{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:OLXZY4UHNXPWVB2ECMPSQURCLN","short_pith_number":"pith:OLXZY4UH","canonical_record":{"source":{"id":"2607.20489","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T14:21:19Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"d174c816be4afca4dcebe4c48c1ffdbaec4b1c01e070e392df62038d2314d943","abstract_canon_sha256":"a298680336812e414ef77f30f117ce42e81a1ad66e9d671a65dd812c865a7b62"},"schema_version":"1.0"},"canonical_sha256":"72ef9c72876ddf6a8744131f2852225b56dc4c9809841fa0c7c9003a879c2662","source":{"kind":"arxiv","id":"2607.20489","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20489","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20489v1","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20489","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_12","alias_value":"OLXZY4UHNXPW","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_16","alias_value":"OLXZY4UHNXPWVB2E","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_8","alias_value":"OLXZY4UH","created_at":"2026-07-24T00:23:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:OLXZY4UHNXPWVB2ECMPSQURCLN","target":"record","payload":{"canonical_record":{"source":{"id":"2607.20489","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T14:21:19Z","cross_cats_sorted":["cs.DB"],"title_canon_sha256":"d174c816be4afca4dcebe4c48c1ffdbaec4b1c01e070e392df62038d2314d943","abstract_canon_sha256":"a298680336812e414ef77f30f117ce42e81a1ad66e9d671a65dd812c865a7b62"},"schema_version":"1.0"},"canonical_sha256":"72ef9c72876ddf6a8744131f2852225b56dc4c9809841fa0c7c9003a879c2662","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-24T00:23:18.490368Z","signature_b64":"8VrjRPfL0JplVM0H+F9Mnjyg0Dp8XN8B+acoSEdgq1oWWvpMN+yPzes9GWX83FD7/8ftohudQ/prR2WYkI5hCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72ef9c72876ddf6a8744131f2852225b56dc4c9809841fa0c7c9003a879c2662","last_reissued_at":"2026-07-24T00:23:18.489488Z","signature_status":"signed_v1","first_computed_at":"2026-07-24T00:23:18.489488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.20489","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":"2026-07-24T00:23:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ld862+PNHkMN1x+RFJJy2nhmBTu5XqO6zKGr3JEuGFY4AImp8fkFbPU4s6az2Vmt2dhGqAFB7DYH8dxgYuHbBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:58:32.096716Z"},"content_sha256":"3a206fbd0d741f0c3589ea5b3059f6f88bbfbed91168b6e91ae889892869c7de","schema_version":"1.0","event_id":"sha256:3a206fbd0d741f0c3589ea5b3059f6f88bbfbed91168b6e91ae889892869c7de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:OLXZY4UHNXPWVB2ECMPSQURCLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"EvoSQL: Memory-Augmented Critic-Generator Co-Evolution for Text-to-SQL","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.DB"],"primary_cat":"cs.AI","authors_text":"Chaojian Shi, Chenyu Zhou, Jianwei Wang, Jiawei Zhou, Kai Wang, Ming Dong","submitted_at":"2026-06-04T14:21:19Z","abstract_excerpt":"Text-to-SQL has advanced rapidly with large language models, but complex database queries still require reasoning beyond one-shot generation, including multi-step decomposition, execution-based diagnosis, and targeted correction. We present EvoSQL, a co-evolution framework that formulates SQL synthesis as an iterative interaction between a generator and a critic. EvoSQL maintains a contextualized candidate memory, verifies SQL candidates with both execution signals and LLM-based critique, and updates its memory through utility-guided aggregation. To strengthen the underlying generator-critic p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20489","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/2607.20489/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":"2026-07-24T00:23:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VGoAMOofMFbsnikmTt9WMNJ7DxwOBwIASpRZtXIEpLnBs4UUSqK1EGvm1IusIKcEtqgFJrwWGZZxbgqkuqzGAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T03:58:32.097223Z"},"content_sha256":"3b9324f8ace51121f9b7157668a9f6ddb8adc2bfe3c2905d3168051091ce66be","schema_version":"1.0","event_id":"sha256:3b9324f8ace51121f9b7157668a9f6ddb8adc2bfe3c2905d3168051091ce66be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/bundle.json","state_url":"https://pith.science/