{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:BBAWJOEJRG6EHQ77FZ3YCJKME3","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":"bd934af4d9065895f8f2eac504226664b243970932a4ef7ffe0e33e0cccd0a33","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-16T03:37:49Z","title_canon_sha256":"7d3040c8ef9ecd3f324b047886190e566611b4a23c881a071129a1bf8c278971"},"schema_version":"1.0","source":{"id":"2407.11352","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.11352","created_at":"2026-07-05T08:44:22Z"},{"alias_kind":"arxiv_version","alias_value":"2407.11352v1","created_at":"2026-07-05T08:44:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.11352","created_at":"2026-07-05T08:44:22Z"},{"alias_kind":"pith_short_12","alias_value":"BBAWJOEJRG6E","created_at":"2026-07-05T08:44:22Z"},{"alias_kind":"pith_short_16","alias_value":"BBAWJOEJRG6EHQ77","created_at":"2026-07-05T08:44:22Z"},{"alias_kind":"pith_short_8","alias_value":"BBAWJOEJ","created_at":"2026-07-05T08:44:22Z"}],"graph_snapshots":[{"event_id":"sha256:0b6fcde74d4c33d8859b5f3cdbe52889ab0b31db29e6b04ef6db0969b3873c10","target":"graph","created_at":"2026-07-05T08:44:22Z","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/2407.11352/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report high-precision multi-wavelength linear-polarization observations of the bright B9 (or A0) star $\\epsilon$ Sagittarii. The polarization shows the distinctive wavelength dependence expected for a rapidly rotating star. Analysis of the polarization data reveals an angular rotation rate $\\omega$ (= $\\Omega/\\Omega_{crit})$ of 0.995 or greater, the highest yet measured for a star in our galaxy. An additional wavelength-independent polarization component is attributed to electron scattering in a low-density edge-on gas disk that also produces the narrow absorption components seen in the spe","authors_text":"Daniel V. Cotton, Fiona Lewis, Ian D. Howarth, Jeremy Bailey, Jonathan P. Marshall, Lucyna Kedziora-Chudczer","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-16T03:37:49Z","title":"Epsilon Sagittarii: An Extreme Rapid Rotator with a Decretion Disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.11352","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":"sha256:8a177ad5fb082f95d5f6dcbe969fda3f5ad3d78fc59e88048c02646b112c02ab","target":"record","created_at":"2026-07-05T08:44:22Z","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":"bd934af4d9065895f8f2eac504226664b243970932a4ef7ffe0e33e0cccd0a33","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-07-16T03:37:49Z","title_canon_sha256":"7d3040c8ef9ecd3f324b047886190e566611b4a23c881a071129a1bf8c278971"},"schema_version":"1.0","source":{"id":"2407.11352","kind":"arxiv","version":1}},"canonical_sha256":"084164b88989bc43c3ff2e7781254c26f95bd3a9dc4a6979fa0398c100bbd571","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"084164b88989bc43c3ff2e7781254c26f95bd3a9dc4a6979fa0398c100bbd571","first_computed_at":"2026-07-05T08:44:22.904642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:44:22.904642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nLWJBRhT9w3ykV88G+OCM8DjGpVg3uf9n8raXK4VyiB/PBceMVXtzXT3lns9OMejgr9Tz7W3SdDqgm9bipdlAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:44:22.904978Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.11352","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a177ad5fb082f95d5f6dcbe969fda3f5ad3d78fc59e88048c02646b112c02ab","sha256:0b6fcde74d4c33d8859b5f3cdbe52889ab0b31db29e6b04ef6db0969b3873c10"],"state_sha256":"ab60a3cb638a2023725e2b647447a241f9560e2d396f8f7884faf94274a8391b"}