{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:32NDFCGG5EQRQCOEXCXDH635D3","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":"d7769456d005a81cab9176baa0bc6c92fda1ad01aa951ade32f2fb51b5562d14","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-06T00:39:59Z","title_canon_sha256":"5fe615073acdb326a05a294f75571c8b1fbd7f450baba2bd6e8a94b1a2f18ca4"},"schema_version":"1.0","source":{"id":"1708.01826","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.01826","created_at":"2026-05-18T00:36:27Z"},{"alias_kind":"arxiv_version","alias_value":"1708.01826v1","created_at":"2026-05-18T00:36:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01826","created_at":"2026-05-18T00:36:27Z"},{"alias_kind":"pith_short_12","alias_value":"32NDFCGG5EQR","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"32NDFCGG5EQRQCOE","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"32NDFCGG","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:47d22d9fb2fe4d8ea0448249552250f94461d700793a1e9d423658f55bb2f8a0","target":"graph","created_at":"2026-05-18T00:36:27Z","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 examine the biases inherent to chemical abundance distributions when targets are selected from the red giant branch (RGB), using simulated giant branches created from isochrones. We find that even when stars are chosen from the entire colour range of RGB stars and over a broad range of magnitudes, the relative numbers of stars of different ages and metallicities, integrated over all stellar types, are not accurately represented in the giant branch sample. The result is that metallicity distribution functions derived from RGB star samples require a correction before they can be fit by chemic","authors_text":"Andrew A. Cole, Ellen M. Manning","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-06T00:39:59Z","title":"From K giants to G dwarfs: stellar lifetime effects on metallicity distributions derived from red giants"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01826","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":"sha256:82e9d8c2517410bee177ffeffa38ff4ea5b3056debb3c617143d292fe108f47a","target":"record","created_at":"2026-05-18T00:36:27Z","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":"d7769456d005a81cab9176baa0bc6c92fda1ad01aa951ade32f2fb51b5562d14","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-06T00:39:59Z","title_canon_sha256":"5fe615073acdb326a05a294f75571c8b1fbd7f450baba2bd6e8a94b1a2f18ca4"},"schema_version":"1.0","source":{"id":"1708.01826","kind":"arxiv","version":1}},"canonical_sha256":"de9a3288c6e9211809c4b8ae33fb7d1ed3cc12babb6664f61fee0e1e63c375e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de9a3288c6e9211809c4b8ae33fb7d1ed3cc12babb6664f61fee0e1e63c375e4","first_computed_at":"2026-05-18T00:36:27.885694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:27.885694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LRDUfE30Sg2FHTLwpwS7Bib57JEKunTiMBtff8rIOmGeiP5lBOa8lcRD2pjnvqGyljvx8KDRa3A/waSG/bdnDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:27.886308Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.01826","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82e9d8c2517410bee177ffeffa38ff4ea5b3056debb3c617143d292fe108f47a","sha256:47d22d9fb2fe4d8ea0448249552250f94461d700793a1e9d423658f55bb2f8a0"],"state_sha256":"1958511af03f5b0f635ad66c6767fa46c45e35dfb48cbd6ef83de316ff65dfb4"}