{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MU46R57TVFBN2UMNAPIMQTI7DD","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":"08e7f6a59f29e737835f44cef9b3b0daf43a595af0170a11afe0dc07510a2025","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2016-03-30T17:46:57Z","title_canon_sha256":"0903824cdbdccaf288f59920d542547e16f1bccbf7589bb607660bda5d993964"},"schema_version":"1.0","source":{"id":"1603.09290","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.09290","created_at":"2026-05-18T01:18:00Z"},{"alias_kind":"arxiv_version","alias_value":"1603.09290v1","created_at":"2026-05-18T01:18:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.09290","created_at":"2026-05-18T01:18:00Z"},{"alias_kind":"pith_short_12","alias_value":"MU46R57TVFBN","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MU46R57TVFBN2UMN","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MU46R57T","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:7395c4bf0c471ae12e832ebbadc4a9d4d4743323cf351f4a6b71579cc01d7b92","target":"graph","created_at":"2026-05-18T01:18:00Z","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"},"paper":{"abstract_excerpt":"Optimizing floating-point arithmetic is vital because it is ubiquitous, costly, and used in compute-heavy workloads. Implementing precise optimizations correctly, however, is difficult, since developers must account for all the esoteric properties of floating-point arithmetic to ensure that their transformations do not alter the output of a program. Manual reasoning is error prone and stifles incorporation of new optimizations. We present an approach to automate reasoning about floating-point optimizations using satisfiability modulo theories (SMT) solvers. We implement the approach in LifeJac","authors_text":"Andres N\\\"otzli, Fraser Brown","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2016-03-30T17:46:57Z","title":"LifeJacket: Verifying precise floating-point optimizations in LLVM"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.09290","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":"sha256:32ef4722a057cec4eb3cb405f87582ca29d9faf4997f3861fc3d799b2d90c4ec","target":"record","created_at":"2026-05-18T01:18:00Z","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":"08e7f6a59f29e737835f44cef9b3b0daf43a595af0170a11afe0dc07510a2025","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2016-03-30T17:46:57Z","title_canon_sha256":"0903824cdbdccaf288f59920d542547e16f1bccbf7589bb607660bda5d993964"},"schema_version":"1.0","source":{"id":"1603.09290","kind":"arxiv","version":1}},"canonical_sha256":"6539e8f7f3a942dd518d03d0c84d1f18c7a277b700847ee97e0f86cad3571987","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6539e8f7f3a942dd518d03d0c84d1f18c7a277b700847ee97e0f86cad3571987","first_computed_at":"2026-05-18T01:18:00.862038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:00.862038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HSm7ELgIY/9ZL/rC85e//9DMbfpEefnFfdoowFRM3o7GlWv0hM2FkIZWiXbGHWIRDhGbjlNk/XB3RHj9tHmhAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:00.862953Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.09290","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32ef4722a057cec4eb3cb405f87582ca29d9faf4997f3861fc3d799b2d90c4ec","sha256:7395c4bf0c471ae12e832ebbadc4a9d4d4743323cf351f4a6b71579cc01d7b92"],"state_sha256":"5a803543025cc4777abb619fba528a6776ea7069a5fb60e101a6ab2c3deddb74"}