{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3QVJAY4RCLIGHAZYYPSXFFDF3H","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":"9de1a1e66630f7970f12df0892be9a1805ef5ef67b9f2c442e02f4c46d64bcb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-29T16:53:23Z","title_canon_sha256":"129c52f1f2c1b671757be75bbbaf9c85fde7786605acd985897e0ab710b654df"},"schema_version":"1.0","source":{"id":"1010.6272","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.6272","created_at":"2026-05-18T02:04:54Z"},{"alias_kind":"arxiv_version","alias_value":"1010.6272v1","created_at":"2026-05-18T02:04:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.6272","created_at":"2026-05-18T02:04:54Z"},{"alias_kind":"pith_short_12","alias_value":"3QVJAY4RCLIG","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3QVJAY4RCLIGHAZY","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3QVJAY4R","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:a2ba3abed952b2e93978961cbfdd396eb544fa258e7a0bc92a530a5d12a3067b","target":"graph","created_at":"2026-05-18T02:04:54Z","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 discuss the characteristics of known extremely metal-poor (EMP) stars in the Galaxy using the Stellar Abundances for Galactic Archaeology (SAGA) database (Suda et al. 2008, PASJ, 60, 1159).The analyses of carbon-enhanced stars in our sample suggest that the nucleosynthesis in AGB stars can contribute to the carbon enrichment in a different way depending on whether the metallicity is above or below [Fe/H] ~ -2.5, which is consistent with the current models of stellar evolution at low metallicity. We find the transition of the initial mass function at [Fe/H] ~ -2 in the viewpoint of the distr","authors_text":"Chikako Ishizuka, Masayuki Y. Fujimoto, Shimako Yamada, Takuma Suda, Wako Aoki, Yutaka Katsuta, Yutaka Komiya","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-29T16:53:23Z","title":"The Stellar Abundances for Galactic Archaeology (SAGA) Database II - Implications for Mixing and Nucleosynthesis in Extremely Metal-Poor Stars and Chemical Enrichment of the Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.6272","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:ddeb3c49afeaf764fc02b9d5c907b354befc38142d85bb3c1e6de5aad69e35ee","target":"record","created_at":"2026-05-18T02:04:54Z","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":"9de1a1e66630f7970f12df0892be9a1805ef5ef67b9f2c442e02f4c46d64bcb5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-10-29T16:53:23Z","title_canon_sha256":"129c52f1f2c1b671757be75bbbaf9c85fde7786605acd985897e0ab710b654df"},"schema_version":"1.0","source":{"id":"1010.6272","kind":"arxiv","version":1}},"canonical_sha256":"dc2a90639112d0638338c3e5729465d9d78642c749240540b2a55ca5de3d1787","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc2a90639112d0638338c3e5729465d9d78642c749240540b2a55ca5de3d1787","first_computed_at":"2026-05-18T02:04:54.833332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:54.833332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qlm1rFWRFSCWQcXAuuc/zfflyQBeX6mfLQBwLybmhxFbqFNFaTpJ5k0oXSF6e4iHiq+7G4pNWeN6EKSyjlhZAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:54.833795Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.6272","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ddeb3c49afeaf764fc02b9d5c907b354befc38142d85bb3c1e6de5aad69e35ee","sha256:a2ba3abed952b2e93978961cbfdd396eb544fa258e7a0bc92a530a5d12a3067b"],"state_sha256":"8140dd4b4e10f2f44d2464b9f06475fbe720ea7449386bc9a5fcee4cc4f64822"}