{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:YWVSGDR4WYZDPNUUBZS3JFJ74R","short_pith_number":"pith:YWVSGDR4","canonical_record":{"source":{"id":"2608.09303","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-08-10T08:51:43Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"bc399a5395b27b54ee2730a18382c6b48d553a4e810cd96d5645aea57ba2f527","abstract_canon_sha256":"fea1990e8cdd88c1bf34f0ef9aecdf6d93249204136e742867eadabfee7af27e"},"schema_version":"1.0"},"canonical_sha256":"c5ab230e3cb63237b6940e65b4953fe46c642bcd5f247ffc774f737228bbeb67","source":{"kind":"arxiv","id":"2608.09303","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.09303","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2608.09303v1","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.09303","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"YWVSGDR4WYZD","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"YWVSGDR4WYZDPNUU","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"YWVSGDR4","created_at":"2026-08-11T02:22:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:YWVSGDR4WYZDPNUUBZS3JFJ74R","target":"record","payload":{"canonical_record":{"source":{"id":"2608.09303","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-08-10T08:51:43Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"bc399a5395b27b54ee2730a18382c6b48d553a4e810cd96d5645aea57ba2f527","abstract_canon_sha256":"fea1990e8cdd88c1bf34f0ef9aecdf6d93249204136e742867eadabfee7af27e"},"schema_version":"1.0"},"canonical_sha256":"c5ab230e3cb63237b6940e65b4953fe46c642bcd5f247ffc774f737228bbeb67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-11T02:22:18.407775Z","signature_b64":"qNvJyDybCsnjl5NoMWGwHZhFCC5kqz1iiY+tcReOLFCfwoUu6EUXTKpu9ttmMABVs6jgi1h9LSQdg+kI9aPvCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5ab230e3cb63237b6940e65b4953fe46c642bcd5f247ffc774f737228bbeb67","last_reissued_at":"2026-08-11T02:22:18.406199Z","signature_status":"signed_v1","first_computed_at":"2026-08-11T02:22:18.406199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.09303","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":"2026-08-11T02:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/Nih3Tuv560yd6e0SC+hipzcMV4iTUsUhoHX4jV99k3mozbI8zUqTHOKWt6dto6lXbeDiyw9eC2GHLz5GdkAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:13:04.829036Z"},"content_sha256":"f880a485787338f3e55e697a33d6c4eaa0f4fcbe010e51ad5aad0aa0175fb045","schema_version":"1.0","event_id":"sha256:f880a485787338f3e55e697a33d6c4eaa0f4fcbe010e51ad5aad0aa0175fb045"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:YWVSGDR4WYZDPNUUBZS3JFJ74R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SAFE-CHEM: Uncertainty-Aware Policy Switching for Robust Robotic Chemistry","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.RO","authors_text":"Ayesha Sana, Gabriella Pizzuto, Laura Jones, Shazil Shahzad","submitted_at":"2026-08-10T08:51:43Z","abstract_excerpt":"The deployment of autonomous robotic systems in chemistry laboratories is accelerating experimental workflows and providing the foundational data for AI-driven scientific discovery. However, despite the success of data-driven methods in acquiring dexterous skills, safety remains a primary barrier to their deployment in high-risk domains, such as early-stage materials chemistry experiments. Specifically, learning-based policies frequently struggle to distinguish between safe and unsafe actions, leading to overconfident extrapolation and potentially catastrophic failures. To mitigate these safet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.09303","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/2608.09303/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":"2026-08-11T02:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pjho8KcO6HVU0SlGfickkiOdlco41FOK4+mACEFlOTVDNap1EQaoIGdIjG8jFpTKHEgG6NY8yjA8OVCU4D0oBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:13:04.829566Z"},"content_sha256":"a7ec233d6beec78cdcdfec95b1aff47c6e582cf8a468c554af1a107039c9c613","schema_version":"1.0","event_id":"sha256:a7ec233d6beec78cdcdfec95b1aff47c6e582cf8a468c554af1a107039c9c613"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/bundle.json","state_url":"https://