{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:PTOLKYOFBMKAJQ7RCEDPSAUOY2","short_pith_number":"pith:PTOLKYOF","schema_version":"1.0","canonical_sha256":"7cdcb561c50b1404c3f11106f9028ec69d6373b2469bd67824951bfb385cdacc","source":{"kind":"arxiv","id":"0811.3937","version":2},"attestation_state":"computed","paper":{"title":"Zonal Flows and Long-Lived Axisymmetric Pressure Bumps in Magnetorotational Turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) CITA, (3) MPIA), Anders Johansen (1), Andrew Youdin (2), Hubert Klahr (3) ((1) Leiden Observatory, Leiden University","submitted_at":"2008-11-24T18:19:27Z","abstract_excerpt":"We study the behavior of magnetorotational turbulence in shearing box simulations with a radial and azimuthal extent up to ten scale heights. Maxwell and Reynolds stresses are found to increase by more than a factor two when increasing the box size beyond two scale heights in the radial direction. Further increase of the box size has little or no effect on the statistical properties of the turbulence. An inverse cascade excites magnetic field structures at the largest scales of the box. The corresponding 10% variation in the Maxwell stress launches a zonal flow of alternating sub- and super-Ke"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0811.3937","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-24T18:19:27Z","cross_cats_sorted":[],"title_canon_sha256":"8f11073bfc8cc57879f4b64881f5c8f39af48ed239f7235cde493247f44de53e","abstract_canon_sha256":"269e210bbae75e805e329922a2aaf11abc3eeb5bf50a120cb6bc7263f7df4e61"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:19:25.820798Z","signature_b64":"QTmVTHOCasjhNRIl+L+ZuJUXnYgeox494H8+clmuaAFpeu3KKpK02Zp+Z8iVvTVp7nBsWDCBQrnIT3/lEL7JDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cdcb561c50b1404c3f11106f9028ec69d6373b2469bd67824951bfb385cdacc","last_reissued_at":"2026-07-04T17:19:25.820375Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:19:25.820375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Zonal Flows and Long-Lived Axisymmetric Pressure Bumps in Magnetorotational Turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) CITA, (3) MPIA), Anders Johansen (1), Andrew Youdin (2), Hubert Klahr (3) ((1) Leiden Observatory, Leiden University","submitted_at":"2008-11-24T18:19:27Z","abstract_excerpt":"We study the behavior of magnetorotational turbulence in shearing box simulations with a radial and azimuthal extent up to ten scale heights. Maxwell and Reynolds stresses are found to increase by more than a factor two when increasing the box size beyond two scale heights in the radial direction. Further increase of the box size has little or no effect on the statistical properties of the turbulence. An inverse cascade excites magnetic field structures at the largest scales of the box. The corresponding 10% variation in the Maxwell stress launches a zonal flow of alternating sub- and super-Ke"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3937","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0811.3937/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0811.3937","created_at":"2026-07-04T17:19:25.820440+00:00"},{"alias_kind":"arxiv_version","alias_value":"0811.3937v2","created_at":"2026-07-04T17:19:25.820440+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3937","created_at":"2026-07-04T17:19:25.820440+00:00"},{"alias_kind":"pith_short_12","alias_value":"PTOLKYOFBMKA","created_at":"2026-07-04T17:19:25.820440+00:00"},{"alias_kind":"pith_short_16","alias_value":"PTOLKYOFBMKAJQ7R","created_at":"2026-07-04T17:19:25.820440+00:00"},{"alias_kind":"pith_short_8","alias_value":"PTOLKYOF","created_at":"2026-07-04T17:19:25.820440+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2","json":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2.json","graph_json":"https://pith.science/api/pith-number/PTOLKYOFBMKAJQ7RCEDPSAUOY2/graph.json","events_json":"https://pith.science/api/pith-number/PTOLKYOFBMKAJQ7RCEDPSAUOY2/events.json","paper":"https://pith.science/paper/PTOLKYOF"},"agent_actions":{"view_html":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2","download_json":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2.json","view_paper":"https://pith.science/paper/PTOLKYOF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0811.3937&json=true","fetch_graph":"https://pith.science/api/pith-number/PTOLKYOFBMKAJQ7RCEDPSAUOY2/graph.json","fetch_events":"https://pith.science/api/pith-number/PTOLKYOFBMKAJQ7RCEDPSAUOY2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2/action/storage_attestation","attest_author":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2/action/author_attestation","sign_citation":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2/action/citation_signature","submit_replication":"https://pith.science/pith/PTOLKYOFBMKAJQ7RCEDPSAUOY2/action/replication_record"}},"created_at":"2026-07-04T17:19:25.820440+00:00","updated_at":"2026-07-04T17:19:25.820440+00:00"}