{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:EVEHO5ACIH664TFRC5KKGBHBCJ","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":"f3ba77a4cbbda98d60167bd46dfd6aefdad3bcb36620472334c2280cd8d8ffe4","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-09T08:57:23Z","title_canon_sha256":"a91403f9a31460381816338675f4ab435296e513d64cf843227055a08f7e15ae"},"schema_version":"1.0","source":{"id":"1908.03370","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03370","created_at":"2026-07-05T00:02:02Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03370v1","created_at":"2026-07-05T00:02:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03370","created_at":"2026-07-05T00:02:02Z"},{"alias_kind":"pith_short_12","alias_value":"EVEHO5ACIH66","created_at":"2026-07-05T00:02:02Z"},{"alias_kind":"pith_short_16","alias_value":"EVEHO5ACIH664TFR","created_at":"2026-07-05T00:02:02Z"},{"alias_kind":"pith_short_8","alias_value":"EVEHO5AC","created_at":"2026-07-05T00:02:02Z"}],"graph_snapshots":[{"event_id":"sha256:9f8dd462f4fe440c348db09161003838b96941d89bf79221900c74dbc34f7608","target":"graph","created_at":"2026-07-05T00:02:02Z","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/1908.03370/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The atmospheric parameters and abundances of Mg, Si, Ca, and Ti have been determined for 20 stars using the Gaia DR2 parallaxes, high-resolution spectra, and the non-local thermodynamic equilibrium (non-LTE) line formation modeling. A sample of stars with homogeneous data on the abundances of alpha-process elements has thus been increased to 94. It is shown that applying a non-LTE approach and classical 1D atmospheric models with spectroscopically determined surface gravities based on Fe~I and Fe~II lines yields reliable results. Analysis of the full sample confirms the conclusions of earlier ","authors_text":"Lyudmila Mashonkina, Maria Neretina, Tatyana Sitnova, Yuri Pakhomov","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-09T08:57:23Z","title":"Abundances of alpha-Process Elements in Thin-Disk, Thick-Disk, and Halo Stars of the Galaxy: Non-LTE Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03370","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":"sha256:3b2744473853dc86130c42efe59c3e0e0d21fb5fd66d0e33f0278eb7c7694503","target":"record","created_at":"2026-07-05T00:02:02Z","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":"f3ba77a4cbbda98d60167bd46dfd6aefdad3bcb36620472334c2280cd8d8ffe4","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-09T08:57:23Z","title_canon_sha256":"a91403f9a31460381816338675f4ab435296e513d64cf843227055a08f7e15ae"},"schema_version":"1.0","source":{"id":"1908.03370","kind":"arxiv","version":1}},"canonical_sha256":"254877740241fdee4cb11754a304e11254c66ec44622b4d9a9a1ccb65369ab2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"254877740241fdee4cb11754a304e11254c66ec44622b4d9a9a1ccb65369ab2a","first_computed_at":"2026-07-05T00:02:02.220629Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:02:02.220629Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fFDDUNfRzzv1mWuEo1YZwiJrHiQ9sA2+lcldDcqPT+L05j0qxzye0gd78afLUg+xoKGSfG8OYD7sGZksO+H9Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:02:02.221073Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03370","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b2744473853dc86130c42efe59c3e0e0d21fb5fd66d0e33f0278eb7c7694503","sha256:9f8dd462f4fe440c348db09161003838b96941d89bf79221900c74dbc34f7608"],"state_sha256":"00b00b5841313d9ac442450091a3fc3a63266c6dbbf7ba9fbc9614e30f2751a2"}