{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:TJUB22R7Y24LPTASTZUCLZZAME","short_pith_number":"pith:TJUB22R7","schema_version":"1.0","canonical_sha256":"9a681d6a3fc6b8b7cc129e6825e72061274ef5e10adb52d04f589bfdded45852","source":{"kind":"arxiv","id":"2605.16588","version":1},"attestation_state":"computed","paper":{"title":"Policy Library CBF: Finite-Horizon Safety at Runtime via Parallel Rollouts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SY","eess.SY"],"primary_cat":"cs.RO","authors_text":"Bardh Hoxha, Dimitra Panagou, Georgios Fainekos, Hideki Okamoto, Taekyung Kim","submitted_at":"2026-05-15T19:45:52Z","abstract_excerpt":"Safety-critical autonomy in unstructured environments poses significant challenges for online safety certification under evolving constraints. We propose Policy Library Control Barrier Function~(PL-CBF), a runtime safety filter that evaluates a library of fallback policies via parallel finite-horizon rollouts, selects the least invasive safe mode, and enforces safety by solving a quadratic program that minimally modifies a nominal policy. We provide a theoretical analysis based on a finite-horizon language metric over closed-loop behaviors, characterizing policy-library coverage requirements f"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.16588","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.RO","submitted_at":"2026-05-15T19:45:52Z","cross_cats_sorted":["cs.SY","eess.SY"],"title_canon_sha256":"01d3b47d79001402469384e07a8f62d8129d5f1a79c1f2605d1fd8f676f0f253","abstract_canon_sha256":"716768b58ddf2bb063c914e4fd27e1d72127f192cf4990a583726dc23a976cb7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:02:31.368877Z","signature_b64":"NFasc8LtL2MhvaGw1KuI3YoC76dSahzpYGGN90kTvyq/O8dr3Rz8dD84fIXemUDqpwjvSq0kjGJbEd/bZcvmDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a681d6a3fc6b8b7cc129e6825e72061274ef5e10adb52d04f589bfdded45852","last_reissued_at":"2026-05-20T00:02:31.367934Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:02:31.367934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Policy Library CBF: Finite-Horizon Safety at Runtime via Parallel Rollouts","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SY","eess.SY"],"primary_cat":"cs.RO","authors_text":"Bardh Hoxha, Dimitra Panagou, Georgios Fainekos, Hideki Okamoto, Taekyung Kim","submitted_at":"2026-05-15T19:45:52Z","abstract_excerpt":"Safety-critical autonomy in unstructured environments poses significant challenges for online safety certification under evolving constraints. We propose Policy Library Control Barrier Function~(PL-CBF), a runtime safety filter that evaluates a library of fallback policies via parallel finite-horizon rollouts, selects the least invasive safe mode, and enforces safety by solving a quadratic program that minimally modifies a nominal policy. We provide a theoretical analysis based on a finite-horizon language metric over closed-loop behaviors, characterizing policy-library coverage requirements f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.16588","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/2605.16588/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"claim_evidence","ran_at":"2026-05-19T19:21:56.838057Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T18:33:26.609010Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"0ff8c317b9a40763b9f81f10924ae922514919c34b7ad8b2904cce2f5ae12355"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2605.16588","created_at":"2026-05-20T00:02:31.368092+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.16588v1","created_at":"2026-05-20T00:02:31.368092+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.16588","created_at":"2026-05-20T00:02:31.368092+00:00"},{"alias_kind":"pith_short_12","alias_value":"TJUB22R7Y24L","created_at":"2026-05-20T00:02:31.368092+00:00"},{"alias_kind":"pith_short_16","alias_value":"TJUB22R7Y24LPTAS","created_at":"2026-05-20T00:02:31.368092+00:00"},{"alias_kind":"pith_short_8","alias_value":"TJUB22R7","created_at":"2026-05-20T00:02:31.368092+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME","json":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME.json","graph_json":"https://pith.science/api/pith-number/TJUB22R7Y24LPTASTZUCLZZAME/graph.json","events_json":"https://pith.science/api/pith-number/TJUB22R7Y24LPTASTZUCLZZAME/events.json","paper":"https://pith.science/paper/TJUB22R7"},"agent_actions":{"view_html":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME","download_json":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME.json","view_paper":"https://pith.science/paper/TJUB22R7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.16588&json=true","fetch_graph":"https://pith.science/api/pith-number/TJUB22R7Y24LPTASTZUCLZZAME/graph.json","fetch_events":"https://pith.science/api/pith-number/TJUB22R7Y24LPTASTZUCLZZAME/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME/action/storage_attestation","attest_author":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME/action/author_attestation","sign_citation":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME/action/citation_signature","submit_replication":"https://pith.science/pith/TJUB22R7Y24LPTASTZUCLZZAME/action/replication_record"}},"created_at":"2026-05-20T00:02:31.368092+00:00","updated_at":"2026-05-20T00:02:31.368092+00:00"}