{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RRBOSCEZSGLN2FWQS6MVHRXZVQ","short_pith_number":"pith:RRBOSCEZ","canonical_record":{"source":{"id":"1812.01177","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-12-01T02:17:04Z","cross_cats_sorted":["cs.NA","math.NA"],"title_canon_sha256":"94b82fe0b5d5b98690236aaf00625d3f0eaad6730c05299b645971848ec6cbd7","abstract_canon_sha256":"c4055a55c7fdf9c39e984b6ef28720954446abc02a88f451a8b76b2c6a54d70c"},"schema_version":"1.0"},"canonical_sha256":"8c42e908999196dd16d0979953c6f9ac297f5b8c2c6fddff633a9c9cc336de1d","source":{"kind":"arxiv","id":"1812.01177","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.01177","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"1812.01177v3","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.01177","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"RRBOSCEZSGLN","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"RRBOSCEZSGLN2FWQ","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"RRBOSCEZ","created_at":"2026-06-04T20:13:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RRBOSCEZSGLN2FWQS6MVHRXZVQ","target":"record","payload":{"canonical_record":{"source":{"id":"1812.01177","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-12-01T02:17:04Z","cross_cats_sorted":["cs.NA","math.NA"],"title_canon_sha256":"94b82fe0b5d5b98690236aaf00625d3f0eaad6730c05299b645971848ec6cbd7","abstract_canon_sha256":"c4055a55c7fdf9c39e984b6ef28720954446abc02a88f451a8b76b2c6a54d70c"},"schema_version":"1.0"},"canonical_sha256":"8c42e908999196dd16d0979953c6f9ac297f5b8c2c6fddff633a9c9cc336de1d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T20:13:45.073561Z","signature_b64":"NVTA4YAUatxmPcJ8gzWQglBMDrrRMkR43TlRwG99VCJeodAMwUxvcGZSZ26eiHlGVdmEnn67ODZ3tRPBSx5mDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c42e908999196dd16d0979953c6f9ac297f5b8c2c6fddff633a9c9cc336de1d","last_reissued_at":"2026-06-04T20:13:45.072925Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T20:13:45.072925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.01177","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-04T20:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iV3yOlNHZ5jRmKlOVPvSKnY63t5BIEOdgiPxdXPQQFeEWAAyqse7kAPdUp21m4lZ3AObYNubT7GNtsh4mzd8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T08:41:42.965020Z"},"content_sha256":"7986d60dcfb6c3017c4eeb248f0194fc1d1ac92a38ae69a4fd2b667eff2a227c","schema_version":"1.0","event_id":"sha256:7986d60dcfb6c3017c4eeb248f0194fc1d1ac92a38ae69a4fd2b667eff2a227c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RRBOSCEZSGLN2FWQS6MVHRXZVQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recovering missing CFD data for high-order discretizations using deep neural networks and dynamics learning","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA","math.NA"],"primary_cat":"physics.comp-ph","authors_text":"Antony Jameson, Freddie D. Witherden, Jeremy Morton, Kevin T. Carlberg, Liqian Peng, Mykel J. Kochenderfer","submitted_at":"2018-12-01T02:17:04Z","abstract_excerpt":"Data I/O poses a significant bottleneck in large-scale CFD simulations; thus, practitioners would like to significantly reduce the number of times the solution is saved to disk, yet retain the ability to recover any field quantity (at any time instance) a posteriori. The objective of this work is therefore to accurately recover missing CFD data a posteriori at any time instance, given that the solution has been written to disk at only a relatively small number of time instances. We consider in particular high-order discretizations (e.g., discontinuous Galerkin), as such techniques are becoming"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.01177","kind":"arxiv","version":3},"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/1812.01177/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":"2026-06-04T20:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PEHSwz2BxtCj/vcTcn+n0eETNZoMq5z7IHbQv1cwNr4InLqFlY7JLOzKReveB7u8xtIXnPCdLBPTXc1ijiRrCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T08:41:42.965462Z"},"content_sha256":"2c5d7f6966454535e6b572ba69ab0c00a6122bd5553fdf163fe708bb3ca467c2","schema_version":"1.0","event_id":"sha256:2c5d7f6966454535e6b572ba69ab0c00a6122bd5553fdf163fe708bb3ca467c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/bundle.json","state_url":"https://