{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FLB7TK54JF4GASY34REVHEF5LN","short_pith_number":"pith:FLB7TK54","canonical_record":{"source":{"id":"2606.32007","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T17:39:43Z","cross_cats_sorted":[],"title_canon_sha256":"6293764529dba101066bd5d1a03ae3523d3c6460ff52ff36c0473d3fa35bd448","abstract_canon_sha256":"8e4b3d93881ba00912b03fbdf56cc1298d3755ce63bcfa6e12da5cae7e984067"},"schema_version":"1.0"},"canonical_sha256":"2ac3f9abbc4978604b1be4495390bd5b450999a5cb30708d9eab014d398aa30c","source":{"kind":"arxiv","id":"2606.32007","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.32007","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"arxiv_version","alias_value":"2606.32007v1","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.32007","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_12","alias_value":"FLB7TK54JF4G","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_16","alias_value":"FLB7TK54JF4GASY3","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_8","alias_value":"FLB7TK54","created_at":"2026-07-01T01:18:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FLB7TK54JF4GASY34REVHEF5LN","target":"record","payload":{"canonical_record":{"source":{"id":"2606.32007","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T17:39:43Z","cross_cats_sorted":[],"title_canon_sha256":"6293764529dba101066bd5d1a03ae3523d3c6460ff52ff36c0473d3fa35bd448","abstract_canon_sha256":"8e4b3d93881ba00912b03fbdf56cc1298d3755ce63bcfa6e12da5cae7e984067"},"schema_version":"1.0"},"canonical_sha256":"2ac3f9abbc4978604b1be4495390bd5b450999a5cb30708d9eab014d398aa30c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:18:28.898790Z","signature_b64":"XCOLBujWK2g5px2dvoaF7mZyiOqhdotWzUjcnUMdla3RyZstjXbsmXtnTuGIWV9GuFx7QrxdxzJm4sQ9KYJnBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ac3f9abbc4978604b1be4495390bd5b450999a5cb30708d9eab014d398aa30c","last_reissued_at":"2026-07-01T01:18:28.898382Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:18:28.898382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.32007","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":"2026-07-01T01:18:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XmxKi6xWfTFRl5Qba1jc8RWpbXay+9hOHB7RrodJ4MMza6p+e5RxIRFlprk8R7uTBxTujWKUOBzLjYaE5yq2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:21:41.180224Z"},"content_sha256":"c083d489f1faa15e17922c8869705fc5395cd7d7fffddffbc7d9c65cfbbf5f62","schema_version":"1.0","event_id":"sha256:c083d489f1faa15e17922c8869705fc5395cd7d7fffddffbc7d9c65cfbbf5f62"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FLB7TK54JF4GASY34REVHEF5LN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AxDafny: Agentic Verified Code Generation in Dafny","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Austin Letson, Benjamin Breen, Borja Requena Pozo, Leopoldo Sarra","submitted_at":"2026-06-30T17:39:43Z","abstract_excerpt":"We study agentic code generation in Dafny, where a model must generate both executable code and the proof artifacts for verification. We present AxDafny, a verifier-guided repair framework that iteratively generates implementations, invariants, assertions, and termination arguments. We also introduce LiveCodeBench-Pro-Dafny (LCB-Pro-Dafny), a benchmark of 250 competition-style programming problems translated into Dafny with formal specifications and a verifier-based evaluation harness. On LCB-Pro-Dafny, AxDafny substantially improves verification success over baseline GPT-5.5 performance. On D"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.32007","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/2606.32007/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":"2026-07-01T01:18:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"djlFxGKMs8xG/1mb3T5kOAjI82tbmGY/ETqy1ge3BT4Ry4l2aidvMEmIZhNkKTh1PECJCIQo1qRCKZ1b2paFDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T23:21:41.180633Z"},"content_sha256":"85e5417b09e826ef7859d50ae35ea5fb113b1a33ee686ea3d044df9cfc1044ea","schema_version":"1.0","event_id":"sha256:85e5417b09e826ef7859d50ae35ea5fb113b1a33ee686ea3d044df9cfc1044ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FLB7TK54JF4GASY34REVHEF5LN/bundle.json","state_url":"https://pith.science