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Here we show that the \\texttt{2G+2G} merger scenario for GW231123 is favored over a \\texttt{2G+1G} (or \\texttt{3G+2G}) merger, with odds ratios of $>$$\\mathcal{O}(10^3)$. The primary (secondary) black hole is consistent with merging binary black holes with masses of $75^{+7}_{-7}\\,M_\\odot$ and $66^{+4}_{-10}\\,M_\\odot$ ($64^{+8}_{-10}\\,M_\\odot$ and $59^{+7}_{-9}\\,M_\\odot$;"},"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":"2509.08298","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-09-10T05:36:59Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR","gr-qc"],"title_canon_sha256":"5579e9e1d186962fcca9cc49d1235a019a12fd58df0fcf230368380c01de0746","abstract_canon_sha256":"2d1f1afc21ded915d9c4bf0afc4ef639988794cbcf4f75514170300de262534a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:08:27.140465Z","signature_b64":"NCus8YaunN3aIvJoCLRv4zDLM/7GQmWaWFzWF3sHNSuVdhGtM0qqRms3dbqLBz8LlKlnf9QUoD1pZ+6zSfkpBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f88110f04ecb4125a03e95491b5c50e9b3e47e633fbd0c408eb7104f353526e5","last_reissued_at":"2026-07-05T12:08:27.139955Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:08:27.139955Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Hierarchical Merger Scenario for GW231123","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR","gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Guo-peng Li, Xi-Long Fan","submitted_at":"2025-09-10T05:36:59Z","abstract_excerpt":"GW231123 exhibits exceedingly massive components and high spins, which challenges the formation of first-generation (1G) black holes from stellar collapse and implies that this event might originate from hierarchical mergers. 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