{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:BQA7LVN274EA4MFAN747LOX27O","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":"d46857bb2b68e77be59bdc3ba922e3ab5532139fa9abc6525d161d4e3f14756c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-04T07:51:54Z","title_canon_sha256":"3dbce77623b3eccb702e5cfe2a3f02769d19b6c27a424a3ad740cf2bf923e6e3"},"schema_version":"1.0","source":{"id":"astro-ph/9806065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9806065","created_at":"2026-07-04T16:06:44Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9806065v1","created_at":"2026-07-04T16:06:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9806065","created_at":"2026-07-04T16:06:44Z"},{"alias_kind":"pith_short_12","alias_value":"BQA7LVN274EA","created_at":"2026-07-04T16:06:44Z"},{"alias_kind":"pith_short_16","alias_value":"BQA7LVN274EA4MFA","created_at":"2026-07-04T16:06:44Z"},{"alias_kind":"pith_short_8","alias_value":"BQA7LVN2","created_at":"2026-07-04T16:06:44Z"}],"graph_snapshots":[{"event_id":"sha256:5b8731de48d8664ddfe27dcee4b3df00e81f8f74dcf7a6e83ff10828fb72559c","target":"graph","created_at":"2026-07-04T16:06:44Z","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/astro-ph/9806065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use the Shaviv and Wehrse (1991) code to model the vertical structure and the emission properties of quiescent dwarf nova discs. We find that in the case of HT Cas the quiescent disc must be optically thin, in contradiction with the requirements of the standard disc instability model. We find a viscosity parameter alpha > 1. Although this is much less than values (~ 100) obtained in isothermal slab models it is not consistent with the accretion disc model assumptions.","authors_text":"Giora Shaviv, Irit Idan, Jean-Marie Hameury, Jean-Pierre Lasota","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-06-04T07:51:54Z","title":"Radiation from Dwarf Nova Discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9806065","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":"sha256:9ccbf48043bebe934eaa443d7f4d14fc1502f66b18f3bf151ccc13db4efcfe2a","target":"record","created_at":"2026-07-04T16:06:44Z","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":"d46857bb2b68e77be59bdc3ba922e3ab5532139fa9abc6525d161d4e3f14756c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-04T07:51:54Z","title_canon_sha256":"3dbce77623b3eccb702e5cfe2a3f02769d19b6c27a424a3ad740cf2bf923e6e3"},"schema_version":"1.0","source":{"id":"astro-ph/9806065","kind":"arxiv","version":1}},"canonical_sha256":"0c01f5d5baff080e30a06ff9f5bafafb902b2d5b4c0fb24362cfc0d1f16d35d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c01f5d5baff080e30a06ff9f5bafafb902b2d5b4c0fb24362cfc0d1f16d35d1","first_computed_at":"2026-07-04T16:06:44.116658Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:06:44.116658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JlQc1bqxTynyx31n7MXygj9kH+GP20GBwF4KF6eV9VPSn3mYAyIqa57r+92AEZzjwpjkheAlV7+DtNcwSBANDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:06:44.117006Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9806065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ccbf48043bebe934eaa443d7f4d14fc1502f66b18f3bf151ccc13db4efcfe2a","sha256:5b8731de48d8664ddfe27dcee4b3df00e81f8f74dcf7a6e83ff10828fb72559c"],"state_sha256":"e7b85c4b8365c886e9b4e4a438e98a53a40b532604696d396183688452407298"}