{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:NRP3P7SIHMQ6I746DW3CH3DU2W","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":"339ac4a902cc2c000f87417134578e23ba4c9c2e0b3f225d26d3d0e77ba654c3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-10T21:13:39Z","title_canon_sha256":"f88d20d0929dafc281341b603f02321c604b66281207407a35e82b4391f0fe88"},"schema_version":"1.0","source":{"id":"1311.2306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.2306","created_at":"2026-05-18T03:02:56Z"},{"alias_kind":"arxiv_version","alias_value":"1311.2306v1","created_at":"2026-05-18T03:02:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.2306","created_at":"2026-05-18T03:02:56Z"},{"alias_kind":"pith_short_12","alias_value":"NRP3P7SIHMQ6","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NRP3P7SIHMQ6I746","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NRP3P7SI","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:49c67ad6c7220d5e11f84a21a5aab665abb76c926a4bdf4ae4c45af1c8151387","target":"graph","created_at":"2026-05-18T03:02:56Z","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":"In a series of three papers, we investigate the current status of published metallicities for open clusters that were derived from a variety of photometric and spectroscopic methods. The current article focuses on spectroscopic methods. The aim is to compile a comprehensive set of clusters with the most reliable metallicities from high-resolution spectroscopic studies. This set of metallicities will be the basis for a calibration of metallicities from different methods. The literature was searched for [Fe/H] estimates of individual member stars of open clusters based on the analysis of high-re","authors_text":"C. Soubiran, E. Paunzen, M. Netopil, U. Heiter","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-10T21:13:39Z","title":"On the metallicity of open clusters II. Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.2306","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:d4c324245def735c74580358370b5bef690cd2d366ee1291c89fec3c5d8a3d6d","target":"record","created_at":"2026-05-18T03:02:56Z","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":"339ac4a902cc2c000f87417134578e23ba4c9c2e0b3f225d26d3d0e77ba654c3","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-10T21:13:39Z","title_canon_sha256":"f88d20d0929dafc281341b603f02321c604b66281207407a35e82b4391f0fe88"},"schema_version":"1.0","source":{"id":"1311.2306","kind":"arxiv","version":1}},"canonical_sha256":"6c5fb7fe483b21e47f9e1db623ec74d5a5ceb4ca4faa2907756cce6d96465c06","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c5fb7fe483b21e47f9e1db623ec74d5a5ceb4ca4faa2907756cce6d96465c06","first_computed_at":"2026-05-18T03:02:56.813134Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:02:56.813134Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5eqdINsFlFiyhqkzs+CDKDchRKlwqRTsgOzgjNL4IbEdGbL7AQ4PTKmvQ/dl8gyK/fM+yfOn86dKbwtz4CaoCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:02:56.813801Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.2306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4c324245def735c74580358370b5bef690cd2d366ee1291c89fec3c5d8a3d6d","sha256:49c67ad6c7220d5e11f84a21a5aab665abb76c926a4bdf4ae4c45af1c8151387"],"state_sha256":"95ab53d302c437be8237b7ea2c682747dbc186ab456437348a46084f6597cf0d"}