{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RHJTIR3G23LQROV6E2ELU5OEQF","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":"83eb9cef8b8083c7c5b72c9e057f0d5af5b86c71cea8e33ea625dc3908191d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-04T10:05:37Z","title_canon_sha256":"c128c26b7080ce17667b841a51bf57d784b06da4f505f7e5341cf164e94dd967"},"schema_version":"1.0","source":{"id":"0909.0888","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.0888","created_at":"2026-05-18T02:11:59Z"},{"alias_kind":"arxiv_version","alias_value":"0909.0888v1","created_at":"2026-05-18T02:11:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.0888","created_at":"2026-05-18T02:11:59Z"},{"alias_kind":"pith_short_12","alias_value":"RHJTIR3G23LQ","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RHJTIR3G23LQROV6","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RHJTIR3G","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:35cf04e166609eb483e6866b0723df42bab87f52c4c82b724144b505c84b7675","target":"graph","created_at":"2026-05-18T02:11:59Z","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":"(abridged) As the favoured progenitors of long-duration gamma-ray bursts, massive stars may represent our best signposts of individual objects in the early Universe, but special conditions seem required to make these bursters, which might originate from the progenitor's rapid rotation and associated asymmetry. To obtain empirical constraints on the interplay between stellar rotation and wind asymmetry, we perform linear Halpha spectropolarimetry on a sample of 18 spectroscopically peculiar massive O stars, including OVz, Of?p, Oe, and Onfp stars, supplemented by an earlier sample of 20 O super","authors_text":"B. Davies, Jorick S. Vink (Armagh Observatory), N.R. Walborn, R.D. Oudmaijer, T.J. Harries","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-04T10:05:37Z","title":"On the presence and absence of disks around O-type stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.0888","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:f53f0b943674c0ac1838f078598649f60d537a0ec6495604b801f202a98e082f","target":"record","created_at":"2026-05-18T02:11:59Z","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":"83eb9cef8b8083c7c5b72c9e057f0d5af5b86c71cea8e33ea625dc3908191d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-04T10:05:37Z","title_canon_sha256":"c128c26b7080ce17667b841a51bf57d784b06da4f505f7e5341cf164e94dd967"},"schema_version":"1.0","source":{"id":"0909.0888","kind":"arxiv","version":1}},"canonical_sha256":"89d3344766d6d708babe2688ba75c48152bc8b51274e0f94277f9e46063a1177","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89d3344766d6d708babe2688ba75c48152bc8b51274e0f94277f9e46063a1177","first_computed_at":"2026-05-18T02:11:59.758655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:59.758655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s5WEDsSHu/XTW6dIOKNDw8LDH8v9ySf4sq4JRyV9jhI26CiM0qzzls0VaBZARG0zwxirjtoJleLG11sxUqy1Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:59.759496Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.0888","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f53f0b943674c0ac1838f078598649f60d537a0ec6495604b801f202a98e082f","sha256:35cf04e166609eb483e6866b0723df42bab87f52c4c82b724144b505c84b7675"],"state_sha256":"00e41952e24b63641c07f9065db11d902993e1f1f6a8e23236818777d62bc7ad"}