{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JOY4D4UT5IO65AJQ4RBI7NF5U7","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":"f668c9b0acb2265a9c52b444c1d4040c70e6c0c2a74c786f97b2d0ad6378508f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-09T20:00:01Z","title_canon_sha256":"d66ec8323abd4cf58c95b9a258e60aa666f83d8e435a8f9de3e845bcac2b40cd"},"schema_version":"1.0","source":{"id":"1108.2033","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.2033","created_at":"2026-05-18T02:00:59Z"},{"alias_kind":"arxiv_version","alias_value":"1108.2033v1","created_at":"2026-05-18T02:00:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.2033","created_at":"2026-05-18T02:00:59Z"},{"alias_kind":"pith_short_12","alias_value":"JOY4D4UT5IO6","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JOY4D4UT5IO65AJQ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JOY4D4UT","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:73632a6a4345f414dabd910858841a903f116969ebfd1e08b2c60408494d6565","target":"graph","created_at":"2026-05-18T02:00:59Z","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":"We report on the discovery of a super-Li rich turn-off star in the old (12 Gyr), metal poor ([Fe/H]=-2.1 dex) globular cluster (GC) NGC 6397, based on high-resolution MIKE/Magellan spectra. This star shows an unusually high lithium abundance of A(Li)_NLTE = 4.03 +/- 0.06 +/- 0.14 dex (or, 4.21, accounting for possible contamination from a binary companion) that lies above the canonical Li-plateau by a factor of 100. This is the highest Li enhancement found in a Galactic GC dwarf star to date. We discuss several enhancement mechanisms, but none can unambiguously explain such a high overabundanc","authors_text":"Andreas Koch, Karin Lind, R. Michael Rich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-09T20:00:01Z","title":"Discovery of a super-Li rich turn-off star in the metal poor globular cluster NGC 6397"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.2033","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:f3963b5ce364e7462296fee1640b80834e7d5ecbfe01442f5fb3d642be3ba096","target":"record","created_at":"2026-05-18T02:00:59Z","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":"f668c9b0acb2265a9c52b444c1d4040c70e6c0c2a74c786f97b2d0ad6378508f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-09T20:00:01Z","title_canon_sha256":"d66ec8323abd4cf58c95b9a258e60aa666f83d8e435a8f9de3e845bcac2b40cd"},"schema_version":"1.0","source":{"id":"1108.2033","kind":"arxiv","version":1}},"canonical_sha256":"4bb1c1f293ea1dee8130e4428fb4bda7d61ccab8c8371861669ab81013c308cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4bb1c1f293ea1dee8130e4428fb4bda7d61ccab8c8371861669ab81013c308cc","first_computed_at":"2026-05-18T02:00:59.629983Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:59.629983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9OHEKskqXpMwumPG25XFnC+X9rJXsbUwv8nHwosDeA9/ZdhUuOcNRsm/HVPBs/o48epf2W+1ovxivrf44PP3AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:59.630776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.2033","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3963b5ce364e7462296fee1640b80834e7d5ecbfe01442f5fb3d642be3ba096","sha256:73632a6a4345f414dabd910858841a903f116969ebfd1e08b2c60408494d6565"],"state_sha256":"59fe04e75e8a956c658933918eef635f6221fd24f4f7feb4a367339873bfe2af"}