{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:AQHUMDG4WD345WG73B4R7UGQ7X","short_pith_number":"pith:AQHUMDG4","schema_version":"1.0","canonical_sha256":"040f460cdcb0f7ced8dfd8791fd0d0fdc1737acc3b1e3482095fd15b5921b531","source":{"kind":"arxiv","id":"1801.03196","version":1},"attestation_state":"computed","paper":{"title":"The double helium-white dwarf channel for the formation of AM CVn binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Simon Jeffery, Jinzhong Liu, Philip D.Hall, Shaolan Bi, Xianfei Zhang","submitted_at":"2018-01-10T00:27:44Z","abstract_excerpt":"Most close double helium white dwarfs will merge within a Hubble time due to orbital decay by gravitational-wave radiation. However, a significant fraction with low mass ratios will survive for a long time as a consequence of stable mass transfer. Such stable mass transfer between two helium white dwarfs (HeWD) provides one channel for the production of AM\\,CVn binary stars. In previous calculations of double HeWD progenitors, the accreting HeWD was treated as a point mass. We have computed the evolution of 16 double HeWD models in order to investigate the consequences of treating the detailed"},"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":"1801.03196","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-01-10T00:27:44Z","cross_cats_sorted":[],"title_canon_sha256":"6c2b900cd2c70c73465c34015e40080f809406859e53316aa7026d5c25163122","abstract_canon_sha256":"aeb693b98086baa42d00c59d508190d016396d649fbbc1a9362b9767909e6a9f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:18.787580Z","signature_b64":"g9I03w/A6omdDF31Bb5TpmDrV0gVjYdDNCbuIx+rrmXCYfYHHHHgk1gmAEibE2GgSEvdAlrtWBh638g0+g76BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"040f460cdcb0f7ced8dfd8791fd0d0fdc1737acc3b1e3482095fd15b5921b531","last_reissued_at":"2026-05-18T00:26:18.786994Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:18.786994Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The double helium-white dwarf channel for the formation of AM CVn binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Simon Jeffery, Jinzhong Liu, Philip D.Hall, Shaolan Bi, Xianfei Zhang","submitted_at":"2018-01-10T00:27:44Z","abstract_excerpt":"Most close double helium white dwarfs will merge within a Hubble time due to orbital decay by gravitational-wave radiation. However, a significant fraction with low mass ratios will survive for a long time as a consequence of stable mass transfer. Such stable mass transfer between two helium white dwarfs (HeWD) provides one channel for the production of AM\\,CVn binary stars. In previous calculations of double HeWD progenitors, the accreting HeWD was treated as a point mass. We have computed the evolution of 16 double HeWD models in order to investigate the consequences of treating the detailed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03196","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":"1801.03196","created_at":"2026-05-18T00:26:18.787096+00:00"},{"alias_kind":"arxiv_version","alias_value":"1801.03196v1","created_at":"2026-05-18T00:26:18.787096+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03196","created_at":"2026-05-18T00:26:18.787096+00:00"},{"alias_kind":"pith_short_12","alias_value":"AQHUMDG4WD34","created_at":"2026-05-18T12:32:13.499390+00:00"},{"alias_kind":"pith_short_16","alias_value":"AQHUMDG4WD345WG7","created_at":"2026-05-18T12:32:13.499390+00:00"},{"alias_kind":"pith_short_8","alias_value":"AQHUMDG4","created_at":"2026-05-18T12:32:13.499390+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/AQHUMDG4WD345WG73B4R7UGQ7X","json":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X.json","graph_json":"https://pith.science/api/pith-number/AQHUMDG4WD345WG73B4R7UGQ7X/graph.json","events_json":"https://pith.science/api/pith-number/AQHUMDG4WD345WG73B4R7UGQ7X/events.json","paper":"https://pith.science/paper/AQHUMDG4"},"agent_actions":{"view_html":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X","download_json":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X.json","view_paper":"https://pith.science/paper/AQHUMDG4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1801.03196&json=true","fetch_graph":"https://pith.science/api/pith-number/AQHUMDG4WD345WG73B4R7UGQ7X/graph.json","fetch_events":"https://pith.science/api/pith-number/AQHUMDG4WD345WG73B4R7UGQ7X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X/action/storage_attestation","attest_author":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X/action/author_attestation","sign_citation":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X/action/citation_signature","submit_replication":"https://pith.science/pith/AQHUMDG4WD345WG73B4R7UGQ7X/action/replication_record"}},"created_at":"2026-05-18T00:26:18.787096+00:00","updated_at":"2026-05-18T00:26:18.787096+00:00"}