{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:HXNDS6L2KY7ZIW5PIXQUFCUGEF","short_pith_number":"pith:HXNDS6L2","schema_version":"1.0","canonical_sha256":"3dda39797a563f945baf45e1428a86215f452384083bb44ae2691b17980c2d85","source":{"kind":"arxiv","id":"1407.0248","version":2},"attestation_state":"computed","paper":{"title":"Hybrid C-O-Ne white dwarfs as progenitors of type Ia supernovae: dependence on Urca process and mixing assumptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Paxton (UC Santa Barbara), F. Herwig (U Vic), H. Toki (Osaka U), J. W. Truran (U Chicago), K. Nomoto (U Tokyo), P. Denissenkov (U Vic), S. Jones (U Vic), Tokyo), T. Suzuki (Nihon U","submitted_at":"2014-07-01T14:16:35Z","abstract_excerpt":"When carbon is ignited off-centre in a CO core of a super-AGB star, its burning in a convective shell tends to propagate to the centre. Whether the C flame will actually be able to reach the centre depends on the efficiency of extra mixing beneath the C convective shell. Whereas thermohaline mixing is too inefficient to interfere with the C-flame propagation, convective boundary mixing can prevent the C burning from reaching the centre. As a result, a C-O-Ne white dwarf (WD) is formed, after the star has lost its envelope. Such a \"hybrid\" WD has a small CO core surrounded by a thick ONe zone. "},"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":"1407.0248","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-01T14:16:35Z","cross_cats_sorted":[],"title_canon_sha256":"57c57cc56801461a8def8c73c311c515a9d9583c2f1eec731114d088bac69680","abstract_canon_sha256":"abe8a672b39de90762d7ba615d494399f0aaef5e6404561714962237fe481dea"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:43.039016Z","signature_b64":"Cll8OyhwpsSxYeuYc7TlH1/qsDMrNdlyqJ3aXUdtgHnOIlvzD6m0wCJDSItPlt//vdjAtZuFIDfFI3U6DVJ3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3dda39797a563f945baf45e1428a86215f452384083bb44ae2691b17980c2d85","last_reissued_at":"2026-05-18T01:42:43.038502Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:43.038502Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hybrid C-O-Ne white dwarfs as progenitors of type Ia supernovae: dependence on Urca process and mixing assumptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"B. Paxton (UC Santa Barbara), F. Herwig (U Vic), H. Toki (Osaka U), J. W. Truran (U Chicago), K. Nomoto (U Tokyo), P. Denissenkov (U Vic), S. Jones (U Vic), Tokyo), T. Suzuki (Nihon U","submitted_at":"2014-07-01T14:16:35Z","abstract_excerpt":"When carbon is ignited off-centre in a CO core of a super-AGB star, its burning in a convective shell tends to propagate to the centre. Whether the C flame will actually be able to reach the centre depends on the efficiency of extra mixing beneath the C convective shell. Whereas thermohaline mixing is too inefficient to interfere with the C-flame propagation, convective boundary mixing can prevent the C burning from reaching the centre. As a result, a C-O-Ne white dwarf (WD) is formed, after the star has lost its envelope. Such a \"hybrid\" WD has a small CO core surrounded by a thick ONe zone. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.0248","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":""},"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":"1407.0248","created_at":"2026-05-18T01:42:43.038579+00:00"},{"alias_kind":"arxiv_version","alias_value":"1407.0248v2","created_at":"2026-05-18T01:42:43.038579+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.0248","created_at":"2026-05-18T01:42:43.038579+00:00"},{"alias_kind":"pith_short_12","alias_value":"HXNDS6L2KY7Z","created_at":"2026-05-18T12:28:30.664211+00:00"},{"alias_kind":"pith_short_16","alias_value":"HXNDS6L2KY7ZIW5P","created_at":"2026-05-18T12:28:30.664211+00:00"},{"alias_kind":"pith_short_8","alias_value":"HXNDS6L2","created_at":"2026-05-18T12:28:30.664211+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/HXNDS6L2KY7ZIW5PIXQUFCUGEF","json":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF.json","graph_json":"https://pith.science/api/pith-number/HXNDS6L2KY7ZIW5PIXQUFCUGEF/graph.json","events_json":"https://pith.science/api/pith-number/HXNDS6L2KY7ZIW5PIXQUFCUGEF/events.json","paper":"https://pith.science/paper/HXNDS6L2"},"agent_actions":{"view_html":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF","download_json":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF.json","view_paper":"https://pith.science/paper/HXNDS6L2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1407.0248&json=true","fetch_graph":"https://pith.science/api/pith-number/HXNDS6L2KY7ZIW5PIXQUFCUGEF/graph.json","fetch_events":"https://pith.science/api/pith-number/HXNDS6L2KY7ZIW5PIXQUFCUGEF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF/action/storage_attestation","attest_author":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF/action/author_attestation","sign_citation":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF/action/citation_signature","submit_replication":"https://pith.science/pith/HXNDS6L2KY7ZIW5PIXQUFCUGEF/action/replication_record"}},"created_at":"2026-05-18T01:42:43.038579+00:00","updated_at":"2026-05-18T01:42:43.038579+00:00"}