{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:I34ASC3VZQ57CUISRCMNJRVE2V","short_pith_number":"pith:I34ASC3V","schema_version":"1.0","canonical_sha256":"46f8090b75cc3bf151128898d4c6a4d55904de11ac155cf1b02d1500d14abd78","source":{"kind":"arxiv","id":"2001.03114","version":1},"attestation_state":"computed","paper":{"title":"Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chunhua Zhu, Dian Xie, Guoliang L\\\"u, Helei Liu, Jinzhong Liu, Lin Li, Zhaojun Wang","submitted_at":"2020-01-07T03:02:13Z","abstract_excerpt":"ZTF J153932.16+502738.8 (ZTFJ1539) is an eclipsing double-white-dwarf system with an orbital period of 6.91 minutes, and is a significant source of LISA detecting gravitational wave. However, the massive white dwarf (WD) with mass of about 0.61 M$_\\odot$ has a high effective temperature (48900 K), and the lower mass WD with mass of about 0.21 M$_{\\odot}$ has a low effective temperature($<$10000 K). It is challenging the popular theory of binary evolution. We investigate the formation of ZTFJ1539 via nova and Algol scenarios. Assuming that the massive WD in ZTFJ1539 just experiences a thermalnu"},"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":"2001.03114","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-07T03:02:13Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"84a6958aa89286f1fc8a607cb7c745345c51cac60bdd1c221c2a52b8e3ace8d6","abstract_canon_sha256":"4ffa439b13d559e7a118494f1bb6f04f1712cd8f723e3ad66baeef77ce7eeb61"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:43:45.384027Z","signature_b64":"vtExAtNgfzRKYoHTwvkgvdRR7GTJ0/7g6QwRSGq7wuF4M4LysxMbULTILYbHWku+P0W0LLNUs5eW4DaRa4BLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46f8090b75cc3bf151128898d4c6a4d55904de11ac155cf1b02d1500d14abd78","last_reissued_at":"2026-07-05T00:43:45.383624Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:43:45.383624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Possible Formation Scenarios of ZTF J153932.16+502738.8-A Gravitational Source Close to the Peak of LISA's Sensitivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chunhua Zhu, Dian Xie, Guoliang L\\\"u, Helei Liu, Jinzhong Liu, Lin Li, Zhaojun Wang","submitted_at":"2020-01-07T03:02:13Z","abstract_excerpt":"ZTF J153932.16+502738.8 (ZTFJ1539) is an eclipsing double-white-dwarf system with an orbital period of 6.91 minutes, and is a significant source of LISA detecting gravitational wave. However, the massive white dwarf (WD) with mass of about 0.61 M$_\\odot$ has a high effective temperature (48900 K), and the lower mass WD with mass of about 0.21 M$_{\\odot}$ has a low effective temperature($<$10000 K). It is challenging the popular theory of binary evolution. We investigate the formation of ZTFJ1539 via nova and Algol scenarios. Assuming that the massive WD in ZTFJ1539 just experiences a thermalnu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.03114","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/2001.03114/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":"2001.03114","created_at":"2026-07-05T00:43:45.383678+00:00"},{"alias_kind":"arxiv_version","alias_value":"2001.03114v1","created_at":"2026-07-05T00:43:45.383678+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.03114","created_at":"2026-07-05T00:43:45.383678+00:00"},{"alias_kind":"pith_short_12","alias_value":"I34ASC3VZQ57","created_at":"2026-07-05T00:43:45.383678+00:00"},{"alias_kind":"pith_short_16","alias_value":"I34ASC3VZQ57CUIS","created_at":"2026-07-05T00:43:45.383678+00:00"},{"alias_kind":"pith_short_8","alias_value":"I34ASC3V","created_at":"2026-07-05T00:43:45.383678+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/I34ASC3VZQ57CUISRCMNJRVE2V","json":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V.json","graph_json":"https://pith.science/api/pith-number/I34ASC3VZQ57CUISRCMNJRVE2V/graph.json","events_json":"https://pith.science/api/pith-number/I34ASC3VZQ57CUISRCMNJRVE2V/events.json","paper":"https://pith.science/paper/I34ASC3V"},"agent_actions":{"view_html":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V","download_json":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V.json","view_paper":"https://pith.science/paper/I34ASC3V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2001.03114&json=true","fetch_graph":"https://pith.science/api/pith-number/I34ASC3VZQ57CUISRCMNJRVE2V/graph.json","fetch_events":"https://pith.science/api/pith-number/I34ASC3VZQ57CUISRCMNJRVE2V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V/action/storage_attestation","attest_author":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V/action/author_attestation","sign_citation":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V/action/citation_signature","submit_replication":"https://pith.science/pith/I34ASC3VZQ57CUISRCMNJRVE2V/action/replication_record"}},"created_at":"2026-07-05T00:43:45.383678+00:00","updated_at":"2026-07-05T00:43:45.383678+00:00"}