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The central issue is to appraise the pros and cons of a possibility that this object is --- despite its brightness reported at discovery --- a dwarf Kreutz sungrazer. We confirm Marsden's (1989) conclusion that C/1945 X1 has a common parent with C/1882 R1 and C/1965 S1, in line with the Sekanina-Chodas (2004) scenario of their origin in the framework of the Kreutz system's evolution"},"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":"1506.01402","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-06-03T20:43:09Z","cross_cats_sorted":[],"title_canon_sha256":"7b294ea7e75970f07dd999d6a026f31c17765e8dc17e5c0f620e12a06a0ae490","abstract_canon_sha256":"ad14d729a341fa52f8466f0fefc28540c3e2bb92e4ab23aa559be903e7458b17"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:18.987691Z","signature_b64":"lJ6x7zQhAzEq1lGRfv87sedA0QmLYhZd0YbUILgVwKK4DkR5k6u8j5+jEhCYsOg4T76AZA5uweWKPaIqCWA2Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c2090bac2af12178d6119f35831ea4219c5ec4a0a24778f606564e6ad0c4742","last_reissued_at":"2026-05-18T01:24:18.987311Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:18.987311Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Was Comet C/1945 X1 (du Toit) a Dwarf, SOHO-Like Kreutz Sungrazer?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Rainer Kracht, Zdenek Sekanina","submitted_at":"2015-06-03T20:43:09Z","abstract_excerpt":"The goal of this investigation is to reinterpret and upgrade the astrometric and other data on comet C/1945 X1, the least prominent among the Kreutz system sungrazers discovered from the ground in the 20th century. 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