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/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":"2026-08-05T03:58:32Z","links":{"resolver":"https://pith.science/pith/OLXZY4UHNXPWVB2ECMPSQURCLN","bundle":"https://pith.science/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/bundle.json","state":"https://pith.science/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OLXZY4UHNXPWVB2ECMPSQURCLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:OLXZY4UHNXPWVB2ECMPSQURCLN","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":"a298680336812e414ef77f30f117ce42e81a1ad66e9d671a65dd812c865a7b62","cross_cats_sorted":["cs.DB"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T14:21:19Z","title_canon_sha256":"d174c816be4afca4dcebe4c48c1ffdbaec4b1c01e070e392df62038d2314d943"},"schema_version":"1.0","source":{"id":"2607.20489","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.20489","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"arxiv_version","alias_value":"2607.20489v1","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.20489","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_12","alias_value":"OLXZY4UHNXPW","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_16","alias_value":"OLXZY4UHNXPWVB2E","created_at":"2026-07-24T00:23:18Z"},{"alias_kind":"pith_short_8","alias_value":"OLXZY4UH","created_at":"2026-07-24T00:23:18Z"}],"graph_snapshots":[{"event_id":"sha256:3b9324f8ace51121f9b7157668a9f6ddb8adc2bfe3c2905d3168051091ce66be","target":"graph","created_at":"2026-07-24T00:23:18Z","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/2607.20489/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Text-to-SQL has advanced rapidly with large language models, but complex database queries still require reasoning beyond one-shot generation, including multi-step decomposition, execution-based diagnosis, and targeted correction. We present EvoSQL, a co-evolution framework that formulates SQL synthesis as an iterative interaction between a generator and a critic. EvoSQL maintains a contextualized candidate memory, verifies SQL candidates with both execution signals and LLM-based critique, and updates its memory through utility-guided aggregation. To strengthen the underlying generator-critic p","authors_text":"Chaojian Shi, Chenyu Zhou, Jianwei Wang, Jiawei Zhou, Kai Wang, Ming Dong","cross_cats":["cs.DB"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T14:21:19Z","title":"EvoSQL: Memory-Augmented Critic-Generator Co-Evolution for Text-to-SQL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.20489","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":"sha256:3a206fbd0d741f0c3589ea5b3059f6f88bbfbed91168b6e91ae889892869c7de","target":"record","created_at":"2026-07-24T00:23:18Z","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":"a298680336812e414ef77f30f117ce42e81a1ad66e9d671a65dd812c865a7b62","cross_cats_sorted":["cs.DB"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-04T14:21:19Z","title_canon_sha256":"d174c816be4afca4dcebe4c48c1ffdbaec4b1c01e070e392df62038d2314d943"},"schema_version":"1.0","source":{"id":"2607.20489","kind":"arxiv","version":1}},"canonical_sha256":"72ef9c72876ddf6a8744131f2852225b56dc4c9809841fa0c7c9003a879c2662","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72ef9c72876ddf6a8744131f2852225b56dc4c9809841fa0c7c9003a879c2662","first_computed_at":"2026-07-24T00:23:18.489488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-24T00:23:18.489488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8VrjRPfL0JplVM0H+F9Mnjyg0Dp8XN8B+acoSEdgq1oWWvpMN+yPzes9GWX83FD7/8ftohudQ/prR2WYkI5hCA==","signature_status":"signed_v1","signed_at":"2026-07-24T00:23:18.490368Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.20489","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a206fbd0d741f0c3589ea5b3059f6f88bbfbed91168b6e91ae889892869c7de","sha256:3b9324f8ace51121f9b7157668a9f6ddb8adc2bfe3c2905d3168051091ce66be"],"state_sha256":"e7ecb14d83024abd6f98926770abd5463df466b2c824ead5a915d8860604f3ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i1zvVZew3Z9TBHuAe3j4VS0bu+GFkpse9uPkcT/s3bDjT1H/fVCv7j6nDRT87xecVydbuk+xr40Q3cuOoG+DCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T03:58:32.102569Z","bundle_sha256":"12c713208e44b0fe15d85762da124af5017cdd4ac95ed11a169215ee5064e27f"}}