{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:FKH5MPMGXF4TJAT73MBIERIN4Y","short_pith_number":"pith:FKH5MPMG","schema_version":"1.0","canonical_sha256":"2a8fd63d86b97934827fdb0282450de613ce38bf92df28edd0b6b7da5610cab6","source":{"kind":"arxiv","id":"1310.7446","version":3},"attestation_state":"computed","paper":{"title":"Radial Transport of Large-Scale Magnetic Fields in Accretion Disks. I. Steady Solutions and an Upper Limit on the Vertical Field Strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Satoshi Okuzumi, Takayuki Muto, Taku Takeuchi","submitted_at":"2013-10-28T15:05:25Z","abstract_excerpt":"Large-scale magnetic fields are key ingredients of magnetically driven disk accretion. We study how large-scale poloidal fields evolve in accretion disks, with the primary aim of quantifying the viability of magnetic accretion mechanisms in protoplanetary disks. We employ a kinematic mean-field model for poloidal field transport and focus on steady states where inward advection of a field balances with outward diffusion due to effective resistivities. We analytically derive the steady-state radial distribution of poloidal fields in highly conducting accretion disks. The analytic solution revea"},"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":"1310.7446","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-10-28T15:05:25Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"6d639143b266d0d9f283a637728e771b73bdd88e6a797425f36fed0c4fe5bdf1","abstract_canon_sha256":"40df35e5ec9f43be3f2bbf53fde56db88bd15674a943f3d64898d1563d2943a7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:48.664587Z","signature_b64":"zKzGOpyU9Vz3wWxJb6mbOQSm56gR72Mc+Yg6mMktkI6O1hn9BSs5yxpom2zk0ZKpnCFe7QJtv0L/lrOISCmTDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a8fd63d86b97934827fdb0282450de613ce38bf92df28edd0b6b7da5610cab6","last_reissued_at":"2026-05-18T01:46:48.663903Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:48.663903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Radial Transport of Large-Scale Magnetic Fields in Accretion Disks. I. Steady Solutions and an Upper Limit on the Vertical Field Strength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Satoshi Okuzumi, Takayuki Muto, Taku Takeuchi","submitted_at":"2013-10-28T15:05:25Z","abstract_excerpt":"Large-scale magnetic fields are key ingredients of magnetically driven disk accretion. We study how large-scale poloidal fields evolve in accretion disks, with the primary aim of quantifying the viability of magnetic accretion mechanisms in protoplanetary disks. We employ a kinematic mean-field model for poloidal field transport and focus on steady states where inward advection of a field balances with outward diffusion due to effective resistivities. We analytically derive the steady-state radial distribution of poloidal fields in highly conducting accretion disks. The analytic solution revea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.7446","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1310.7446","created_at":"2026-05-18T01:46:48.664028+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.7446v3","created_at":"2026-05-18T01:46:48.664028+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.7446","created_at":"2026-05-18T01:46:48.664028+00:00"},{"alias_kind":"pith_short_12","alias_value":"FKH5MPMGXF4T","created_at":"2026-05-18T12:27:45.050594+00:00"},{"alias_kind":"pith_short_16","alias_value":"FKH5MPMGXF4TJAT7","created_at":"2026-05-18T12:27:45.050594+00:00"},{"alias_kind":"pith_short_8","alias_value":"FKH5MPMG","created_at":"2026-05-18T12:27:45.050594+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/FKH5MPMGXF4TJAT73MBIERIN4Y","json":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y.json","graph_json":"https://pith.science/api/pith-number/FKH5MPMGXF4TJAT73MBIERIN4Y/graph.json","events_json":"https://pith.science/api/pith-number/FKH5MPMGXF4TJAT73MBIERIN4Y/events.json","paper":"https://pith.science/paper/FKH5MPMG"},"agent_actions":{"view_html":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y","download_json":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y.json","view_paper":"https://pith.science/paper/FKH5MPMG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.7446&json=true","fetch_graph":"https://pith.science/api/pith-number/FKH5MPMGXF4TJAT73MBIERIN4Y/graph.json","fetch_events":"https://pith.science/api/pith-number/FKH5MPMGXF4TJAT73MBIERIN4Y/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y/action/storage_attestation","attest_author":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y/action/author_attestation","sign_citation":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y/action/citation_signature","submit_replication":"https://pith.science/pith/FKH5MPMGXF4TJAT73MBIERIN4Y/action/replication_record"}},"created_at":"2026-05-18T01:46:48.664028+00:00","updated_at":"2026-05-18T01:46:48.664028+00:00"}