{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:6MMSZYBECTBKMHIQT4TNZBYX4N","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":"54e9e780e5f00ccdfb7429d1a1194fa47c04493e63fd85e9670a6e6365a313fd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-22T16:29:21Z","title_canon_sha256":"a1892ca90c14c0401285e89f972a6911da7c0c2988558dffa3bde4bce8ea9450"},"schema_version":"1.0","source":{"id":"astro-ph/0005435","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0005435","created_at":"2026-05-18T04:23:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0005435v2","created_at":"2026-05-18T04:23:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0005435","created_at":"2026-05-18T04:23:01Z"},{"alias_kind":"pith_short_12","alias_value":"6MMSZYBECTBK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"6MMSZYBECTBKMHIQ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"6MMSZYBE","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:e13a5e430a1b8854f06b868a7df98f80bad6b5bbc01d0af8b84e80e02e00b2ad","target":"graph","created_at":"2026-05-18T04:23:01Z","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 critically examine the basic paradigm for the origin of the 2-3 hr period gap in cataclysmic variables (CVs). We carry out an extensive population synthesis study of CVs starting from ~ 3 x 10^6 primordial binaries, and evolving some ~ 2 x 10^4 surviving systems through their CV phase. In particular we study current-epoch distributions of CVs in the $\\dot M-P_{orb}$, R_{2}-P_{orb}, M_{2}-P_{orb}, q-P_{orb}, T_{eff}-P_{orb}, and L_{2}-P_{orb} planes, where $\\dot M$ is the mass transfer rate, q is the mass ratio M_2/M_1, and M_2, R_2, T_{eff}, and L_2 are the donor star mass, radius, effectiv","authors_text":"Lorne A. Nelson, & Saul Rappaport, Steve B. Howell","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-05-22T16:29:21Z","title":"An Exploration of the Paradigm for the 2-3 Hour Period Gap in Cataclysmic Variables"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0005435","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":"sha256:4aee3536d9913bc4c62bd3f0310f94be48f8a3e7adc4a253469f9359c5fb5caf","target":"record","created_at":"2026-05-18T04:23:01Z","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":"54e9e780e5f00ccdfb7429d1a1194fa47c04493e63fd85e9670a6e6365a313fd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-22T16:29:21Z","title_canon_sha256":"a1892ca90c14c0401285e89f972a6911da7c0c2988558dffa3bde4bce8ea9450"},"schema_version":"1.0","source":{"id":"astro-ph/0005435","kind":"arxiv","version":2}},"canonical_sha256":"f3192ce02414c2a61d109f26dc8717e376bf8a8c4f730d7f41d5377ec7ec450f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3192ce02414c2a61d109f26dc8717e376bf8a8c4f730d7f41d5377ec7ec450f","first_computed_at":"2026-05-18T04:23:01.474871Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:01.474871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5eg8keNqxlD+vlTRmlWT2LlHobWNrz6pKlZsO2XiqxBQsKyjkPzswwhKsrhVbgZlf1KmlUVLhZPpEoYGgvUiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:01.475423Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0005435","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4aee3536d9913bc4c62bd3f0310f94be48f8a3e7adc4a253469f9359c5fb5caf","sha256:e13a5e430a1b8854f06b868a7df98f80bad6b5bbc01d0af8b84e80e02e00b2ad"],"state_sha256":"b08f5aa20610d22c0620594d4f15f1acd967706870e44333ccb8b0fa992eeb65"}