{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UX672YL2VBW4WKGSKYGWBZWMJW","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":"b4dc433baf0338803897b5e2180ad24a16933473336266d265707f6dfbd1cd8c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-10T20:01:23Z","title_canon_sha256":"5014628a0e51f34b0a2dacd1fcdf8e978b86e60fa3776274c4bfb19c988f72d7"},"schema_version":"1.0","source":{"id":"1503.03079","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.03079","created_at":"2026-05-18T01:40:52Z"},{"alias_kind":"arxiv_version","alias_value":"1503.03079v2","created_at":"2026-05-18T01:40:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03079","created_at":"2026-05-18T01:40:52Z"},{"alias_kind":"pith_short_12","alias_value":"UX672YL2VBW4","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UX672YL2VBW4WKGS","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UX672YL2","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:403816bfd8f7fc87b2b6ec8a0584c49cd727c60f1f92b2515c7622be7c2ed6d7","target":"graph","created_at":"2026-05-18T01:40:52Z","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 have observed 15 red giant stars in the relatively massive, metal-poor globular cluster NGC 4833 using the Magellan Inamori Kyocera Echelle spectrograph at Magellan. We calculate stellar parameters for each star and perform a standard abundance analysis to derive abundances of 43 species of 39 elements, including 20 elements heavier than the iron group. We derive <[Fe/H]> = -2.25 +/- 0.02 from Fe I lines and <[Fe/H> = -2.19 +/- 0.013 from Fe II lines. We confirm earlier results that found no internal metallicity spread in NGC 4833, and there are no significant star-to-star abundance dispers","authors_text":"Ian B. Thompson (Carnegie Observatories), Ian U. Roederer (University of Michigan)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-10T20:01:23Z","title":"Detailed Abundances of 15 Stars in the Metal-Poor Globular Cluster NGC 4833"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03079","kind":"arxiv","version":2},"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":"sha256:36c0b4f3ab54740dff30f2bdd8c6e3666ddc8c6b8ce9a52b9855980a7fcaa2ba","target":"record","created_at":"2026-05-18T01:40:52Z","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":"b4dc433baf0338803897b5e2180ad24a16933473336266d265707f6dfbd1cd8c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-10T20:01:23Z","title_canon_sha256":"5014628a0e51f34b0a2dacd1fcdf8e978b86e60fa3776274c4bfb19c988f72d7"},"schema_version":"1.0","source":{"id":"1503.03079","kind":"arxiv","version":2}},"canonical_sha256":"a5fdfd617aa86dcb28d2560d60e6cc4d8833f143d468db3825141e7129be53d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5fdfd617aa86dcb28d2560d60e6cc4d8833f143d468db3825141e7129be53d1","first_computed_at":"2026-05-18T01:40:52.526460Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:52.526460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OEOQm/LqmhtzUHgntT/Nxb5w2K2bTkTffP4XmAGm4MrvasKezdWC2SQx2FWfv4eGVcv9IckSqeZwZam7QFhRAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:52.526987Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.03079","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36c0b4f3ab54740dff30f2bdd8c6e3666ddc8c6b8ce9a52b9855980a7fcaa2ba","sha256:403816bfd8f7fc87b2b6ec8a0584c49cd727c60f1f92b2515c7622be7c2ed6d7"],"state_sha256":"e5d7ce6509433634f6989871efa945759f640af74052ca02d7f534367fd2b75b"}