{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NABTBK6UWGUKOKMIVM6G7S45UR","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":"f17f09a699276e1a54515512b5a0ed1f2207d76c85978a14364e2d4f34c233ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-18T02:16:56Z","title_canon_sha256":"01e1b52e186ef6ec06a665bd0b5336e9cba19ffea51a134c7fd595bdc16f5580"},"schema_version":"1.0","source":{"id":"1210.5009","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5009","created_at":"2026-05-18T03:42:54Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5009v1","created_at":"2026-05-18T03:42:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5009","created_at":"2026-05-18T03:42:54Z"},{"alias_kind":"pith_short_12","alias_value":"NABTBK6UWGUK","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NABTBK6UWGUKOKMI","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NABTBK6U","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:a65386142401bed6e5e9f1abdbececd12df26d0a548ec4bdae9bbb2473cf3259","target":"graph","created_at":"2026-05-18T03:42:54Z","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 a detailed study of Carbon-Enhanced Metal-Poor (CEMP) stars, based on high-resolution spectroscopic observations of a sample of 18 stars. The stellar spectra for this sample were obtained at the 4.2m William Herschel Telescope (WHT) in 2001 and 2002, using the Utrecht Echelle Spectrograph (UES), at a resolving power R ~52000 and S/N ~ 40, covering the wavelength range lambda-lambda 3700-5700 A. The atmospheric parameters determined for this sample indicate temperatures ranging from 4750 C to 7100 K, log g from 1.5 to 4.3, and metallicities -3.0 <= [Fe/H] <= -1.7. Elemental abundance","authors_text":"Dinah M. Allen, Sean G. Ryan, Silvia Rossi, Stelios A. Tsangarides, Tim C. Beers","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-18T02:16:56Z","title":"Elemental abundances and classification of CEMP stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5009","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":"sha256:70876fa718ad193ba55dd5f882bf0f3eb98865a1480e482a78c007535f63c46a","target":"record","created_at":"2026-05-18T03:42:54Z","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":"f17f09a699276e1a54515512b5a0ed1f2207d76c85978a14364e2d4f34c233ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-18T02:16:56Z","title_canon_sha256":"01e1b52e186ef6ec06a665bd0b5336e9cba19ffea51a134c7fd595bdc16f5580"},"schema_version":"1.0","source":{"id":"1210.5009","kind":"arxiv","version":1}},"canonical_sha256":"680330abd4b1a8a72988ab3c6fcb9da4561a2a01951c99c601b2bc8472615bb9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"680330abd4b1a8a72988ab3c6fcb9da4561a2a01951c99c601b2bc8472615bb9","first_computed_at":"2026-05-18T03:42:54.529777Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:42:54.529777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+O3dCKMZUbX587SZ3D0Z/VgzLHyI9Vu9FKz3gwWTY2L27RCw0xrt7ch25c44P1OXXC2UVxBp3xSMajmA/kh7Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:42:54.530364Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.5009","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70876fa718ad193ba55dd5f882bf0f3eb98865a1480e482a78c007535f63c46a","sha256:a65386142401bed6e5e9f1abdbececd12df26d0a548ec4bdae9bbb2473cf3259"],"state_sha256":"871276e3c82fbff19cceba2c87857a911202ad612381fb697fd33b7c5fa864c4"}