{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:6KY2V5QPJNTBUZH2ICMUEJ2XLX","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":"ef25798ac9afa7df4b0097da231d2d3cde0e05a477d9d17297055d17720ad607","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-04-03T23:23:25Z","title_canon_sha256":"2f5acf7036e388edd5ce678d3a20d8af9e6d9324ea3aa72edd11431c38129820"},"schema_version":"1.0","source":{"id":"2506.18853","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.18853","created_at":"2026-07-05T11:25:57Z"},{"alias_kind":"arxiv_version","alias_value":"2506.18853v1","created_at":"2026-07-05T11:25:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.18853","created_at":"2026-07-05T11:25:57Z"},{"alias_kind":"pith_short_12","alias_value":"6KY2V5QPJNTB","created_at":"2026-07-05T11:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"6KY2V5QPJNTBUZH2","created_at":"2026-07-05T11:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"6KY2V5QP","created_at":"2026-07-05T11:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:35ddd8a453b113a9c7961ef619067993eb88c9f60d0650f482170932a40e945f","target":"graph","created_at":"2026-07-05T11:25:57Z","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/2506.18853/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Skeletal reaction models are derived for a four-component gasoline surrogate model via an instantaneous local sensitivity analysis technique. The sensitivities of the species mass fractions and the temperature with respect to the reaction rates are estimated by a reduced-order modeling (ROM) methodology. Termed \"implicit time-dependent basis CUR (implicit TDB-CUR),\" this methodology is based on the CUR matrix decomposition and incorporates implicit time integration for evolving the bases. The estimated sensitivities are subsequently analyzed to develop skeletal reaction models with a fully aut","authors_text":"Arash Nouri, Daniel Livescu, Hessam Babaee, Peyman Givi, Yinmin Liu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-04-03T23:23:25Z","title":"Skeletal Reaction Models for Gasoline Surrogate Combustion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.18853","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:b28b097360399e78fbcd72283fa968761588f148641be3ed832bedbfd6dd6956","target":"record","created_at":"2026-07-05T11:25:57Z","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":"ef25798ac9afa7df4b0097da231d2d3cde0e05a477d9d17297055d17720ad607","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-04-03T23:23:25Z","title_canon_sha256":"2f5acf7036e388edd5ce678d3a20d8af9e6d9324ea3aa72edd11431c38129820"},"schema_version":"1.0","source":{"id":"2506.18853","kind":"arxiv","version":1}},"canonical_sha256":"f2b1aaf60f4b661a64fa40994227575dfdddd87c5da7e25d3557a4ebccf1f91d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2b1aaf60f4b661a64fa40994227575dfdddd87c5da7e25d3557a4ebccf1f91d","first_computed_at":"2026-07-05T11:25:57.080887Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:25:57.080887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KDt01CCTUsZKruZmFWSATAsxstPu+Qf5Nl1syg+p/+QA7PAbDMdaTmNrtYboL3EQbvCwRcKxZA8jnb7+MRRoCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:25:57.081385Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.18853","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b28b097360399e78fbcd72283fa968761588f148641be3ed832bedbfd6dd6956","sha256:35ddd8a453b113a9c7961ef619067993eb88c9f60d0650f482170932a40e945f"],"state_sha256":"f26b67695a5f9faa1590c34bc017a73df1f1bc0909c229ac4867560ef0bee406"}