{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WHETZWIVH2D3U4BI6MTKQ77AKF","short_pith_number":"pith:WHETZWIV","canonical_record":{"source":{"id":"2512.09523","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-12-10T11:01:12Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"6117d8229be7340508e0969f9fa7feee972ca76c28ae4dc60fa23c0fcf984db1","abstract_canon_sha256":"634d2691d23904d7cf5830455ebb146fb2c9ee180be8eb0b04489aed92c19611"},"schema_version":"1.0"},"canonical_sha256":"b1c93cd9153e87ba7028f326a87fe05173db4c6bca9fae0f129079cf0defc55e","source":{"kind":"arxiv","id":"2512.09523","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.09523","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"arxiv_version","alias_value":"2512.09523v2","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.09523","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_12","alias_value":"WHETZWIVH2D3","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_16","alias_value":"WHETZWIVH2D3U4BI","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_8","alias_value":"WHETZWIV","created_at":"2026-06-23T01:12:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WHETZWIVH2D3U4BI6MTKQ77AKF","target":"record","payload":{"canonical_record":{"source":{"id":"2512.09523","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-12-10T11:01:12Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"6117d8229be7340508e0969f9fa7feee972ca76c28ae4dc60fa23c0fcf984db1","abstract_canon_sha256":"634d2691d23904d7cf5830455ebb146fb2c9ee180be8eb0b04489aed92c19611"},"schema_version":"1.0"},"canonical_sha256":"b1c93cd9153e87ba7028f326a87fe05173db4c6bca9fae0f129079cf0defc55e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T01:12:50.593659Z","signature_b64":"DBfOEV+0nuf16/Rt6f3D9t3TQwjgv6VUCWDMli/jNBx9s/Qst4PLx2fNX1OTtcUMj3dMi5irfMdwx65s8DoXDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1c93cd9153e87ba7028f326a87fe05173db4c6bca9fae0f129079cf0defc55e","last_reissued_at":"2026-06-23T01:12:50.593105Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T01:12:50.593105Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.09523","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":"2026-06-23T01:12:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f9Ms5pYZmIf8Bsrj3l/S7AcXk1bnjNBFYiKyrPcmNr5JjkNl+5UziHGBNaOO4nN4wCLN56Ul3HQSzbl09ay7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:59:11.341968Z"},"content_sha256":"eed2cfdc685a69538504a62be46fd5f8e3bd00ef260e3b60ce2beb2fe3fa868b","schema_version":"1.0","event_id":"sha256:eed2cfdc685a69538504a62be46fd5f8e3bd00ef260e3b60ce2beb2fe3fa868b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WHETZWIVH2D3U4BI6MTKQ77AKF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data-driven time-dependent bases for turbulent airfoil wake-extreme gust interactions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.comp-ph","authors_text":"Kai Fukami, Shaghayegh Zamani Ashtiani","submitted_at":"2025-12-10T11:01:12Z","abstract_excerpt":"We analyze interactions between turbulent airfoil wakes and extreme gusts using a data-driven framework with time-dependent bases. The current approach represents each snapshot with time-varying bases consisting of two-dimensional in-plane modes and one-dimensional spanwise modes, together with a reduced covariance matrix. By deriving closed-form evolution equations, we advance these components using a small rolling window, eliminating the need for full-history storage. Applied to extreme vortex gust-airfoil interactions at Re=5000, we reveal that the first in-plane mode dominates before impin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.09523","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/2512.09523/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":"2026-06-23T01:12:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lLBbfkkrVAVFcaV9dPRlefwHebr40cuf9fETzfYcJQv40JjGJWM7BHjBbiMJelbHthh0P6E0a3aRAO/zKIjeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:59:11.342612Z"},"content_sha256":"c6f14c97b2874f9a3acf35fa1c61b31e78173ffd139feced9e74ee17fe5262be","schema_version":"1.0","event_id":"sha256:c6f14c97b2874f9a3acf35fa1c61b31e78173ffd139feced9e74ee17fe5262be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/bundle.json","state_url":"https