{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UGLQIIYIADX62PFBEXNGBETVVH","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":"6425fcb443ad438ddaedff7d455adc2158277371ec526f64cad6fb77a587460a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T22:28:34Z","title_canon_sha256":"3ebd230038557eeb77f8d0c464f17efe9ac8f5a5173b39afff95a41fc857ecd2"},"schema_version":"1.0","source":{"id":"1112.2737","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.2737","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"arxiv_version","alias_value":"1112.2737v1","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.2737","created_at":"2026-05-18T01:59:11Z"},{"alias_kind":"pith_short_12","alias_value":"UGLQIIYIADX6","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UGLQIIYIADX62PFB","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UGLQIIYI","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:7c22cda945a04394a6124fad6825e9fed76c108e849dc12a85ab0ead98950346","target":"graph","created_at":"2026-05-18T01:59:11Z","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 present absorption line indices measured in the integrated spectra of globular clusters both from the Galaxy and from M 31. Our samples include 41 Galactic globular clusters, and more than 300 clusters in M 31. The conversion of instrumental equivalent widths into the Lick system is described, and zero-point uncertainties are provided. Comparison of line indices of old M 31 clusters and Galactic globular clusters suggests an absence of important differences in chemical composition between the two cluster systems. In particular, CN indices in the spectra of M 31 and Galactic clusters are ess","authors_text":"Genevieve J. Graves, Heather Morrison, Lauren A. MacArthur, Nelson Caldwell, Paul Harding, Ricardo P. Schiavon, Stephane Courteau","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T22:28:34Z","title":"Star Clusters in M 31. IV. A Comparative Analysis of Absorption Line Indices in Old M 31 and Milky Way Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.2737","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":"sha256:9597a6065ffc6c292cc9ddd9a3c128f848bc2d5ca1e38692017398bec03c635d","target":"record","created_at":"2026-05-18T01:59:11Z","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":"6425fcb443ad438ddaedff7d455adc2158277371ec526f64cad6fb77a587460a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-12T22:28:34Z","title_canon_sha256":"3ebd230038557eeb77f8d0c464f17efe9ac8f5a5173b39afff95a41fc857ecd2"},"schema_version":"1.0","source":{"id":"1112.2737","kind":"arxiv","version":1}},"canonical_sha256":"a19704230800efed3ca125da609275a9c24e952914620e9fa5b19d7171414103","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a19704230800efed3ca125da609275a9c24e952914620e9fa5b19d7171414103","first_computed_at":"2026-05-18T01:59:11.274121Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:11.274121Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WhBQn3fUudQelr713kaqVeCi2D9nGAj0jSjufW1CN/373G/M0V7pCl2G+1axqgMBovpwPC8IcSGxc1e8cVdIAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:11.274676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.2737","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9597a6065ffc6c292cc9ddd9a3c128f848bc2d5ca1e38692017398bec03c635d","sha256:7c22cda945a04394a6124fad6825e9fed76c108e849dc12a85ab0ead98950346"],"state_sha256":"9cc1136cad3de6d9329f18c59f0978402a0edc4f8715786595ccfc2ff8957633"}