pith.science/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/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":"2026-06-10T08:41:42Z","links":{"resolver":"https://pith.science/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ","bundle":"https://pith.science/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/bundle.json","state":"https://pith.science/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RRBOSCEZSGLN2FWQS6MVHRXZVQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RRBOSCEZSGLN2FWQS6MVHRXZVQ","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":"c4055a55c7fdf9c39e984b6ef28720954446abc02a88f451a8b76b2c6a54d70c","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-12-01T02:17:04Z","title_canon_sha256":"94b82fe0b5d5b98690236aaf00625d3f0eaad6730c05299b645971848ec6cbd7"},"schema_version":"1.0","source":{"id":"1812.01177","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.01177","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"1812.01177v3","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.01177","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"RRBOSCEZSGLN","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_16","alias_value":"RRBOSCEZSGLN2FWQ","created_at":"2026-06-04T20:13:45Z"},{"alias_kind":"pith_short_8","alias_value":"RRBOSCEZ","created_at":"2026-06-04T20:13:45Z"}],"graph_snapshots":[{"event_id":"sha256:2c5d7f6966454535e6b572ba69ab0c00a6122bd5553fdf163fe708bb3ca467c2","target":"graph","created_at":"2026-06-04T20:13:45Z","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/1812.01177/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Data I/O poses a significant bottleneck in large-scale CFD simulations; thus, practitioners would like to significantly reduce the number of times the solution is saved to disk, yet retain the ability to recover any field quantity (at any time instance) a posteriori. The objective of this work is therefore to accurately recover missing CFD data a posteriori at any time instance, given that the solution has been written to disk at only a relatively small number of time instances. We consider in particular high-order discretizations (e.g., discontinuous Galerkin), as such techniques are becoming","authors_text":"Antony Jameson, Freddie D. Witherden, Jeremy Morton, Kevin T. Carlberg, Liqian Peng, Mykel J. Kochenderfer","cross_cats":["cs.NA","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-12-01T02:17:04Z","title":"Recovering missing CFD data for high-order discretizations using deep neural networks and dynamics learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.01177","kind":"arxiv","version":3},"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":"sha256:7986d60dcfb6c3017c4eeb248f0194fc1d1ac92a38ae69a4fd2b667eff2a227c","target":"record","created_at":"2026-06-04T20:13:45Z","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":"c4055a55c7fdf9c39e984b6ef28720954446abc02a88f451a8b76b2c6a54d70c","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2018-12-01T02:17:04Z","title_canon_sha256":"94b82fe0b5d5b98690236aaf00625d3f0eaad6730c05299b645971848ec6cbd7"},"schema_version":"1.0","source":{"id":"1812.01177","kind":"arxiv","version":3}},"canonical_sha256":"8c42e908999196dd16d0979953c6f9ac297f5b8c2c6fddff633a9c9cc336de1d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c42e908999196dd16d0979953c6f9ac297f5b8c2c6fddff633a9c9cc336de1d","first_computed_at":"2026-06-04T20:13:45.072925Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-04T20:13:45.072925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NVTA4YAUatxmPcJ8gzWQglBMDrrRMkR43TlRwG99VCJeodAMwUxvcGZSZ26eiHlGVdmEnn67ODZ3tRPBSx5mDQ==","signature_status":"signed_v1","signed_at":"2026-06-04T20:13:45.073561Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.01177","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7986d60dcfb6c3017c4eeb248f0194fc1d1ac92a38ae69a4fd2b667eff2a227c","sha256:2c5d7f6966454535e6b572ba69ab0c00a6122bd5553fdf163fe708bb3ca467c2"],"state_sha256":"112c2bca2f9a297f7299c78e80a7d0b3e66b54b24d087418834f1ab8f99e4075"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L5nIjnm7FG6jyiGvEyHjo4axJIm6JJtwpGmR7MrmvaD1teoqQuIw8NOZhbSSBKSUakYL3EV/vzGooalm/RKhBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T08:41:42.968107Z","bundle_sha256":"3e37f9a30da0acb41e32ea28ff5f4cf674cdee13521004f2424072dd10a127d9"}}