{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KOA4EFSHTP73QTR5IVGGLHG64U","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":"677104404ff108b0845610608fcbb0eeb186c405b6aac4753cc5e44290a3f594","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-12T09:35:08Z","title_canon_sha256":"638c22582da15c10a50b6747f47ea8a8bbb298af71ddbe0f2a1c97a2e09163c7"},"schema_version":"1.0","source":{"id":"1912.06484","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.06484","created_at":"2026-07-05T00:26:01Z"},{"alias_kind":"arxiv_version","alias_value":"1912.06484v1","created_at":"2026-07-05T00:26:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.06484","created_at":"2026-07-05T00:26:01Z"},{"alias_kind":"pith_short_12","alias_value":"KOA4EFSHTP73","created_at":"2026-07-05T00:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"KOA4EFSHTP73QTR5","created_at":"2026-07-05T00:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"KOA4EFSH","created_at":"2026-07-05T00:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:a5acec21bbdfc7df4d9a07796551d48a4e38c35ca6c36931c94305020695b017","target":"graph","created_at":"2026-07-05T00:26:01Z","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/1912.06484/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The dynamics of an organ pipe's mouth region has been studied by numerical simulations. The investigations presented here were carried out by solving the compressible Navier-Stokes equations under suitable initial and boundary conditions using parts of the open source C++ toolbox OpenFOAM. The focus of the study is on the examination of the velocity field close to the jet. The components of the velocity field sampled at a cross-section spanning the mouth were analyzed by using methods of coarse-graining. It is shown that the dynamics of the sampled velocity field can be separated into two frac","authors_text":"Jost Leonhardt Fischer, Markus Abel, Rolf Bader","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-12T09:35:08Z","title":"On the Dynamics of the Flow and the Sound Field of an Organ Pipes's Mouth Region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.06484","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:d536671dfdd143daa9ad6586a03917f91cae82c17ebfec9d813b72b6cc0f51c8","target":"record","created_at":"2026-07-05T00:26:01Z","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":"677104404ff108b0845610608fcbb0eeb186c405b6aac4753cc5e44290a3f594","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2019-12-12T09:35:08Z","title_canon_sha256":"638c22582da15c10a50b6747f47ea8a8bbb298af71ddbe0f2a1c97a2e09163c7"},"schema_version":"1.0","source":{"id":"1912.06484","kind":"arxiv","version":1}},"canonical_sha256":"5381c216479bffb84e3d454c659cdee51687d0921bd7c8219cd15ca0371592d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5381c216479bffb84e3d454c659cdee51687d0921bd7c8219cd15ca0371592d2","first_computed_at":"2026-07-05T00:26:01.403656Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:26:01.403656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mSQPYzqQW4Ex5qGh2fRpZvKsdQIzV+YI1m0uupZ/cdrNrcN7Dv8ukYMF5jqPIsOoefnrsUXfFU/kcOlV2VJxCg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:26:01.404057Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.06484","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d536671dfdd143daa9ad6586a03917f91cae82c17ebfec9d813b72b6cc0f51c8","sha256:a5acec21bbdfc7df4d9a07796551d48a4e38c35ca6c36931c94305020695b017"],"state_sha256":"e20d93f2e905ff1841bf415209cd478b82e5f4b617e4436764e2fbf46703c638"}