{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VMF3EYMGBWXLO67VPQ4MDNROYJ","short_pith_number":"pith:VMF3EYMG","canonical_record":{"source":{"id":"2607.13926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-07-15T15:07:02Z","cross_cats_sorted":[],"title_canon_sha256":"739f5ce70ec756b58918ea3ff93aa5b3871ee3b39a94488dcd7652a66f40d9e4","abstract_canon_sha256":"767c2564cae614a3f40ad04037173c870b853f13c5223be3720026615225922e"},"schema_version":"1.0"},"canonical_sha256":"ab0bb261860daeb77bf57c38c1b62ec24955cd05cf3648c8619a1d997035e7b5","source":{"kind":"arxiv","id":"2607.13926","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13926","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13926v1","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13926","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"VMF3EYMGBWXL","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_16","alias_value":"VMF3EYMGBWXLO67V","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_8","alias_value":"VMF3EYMG","created_at":"2026-07-16T01:23:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VMF3EYMGBWXLO67VPQ4MDNROYJ","target":"record","payload":{"canonical_record":{"source":{"id":"2607.13926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-07-15T15:07:02Z","cross_cats_sorted":[],"title_canon_sha256":"739f5ce70ec756b58918ea3ff93aa5b3871ee3b39a94488dcd7652a66f40d9e4","abstract_canon_sha256":"767c2564cae614a3f40ad04037173c870b853f13c5223be3720026615225922e"},"schema_version":"1.0"},"canonical_sha256":"ab0bb261860daeb77bf57c38c1b62ec24955cd05cf3648c8619a1d997035e7b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-16T01:23:14.121018Z","signature_b64":"9ndMEqqBdBVqWWmF4w1KRMJ6IwfGjCAlj+//sUFr/LmuSG3288vM0fj8rzE0EuxsF9Ho4kuKCRDOVYsqH0HiCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab0bb261860daeb77bf57c38c1b62ec24955cd05cf3648c8619a1d997035e7b5","last_reissued_at":"2026-07-16T01:23:14.120134Z","signature_status":"signed_v1","first_computed_at":"2026-07-16T01:23:14.120134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.13926","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":"2026-07-16T01:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UFDN7WEklKlfbjxVbWhfYajolDK/CA9wYsoqktnEbZKbk2JwUZYZtsRVVPIuAG3VFGuOSUQ3InccMISFBfD2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:12:16.378714Z"},"content_sha256":"d954d1035e3409e7dfec61487cfe2741c9ba62935add8b1ea77200d124c882b1","schema_version":"1.0","event_id":"sha256:d954d1035e3409e7dfec61487cfe2741c9ba62935add8b1ea77200d124c882b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VMF3EYMGBWXLO67VPQ4MDNROYJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"S-squared-VLA: Decoupling Semantic and Spatial Streams in Vision-Language-Action Models for Autonomous Driving","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.RO","authors_text":"Chen Wang, Duanfeng Chu, Jianguo Yu, Liping Lu, Renju Feng, Rukang Wang","submitted_at":"2026-07-15T15:07:02Z","abstract_excerpt":"Vision-Language Models (VLMs) have demonstrated remarkable potential for high-level reasoning in autonomous driving, yet they fundamentally struggle to generate precise, low-level control actions. This limitation is rooted in a semantic-physical gap caused by the inherent mismatch between discrete language tokens and continuous trajectory planning. While Vision-Language-Action (VLA) architectures attempt to bridge this gap by unifying perception and control into a single policy, this entanglement creates a new bottleneck. Standard VLAs experience a severe spatial representation collapse, which"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13926","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/2607.13926/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":"2026-07-16T01:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BokxCsjA5lI/n42E/NnBL2iwzAlGKPL2dPw505Z/+ckrNkZK1aF0K+/+sSeX9UkMmbXMZ5mOZno2uiF1koNDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:12:16.379304Z"},"content_sha256":"061133d56537a06b824ac1303edceb5bca6d4b475c5b4c613b5c7f6337352c31","schema_version":"1.0","event_id":"sha256:061133d56537a06b824ac1303edceb5bca6d4b475c5b4c613b5c7f6337352c31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/bundle.json","state_url