{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:IMTZU3WYNWOZ6NWY4AMG6MBREI","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":"e6c849305f9a34534a4d29ebc4a28164a4672c11afd99ed2d4401be224b0d780","cross_cats_sorted":["astro-ph.EP","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-08T15:09:34Z","title_canon_sha256":"705864f30496010f9832a71200d57833276ab4ef1b9d16f129b83d3515996823"},"schema_version":"1.0","source":{"id":"1609.02459","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.02459","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"1609.02459v2","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.02459","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"IMTZU3WYNWOZ","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"IMTZU3WYNWOZ6NWY","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"IMTZU3WY","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:b74efe86182bea5a07a24475910d27ab4f85a1eb8d2e729e6b7307c69acf38ab","target":"graph","created_at":"2026-05-18T00:36:03Z","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 conduct a linear stability calculation of an ideal Keplerian flow on which a sinusoidal zonal flow is imposed. The analysis uses the shearing sheet model and is carried out both in isothermal and adiabatic conditions, with and without self-gravity (SG). In the non-SG regime a structure in the potential vorticity (PV) leads to a non-axisymmetric Kelvin-Helmholtz (KH) instability; in the short-wavelength limit its growth rate agrees with the incompressible calculation by Lithwick (2007), which only considers perturbations elongated in the streamwise direction. The instability's strength is an","authors_text":"G.I. Ogilvie, R. Vanon","cross_cats":["astro-ph.EP","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-08T15:09:34Z","title":"Non-axisymmetric instabilities in discs with imposed zonal flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.02459","kind":"arxiv","version":2},"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":"sha256:0532a41507ebca36599a6f5a835f97001803c19811fe4ed798a3cd3d663ce48a","target":"record","created_at":"2026-05-18T00:36:03Z","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":"e6c849305f9a34534a4d29ebc4a28164a4672c11afd99ed2d4401be224b0d780","cross_cats_sorted":["astro-ph.EP","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-08T15:09:34Z","title_canon_sha256":"705864f30496010f9832a71200d57833276ab4ef1b9d16f129b83d3515996823"},"schema_version":"1.0","source":{"id":"1609.02459","kind":"arxiv","version":2}},"canonical_sha256":"43279a6ed86d9d9f36d8e0186f3031220f67699c0d013956af5341ed1d9d5c76","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43279a6ed86d9d9f36d8e0186f3031220f67699c0d013956af5341ed1d9d5c76","first_computed_at":"2026-05-18T00:36:03.851552Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:03.851552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eR+Pq96Phs7CY62mwjPcNTWoIy7/IKMhd3TXpyqOn0udY19D5kP8OgbSeqKeUNqgC154+XY3x+jNWjxNsOQCBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:03.852137Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.02459","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0532a41507ebca36599a6f5a835f97001803c19811fe4ed798a3cd3d663ce48a","sha256:b74efe86182bea5a07a24475910d27ab4f85a1eb8d2e729e6b7307c69acf38ab"],"state_sha256":"6cfb3d733c1bd1a13aee125110e3d45a6edc92e9cf3c8ae681fb6732282e3b40"}