/pith/FLB7TK54JF4GASY34REVHEF5LN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FLB7TK54JF4GASY34REVHEF5LN/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":"2026-07-01T23:21:41Z","links":{"resolver":"https://pith.science/pith/FLB7TK54JF4GASY34REVHEF5LN","bundle":"https://pith.science/pith/FLB7TK54JF4GASY34REVHEF5LN/bundle.json","state":"https://pith.science/pith/FLB7TK54JF4GASY34REVHEF5LN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FLB7TK54JF4GASY34REVHEF5LN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FLB7TK54JF4GASY34REVHEF5LN","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":"8e4b3d93881ba00912b03fbdf56cc1298d3755ce63bcfa6e12da5cae7e984067","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T17:39:43Z","title_canon_sha256":"6293764529dba101066bd5d1a03ae3523d3c6460ff52ff36c0473d3fa35bd448"},"schema_version":"1.0","source":{"id":"2606.32007","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.32007","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"arxiv_version","alias_value":"2606.32007v1","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.32007","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_12","alias_value":"FLB7TK54JF4G","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_16","alias_value":"FLB7TK54JF4GASY3","created_at":"2026-07-01T01:18:28Z"},{"alias_kind":"pith_short_8","alias_value":"FLB7TK54","created_at":"2026-07-01T01:18:28Z"}],"graph_snapshots":[{"event_id":"sha256:85e5417b09e826ef7859d50ae35ea5fb113b1a33ee686ea3d044df9cfc1044ea","target":"graph","created_at":"2026-07-01T01:18:28Z","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/2606.32007/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study agentic code generation in Dafny, where a model must generate both executable code and the proof artifacts for verification. We present AxDafny, a verifier-guided repair framework that iteratively generates implementations, invariants, assertions, and termination arguments. We also introduce LiveCodeBench-Pro-Dafny (LCB-Pro-Dafny), a benchmark of 250 competition-style programming problems translated into Dafny with formal specifications and a verifier-based evaluation harness. On LCB-Pro-Dafny, AxDafny substantially improves verification success over baseline GPT-5.5 performance. On D","authors_text":"Austin Letson, Benjamin Breen, Borja Requena Pozo, Leopoldo Sarra","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T17:39:43Z","title":"AxDafny: Agentic Verified Code Generation in Dafny"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.32007","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:c083d489f1faa15e17922c8869705fc5395cd7d7fffddffbc7d9c65cfbbf5f62","target":"record","created_at":"2026-07-01T01:18:28Z","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":"8e4b3d93881ba00912b03fbdf56cc1298d3755ce63bcfa6e12da5cae7e984067","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T17:39:43Z","title_canon_sha256":"6293764529dba101066bd5d1a03ae3523d3c6460ff52ff36c0473d3fa35bd448"},"schema_version":"1.0","source":{"id":"2606.32007","kind":"arxiv","version":1}},"canonical_sha256":"2ac3f9abbc4978604b1be4495390bd5b450999a5cb30708d9eab014d398aa30c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ac3f9abbc4978604b1be4495390bd5b450999a5cb30708d9eab014d398aa30c","first_computed_at":"2026-07-01T01:18:28.898382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-01T01:18:28.898382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XCOLBujWK2g5px2dvoaF7mZyiOqhdotWzUjcnUMdla3RyZstjXbsmXtnTuGIWV9GuFx7QrxdxzJm4sQ9KYJnBA==","signature_status":"signed_v1","signed_at":"2026-07-01T01:18:28.898790Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.32007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c083d489f1faa15e17922c8869705fc5395cd7d7fffddffbc7d9c65cfbbf5f62","sha256:85e5417b09e826ef7859d50ae35ea5fb113b1a33ee686ea3d044df9cfc1044ea"],"state_sha256":"b7c6618c54bbe722d3571e33cb0520174de67f3a6d92c441a7dd08131ec33c89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GzvcbEWm0wvqrWCP2r0XX5dZ5I1rU+1Q08rIL5y0Cd55H51Ky971V/TGp9MOfylb4eZjAIiij2Y5kgRpvnHlDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T23:21:41.182991Z","bundle_sha256":"90320577572dbcf197961bab7308fdf92ad613395e6f45b7eba3512d78cfa61f"}}