{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:XKGOAM5IME52UWLXGHQZVRUHFE","short_pith_number":"pith:XKGOAM5I","schema_version":"1.0","canonical_sha256":"ba8ce033a8613baa597731e19ac687292cb9c1bef4c621999dbdd61407d5716d","source":{"kind":"arxiv","id":"1105.0366","version":1},"attestation_state":"computed","paper":{"title":"The oxygen vs. sodium (anti)correlation(s) in omega Cen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. D'Ercole, A.F. Marino, A.P. Milone, E. Vesperini, F. D'Antona, P. Ventura","submitted_at":"2011-05-02T15:52:58Z","abstract_excerpt":"Recent exam of large samples of omega Cen giants shows that it shares with mono-metallic globular clusters the presence of the sodium versus oxygen anticorrelation, within each subset of stars with iron content in the range -1.9<~[Fe/H]<~-1.3. These findings suggest that, while the second generation formation history in omega Cen is more complex than that of mono-metallic clusters, it shares some key steps with those simpler cluster. In addition, the giants in the range -1.3<[Fe/H]<~-0.7 show a direct O--Na correlation, at moderately low O, but Na up to 20 times solar. These peculiar Na abunda"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1105.0366","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-05-02T15:52:58Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"c22a531ff8e445b0d8d33072e4d84c625a84a7eb567e49977709557e45060a5c","abstract_canon_sha256":"3e88887d2d01409b460c4fda4cf4ba51e96f482a28884aada47a537e6455a65d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:10.180936Z","signature_b64":"qRwwABopvQPLBCzUQrzLBvYd+l1Br03egb8epZ0lnmR/9JISvkKhZA02CCGrPQzThifDqk6bTZLDmjZwNmfSDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba8ce033a8613baa597731e19ac687292cb9c1bef4c621999dbdd61407d5716d","last_reissued_at":"2026-05-18T02:02:10.180444Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:10.180444Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The oxygen vs. sodium (anti)correlation(s) in omega Cen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. D'Ercole, A.F. Marino, A.P. Milone, E. Vesperini, F. D'Antona, P. Ventura","submitted_at":"2011-05-02T15:52:58Z","abstract_excerpt":"Recent exam of large samples of omega Cen giants shows that it shares with mono-metallic globular clusters the presence of the sodium versus oxygen anticorrelation, within each subset of stars with iron content in the range -1.9<~[Fe/H]<~-1.3. These findings suggest that, while the second generation formation history in omega Cen is more complex than that of mono-metallic clusters, it shares some key steps with those simpler cluster. In addition, the giants in the range -1.3<[Fe/H]<~-0.7 show a direct O--Na correlation, at moderately low O, but Na up to 20 times solar. These peculiar Na abunda"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.0366","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1105.0366","created_at":"2026-05-18T02:02:10.180521+00:00"},{"alias_kind":"arxiv_version","alias_value":"1105.0366v1","created_at":"2026-05-18T02:02:10.180521+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.0366","created_at":"2026-05-18T02:02:10.180521+00:00"},{"alias_kind":"pith_short_12","alias_value":"XKGOAM5IME52","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_16","alias_value":"XKGOAM5IME52UWLX","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_8","alias_value":"XKGOAM5I","created_at":"2026-05-18T12:26:47.523578+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE","json":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE.json","graph_json":"https://pith.science/api/pith-number/XKGOAM5IME52UWLXGHQZVRUHFE/graph.json","events_json":"https://pith.science/api/pith-number/XKGOAM5IME52UWLXGHQZVRUHFE/events.json","paper":"https://pith.science/paper/XKGOAM5I"},"agent_actions":{"view_html":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE","download_json":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE.json","view_paper":"https://pith.science/paper/XKGOAM5I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1105.0366&json=true","fetch_graph":"https://pith.science/api/pith-number/XKGOAM5IME52UWLXGHQZVRUHFE/graph.json","fetch_events":"https://pith.science/api/pith-number/XKGOAM5IME52UWLXGHQZVRUHFE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE/action/storage_attestation","attest_author":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE/action/author_attestation","sign_citation":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE/action/citation_signature","submit_replication":"https://pith.science/pith/XKGOAM5IME52UWLXGHQZVRUHFE/action/replication_record"}},"created_at":"2026-05-18T02:02:10.180521+00:00","updated_at":"2026-05-18T02:02:10.180521+00:00"}