{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:AVAILPB4MWYC3CLDKKATRVMSFS","short_pith_number":"pith:AVAILPB4","canonical_record":{"source":{"id":"2505.17279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-22T20:54:28Z","cross_cats_sorted":[],"title_canon_sha256":"86cbac8517e0df865fe6074dda4f63933a316a24d96775e5c499b3ec6bce89d4","abstract_canon_sha256":"d893ee18fa9899b048706a22a5984866798de8aa21f83c1cd237365aa2375f34"},"schema_version":"1.0"},"canonical_sha256":"054085bc3c65b02d8963528138d5922ca87ebeaccfd47a7af7f15a7e8da4e186","source":{"kind":"arxiv","id":"2505.17279","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17279","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17279v1","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17279","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"AVAILPB4MWYC","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_16","alias_value":"AVAILPB4MWYC3CLD","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_8","alias_value":"AVAILPB4","created_at":"2026-07-05T11:08:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:AVAILPB4MWYC3CLDKKATRVMSFS","target":"record","payload":{"canonical_record":{"source":{"id":"2505.17279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-22T20:54:28Z","cross_cats_sorted":[],"title_canon_sha256":"86cbac8517e0df865fe6074dda4f63933a316a24d96775e5c499b3ec6bce89d4","abstract_canon_sha256":"d893ee18fa9899b048706a22a5984866798de8aa21f83c1cd237365aa2375f34"},"schema_version":"1.0"},"canonical_sha256":"054085bc3c65b02d8963528138d5922ca87ebeaccfd47a7af7f15a7e8da4e186","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:08:23.825139Z","signature_b64":"BDIufu/huspsQHDIyZY69iJ7LPAQunAnXmG6rxtOSCaRddMrBrM6Mkx0mStVNViD/Ni6r5BeyJ82yTV6/5kDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"054085bc3c65b02d8963528138d5922ca87ebeaccfd47a7af7f15a7e8da4e186","last_reissued_at":"2026-07-05T11:08:23.823883Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:08:23.823883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.17279","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JZAhs1hiHSOt8t49sIrFSHErSuQYgvMQBRic2CxW5OO9SaTWM0UWsS28gWsRPkSYahDAPJvWU9/x2UqIUb73Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T01:02:31.322776Z"},"content_sha256":"0e59342b531892f8dc6641c6c5c373a59a6341768bc7fafb694d122941a0dfe4","schema_version":"1.0","event_id":"sha256:0e59342b531892f8dc6641c6c5c373a59a6341768bc7fafb694d122941a0dfe4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:AVAILPB4MWYC3CLDKKATRVMSFS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bayesian and non-Bayesian multi-fidelity surrogate models for multi-objective aerodynamic optimization under extreme cost imbalance","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Anca Belme, Marc Schouler, Paola Cinnella","submitted_at":"2025-05-22T20:54:28Z","abstract_excerpt":"Aerodynamic shape optimization in industry still faces challenges related to robustness and scalability. This aspect becomes crucial for advanced optimizations that rely on expensive high-fidelity flow solvers, where computational budget constraints only allow a very limited number of simulations within the optimization loop. To address these challenges, we investigate strategies based on multi-fidelity surrogate models. In particular, we focus on the case of extreme computational cost imbalance between the high- and low-fidelity models, which severely limits the maximum allowable number of hi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17279","kind":"arxiv","version":1},"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/2505.17279/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":"2026-07-05T11:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V/pLGcGp3SmdXobbk6hlQl/QSRMlTvl7//RORzDDe4FnMPz+hwLD0MMNYcTxIUC8o8LK9zjnWXW9MTUgY9sDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T01:02:31.323561Z"},"content_sha256":"2c9059d887459c175fe4e23582553509df2cd2017232883d6fe8cdb82604306f","schema_version":"1.0","event_id":"sha256:2c9059d887459c175fe4e23582553509df2cd2017232883d6fe8cdb82604306f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AVAILPB4MWYC3CLDKKATRVMSFS/bundle.json","state_url":"https://pith.science/pith/AVAILPB4MWYC3CLDKKATRVMSFS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AVAILPB4MWYC3CLDKKATRVMSFS/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":"2026-08-03T01:02:31Z","links":{"resolver":"https://pith.science/pith/AVAILPB4MWYC3CLDKKATRVMSFS","bundle":"https://pith.science/pith/AVAILPB4MWYC3CLDKKATRVMSFS/bundle.json","state":"https://pith.science/pith/AVAILPB4MWYC3CLDKKATRVMSFS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AVAILPB4MWYC3CLDKKATRVMSFS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AVAILPB4MWYC3CLDKKATRVMSFS","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":"d893ee18fa9899b048706a22a5984866798de8aa21f83c1cd237365aa2375f34","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-22T20:54:28Z","title_canon_sha256":"86cbac8517e0df865fe6074dda4f63933a316a24d96775e5c499b3ec6bce89d4"},"schema_version":"1.0","source":{"id":"2505.17279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.17279","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.17279v1","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.17279","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"AVAILPB4MWYC","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_16","alias_value":"AVAILPB4MWYC3CLD","created_at":"2026-07-05T11:08:23Z"},{"alias_kind":"pith_short_8","alias_value":"AVAILPB4","created_at":"2026-07-05T11:08:23Z"}],"graph_snapshots":[{"event_id":"sha256:2c9059d887459c175fe4e23582553509df2cd2017232883d6fe8cdb82604306f","target":"graph","created_at":"2026-07-05T11:08:23Z","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/2505.17279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Aerodynamic shape optimization in industry still faces challenges related to robustness and scalability. This aspect becomes crucial for advanced optimizations that rely on expensive high-fidelity flow solvers, where computational budget constraints only allow a very limited number of simulations within the optimization loop. To address these challenges, we investigate strategies based on multi-fidelity surrogate models. In particular, we focus on the case of extreme computational cost imbalance between the high- and low-fidelity models, which severely limits the maximum allowable number of hi","authors_text":"Anca Belme, Marc Schouler, Paola Cinnella","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-22T20:54:28Z","title":"Bayesian and non-Bayesian multi-fidelity surrogate models for multi-objective aerodynamic optimization under extreme cost imbalance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.17279","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":"sha256:0e59342b531892f8dc6641c6c5c373a59a6341768bc7fafb694d122941a0dfe4","target":"record","created_at":"2026-07-05T11:08:23Z","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":"d893ee18fa9899b048706a22a5984866798de8aa21f83c1cd237365aa2375f34","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-22T20:54:28Z","title_canon_sha256":"86cbac8517e0df865fe6074dda4f63933a316a24d96775e5c499b3ec6bce89d4"},"schema_version":"1.0","source":{"id":"2505.17279","kind":"arxiv","version":1}},"canonical_sha256":"054085bc3c65b02d8963528138d5922ca87ebeaccfd47a7af7f15a7e8da4e186","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"054085bc3c65b02d8963528138d5922ca87ebeaccfd47a7af7f15a7e8da4e186","first_computed_at":"2026-07-05T11:08:23.823883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:08:23.823883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BDIufu/huspsQHDIyZY69iJ7LPAQunAnXmG6rxtOSCaRddMrBrM6Mkx0mStVNViD/Ni6r5BeyJ82yTV6/5kDAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:08:23.825139Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.17279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e59342b531892f8dc6641c6c5c373a59a6341768bc7fafb694d122941a0dfe4","sha256:2c9059d887459c175fe4e23582553509df2cd2017232883d6fe8cdb82604306f"],"state_sha256":"59ca5d3af686a7deb5f3d1fc6acb67ea55371c874be835885e8975a8d7010805"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EV8KMs6oJisHXxY52j5hiBMK/0f/DfLqwxPyOVsURe8Z3YJLNCVVJa6GBt3Oxe2YZlJGX6FNVzE4Js21ngmRDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T01:02:31.328357Z","bundle_sha256":"f3468a358eeb8132b291da36dc0d46ab240067cc3ad31c5e7855fe4b51ba07ef"}}