{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:QKFOJLJT7CMYWPZHWXOGPQITPR","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":"a153a313ddc73ed02c17bd5e1970233b8ae3c1420ac8564aeb50cd5149cefbc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-05-16T14:19:58Z","title_canon_sha256":"8d0e3ea059d2480c4b349658afd9ef2b15b8b9b5dd193a680baef4ccc03419b9"},"schema_version":"1.0","source":{"id":"0805.2544","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.2544","created_at":"2026-07-04T17:10:53Z"},{"alias_kind":"arxiv_version","alias_value":"0805.2544v1","created_at":"2026-07-04T17:10:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.2544","created_at":"2026-07-04T17:10:53Z"},{"alias_kind":"pith_short_12","alias_value":"QKFOJLJT7CMY","created_at":"2026-07-04T17:10:53Z"},{"alias_kind":"pith_short_16","alias_value":"QKFOJLJT7CMYWPZH","created_at":"2026-07-04T17:10:53Z"},{"alias_kind":"pith_short_8","alias_value":"QKFOJLJT","created_at":"2026-07-04T17:10:53Z"}],"graph_snapshots":[{"event_id":"sha256:843961be2a8342e69d9f4b1c325425e862b6e31693d79b60d3352d416feb7068","target":"graph","created_at":"2026-07-04T17:10:53Z","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/0805.2544/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Rotational mixing is a very important but uncertain process in the evolution of massive stars. We propose to use close binaries to test its efficiency. Based on rotating single stellar models we predict nitrogen surface enhancements for tidally locked binaries. Furthermore we demonstrate the possibility of a new evolutionary scenario for very massive (M > 40 solar mass) close (P < 3 days) binaries: Case M, in which mixing is so efficient that the stars evolve quasi-chemically homogeneously, stay compact and avoid any Roche-lobe overflow, leading to very close (double) WR binaries.","authors_text":"E. Glebbeek, I. Brott, M. Cantiello, M. Verkoulen, N. Langer, O.R. Pols, S.-Ch. Yoon, S.E. de Mink","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-05-16T14:19:58Z","title":"Rotational mixing in close binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.2544","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:e19ff589e16221dedcbb9ddeca32f49fc8729449e4dc771f61bf35ceed667a5d","target":"record","created_at":"2026-07-04T17:10:53Z","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":"a153a313ddc73ed02c17bd5e1970233b8ae3c1420ac8564aeb50cd5149cefbc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-05-16T14:19:58Z","title_canon_sha256":"8d0e3ea059d2480c4b349658afd9ef2b15b8b9b5dd193a680baef4ccc03419b9"},"schema_version":"1.0","source":{"id":"0805.2544","kind":"arxiv","version":1}},"canonical_sha256":"828ae4ad33f8998b3f27b5dc67c1137c5341cc610960868c9e4714bf5692727e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"828ae4ad33f8998b3f27b5dc67c1137c5341cc610960868c9e4714bf5692727e","first_computed_at":"2026-07-04T17:10:53.983804Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:10:53.983804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NNAIcGXr7BQ6LqBVjFqKDvihaCWaHQ9cehGijW2a8VxoP5zL0TCCMFzh25AYSHF0Y7Wdq4miYuZmcCkckhHkCA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:10:53.984307Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.2544","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e19ff589e16221dedcbb9ddeca32f49fc8729449e4dc771f61bf35ceed667a5d","sha256:843961be2a8342e69d9f4b1c325425e862b6e31693d79b60d3352d416feb7068"],"state_sha256":"609e72e1cd3f1ce7d5f7f8e4aea55708c2a4e7aa9cbbd766523c839f2fde741e"}