{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:RTBSSEOYQ3RYA6SNFHWN64W6N7","short_pith_number":"pith:RTBSSEOY","canonical_record":{"source":{"id":"1802.01252","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-02-05T03:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"cf3c336ad459b63c5327190e582feeb26cb638fd2590c24c4c1b729af2b4e91a","abstract_canon_sha256":"f8526e86a302a51b8aeb2c6314f6bbd49c10078273e2dd3dbe5c17074b9422f8"},"schema_version":"1.0"},"canonical_sha256":"8cc32911d886e3807a4d29ecdf72de6fda1e98ed8926e93bcae2e38d3a62545b","source":{"kind":"arxiv","id":"1802.01252","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01252","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01252v1","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01252","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"pith_short_12","alias_value":"RTBSSEOYQ3RY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RTBSSEOYQ3RYA6SN","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RTBSSEOY","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:RTBSSEOYQ3RYA6SNFHWN64W6N7","target":"record","payload":{"canonical_record":{"source":{"id":"1802.01252","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-02-05T03:24:04Z","cross_cats_sorted":[],"title_canon_sha256":"cf3c336ad459b63c5327190e582feeb26cb638fd2590c24c4c1b729af2b4e91a","abstract_canon_sha256":"f8526e86a302a51b8aeb2c6314f6bbd49c10078273e2dd3dbe5c17074b9422f8"},"schema_version":"1.0"},"canonical_sha256":"8cc32911d886e3807a4d29ecdf72de6fda1e98ed8926e93bcae2e38d3a62545b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:27.106139Z","signature_b64":"r4cwxfa6kvFAOdU4zSCIuHBKWMlBcUfpgwXhHCYnFC/+2I0cZWMLAn08i+cfmkJQRz+oGQujLAAa7EShg6HTCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8cc32911d886e3807a4d29ecdf72de6fda1e98ed8926e93bcae2e38d3a62545b","last_reissued_at":"2026-05-18T00:08:27.105598Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:27.105598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.01252","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":"2026-05-18T00:08:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kAAY39C8exiiYWynllEAhantPS++PzYf2EI+yk8PpEZ4Qo7YenezJgkujaKJ40DrGtp0PANdtaquKHv3rRhUDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:39:23.558362Z"},"content_sha256":"c49822461ed01e27e2ea26df691036c5c78a709ce07307d94baf496a6dfca993","schema_version":"1.0","event_id":"sha256:c49822461ed01e27e2ea26df691036c5c78a709ce07307d94baf496a6dfca993"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:RTBSSEOYQ3RYA6SNFHWN64W6N7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Jet mixing optimization using machine learning control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Bernd R. Noack, Fan Dewei, Ruiying Li, Yu Zhou, Zhi Wu","submitted_at":"2018-02-05T03:24:04Z","abstract_excerpt":"We experimentally optimize mixing of a turbulent round jet using machine learning control (MLC) following Li et al (2017). The jet is manipulated with one unsteady minijet blowing in wall-normal direction close to the nozzle exit. The flow is monitored with two hotwire sensors. The first sensor is positioned on the centerline 5 jet diameters downstream of the nozzle exit, i.e. the end of the potential core, while the second is located 3 jet diameters downstream and displaced towards the shear-layer. The mixing performance is monitored with mean velocity at the first sensor. A reduction of this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01252","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":"2026-05-18T00:08:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l6vPPT/nh90HM7dPdWsdnBp85N8k4UFC1xj1a66fTk6zLwXcCcBBWCfiFeR3qcAoOx+GanfvcSgsne+7i2dBBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:39:23.558718Z"},"content_sha256":"e98105b07204538628a6c7f68ae49e90ee62e633ffee99cdfe4c29c5c45dca55","schema_version":"1.0","event_id":"sha256:e98105b07204538628a6c7f68ae49e90ee62e633ffee99cdfe4c29c5c45dca55"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/bundle.json","state_url":"https://pith.science/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/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":"2026-06-02T22:39:23Z","links":{"resolver":"https://pith.science/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7","bundle":"https://pith.science/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/bundle.json","state":"https://pith.science/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RTBSSEOYQ3RYA6SNFHWN64W6N7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RTBSSEOYQ3RYA6SNFHWN64W6N7","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":"f8526e86a302a51b8aeb2c6314f6bbd49c10078273e2dd3dbe5c17074b9422f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-02-05T03:24:04Z","title_canon_sha256":"cf3c336ad459b63c5327190e582feeb26cb638fd2590c24c4c1b729af2b4e91a"},"schema_version":"1.0","source":{"id":"1802.01252","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01252","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01252v1","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01252","created_at":"2026-05-18T00:08:27Z"},{"alias_kind":"pith_short_12","alias_value":"RTBSSEOYQ3RY","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RTBSSEOYQ3RYA6SN","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RTBSSEOY","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:e98105b07204538628a6c7f68ae49e90ee62e633ffee99cdfe4c29c5c45dca55","target":"graph","created_at":"2026-05-18T00:08:27Z","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 experimentally optimize mixing of a turbulent round jet using machine learning control (MLC) following Li et al (2017). The jet is manipulated with one unsteady minijet blowing in wall-normal direction close to the nozzle exit. The flow is monitored with two hotwire sensors. The first sensor is positioned on the centerline 5 jet diameters downstream of the nozzle exit, i.e. the end of the potential core, while the second is located 3 jet diameters downstream and displaced towards the shear-layer. The mixing performance is monitored with mean velocity at the first sensor. A reduction of this","authors_text":"Bernd R. Noack, Fan Dewei, Ruiying Li, Yu Zhou, Zhi Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-02-05T03:24:04Z","title":"Jet mixing optimization using machine learning control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01252","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:c49822461ed01e27e2ea26df691036c5c78a709ce07307d94baf496a6dfca993","target":"record","created_at":"2026-05-18T00:08:27Z","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":"f8526e86a302a51b8aeb2c6314f6bbd49c10078273e2dd3dbe5c17074b9422f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-02-05T03:24:04Z","title_canon_sha256":"cf3c336ad459b63c5327190e582feeb26cb638fd2590c24c4c1b729af2b4e91a"},"schema_version":"1.0","source":{"id":"1802.01252","kind":"arxiv","version":1}},"canonical_sha256":"8cc32911d886e3807a4d29ecdf72de6fda1e98ed8926e93bcae2e38d3a62545b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8cc32911d886e3807a4d29ecdf72de6fda1e98ed8926e93bcae2e38d3a62545b","first_computed_at":"2026-05-18T00:08:27.105598Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:27.105598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r4cwxfa6kvFAOdU4zSCIuHBKWMlBcUfpgwXhHCYnFC/+2I0cZWMLAn08i+cfmkJQRz+oGQujLAAa7EShg6HTCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:27.106139Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01252","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c49822461ed01e27e2ea26df691036c5c78a709ce07307d94baf496a6dfca993","sha256:e98105b07204538628a6c7f68ae49e90ee62e633ffee99cdfe4c29c5c45dca55"],"state_sha256":"feaaf7f710dbb226d8ccc3580e2109061436160c9e73739349d732823c8f4283"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GYsiW2lLdlGmGirLd3oaYel//Ad90MqRLDOJMla32u0aWAZamKx/b3pbh4ypY/mL71eQE0XAfVPjiNtlVfA0Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:39:23.560670Z","bundle_sha256":"fea238209edefdea0eafce90a7b22ecb2efe2295796bbad259fa343395bb6589"}}