{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3ABRZAALAC6URZXXUHBHSSX7MR","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":"7fdcac7db51b242f85b5e5d0cc7c1be801542e2966939048ef13eb3f8320c0dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-25T08:41:42Z","title_canon_sha256":"1e0e5710c219848cd71361cd229ad7e19e835e122e5e6a4ea085455cafd29323"},"schema_version":"1.0","source":{"id":"1411.6764","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6764","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6764v1","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6764","created_at":"2026-05-18T02:32:47Z"},{"alias_kind":"pith_short_12","alias_value":"3ABRZAALAC6U","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3ABRZAALAC6URZXX","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3ABRZAAL","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:fc79cecadec0a62dc078b9bfc6bc7f77ffeb033ccbed4720972801f9b24304fd","target":"graph","created_at":"2026-05-18T02:32:47Z","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":"Insects and birds are often faced by opposing requirements for agile and stable flight. Here, we explore the interplay between aerodynamic effort, maneuverability, and stability in a model system that consists of a $\\Lambda$-shaped flyer hovering in a vertically oscillating airflow. We determine effective conditions that lead to periodic hovering in terms of two parameters: the flyer's shape (opening angle) and the effort (flow acceleration) needed to keep the flyer aloft. We find optimal shapes that minimize effort. We then examine hovering stability and observe a transition from unstable, ye","authors_text":"Eva Kanso, Monika Nitsche, Yangyang Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-25T08:41:42Z","title":"Stability versus Maneuverability in Hovering Flight"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6764","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":"sha256:7a6ff3d3a4c6e902db9a183fdeae38e25f725a6e64a050f96f29c5e78c8944e5","target":"record","created_at":"2026-05-18T02:32:47Z","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":"7fdcac7db51b242f85b5e5d0cc7c1be801542e2966939048ef13eb3f8320c0dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-25T08:41:42Z","title_canon_sha256":"1e0e5710c219848cd71361cd229ad7e19e835e122e5e6a4ea085455cafd29323"},"schema_version":"1.0","source":{"id":"1411.6764","kind":"arxiv","version":1}},"canonical_sha256":"d8031c800b00bd48e6f7a1c2794aff6466382f290c3f2cc0b869629adbfc2aab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8031c800b00bd48e6f7a1c2794aff6466382f290c3f2cc0b869629adbfc2aab","first_computed_at":"2026-05-18T02:32:47.396561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:47.396561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KwGpR5GNKdEfRf6qDU9O8u83hCVwVWm+F1bmPOaYlXWk3u99kWFwS2/HNkyCzlaljSKqKjvtQUQcC+KvchBWCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:47.397113Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.6764","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a6ff3d3a4c6e902db9a183fdeae38e25f725a6e64a050f96f29c5e78c8944e5","sha256:fc79cecadec0a62dc078b9bfc6bc7f77ffeb033ccbed4720972801f9b24304fd"],"state_sha256":"2d2b8f9430a56e11b5597e6a54943dc94cb63c99f9ea12fcb098628a4a6c856f"}