{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:JW7VRN7DVN22QKFLPUNWAFQTVB","short_pith_number":"pith:JW7VRN7D","canonical_record":{"source":{"id":"2007.07071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-07-14T14:55:35Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"b0db20384061f2c9866f4aa587a8c50acfe2095adb86352a922066fa2d762c0b","abstract_canon_sha256":"6fd401741c9096e4daff9bcb90d6bcdfbc38df83d0fdf9ccad96e07470f4f2fb"},"schema_version":"1.0"},"canonical_sha256":"4dbf58b7e3ab75a828ab7d1b601613a855d1a0bd08865c34455c68a452c4bcff","source":{"kind":"arxiv","id":"2007.07071","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07071","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07071v1","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07071","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_12","alias_value":"JW7VRN7DVN22","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_16","alias_value":"JW7VRN7DVN22QKFL","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_8","alias_value":"JW7VRN7D","created_at":"2026-07-05T01:18:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:JW7VRN7DVN22QKFLPUNWAFQTVB","target":"record","payload":{"canonical_record":{"source":{"id":"2007.07071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-07-14T14:55:35Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"b0db20384061f2c9866f4aa587a8c50acfe2095adb86352a922066fa2d762c0b","abstract_canon_sha256":"6fd401741c9096e4daff9bcb90d6bcdfbc38df83d0fdf9ccad96e07470f4f2fb"},"schema_version":"1.0"},"canonical_sha256":"4dbf58b7e3ab75a828ab7d1b601613a855d1a0bd08865c34455c68a452c4bcff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:18:26.425807Z","signature_b64":"SQZu3t08TaxWu/e0v5aoHFcfabnpXT+frThUNMhcMV5p034NHYlhbesPdNFpBWMHS9y8u7PeJtJCbhpAppEZAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4dbf58b7e3ab75a828ab7d1b601613a855d1a0bd08865c34455c68a452c4bcff","last_reissued_at":"2026-07-05T01:18:26.425464Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:18:26.425464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.07071","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":"2026-07-05T01:18:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YXkt5L2XOtDIXL9/XXQplChA8hnWteW6rI5OTQA6zMJPZLJPGohRfAdY15C1fCwwiZSQUXeUveAhDEhcuH9qAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:07:12.596638Z"},"content_sha256":"5a6a992ad8ec79190a28430e8b4f8c402777a5b5c466c519147fc5f4f76543f6","schema_version":"1.0","event_id":"sha256:5a6a992ad8ec79190a28430e8b4f8c402777a5b5c466c519147fc5f4f76543f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:JW7VRN7DVN22QKFLPUNWAFQTVB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Uncertainty-Quantification Framework for Assessing Accuracy, Sensitivity, and Robustness in Computational Fluid Dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.comp-ph","authors_text":"Philipp Schlatter, Ricardo Vinuesa, Saleh Rezaeiravesh","submitted_at":"2020-07-14T14:55:35Z","abstract_excerpt":"A framework is developed based on different uncertainty quantification (UQ) techniques in order to assess validation and verification (V&V) metrics in computational physics problems, in general, and computational fluid dynamics (CFD), in particular. The metrics include accuracy, sensitivity and robustness of the simulator's outputs with respect to uncertain inputs and computational parameters. These parameters are divided into two groups: based on the variation of the first group, a computer experiment is designed, the data of which may become uncertain due to the parameters of the second grou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07071","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/2007.07071/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":"2026-07-05T01:18:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Fla5Mz6C6CjjVwVRpH3QYN95uoBMBQQkADeW04uScvTEI6YjRb0gGNEOJqMtMaDn14DNJYd9eTbLJBU68VLBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:07:12.597008Z"},"content_sha256":"5ecc531e42d0843d4ec296ccb8cd0a9430d8949bf38422f16045dabf938d0139","schema_version":"1.0","event_id":"sha256:5ecc531e42d0843d4ec296ccb8cd0a9430d8949bf38422f16045dabf938d0139"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/bundle.json