{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KG52PQZVXC5YVLUZ7TPM6UG4GV","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":"ce44d5f03f112aa8ccc48a370946a7485d60c662e9848b064f53f7432716e9d2","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-05-02T13:16:13Z","title_canon_sha256":"58486d0c2cae1ef7c11b101dad1c87c56bd87fe4fca8f90d74ba16b2bbdbe373"},"schema_version":"1.0","source":{"id":"2405.01267","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.01267","created_at":"2026-07-05T08:14:43Z"},{"alias_kind":"arxiv_version","alias_value":"2405.01267v1","created_at":"2026-07-05T08:14:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.01267","created_at":"2026-07-05T08:14:43Z"},{"alias_kind":"pith_short_12","alias_value":"KG52PQZVXC5Y","created_at":"2026-07-05T08:14:43Z"},{"alias_kind":"pith_short_16","alias_value":"KG52PQZVXC5YVLUZ","created_at":"2026-07-05T08:14:43Z"},{"alias_kind":"pith_short_8","alias_value":"KG52PQZV","created_at":"2026-07-05T08:14:43Z"}],"graph_snapshots":[{"event_id":"sha256:5c5b82fe7ed40a654a37e00c5b4966f144d3fcd9ad3fc165dc2507d4bdb3b7eb","target":"graph","created_at":"2026-07-05T08:14:43Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2405.01267/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Massive stars rotate faster, on average, than lower mass stars. Stellar rotation triggers hydrodynamical instabilities which transport angular momentum and chemical species from the core to the surface. Models of high-mass stars that include these processes predict that chemical mixing is stronger at lower metallicity. We aim to test this prediction by comparing the surface abundances of massive stars at different metallicities. We performed a spectroscopic analysis of single O stars in the Magellanic Clouds (MCs) based on the ULLYSES and XshootU surveys. We determined the fundamental paramete","authors_text":"(10) University of Munich, (11) University of Heidelberg, (12) Armagh Observatory, (2) CNRS & University of Aix-Marseille, (3) University of Pittsburgh, (4) University of Amsterdam, (5) University of Sheffield, (6) IAC, 7), (7) University of La Laguna, (8) CSIC-INTA, (9) University of Potsdam, A.A.C. Sander (11), A. Herrero (6, D.J. Hillier (3), D. Pauli (9), F. Martins (1), F. Najarro (8), J.-C. Bouret (2), J. Puls (10), J.S. Vink (12), P.A. Crowther (5), Planetarium), S.A. Brands (4), the XshootU collaboration ((1) CNRS & University of Montpellier, V. Ramachandran (11)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-05-02T13:16:13Z","title":"X-Shooting ULLYSES: Massive stars at low metallicity -- V. Effect of metallicity on surface abundances of O stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.01267","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":"sha256:0f11cf4cd36d0c444263b5774b5e79c6a66b25304f86e9432446c053bbe36396","target":"record","created_at":"2026-07-05T08:14:43Z","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":"ce44d5f03f112aa8ccc48a370946a7485d60c662e9848b064f53f7432716e9d2","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-05-02T13:16:13Z","title_canon_sha256":"58486d0c2cae1ef7c11b101dad1c87c56bd87fe4fca8f90d74ba16b2bbdbe373"},"schema_version":"1.0","source":{"id":"2405.01267","kind":"arxiv","version":1}},"canonical_sha256":"51bba7c335b8bb8aae99fcdecf50dc3556c5750db54783026f9c677ebf783472","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51bba7c335b8bb8aae99fcdecf50dc3556c5750db54783026f9c677ebf783472","first_computed_at":"2026-07-05T08:14:43.027662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:14:43.027662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YBkPCN8a5VPm1T4+XptY3ziPAFD2fEJKF56OoVptiFKoksJTLDOmdmPEzybVA/cPY5/nFkKIQiNNEDaUuWuRCw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:14:43.028166Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.01267","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f11cf4cd36d0c444263b5774b5e79c6a66b25304f86e9432446c053bbe36396","sha256:5c5b82fe7ed40a654a37e00c5b4966f144d3fcd9ad3fc165dc2507d4bdb3b7eb"],"state_sha256":"1320e04a4119014480d1ad22d8f12e7f70509b0ef17ec46bb4f45afc0821c3a1"}