{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IKIW5J7DH2AZOBFPMBIZ5VT5CS","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"00aa66ee2f7859426510cabc8a1a54f0fde33ba00accef359973e7de90aafa1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-26T02:58:33Z","title_canon_sha256":"eeb99dad4d7402d922cfe2d33711dad193be6967ea5ac2794a66983ff7419ef9"},"schema_version":"1.0","source":{"id":"1302.6296","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.6296","created_at":"2026-05-18T03:32:30Z"},{"alias_kind":"arxiv_version","alias_value":"1302.6296v1","created_at":"2026-05-18T03:32:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.6296","created_at":"2026-05-18T03:32:30Z"},{"alias_kind":"pith_short_12","alias_value":"IKIW5J7DH2AZ","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"IKIW5J7DH2AZOBFP","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"IKIW5J7D","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:9595e0808f43ad70bf2885a0a01be6ffc6fad54762c2d3f19622fc3fd0efa5f9","target":"graph","created_at":"2026-05-18T03:32:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"VFTS102 has a projected rotational velocity ($>$500\\,km s$^{-1}$) and would appear to be the fastest rotating O-type star. We show that its high rotational velocity could be understood within the framework of the binary merger. In the binary merger channel, the progenitor binary of VFTS102 would evolve into contact while two components are still on the main sequence, and then merge into a rapidly rotating single star. Employing Eggleton's stellar evolution code, we performed binary stellar evolution calculations and mapped out the initial parameters of the progenitor of VFTS102 in the orbital ","authors_text":"Dengkai Jiang, Lifang Li, Liheng Yang, Zhanwen Han","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-26T02:58:33Z","title":"The binary merger channel for the progenitor of the fastest rotating O-type star VFTS102"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.6296","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:94090f9bb61284459fe41530029a06d66bb702b6822651614367d0656914ddba","target":"record","created_at":"2026-05-18T03:32:30Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"00aa66ee2f7859426510cabc8a1a54f0fde33ba00accef359973e7de90aafa1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-26T02:58:33Z","title_canon_sha256":"eeb99dad4d7402d922cfe2d33711dad193be6967ea5ac2794a66983ff7419ef9"},"schema_version":"1.0","source":{"id":"1302.6296","kind":"arxiv","version":1}},"canonical_sha256":"42916ea7e33e819704af60519ed67d14adf91d0f32f0e0e364bcf2e6a08f71c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42916ea7e33e819704af60519ed67d14adf91d0f32f0e0e364bcf2e6a08f71c8","first_computed_at":"2026-05-18T03:32:30.807945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:30.807945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BnLhxlycwF/G01/Zatla1pnN5aD0efgByCHSUfCX7WDxycKcHYJRqUO3lQ+yLifUMRuvXLHMWwjhzWnrZUOHBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:30.808533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.6296","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94090f9bb61284459fe41530029a06d66bb702b6822651614367d0656914ddba","sha256:9595e0808f43ad70bf2885a0a01be6ffc6fad54762c2d3f19622fc3fd0efa5f9"],"state_sha256":"19979b288b32a2f42900db5d5c5a5e34abf43061b457f5d495b1b90302254c2a"}