{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:3EJAOWSBXIGQLLDWQ3E74NEO36","short_pith_number":"pith:3EJAOWSB","schema_version":"1.0","canonical_sha256":"d912075a41ba0d05ac7686c9fe348edf8ef5c2689844a0d6c861e5997a284096","source":{"kind":"arxiv","id":"1010.3376","version":1},"attestation_state":"computed","paper":{"title":"Old White Dwarf Stars with Some Hydrogen -- Cooling Curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Brad M. S. Hansen, Eugene Y. Chen","submitted_at":"2010-10-16T20:13:06Z","abstract_excerpt":"We present theoretical analysis on old white dwarf stars with \\emph{some} hydrogen, that possess a mass of surface hydrogen from $1\\times10^{-11}M_{\\sun}$ to $1\\times10^{-7}M_{\\sun}$. The evolution of such objects is complicated by convective mixing from surface convection zone to the underlying helium layer. In this paper, we provide first self-consistent, quantitative investigation on the subject of convective mixing. Numerical cooling curves and chemical evolution curves are obtained as a function of white dwarf mass and hydrogen content. Such results will be applied to the investigation of"},"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":"1010.3376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-16T20:13:06Z","cross_cats_sorted":[],"title_canon_sha256":"c4c228a33dd6dad4d57f4a23f70ca1cb71e854fc121a0c01a815317e7ffa1dd8","abstract_canon_sha256":"9a22e9d2c64204a8877b1d4649fbaac8f85b814d19a388bdcd3d179aab0f2232"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:39:09.294213Z","signature_b64":"fiv15xVjkdAK5pY9use59JHbf66AV5Uv2L9T1UYipJZ4ButapfhDDBxdXBLrizWyeAuLIQGXCJblmc9ohdWEBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d912075a41ba0d05ac7686c9fe348edf8ef5c2689844a0d6c861e5997a284096","last_reissued_at":"2026-05-18T04:39:09.293766Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:39:09.293766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Old White Dwarf Stars with Some Hydrogen -- Cooling Curves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Brad M. S. Hansen, Eugene Y. Chen","submitted_at":"2010-10-16T20:13:06Z","abstract_excerpt":"We present theoretical analysis on old white dwarf stars with \\emph{some} hydrogen, that possess a mass of surface hydrogen from $1\\times10^{-11}M_{\\sun}$ to $1\\times10^{-7}M_{\\sun}$. The evolution of such objects is complicated by convective mixing from surface convection zone to the underlying helium layer. In this paper, we provide first self-consistent, quantitative investigation on the subject of convective mixing. Numerical cooling curves and chemical evolution curves are obtained as a function of white dwarf mass and hydrogen content. Such results will be applied to the investigation of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.3376","kind":"arxiv","version":1},"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":"1010.3376","created_at":"2026-05-18T04:39:09.293827+00:00"},{"alias_kind":"arxiv_version","alias_value":"1010.3376v1","created_at":"2026-05-18T04:39:09.293827+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.3376","created_at":"2026-05-18T04:39:09.293827+00:00"},{"alias_kind":"pith_short_12","alias_value":"3EJAOWSBXIGQ","created_at":"2026-05-18T12:26:03.138858+00:00"},{"alias_kind":"pith_short_16","alias_value":"3EJAOWSBXIGQLLDW","created_at":"2026-05-18T12:26:03.138858+00:00"},{"alias_kind":"pith_short_8","alias_value":"3EJAOWSB","created_at":"2026-05-18T12:26:03.138858+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/3EJAOWSBXIGQLLDWQ3E74NEO36","json":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36.json","graph_json":"https://pith.science/api/pith-number/3EJAOWSBXIGQLLDWQ3E74NEO36/graph.json","events_json":"https://pith.science/api/pith-number/3EJAOWSBXIGQLLDWQ3E74NEO36/events.json","paper":"https://pith.science/paper/3EJAOWSB"},"agent_actions":{"view_html":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36","download_json":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36.json","view_paper":"https://pith.science/paper/3EJAOWSB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1010.3376&json=true","fetch_graph":"https://pith.science/api/pith-number/3EJAOWSBXIGQLLDWQ3E74NEO36/graph.json","fetch_events":"https://pith.science/api/pith-number/3EJAOWSBXIGQLLDWQ3E74NEO36/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36/action/storage_attestation","attest_author":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36/action/author_attestation","sign_citation":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36/action/citation_signature","submit_replication":"https://pith.science/pith/3EJAOWSBXIGQLLDWQ3E74NEO36/action/replication_record"}},"created_at":"2026-05-18T04:39:09.293827+00:00","updated_at":"2026-05-18T04:39:09.293827+00:00"}