{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:P3WOQDSR45Q5QFKDNIX3LXD3CB","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":"82b3f0926ec6c9e7b33e1ccb1e329884a95b6ca0157a73e092aa86856d082328","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-10-07T14:42:12Z","title_canon_sha256":"0de57f12d24d13c5c657a621c25968aea12c2ba51e78b370b4d1b57e64706ede"},"schema_version":"1.0","source":{"id":"astro-ph/9810112","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9810112","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9810112v1","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9810112","created_at":"2026-05-18T01:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"P3WOQDSR45Q5","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"P3WOQDSR45Q5QFKD","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"P3WOQDSR","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:27f2e1a6cfdd868163826191d25ea4b89d7c7d26527eea12d3332392094ed6b5","target":"graph","created_at":"2026-05-18T01:21:56Z","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":"Accretion disc theory was first developed as a theory with the local heat balance, where the whole energy produced by a viscous heating was emitted to the sides of the disc. One of the most important new invention of this theory was a phenomenological treatment of the turbulent viscosity, known as ''alpha'' prescription, when the (r$\\phi$) component of the stress tensor was approximated by ($\\alpha$ P) with a unknown constant $\\alpha$. This prescription played the role in the accretion disc theory as well important as the mixing-length theory of convection for stellar evolution. Sources of tur","authors_text":"G.S.Bisnovatyi-Kogan","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-10-07T14:42:12Z","title":"Accretion Disc Theory: From the Standard Model Until Advection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9810112","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":"sha256:316f0c6bbb0d0bbf69f82e856ec54099883176516fa685f049124d95016debe8","target":"record","created_at":"2026-05-18T01:21:56Z","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":"82b3f0926ec6c9e7b33e1ccb1e329884a95b6ca0157a73e092aa86856d082328","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-10-07T14:42:12Z","title_canon_sha256":"0de57f12d24d13c5c657a621c25968aea12c2ba51e78b370b4d1b57e64706ede"},"schema_version":"1.0","source":{"id":"astro-ph/9810112","kind":"arxiv","version":1}},"canonical_sha256":"7eece80e51e761d815436a2fb5dc7b107b62f7eb9dccbdcea1e1de92d52ecce0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7eece80e51e761d815436a2fb5dc7b107b62f7eb9dccbdcea1e1de92d52ecce0","first_computed_at":"2026-05-18T01:21:56.388762Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:56.388762Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fb49/Fw1EzVQAohSHGX3WsFu8fRBgvc/6N/IVY1fy0PMc/LUFvYzJTcZuXsW1dhj6A2xehZX+0jKjt+MkrVIAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:56.389374Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9810112","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:316f0c6bbb0d0bbf69f82e856ec54099883176516fa685f049124d95016debe8","sha256:27f2e1a6cfdd868163826191d25ea4b89d7c7d26527eea12d3332392094ed6b5"],"state_sha256":"2cdf38efe66da6c58c777dfd0848ba3ae0a2c06537737b1230af7f3b6c320795"}