{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ZKO633E723SFG7EDGW7VIPSMGB","short_pith_number":"pith:ZKO633E7","canonical_record":{"source":{"id":"2209.13434","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-09-27T14:41:56Z","cross_cats_sorted":["cs.LG","physics.comp-ph"],"title_canon_sha256":"e11208c9f71bb5dd7e11dd7471c5b3e8a07791c6ad861f4bddfec3eac9b96979","abstract_canon_sha256":"6663fbab317454b51636ed5127cdfbf70fd252c1e7c41f0cd63c85fbecd6b774"},"schema_version":"1.0"},"canonical_sha256":"ca9dedec9fd6e4537c8335bf543e4c306f263cee174ad7b26a2d3a5e6deee2bf","source":{"kind":"arxiv","id":"2209.13434","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.13434","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"2209.13434v2","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.13434","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"ZKO633E723SF","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_16","alias_value":"ZKO633E723SFG7ED","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_8","alias_value":"ZKO633E7","created_at":"2026-07-05T05:02:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ZKO633E723SFG7EDGW7VIPSMGB","target":"record","payload":{"canonical_record":{"source":{"id":"2209.13434","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-09-27T14:41:56Z","cross_cats_sorted":["cs.LG","physics.comp-ph"],"title_canon_sha256":"e11208c9f71bb5dd7e11dd7471c5b3e8a07791c6ad861f4bddfec3eac9b96979","abstract_canon_sha256":"6663fbab317454b51636ed5127cdfbf70fd252c1e7c41f0cd63c85fbecd6b774"},"schema_version":"1.0"},"canonical_sha256":"ca9dedec9fd6e4537c8335bf543e4c306f263cee174ad7b26a2d3a5e6deee2bf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:02:14.225917Z","signature_b64":"Mm+eZcR/Kdso4bqdnDdvYH/Dcmx+LJBVDtcm9z2mDwt6KJ3eXDSHIBpms07nfyyxc2mcTbh5Bbv7muk2Qz6CAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca9dedec9fd6e4537c8335bf543e4c306f263cee174ad7b26a2d3a5e6deee2bf","last_reissued_at":"2026-07-05T05:02:14.225467Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:02:14.225467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.13434","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+yYCQLdPIzG20d79zJJ/gK3rmYWrS/fO57a+p1+lLPJaNKq5NdeGkZOt9HSsjnh4LXGwHUW93rqRBhd28LtBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:44:01.000197Z"},"content_sha256":"1179608eba5c35762c3d950d550a4e9ad5f2284e7467749349fc74f5441a0c2d","schema_version":"1.0","event_id":"sha256:1179608eba5c35762c3d950d550a4e9ad5f2284e7467749349fc74f5441a0c2d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ZKO633E723SFG7EDGW7VIPSMGB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accelerating hypersonic reentry simulations using deep learning-based hybridization (with guarantees)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LG","physics.comp-ph"],"primary_cat":"stat.ML","authors_text":"David Lugato, Ga\\\"el Po\\\"ette, Paul Novello, Pietro Marco Congedo, Simon Peluchon","submitted_at":"2022-09-27T14:41:56Z","abstract_excerpt":"In this paper, we are interested in the acceleration of numerical simulations. We focus on a hypersonic planetary reentry problem whose simulation involves coupling fluid dynamics and chemical reactions. Simulating chemical reactions takes most of the computational time but, on the other hand, cannot be avoided to obtain accurate predictions. We face a trade-off between cost-efficiency and accuracy: the simulation code has to be sufficiently efficient to be used in an operational context but accurate enough to predict the phenomenon faithfully. To tackle this trade-off, we design a hybrid simu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.13434","kind":"arxiv","version":2},"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/2209.13434/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":"2026-07-05T05:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RS1VRKmhiQOlF7t1mYpFRa+7Xv23hVSKrokZiiyMjscHzAfWNkzgXCv8Ywrs4XQUSxfH8mgIZRnh1rmlbqWPDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T17:44:01.001187Z"},"content_sha256":"71a2d164ab001b24376f62955b94dceaa0724c060bf7f3eba1c94c2f1028b851","schema_version":"1.0","event_id":"sha256:71a2d164ab001b24376f62955b94dceaa0724c060bf7f3eba1c94c2f1028b851"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZKO633E723SFG7EDGW7VIPSMGB/bundle.json","state_url":"https://pith.science/pith/ZKO633E723SFG7EDGW7VIPSMGB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZKO633E723SFG7EDGW7VIPSMGB/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":"2026-08-19T17:44:01Z","links":{"resolver":"https://pith.science/pith/ZKO633E723SFG7EDGW7VIPSMGB","bundle":"https://pith.science/pith/ZKO633E723SFG7EDGW7VIPSMGB/bundle.json","state":"https://pith.science/pith/ZKO633E723SFG7EDGW7VIPSMGB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZKO633E723SFG7EDGW7VIPSMGB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ZKO633E723SFG7EDGW7VIPSMGB","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":"6663fbab317454b51636ed5127cdfbf70fd252c1e7c41f0cd63c85fbecd6b774","cross_cats_sorted":["cs.LG","physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-09-27T14:41:56Z","title_canon_sha256":"e11208c9f71bb5dd7e11dd7471c5b3e8a07791c6ad861f4bddfec3eac9b96979"},"schema_version":"1.0","source":{"id":"2209.13434","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.13434","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"2209.13434v2","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.13434","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"ZKO633E723SF","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_16","alias_value":"ZKO633E723SFG7ED","created_at":"2026-07-05T05:02:14Z"},{"alias_kind":"pith_short_8","alias_value":"ZKO633E7","created_at":"2026-07-05T05:02:14Z"}],"graph_snapshots":[{"event_id":"sha256:71a2d164ab001b24376f62955b94dceaa0724c060bf7f3eba1c94c2f1028b851","target":"graph","created_at":"2026-07-05T05:02:14Z","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/2209.13434/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we are interested in the acceleration of numerical simulations. We focus on a hypersonic planetary reentry problem whose simulation involves coupling fluid dynamics and chemical reactions. Simulating chemical reactions takes most of the computational time but, on the other hand, cannot be avoided to obtain accurate predictions. We face a trade-off between cost-efficiency and accuracy: the simulation code has to be sufficiently efficient to be used in an operational context but accurate enough to predict the phenomenon faithfully. To tackle this trade-off, we design a hybrid simu","authors_text":"David Lugato, Ga\\\"el Po\\\"ette, Paul Novello, Pietro Marco Congedo, Simon Peluchon","cross_cats":["cs.LG","physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-09-27T14:41:56Z","title":"Accelerating hypersonic reentry simulations using deep learning-based hybridization (with guarantees)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.13434","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":"sha256:1179608eba5c35762c3d950d550a4e9ad5f2284e7467749349fc74f5441a0c2d","target":"record","created_at":"2026-07-05T05:02:14Z","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":"6663fbab317454b51636ed5127cdfbf70fd252c1e7c41f0cd63c85fbecd6b774","cross_cats_sorted":["cs.LG","physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ML","submitted_at":"2022-09-27T14:41:56Z","title_canon_sha256":"e11208c9f71bb5dd7e11dd7471c5b3e8a07791c6ad861f4bddfec3eac9b96979"},"schema_version":"1.0","source":{"id":"2209.13434","kind":"arxiv","version":2}},"canonical_sha256":"ca9dedec9fd6e4537c8335bf543e4c306f263cee174ad7b26a2d3a5e6deee2bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca9dedec9fd6e4537c8335bf543e4c306f263cee174ad7b26a2d3a5e6deee2bf","first_computed_at":"2026-07-05T05:02:14.225467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:02:14.225467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mm+eZcR/Kdso4bqdnDdvYH/Dcmx+LJBVDtcm9z2mDwt6KJ3eXDSHIBpms07nfyyxc2mcTbh5Bbv7muk2Qz6CAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:02:14.225917Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.13434","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1179608eba5c35762c3d950d550a4e9ad5f2284e7467749349fc74f5441a0c2d","sha256:71a2d164ab001b24376f62955b94dceaa0724c060bf7f3eba1c94c2f1028b851"],"state_sha256":"8b1db6ac68b505e2b04768cb0688e9ac24c152fe1029ac4c321a38e8eca39828"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nvYx2S01UW433bUhgoB1bh40v+/clXVjDlLFcurVypXLSeAQZjqpr+G+kmgI0npCZekqd0nGHkMddTo8TijsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T17:44:01.008280Z","bundle_sha256":"a63f1f475a1d1be5c8fc3aeee5d929ad3a39f683d308aaed7cae79107a3465a0"}}