://pith.science/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/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":"2026-07-05T12:59:11Z","links":{"resolver":"https://pith.science/pith/WHETZWIVH2D3U4BI6MTKQ77AKF","bundle":"https://pith.science/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/bundle.json","state":"https://pith.science/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WHETZWIVH2D3U4BI6MTKQ77AKF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WHETZWIVH2D3U4BI6MTKQ77AKF","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":"634d2691d23904d7cf5830455ebb146fb2c9ee180be8eb0b04489aed92c19611","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-12-10T11:01:12Z","title_canon_sha256":"6117d8229be7340508e0969f9fa7feee972ca76c28ae4dc60fa23c0fcf984db1"},"schema_version":"1.0","source":{"id":"2512.09523","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.09523","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"arxiv_version","alias_value":"2512.09523v2","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.09523","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_12","alias_value":"WHETZWIVH2D3","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_16","alias_value":"WHETZWIVH2D3U4BI","created_at":"2026-06-23T01:12:50Z"},{"alias_kind":"pith_short_8","alias_value":"WHETZWIV","created_at":"2026-06-23T01:12:50Z"}],"graph_snapshots":[{"event_id":"sha256:c6f14c97b2874f9a3acf35fa1c61b31e78173ffd139feced9e74ee17fe5262be","target":"graph","created_at":"2026-06-23T01:12:50Z","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/2512.09523/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We analyze interactions between turbulent airfoil wakes and extreme gusts using a data-driven framework with time-dependent bases. The current approach represents each snapshot with time-varying bases consisting of two-dimensional in-plane modes and one-dimensional spanwise modes, together with a reduced covariance matrix. By deriving closed-form evolution equations, we advance these components using a small rolling window, eliminating the need for full-history storage. Applied to extreme vortex gust-airfoil interactions at Re=5000, we reveal that the first in-plane mode dominates before impin","authors_text":"Kai Fukami, Shaghayegh Zamani Ashtiani","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-12-10T11:01:12Z","title":"Data-driven time-dependent bases for turbulent airfoil wake-extreme gust interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.09523","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:eed2cfdc685a69538504a62be46fd5f8e3bd00ef260e3b60ce2beb2fe3fa868b","target":"record","created_at":"2026-06-23T01:12:50Z","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":"634d2691d23904d7cf5830455ebb146fb2c9ee180be8eb0b04489aed92c19611","cross_cats_sorted":["physics.flu-dyn"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2025-12-10T11:01:12Z","title_canon_sha256":"6117d8229be7340508e0969f9fa7feee972ca76c28ae4dc60fa23c0fcf984db1"},"schema_version":"1.0","source":{"id":"2512.09523","kind":"arxiv","version":2}},"canonical_sha256":"b1c93cd9153e87ba7028f326a87fe05173db4c6bca9fae0f129079cf0defc55e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1c93cd9153e87ba7028f326a87fe05173db4c6bca9fae0f129079cf0defc55e","first_computed_at":"2026-06-23T01:12:50.593105Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T01:12:50.593105Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DBfOEV+0nuf16/Rt6f3D9t3TQwjgv6VUCWDMli/jNBx9s/Qst4PLx2fNX1OTtcUMj3dMi5irfMdwx65s8DoXDA==","signature_status":"signed_v1","signed_at":"2026-06-23T01:12:50.593659Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.09523","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eed2cfdc685a69538504a62be46fd5f8e3bd00ef260e3b60ce2beb2fe3fa868b","sha256:c6f14c97b2874f9a3acf35fa1c61b31e78173ffd139feced9e74ee17fe5262be"],"state_sha256":"1046c6799b79d67cddda7da6fe8a760135dfff1cdc72890865e1c9d3a7281d62"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iDxOkbID7iqhubZzf6XppDL2XszQpHywH0bN001To15GXdVdi1/hxVdME8sbUcDdivn6/kDxZEg+a7s/GH/HCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T12:59:11.345619Z","bundle_sha256":"35eb1a91f9703f2e9d8da4ecfa1e1771b61528f2becde917824208f0670068ca"}}