{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QIF6GVWFKG4ZU344K5KPCDPUWZ","short_pith_number":"pith:QIF6GVWF","canonical_record":{"source":{"id":"2607.14387","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-15T22:02:03Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"65645d93cf22d1d291b73ac0b8ef41a9b759d2b81cb762e8066f07c48aa734b3","abstract_canon_sha256":"ef9154a4bca355af8604c74e4ef02b9551bb79474a1b0c283ddec08ea59b84c3"},"schema_version":"1.0"},"canonical_sha256":"820be356c551b99a6f9c5754f10df4b64caaecf45f0d0dd0914c7e1028086117","source":{"kind":"arxiv","id":"2607.14387","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14387","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14387v1","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14387","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"QIF6GVWFKG4Z","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_16","alias_value":"QIF6GVWFKG4ZU344","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_8","alias_value":"QIF6GVWF","created_at":"2026-07-17T00:21:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QIF6GVWFKG4ZU344K5KPCDPUWZ","target":"record","payload":{"canonical_record":{"source":{"id":"2607.14387","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-15T22:02:03Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"65645d93cf22d1d291b73ac0b8ef41a9b759d2b81cb762e8066f07c48aa734b3","abstract_canon_sha256":"ef9154a4bca355af8604c74e4ef02b9551bb79474a1b0c283ddec08ea59b84c3"},"schema_version":"1.0"},"canonical_sha256":"820be356c551b99a6f9c5754f10df4b64caaecf45f0d0dd0914c7e1028086117","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-17T00:21:10.126917Z","signature_b64":"BRjJNMVcboBDW/d4Vwzo72ioMbCofeLybWjU33KMb+dpENH9T8oM7Mt0Djy4HXOqSpwyGqGyBMAubXQMDpyOAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"820be356c551b99a6f9c5754f10df4b64caaecf45f0d0dd0914c7e1028086117","last_reissued_at":"2026-07-17T00:21:10.126074Z","signature_status":"signed_v1","first_computed_at":"2026-07-17T00:21:10.126074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.14387","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":"2026-07-17T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4fktLaY77P2Ah4SyB1RjplBshiar1UaWBOgqhBnb2+HxasATTsefIbYhFz9X0iAC0lNZUqzT8loKEyJlLzOsCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:37:48.367847Z"},"content_sha256":"d2a261e6030aa29d49571265092087cf33564c2138377ef0e8ca35ca78216bc8","schema_version":"1.0","event_id":"sha256:d2a261e6030aa29d49571265092087cf33564c2138377ef0e8ca35ca78216bc8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QIF6GVWFKG4ZU344K5KPCDPUWZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chat2Scenic: An Iterative RAG-Based Framework for Scenario Generation in Autonomous Driving","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.RO"],"primary_cat":"cs.AI","authors_text":"Haoyu Wang, Johannes Betz, Mattia Piccinini, Qunying Song, Wenting Miao, Yuan Gao","submitted_at":"2026-07-15T22:02:03Z","abstract_excerpt":"Validating autonomous driving systems requires diverse, regulation-compliant test scenarios. In simulation-based testing, scenarios are defined as executable scripts. Yet automatically generating such scripts from regulatory descriptions remains an open challenge, and existing approaches face fundamental trade-offs. Retrieval-assemble methods achieve reasonable compilation rates but lack scalability, whereas retrieval-based full-script generation suffers from low compilation success rates. We present Chat2Scenic, the first iterative retrieval-augmented framework to generate scenario scripts in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14387","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/2607.14387/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":"2026-07-17T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OVX5fcQSg15adCqsYGqQTlM99FROM0snJHF7Q6aAePCjrdx2Oar3jJ8jafJtH2ndGD1QOxQXkKugS1vreX4uCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T08:37:48.368359Z"},"content_sha256":"56bae65f1e19136d60df63a97958a1c5b2e9c6fc08a7684326297f38151234d3","schema_version":"1.0","event_id":"sha256:56bae65f1e19136d60df63a97958a1c5b2e9c6fc08a7684326297f38151234d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/bundle.json","state_url