{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:5HWMRZPLKJQ636FPQRH2Q4QA5R","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":"58e4891c835dfb4b5a80b8305f632930d0abfcc75d35bfabd730de8724a19b60","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-21T14:23:43Z","title_canon_sha256":"cc867d8dbe03ba60a7a26c1053fcb68a42d0060fcd843de8b327a6f9ac450053"},"schema_version":"1.0","source":{"id":"1607.06336","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.06336","created_at":"2026-05-18T00:55:13Z"},{"alias_kind":"arxiv_version","alias_value":"1607.06336v3","created_at":"2026-05-18T00:55:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.06336","created_at":"2026-05-18T00:55:13Z"},{"alias_kind":"pith_short_12","alias_value":"5HWMRZPLKJQ6","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_16","alias_value":"5HWMRZPLKJQ636FP","created_at":"2026-05-18T12:30:01Z"},{"alias_kind":"pith_short_8","alias_value":"5HWMRZPL","created_at":"2026-05-18T12:30:01Z"}],"graph_snapshots":[{"event_id":"sha256:27d8e96aaa8a2713e4c4ddb3ee4685ee2653253eefe2d22eae9e187787c5b3b8","target":"graph","created_at":"2026-05-18T00:55:13Z","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 investigate anew the distribution of absolute carbon abundance, $A$(C) $= \\log\\,\\epsilon $(C), for carbon-enhanced metal-poor (CEMP) stars in the halo of the Milky Way, based on high-resolution spectroscopic data for a total sample of 305 CEMP stars. The sample includes 147 CEMP-$s$ (and CEMP-r/s) stars, 127 CEMP-no stars, and 31 CEMP stars that are unclassified, based on the currently employed [Ba/Fe] criterion. We confirm previous claims that the distribution of $A$(C) for CEMP stars is (at least) bimodal, with newly determined peaks centered on $A$(C)$=7.96$ (the high-C region) and $A$(C","authors_text":"Daniela Carollo, Ian U. Roederer, Jeff Zeanah, Jinmi Yoon, Kaitlin C. Rasmussen, Siyu He, Terese T. Hansen, Timothy C. Beers, Vinicius M. Placco","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-21T14:23:43Z","title":"Observational Constraints on First-Star Nucleosynthesis. I. Evidence for Multiple Progenitors of CEMP-no Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.06336","kind":"arxiv","version":3},"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:c9bd0fde8dd50e547976c14cd23468fa03f14bbe0d48d7d8c7f7d6004a60427c","target":"record","created_at":"2026-05-18T00:55:13Z","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":"58e4891c835dfb4b5a80b8305f632930d0abfcc75d35bfabd730de8724a19b60","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-21T14:23:43Z","title_canon_sha256":"cc867d8dbe03ba60a7a26c1053fcb68a42d0060fcd843de8b327a6f9ac450053"},"schema_version":"1.0","source":{"id":"1607.06336","kind":"arxiv","version":3}},"canonical_sha256":"e9ecc8e5eb5261edf8af844fa87200ec69ee531430697e5ebfb18a3b996ad2c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9ecc8e5eb5261edf8af844fa87200ec69ee531430697e5ebfb18a3b996ad2c1","first_computed_at":"2026-05-18T00:55:13.141830Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:13.141830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FYlUOR1EPQJrQRUymxxfc1qFX4B1cs0JHeKAAUFjGUiAXf35n6DZDzuHZusgTNk1t4/aWbSW+z5rSQ2fhnb/DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:13.142464Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.06336","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9bd0fde8dd50e547976c14cd23468fa03f14bbe0d48d7d8c7f7d6004a60427c","sha256:27d8e96aaa8a2713e4c4ddb3ee4685ee2653253eefe2d22eae9e187787c5b3b8"],"state_sha256":"9314171f248e68cd07d9ee2556cd0c5353c5aac584b70d42e6df61d7d333e4ed"}