pith.science/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/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":"2026-08-20T16:13:04Z","links":{"resolver":"https://pith.science/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R","bundle":"https://pith.science/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/bundle.json","state":"https://pith.science/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YWVSGDR4WYZDPNUUBZS3JFJ74R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YWVSGDR4WYZDPNUUBZS3JFJ74R","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":"fea1990e8cdd88c1bf34f0ef9aecdf6d93249204136e742867eadabfee7af27e","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-08-10T08:51:43Z","title_canon_sha256":"bc399a5395b27b54ee2730a18382c6b48d553a4e810cd96d5645aea57ba2f527"},"schema_version":"1.0","source":{"id":"2608.09303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.09303","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"2608.09303v1","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.09303","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"YWVSGDR4WYZD","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_16","alias_value":"YWVSGDR4WYZDPNUU","created_at":"2026-08-11T02:22:18Z"},{"alias_kind":"pith_short_8","alias_value":"YWVSGDR4","created_at":"2026-08-11T02:22:18Z"}],"graph_snapshots":[{"event_id":"sha256:a7ec233d6beec78cdcdfec95b1aff47c6e582cf8a468c554af1a107039c9c613","target":"graph","created_at":"2026-08-11T02:22:18Z","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/2608.09303/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The deployment of autonomous robotic systems in chemistry laboratories is accelerating experimental workflows and providing the foundational data for AI-driven scientific discovery. However, despite the success of data-driven methods in acquiring dexterous skills, safety remains a primary barrier to their deployment in high-risk domains, such as early-stage materials chemistry experiments. Specifically, learning-based policies frequently struggle to distinguish between safe and unsafe actions, leading to overconfident extrapolation and potentially catastrophic failures. To mitigate these safet","authors_text":"Ayesha Sana, Gabriella Pizzuto, Laura Jones, Shazil Shahzad","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-08-10T08:51:43Z","title":"SAFE-CHEM: Uncertainty-Aware Policy Switching for Robust Robotic Chemistry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.09303","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:f880a485787338f3e55e697a33d6c4eaa0f4fcbe010e51ad5aad0aa0175fb045","target":"record","created_at":"2026-08-11T02:22:18Z","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":"fea1990e8cdd88c1bf34f0ef9aecdf6d93249204136e742867eadabfee7af27e","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-08-10T08:51:43Z","title_canon_sha256":"bc399a5395b27b54ee2730a18382c6b48d553a4e810cd96d5645aea57ba2f527"},"schema_version":"1.0","source":{"id":"2608.09303","kind":"arxiv","version":1}},"canonical_sha256":"c5ab230e3cb63237b6940e65b4953fe46c642bcd5f247ffc774f737228bbeb67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5ab230e3cb63237b6940e65b4953fe46c642bcd5f247ffc774f737228bbeb67","first_computed_at":"2026-08-11T02:22:18.406199Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-11T02:22:18.406199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qNvJyDybCsnjl5NoMWGwHZhFCC5kqz1iiY+tcReOLFCfwoUu6EUXTKpu9ttmMABVs6jgi1h9LSQdg+kI9aPvCw==","signature_status":"signed_v1","signed_at":"2026-08-11T02:22:18.407775Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.09303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f880a485787338f3e55e697a33d6c4eaa0f4fcbe010e51ad5aad0aa0175fb045","sha256:a7ec233d6beec78cdcdfec95b1aff47c6e582cf8a468c554af1a107039c9c613"],"state_sha256":"2124609992708afda4457dc07e1d773ebdff94dd90f4c30d38649ff8fb1a375e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B1ZqIuQ0v8HBPoNGIsFZgOk48VNdCykrbm1Ri2KKtm0H65roIH7NY9Q3dAWxMOGNmuSYL0No/rwbmF6+beX6Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T16:13:04.834521Z","bundle_sha256":"8ac5126f8c8afbe847f5471253f06fe9315351a64ec97bc61901369dcbd3b54b"}}