":"https://pith.science/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/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":"2026-08-05T06:12:16Z","links":{"resolver":"https://pith.science/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ","bundle":"https://pith.science/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/bundle.json","state":"https://pith.science/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VMF3EYMGBWXLO67VPQ4MDNROYJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VMF3EYMGBWXLO67VPQ4MDNROYJ","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":"767c2564cae614a3f40ad04037173c870b853f13c5223be3720026615225922e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-07-15T15:07:02Z","title_canon_sha256":"739f5ce70ec756b58918ea3ff93aa5b3871ee3b39a94488dcd7652a66f40d9e4"},"schema_version":"1.0","source":{"id":"2607.13926","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13926","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13926v1","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13926","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"VMF3EYMGBWXL","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_16","alias_value":"VMF3EYMGBWXLO67V","created_at":"2026-07-16T01:23:14Z"},{"alias_kind":"pith_short_8","alias_value":"VMF3EYMG","created_at":"2026-07-16T01:23:14Z"}],"graph_snapshots":[{"event_id":"sha256:061133d56537a06b824ac1303edceb5bca6d4b475c5b4c613b5c7f6337352c31","target":"graph","created_at":"2026-07-16T01:23:14Z","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/2607.13926/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Vision-Language Models (VLMs) have demonstrated remarkable potential for high-level reasoning in autonomous driving, yet they fundamentally struggle to generate precise, low-level control actions. This limitation is rooted in a semantic-physical gap caused by the inherent mismatch between discrete language tokens and continuous trajectory planning. While Vision-Language-Action (VLA) architectures attempt to bridge this gap by unifying perception and control into a single policy, this entanglement creates a new bottleneck. Standard VLAs experience a severe spatial representation collapse, which","authors_text":"Chen Wang, Duanfeng Chu, Jianguo Yu, Liping Lu, Renju Feng, Rukang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-07-15T15:07:02Z","title":"S-squared-VLA: Decoupling Semantic and Spatial Streams in Vision-Language-Action Models for Autonomous Driving"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13926","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:d954d1035e3409e7dfec61487cfe2741c9ba62935add8b1ea77200d124c882b1","target":"record","created_at":"2026-07-16T01:23:14Z","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":"767c2564cae614a3f40ad04037173c870b853f13c5223be3720026615225922e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2026-07-15T15:07:02Z","title_canon_sha256":"739f5ce70ec756b58918ea3ff93aa5b3871ee3b39a94488dcd7652a66f40d9e4"},"schema_version":"1.0","source":{"id":"2607.13926","kind":"arxiv","version":1}},"canonical_sha256":"ab0bb261860daeb77bf57c38c1b62ec24955cd05cf3648c8619a1d997035e7b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab0bb261860daeb77bf57c38c1b62ec24955cd05cf3648c8619a1d997035e7b5","first_computed_at":"2026-07-16T01:23:14.120134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-16T01:23:14.120134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9ndMEqqBdBVqWWmF4w1KRMJ6IwfGjCAlj+//sUFr/LmuSG3288vM0fj8rzE0EuxsF9Ho4kuKCRDOVYsqH0HiCg==","signature_status":"signed_v1","signed_at":"2026-07-16T01:23:14.121018Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.13926","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d954d1035e3409e7dfec61487cfe2741c9ba62935add8b1ea77200d124c882b1","sha256:061133d56537a06b824ac1303edceb5bca6d4b475c5b4c613b5c7f6337352c31"],"state_sha256":"63873d23a9bb29c8074f30a3480cbc3b85d19379d2b3b33aa33a977d632ee9ba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RpU4czNzm19+Onr5lq6I3Qvblqq4JZMQ5UeRO9FbIASc+DBHGv34+W+pOzjstPu9k9m5einQBjd73T3CvNUUDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:12:16.383815Z","bundle_sha256":"8cf4d22bf0522566cbf890008910752e0bb684a653d7720029f83aacd6232e49"}}