":"https://pith.science/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/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":"2026-08-04T08:37:48Z","links":{"resolver":"https://pith.science/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ","bundle":"https://pith.science/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/bundle.json","state":"https://pith.science/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QIF6GVWFKG4ZU344K5KPCDPUWZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QIF6GVWFKG4ZU344K5KPCDPUWZ","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":"ef9154a4bca355af8604c74e4ef02b9551bb79474a1b0c283ddec08ea59b84c3","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-15T22:02:03Z","title_canon_sha256":"65645d93cf22d1d291b73ac0b8ef41a9b759d2b81cb762e8066f07c48aa734b3"},"schema_version":"1.0","source":{"id":"2607.14387","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.14387","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"2607.14387v1","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.14387","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"QIF6GVWFKG4Z","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_16","alias_value":"QIF6GVWFKG4ZU344","created_at":"2026-07-17T00:21:10Z"},{"alias_kind":"pith_short_8","alias_value":"QIF6GVWF","created_at":"2026-07-17T00:21:10Z"}],"graph_snapshots":[{"event_id":"sha256:56bae65f1e19136d60df63a97958a1c5b2e9c6fc08a7684326297f38151234d3","target":"graph","created_at":"2026-07-17T00:21:10Z","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/2607.14387/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Validating autonomous driving systems requires diverse, regulation-compliant test scenarios. In simulation-based testing, scenarios are defined as executable scripts. Yet automatically generating such scripts from regulatory descriptions remains an open challenge, and existing approaches face fundamental trade-offs. Retrieval-assemble methods achieve reasonable compilation rates but lack scalability, whereas retrieval-based full-script generation suffers from low compilation success rates. We present Chat2Scenic, the first iterative retrieval-augmented framework to generate scenario scripts in","authors_text":"Haoyu Wang, Johannes Betz, Mattia Piccinini, Qunying Song, Wenting Miao, Yuan Gao","cross_cats":["cs.RO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-15T22:02:03Z","title":"Chat2Scenic: An Iterative RAG-Based Framework for Scenario Generation in Autonomous Driving"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.14387","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:d2a261e6030aa29d49571265092087cf33564c2138377ef0e8ca35ca78216bc8","target":"record","created_at":"2026-07-17T00:21:10Z","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":"ef9154a4bca355af8604c74e4ef02b9551bb79474a1b0c283ddec08ea59b84c3","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-15T22:02:03Z","title_canon_sha256":"65645d93cf22d1d291b73ac0b8ef41a9b759d2b81cb762e8066f07c48aa734b3"},"schema_version":"1.0","source":{"id":"2607.14387","kind":"arxiv","version":1}},"canonical_sha256":"820be356c551b99a6f9c5754f10df4b64caaecf45f0d0dd0914c7e1028086117","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"820be356c551b99a6f9c5754f10df4b64caaecf45f0d0dd0914c7e1028086117","first_computed_at":"2026-07-17T00:21:10.126074Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-17T00:21:10.126074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BRjJNMVcboBDW/d4Vwzo72ioMbCofeLybWjU33KMb+dpENH9T8oM7Mt0Djy4HXOqSpwyGqGyBMAubXQMDpyOAA==","signature_status":"signed_v1","signed_at":"2026-07-17T00:21:10.126917Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.14387","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2a261e6030aa29d49571265092087cf33564c2138377ef0e8ca35ca78216bc8","sha256:56bae65f1e19136d60df63a97958a1c5b2e9c6fc08a7684326297f38151234d3"],"state_sha256":"3b98d49fabe8d2cd8c06565db72c0544c969cb8fe021c8908527a81f229a3736"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+4IVRaimBcxm0yqiTLd5XMpFQZGcvoUqTlgm6oYk7u5V8LnGN9a4rwPkjSYzCFYgTA+QuI9mT1xPtHPNdoqCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T08:37:48.372885Z","bundle_sha256":"0ecb77fe4e3726041fba4bc9a8c0d170a80dc0f161c52081c7fc18a7d00b5595"}}