{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:5GZ4QNG5QWRH7BMD7HT4GM3QVU","short_pith_number":"pith:5GZ4QNG5","canonical_record":{"source":{"id":"1612.05826","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-12-17T21:09:07Z","cross_cats_sorted":[],"title_canon_sha256":"024f1a62300f29efeae56647def271a6a34300cf78b9d0ac2876c391dae19d3a","abstract_canon_sha256":"0cf78add449483073f8863b028a00ab815d67ce995191c6dec3574864cd4d4f4"},"schema_version":"1.0"},"canonical_sha256":"e9b3c834dd85a27f8583f9e7c33370ad152ba40d93d6913cd331b80a61167944","source":{"kind":"arxiv","id":"1612.05826","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05826","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05826v1","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05826","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"pith_short_12","alias_value":"5GZ4QNG5QWRH","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5GZ4QNG5QWRH7BMD","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5GZ4QNG5","created_at":"2026-05-18T12:30:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:5GZ4QNG5QWRH7BMD7HT4GM3QVU","target":"record","payload":{"canonical_record":{"source":{"id":"1612.05826","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-12-17T21:09:07Z","cross_cats_sorted":[],"title_canon_sha256":"024f1a62300f29efeae56647def271a6a34300cf78b9d0ac2876c391dae19d3a","abstract_canon_sha256":"0cf78add449483073f8863b028a00ab815d67ce995191c6dec3574864cd4d4f4"},"schema_version":"1.0"},"canonical_sha256":"e9b3c834dd85a27f8583f9e7c33370ad152ba40d93d6913cd331b80a61167944","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:29.170734Z","signature_b64":"amPRqpKFjq4FuQdCXaOSvDhR0rh4jshqpdRjNlqPhkVEis0FAgImo+EifW3UrqNFZjuSvzsy+oBqpGL0fROfDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9b3c834dd85a27f8583f9e7c33370ad152ba40d93d6913cd331b80a61167944","last_reissued_at":"2026-05-18T00:14:29.170017Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:29.170017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.05826","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":"2026-05-18T00:14:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YR01sHC5LbPfL0mjYYf9R8ZJPsFmJQX5yo9dHHUVHNr//U66zLaIAP/FN4SWShcRHC0QwfuLQJwSYZ9n4PUdDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T04:30:39.180500Z"},"content_sha256":"57b1780b4f53c5832c92cb2b7e4bf7e3a8620db0e583ea3ea1d2a060e6afbab7","schema_version":"1.0","event_id":"sha256:57b1780b4f53c5832c92cb2b7e4bf7e3a8620db0e583ea3ea1d2a060e6afbab7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:5GZ4QNG5QWRH7BMD7HT4GM3QVU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust and fast online identification of streamwise vortices properties for closed-loop control purposes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Alex Liberzon, Caroline Braud","submitted_at":"2016-12-17T21:09:07Z","abstract_excerpt":"We propose to combine the active vortex generators with the particle image velocimetry (PIV) measurements and post-processing streamwise vortex characterization algorithms into a feedback based closed-loop control system for wind turbine applications. We develop two vortex identification and characterization methods that use PIV realizations for the purpose of a real-time (online or on-the-fly) feedback-based control. Both methods can extract centers and strengths of streamwise vortices generated behind active vortex generators in a turbulent boundary layer flow, and we show how to integrate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05826","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":""},"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":"2026-05-18T00:14:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+G+gmVnrdDHxZy3SsE4h9BW+pe95fevtQ7YFDW1YScob+RQ1jdGPvb5JBMV4inVV+gRbnhPF8gyjR4WM32tECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T04:30:39.180850Z"},"content_sha256":"1e1620c8e4530462404f940d75ccf2ffcddeea6686256c2fc96de7dc62bb3b8f","schema_version":"1.0","event_id":"sha256:1e1620c8e4530462404f940d75ccf2ffcddeea6686256c2fc96de7dc62bb3b8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/bundle.json","state_url":"https://pith.science/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/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":"2026-07-02T04:30:39Z","links":{"resolver":"https://pith.science/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU","bundle":"https://pith.science/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/bundle.json","state":"https://pith.science/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5GZ4QNG5QWRH7BMD7HT4GM3QVU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5GZ4QNG5QWRH7BMD7HT4GM3QVU","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":"0cf78add449483073f8863b028a00ab815d67ce995191c6dec3574864cd4d4f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-12-17T21:09:07Z","title_canon_sha256":"024f1a62300f29efeae56647def271a6a34300cf78b9d0ac2876c391dae19d3a"},"schema_version":"1.0","source":{"id":"1612.05826","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05826","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05826v1","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05826","created_at":"2026-05-18T00:14:29Z"},{"alias_kind":"pith_short_12","alias_value":"5GZ4QNG5QWRH","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5GZ4QNG5QWRH7BMD","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5GZ4QNG5","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:1e1620c8e4530462404f940d75ccf2ffcddeea6686256c2fc96de7dc62bb3b8f","target":"graph","created_at":"2026-05-18T00:14:29Z","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"},"paper":{"abstract_excerpt":"We propose to combine the active vortex generators with the particle image velocimetry (PIV) measurements and post-processing streamwise vortex characterization algorithms into a feedback based closed-loop control system for wind turbine applications. We develop two vortex identification and characterization methods that use PIV realizations for the purpose of a real-time (online or on-the-fly) feedback-based control. Both methods can extract centers and strengths of streamwise vortices generated behind active vortex generators in a turbulent boundary layer flow, and we show how to integrate t","authors_text":"Alex Liberzon, Caroline Braud","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-12-17T21:09:07Z","title":"Robust and fast online identification of streamwise vortices properties for closed-loop control purposes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05826","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":"sha256:57b1780b4f53c5832c92cb2b7e4bf7e3a8620db0e583ea3ea1d2a060e6afbab7","target":"record","created_at":"2026-05-18T00:14:29Z","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":"0cf78add449483073f8863b028a00ab815d67ce995191c6dec3574864cd4d4f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2016-12-17T21:09:07Z","title_canon_sha256":"024f1a62300f29efeae56647def271a6a34300cf78b9d0ac2876c391dae19d3a"},"schema_version":"1.0","source":{"id":"1612.05826","kind":"arxiv","version":1}},"canonical_sha256":"e9b3c834dd85a27f8583f9e7c33370ad152ba40d93d6913cd331b80a61167944","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9b3c834dd85a27f8583f9e7c33370ad152ba40d93d6913cd331b80a61167944","first_computed_at":"2026-05-18T00:14:29.170017Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:29.170017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"amPRqpKFjq4FuQdCXaOSvDhR0rh4jshqpdRjNlqPhkVEis0FAgImo+EifW3UrqNFZjuSvzsy+oBqpGL0fROfDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:29.170734Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.05826","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57b1780b4f53c5832c92cb2b7e4bf7e3a8620db0e583ea3ea1d2a060e6afbab7","sha256:1e1620c8e4530462404f940d75ccf2ffcddeea6686256c2fc96de7dc62bb3b8f"],"state_sha256":"8d2a0863ec6cf3e9aea9f6d4ce8aa8ab80e9a06734916982237fd0beeaf52fe5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zrcYOy9TsrTvqrNtJEoU/oy9lvNgSLDBcHQ8Cs1JW+ojuGK0QnQcoqIjnobFA5AGmp7+S9VmloNKEykp8kFvAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T04:30:39.182918Z","bundle_sha256":"e00973a140af80ba1d8add3ceb8ea2da496c91edb6f8f973071ca71b973c769e"}}