","state_url":"https://pith.science/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/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":"2026-07-07T08:07:12Z","links":{"resolver":"https://pith.science/pith/JW7VRN7DVN22QKFLPUNWAFQTVB","bundle":"https://pith.science/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/bundle.json","state":"https://pith.science/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JW7VRN7DVN22QKFLPUNWAFQTVB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:JW7VRN7DVN22QKFLPUNWAFQTVB","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":"6fd401741c9096e4daff9bcb90d6bcdfbc38df83d0fdf9ccad96e07470f4f2fb","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-07-14T14:55:35Z","title_canon_sha256":"b0db20384061f2c9866f4aa587a8c50acfe2095adb86352a922066fa2d762c0b"},"schema_version":"1.0","source":{"id":"2007.07071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07071","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07071v1","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07071","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_12","alias_value":"JW7VRN7DVN22","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_16","alias_value":"JW7VRN7DVN22QKFL","created_at":"2026-07-05T01:18:26Z"},{"alias_kind":"pith_short_8","alias_value":"JW7VRN7D","created_at":"2026-07-05T01:18:26Z"}],"graph_snapshots":[{"event_id":"sha256:5ecc531e42d0843d4ec296ccb8cd0a9430d8949bf38422f16045dabf938d0139","target":"graph","created_at":"2026-07-05T01:18:26Z","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/2007.07071/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A framework is developed based on different uncertainty quantification (UQ) techniques in order to assess validation and verification (V&V) metrics in computational physics problems, in general, and computational fluid dynamics (CFD), in particular. The metrics include accuracy, sensitivity and robustness of the simulator's outputs with respect to uncertain inputs and computational parameters. These parameters are divided into two groups: based on the variation of the first group, a computer experiment is designed, the data of which may become uncertain due to the parameters of the second grou","authors_text":"Philipp Schlatter, Ricardo Vinuesa, Saleh Rezaeiravesh","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-07-14T14:55:35Z","title":"An Uncertainty-Quantification Framework for Assessing Accuracy, Sensitivity, and Robustness in Computational Fluid Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07071","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":"sha256:5a6a992ad8ec79190a28430e8b4f8c402777a5b5c466c519147fc5f4f76543f6","target":"record","created_at":"2026-07-05T01:18:26Z","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":"6fd401741c9096e4daff9bcb90d6bcdfbc38df83d0fdf9ccad96e07470f4f2fb","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2020-07-14T14:55:35Z","title_canon_sha256":"b0db20384061f2c9866f4aa587a8c50acfe2095adb86352a922066fa2d762c0b"},"schema_version":"1.0","source":{"id":"2007.07071","kind":"arxiv","version":1}},"canonical_sha256":"4dbf58b7e3ab75a828ab7d1b601613a855d1a0bd08865c34455c68a452c4bcff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4dbf58b7e3ab75a828ab7d1b601613a855d1a0bd08865c34455c68a452c4bcff","first_computed_at":"2026-07-05T01:18:26.425464Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:26.425464Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SQZu3t08TaxWu/e0v5aoHFcfabnpXT+frThUNMhcMV5p034NHYlhbesPdNFpBWMHS9y8u7PeJtJCbhpAppEZAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:26.425807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.07071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a6a992ad8ec79190a28430e8b4f8c402777a5b5c466c519147fc5f4f76543f6","sha256:5ecc531e42d0843d4ec296ccb8cd0a9430d8949bf38422f16045dabf938d0139"],"state_sha256":"9d2e5fe2193276dc7a2fe0b4b44b196faeac2c8830f8abdba3b6d84860821af2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ekFLGGYe62sZ+N61TUchttRVE7QG4B3hNLHodTbKsevzXVejy5yVf+nh8aYYQbe01CHPiSBkakR5BPLQ3Mw2DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:07:12.599027Z","bundle_sha256":"400995a5a21aa4ef7782cf03567994328546f43d0049d7e8aacce038f9f0c845"}}