{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IPJUGO3ZTBNCIFVD6C6AZ5AGUF","short_pith_number":"pith:IPJUGO3Z","canonical_record":{"source":{"id":"1907.01664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-02T22:19:45Z","cross_cats_sorted":[],"title_canon_sha256":"e0f734acbb27155f6a6ee787503cecf2d4b9c25f4748a84bc000635af4693458","abstract_canon_sha256":"d19c594dd6bcd331ab783485554aab63bfbd1cfaab4d13a261de2b3f67efc522"},"schema_version":"1.0"},"canonical_sha256":"43d3433b79985a2416a3f0bc0cf406a164ece1a5005bbc289c3a8bf53dbf7a0a","source":{"kind":"arxiv","id":"1907.01664","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01664","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01664v1","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01664","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"IPJUGO3ZTBNC","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IPJUGO3ZTBNCIFVD","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IPJUGO3Z","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IPJUGO3ZTBNCIFVD6C6AZ5AGUF","target":"record","payload":{"canonical_record":{"source":{"id":"1907.01664","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-02T22:19:45Z","cross_cats_sorted":[],"title_canon_sha256":"e0f734acbb27155f6a6ee787503cecf2d4b9c25f4748a84bc000635af4693458","abstract_canon_sha256":"d19c594dd6bcd331ab783485554aab63bfbd1cfaab4d13a261de2b3f67efc522"},"schema_version":"1.0"},"canonical_sha256":"43d3433b79985a2416a3f0bc0cf406a164ece1a5005bbc289c3a8bf53dbf7a0a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:35.579231Z","signature_b64":"zr3gydu/5BGj8JIX8NA/wkHli5Qtn7sCxHVksJI1XsGNfSuzrAkCsY39zSMPnssX+cmK7R72mAFjQEBW7HrhDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43d3433b79985a2416a3f0bc0cf406a164ece1a5005bbc289c3a8bf53dbf7a0a","last_reissued_at":"2026-05-17T23:41:35.578672Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:35.578672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.01664","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":"2026-05-17T23:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HxrENVOZ677Scjjo32E88wUHAEG8F5jE8AJbuns1R5WA9TVJ3l7kywuS5G9v3PwNpGkmwhj0y71HiMjx8GcxCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T19:15:59.441056Z"},"content_sha256":"7930c14d3926bcfe7f0e2153cd93edc41b4b4b91fe2fb8079af404723c180ece","schema_version":"1.0","event_id":"sha256:7930c14d3926bcfe7f0e2153cd93edc41b4b4b91fe2fb8079af404723c180ece"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IPJUGO3ZTBNCIFVD6C6AZ5AGUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Control-oriented model reduction for minimizing transient energy growth in shear flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Aniketh Kalur, Maziar S. Hemati","submitted_at":"2019-07-02T22:19:45Z","abstract_excerpt":"A linear non-modal mechanism for transient amplification of perturbation energy is known to trigger sub-critical transition to turbulence in many shear flows. Feedback control strategies for minimizing this transient energy growth can be formulated as convex optimization problems based on linear matrix inequalities. Unfortunately, solving the requisite linear matrix inequality problem can be computationally prohibitive within the context of high-dimensional fluid flows. In this work, we investigate the utility of control-oriented reduced-order models to facilitate the design of feedback flow c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01664","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":"2026-05-17T23:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MeELKaAM3jXElnCEgVVq4tPxPje83jXObL/gWqTI6UCwFWUnDQqoQekBkP8KmywMjRtX+nyFY5/dfn3e+wq7BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T19:15:59.441777Z"},"content_sha256":"c878d0a1edb884db37f31f5d80fa58248899ee81648f964b53334068750ab102","schema_version":"1.0","event_id":"sha256:c878d0a1edb884db37f31f5d80fa58248899ee81648f964b53334068750ab102"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/bundle.json","state_url":"https://pith.science/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/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":"2026-06-07T19:15:59Z","links":{"resolver":"https://pith.science/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF","bundle":"https://pith.science/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/bundle.json","state":"https://pith.science/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IPJUGO3ZTBNCIFVD6C6AZ5AGUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IPJUGO3ZTBNCIFVD6C6AZ5AGUF","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":"d19c594dd6bcd331ab783485554aab63bfbd1cfaab4d13a261de2b3f67efc522","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-02T22:19:45Z","title_canon_sha256":"e0f734acbb27155f6a6ee787503cecf2d4b9c25f4748a84bc000635af4693458"},"schema_version":"1.0","source":{"id":"1907.01664","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.01664","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1907.01664v1","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.01664","created_at":"2026-05-17T23:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"IPJUGO3ZTBNC","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IPJUGO3ZTBNCIFVD","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IPJUGO3Z","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:c878d0a1edb884db37f31f5d80fa58248899ee81648f964b53334068750ab102","target":"graph","created_at":"2026-05-17T23:41:35Z","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":"A linear non-modal mechanism for transient amplification of perturbation energy is known to trigger sub-critical transition to turbulence in many shear flows. Feedback control strategies for minimizing this transient energy growth can be formulated as convex optimization problems based on linear matrix inequalities. Unfortunately, solving the requisite linear matrix inequality problem can be computationally prohibitive within the context of high-dimensional fluid flows. In this work, we investigate the utility of control-oriented reduced-order models to facilitate the design of feedback flow c","authors_text":"Aniketh Kalur, Maziar S. Hemati","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-02T22:19:45Z","title":"Control-oriented model reduction for minimizing transient energy growth in shear flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.01664","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":"sha256:7930c14d3926bcfe7f0e2153cd93edc41b4b4b91fe2fb8079af404723c180ece","target":"record","created_at":"2026-05-17T23:41:35Z","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":"d19c594dd6bcd331ab783485554aab63bfbd1cfaab4d13a261de2b3f67efc522","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-07-02T22:19:45Z","title_canon_sha256":"e0f734acbb27155f6a6ee787503cecf2d4b9c25f4748a84bc000635af4693458"},"schema_version":"1.0","source":{"id":"1907.01664","kind":"arxiv","version":1}},"canonical_sha256":"43d3433b79985a2416a3f0bc0cf406a164ece1a5005bbc289c3a8bf53dbf7a0a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43d3433b79985a2416a3f0bc0cf406a164ece1a5005bbc289c3a8bf53dbf7a0a","first_computed_at":"2026-05-17T23:41:35.578672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:35.578672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zr3gydu/5BGj8JIX8NA/wkHli5Qtn7sCxHVksJI1XsGNfSuzrAkCsY39zSMPnssX+cmK7R72mAFjQEBW7HrhDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:35.579231Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.01664","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7930c14d3926bcfe7f0e2153cd93edc41b4b4b91fe2fb8079af404723c180ece","sha256:c878d0a1edb884db37f31f5d80fa58248899ee81648f964b53334068750ab102"],"state_sha256":"d0d2b5d4701df7d753f203b5e1bafff9912e886356ced3de8e64e059a29ef635"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MP2BbrfUh/F3Xvow6KsIk0/LR5pZ/MQ3Sa4kzqo6u84GWOy/BMQYwoBslqbQMBjvHWsTXfPJji1lXAP5Yb6LDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T19:15:59.445461Z","bundle_sha256":"7147daa0eef219eb2b896b4992fbc605102cad48e03cad70f58176e894ee3aa8"}}