{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:AWPS5NQD5LLSNCFZXNEDN2M6BR","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":"184fc102037258292701c3041bb4ec3b18f69ae29295be66b3b2059add6b1bb4","cross_cats_sorted":["cs.AI","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-02-25T18:34:03Z","title_canon_sha256":"767cdcb210fa8138f0b1691c0252daa31af893cdfc4d2ef485bfe033b8f6d6a6"},"schema_version":"1.0","source":{"id":"2602.22188","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.22188","created_at":"2026-06-25T00:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"2602.22188v2","created_at":"2026-06-25T00:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.22188","created_at":"2026-06-25T00:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"AWPS5NQD5LLS","created_at":"2026-06-25T00:18:13Z"},{"alias_kind":"pith_short_16","alias_value":"AWPS5NQD5LLSNCFZ","created_at":"2026-06-25T00:18:13Z"},{"alias_kind":"pith_short_8","alias_value":"AWPS5NQD","created_at":"2026-06-25T00:18:13Z"}],"graph_snapshots":[{"event_id":"sha256:b7deb4471fa6ee3f24947c4b922c8209653e239a8eee67262da1e51c4f88a54d","target":"graph","created_at":"2026-06-25T00:18:13Z","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/2602.22188/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modelling rock-fluid interaction requires solving a set of partial differential equations (PDEs) to predict the flow behaviour and the reactions of the fluid with the rock on the interfaces. Conventional high-fidelity numerical models require a high resolution to obtain reliable results, resulting in huge computational expense. This restricts the applicability of these models for multi-query problems, such as uncertainty quantification and optimisation, which require running numerous scenarios. As a cheaper alternative to high-fidelity models, this work develops eight surrogate models for pred","authors_text":"Ahmed H. Elsheikh, Aniket C. Joshi, Christopher C. Pain, Claire E. Heaney, Donghu Guo, Hannah P. Menke, Nathalie C. Pinheiro","cross_cats":["cs.AI","physics.flu-dyn"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-02-25T18:34:03Z","title":"Surrogate models for Rock-Fluid Interaction: A Grid-Size-Invariant Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.22188","kind":"arxiv","version":2},"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":"sha256:6001ea566e4461d83f65a4abbf3412b6d25d1ccf7f3cf12c4ca5ddd816780c8b","target":"record","created_at":"2026-06-25T00:18:13Z","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":"184fc102037258292701c3041bb4ec3b18f69ae29295be66b3b2059add6b1bb4","cross_cats_sorted":["cs.AI","physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-02-25T18:34:03Z","title_canon_sha256":"767cdcb210fa8138f0b1691c0252daa31af893cdfc4d2ef485bfe033b8f6d6a6"},"schema_version":"1.0","source":{"id":"2602.22188","kind":"arxiv","version":2}},"canonical_sha256":"059f2eb603ead72688b9bb4836e99e0c588a74f41d47263bcee87e7b066f38d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"059f2eb603ead72688b9bb4836e99e0c588a74f41d47263bcee87e7b066f38d0","first_computed_at":"2026-06-25T00:18:13.147641Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-25T00:18:13.147641Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L3fI7SgpXa2S0GdZwbe+f+0QL/+yWjxih4ohUDdETK7eYHft5ZCYUem1xRRTbBiJCfFGmgzEf/qIboph+nemBA==","signature_status":"signed_v1","signed_at":"2026-06-25T00:18:13.148128Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.22188","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6001ea566e4461d83f65a4abbf3412b6d25d1ccf7f3cf12c4ca5ddd816780c8b","sha256:b7deb4471fa6ee3f24947c4b922c8209653e239a8eee67262da1e51c4f88a54d"],"state_sha256":"39c2dfa496095cc192c01cd2b0071ac2037a77a5b334c3f847e7d61520528407"}