{"id":"2607.21656","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.21656","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"arxiv_version","alias_value":"2607.21656v1","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.21656","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_12","alias_value":"QYQ3VJIX3AT5","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_16","alias_value":"QYQ3VJIX3AT5FQA4","created_at":"2026-07-27T00:20:13Z"},{"alias_kind":"pith_short_8","alias_value":"QYQ3VJIX","created_at":"2026-07-27T00:20:13Z"}],"graph_snapshots":[{"event_id":"sha256:69d6a529ba52e5b8bc0a3af130bf26b43887e77711ff472cd08120734633fd34","target":"graph","created_at":"2026-07-27T00:20:13Z","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/2607.21656/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Developers increasingly use two coding agents together: one writes a draft, and the other reviews it. However, it is not clear whether the pairing is worth its cost and time, or whether the order of the pairing matters. We run a controlled experiment on 116 recent hard and medium lcb tasks with Claude and Codex across six conditions to approximate a software practitioner's workflow: both solo baselines, both cross-model orderings, and both same-model orderings. The reviewer sees the problem and the writer's draft but cannot execute tests, which approximates a code review step. Claude review ra","authors_text":"Hailu Xu, Yike Zhang, Yueming Zhang, Zuodong Xiang","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2026-07-22T20:39:48Z","title":"Cross-Model LLM Code Review: Should you use Claude to review Codex or vice versa?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.21656","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":"sha256:52a949679da1b017c3d0f08b3834bc09bcefcb3ae43ee96e14a195fcb8f4bd35","target":"record","created_at":"2026-07-27T00:20:13Z","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":"09d49c657fa6536a51b6338743ac0c956d18288f7564f5f205fbf9d52360506c","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2026-07-22T20:39:48Z","title_canon_sha256":"bc6b70aefad0d3c3c99a94028c4b81b6a125969509148e8d6425929594dd351e"},"schema_version":"1.0","source":{"id":"2607.21656","kind":"arxiv","version":1}},"canonical_sha256":"8621baa517d827d2c01ce2e1040543310c15d7f188bade16ec5e42c1e7ebc3ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8621baa517d827d2c01ce2e1040543310c15d7f188bade16ec5e42c1e7ebc3ad","first_computed_at":"2026-07-27T00:20:13.488046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-27T00:20:13.488046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F8cAWOy45A6/1bLvsKp/DHzbOLgJGbpgGGC1pt251/zsB9l78oiP/dGyZ09lF3CqaszJX+Jh1sn3RzWDRnVtDg==","signature_status":"signed_v1","signed_at":"2026-07-27T00:20:13.488928Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.21656","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:52a949679da1b017c3d0f08b3834bc09bcefcb3ae43ee96e14a195fcb8f4bd35","sha256:69d6a529ba52e5b8bc0a3af130bf26b43887e77711ff472cd08120734633fd34"],"state_sha256":"4b32f36d5e9f04a581ebe10ea040d58edcd6f4dd800ee0075c7978f3430a37a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mcmPs2vS0+OELXTK2a4KlS70e3VdsXKpQ6y7G/VtbxY/nohLRsnjZlW1ctK4gJGCNs1knOTG2EtTvByUbKRABA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T07:50:34.109648Z","bundle_sha256":"d189d365285e8b94c8e44245601d5f4932ea9b65cd3f83f7129c444f7d2fd7ac"}}