{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:JFOVRDKNG5R32H6Q42GCMXXOJP","short_pith_number":"pith:JFOVRDKN","schema_version":"1.0","canonical_sha256":"495d588d4d3763bd1fd0e68c265eee4bcf7ba57e20604a8a0bc2da192e39a812","source":{"kind":"arxiv","id":"2104.14607","version":1},"attestation_state":"computed","paper":{"title":"The origin and evolution of magnetic white dwarfs in close binary stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Boris T. Gaensicke, Diogo Belloni, Matthias R. Schreiber, Monica Zorotovic, Steven G. Parsons","submitted_at":"2021-04-29T18:49:10Z","abstract_excerpt":"The origin of magnetic fields in white dwarfs remains a fundamental unresolved problem in stellar astrophysics. In particular, the very different fractions of strongly (exceeding 1 MG) magnetic white dwarfs in evolutionarily linked populations of close white dwarf binary stars cannot be reproduced by any scenario suggested so far. Strongly magnetic white dwarfs are absent among detached white dwarf binary stars that are younger than approximately 1 Gyr. In contrast, in semi-detached cataclysmic variables in which the white dwarf accretes from a low-mass star companion, more than one third host"},"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":"2104.14607","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-04-29T18:49:10Z","cross_cats_sorted":[],"title_canon_sha256":"c0d4213197b83ad8ad6347bcdb3cb4d51576c1392ed5d1e6860a234dffe708fa","abstract_canon_sha256":"e64e04d88d987a043454f32c62bc38dd5edb16e937cdb90f8ac05ad739b21c2e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:36:24.451817Z","signature_b64":"DYpUUXhX9JnCL3bSdE6AriUXHWDfp5+LCiLdkWA3ySIkWNZSY6Mr2pbIWhGUiHRZhThK3jBA5RwrLojO7YvsBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"495d588d4d3763bd1fd0e68c265eee4bcf7ba57e20604a8a0bc2da192e39a812","last_reissued_at":"2026-07-05T02:36:24.451407Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:36:24.451407Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The origin and evolution of magnetic white dwarfs in close binary stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Boris T. Gaensicke, Diogo Belloni, Matthias R. Schreiber, Monica Zorotovic, Steven G. Parsons","submitted_at":"2021-04-29T18:49:10Z","abstract_excerpt":"The origin of magnetic fields in white dwarfs remains a fundamental unresolved problem in stellar astrophysics. In particular, the very different fractions of strongly (exceeding 1 MG) magnetic white dwarfs in evolutionarily linked populations of close white dwarf binary stars cannot be reproduced by any scenario suggested so far. Strongly magnetic white dwarfs are absent among detached white dwarf binary stars that are younger than approximately 1 Gyr. In contrast, in semi-detached cataclysmic variables in which the white dwarf accretes from a low-mass star companion, more than one third host"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.14607","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.14607/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2104.14607","created_at":"2026-07-05T02:36:24.451469+00:00"},{"alias_kind":"arxiv_version","alias_value":"2104.14607v1","created_at":"2026-07-05T02:36:24.451469+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.14607","created_at":"2026-07-05T02:36:24.451469+00:00"},{"alias_kind":"pith_short_12","alias_value":"JFOVRDKNG5R3","created_at":"2026-07-05T02:36:24.451469+00:00"},{"alias_kind":"pith_short_16","alias_value":"JFOVRDKNG5R32H6Q","created_at":"2026-07-05T02:36:24.451469+00:00"},{"alias_kind":"pith_short_8","alias_value":"JFOVRDKN","created_at":"2026-07-05T02:36:24.451469+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2411.16606","citing_title":"Detection of X-ray Emission from a Bright Long-Period Radio Transient","ref_index":109,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP","json":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP.json","graph_json":"https://pith.science/api/pith-number/JFOVRDKNG5R32H6Q42GCMXXOJP/graph.json","events_json":"https://pith.science/api/pith-number/JFOVRDKNG5R32H6Q42GCMXXOJP/events.json","paper":"https://pith.science/paper/JFOVRDKN"},"agent_actions":{"view_html":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP","download_json":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP.json","view_paper":"https://pith.science/paper/JFOVRDKN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2104.14607&json=true","fetch_graph":"https://pith.science/api/pith-number/JFOVRDKNG5R32H6Q42GCMXXOJP/graph.json","fetch_events":"https://pith.science/api/pith-number/JFOVRDKNG5R32H6Q42GCMXXOJP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP/action/storage_attestation","attest_author":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP/action/author_attestation","sign_citation":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP/action/citation_signature","submit_replication":"https://pith.science/pith/JFOVRDKNG5R32H6Q42GCMXXOJP/action/replication_record"}},"created_at":"2026-07-05T02:36:24.451469+00:00","updated_at":"2026-07-05T02:36:24.451469+00:00"}