{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:VGBJEEA7CFLWEGQ5QXLRKLH2LP","short_pith_number":"pith:VGBJEEA7","schema_version":"1.0","canonical_sha256":"a98292101f1157621a1d85d7152cfa5bf1bc020033643bd06c0bf6a35837508f","source":{"kind":"arxiv","id":"1101.0938","version":1},"attestation_state":"computed","paper":{"title":"Chemical composition of evolved stars in the open cluster IC 4651","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Angela Bragaglia, Eugenio Carretta, Gra\\v{z}ina Tautvai\\v{s}ien\\.e, Raffaele Gratton, \\v{S}ar\\=unas Mikolaitis","submitted_at":"2011-01-05T11:18:52Z","abstract_excerpt":"We present an analysis of high-resolution spectra of three core-helium-burning \"clump\" stars and two first ascent giants in the open cluster IC 4651. Atmospheric parameters (T_eff, log_g, v_t, and [Fe/H]) were determined in our previous study by Carretta et al. (2004). In this study we present abundances of C, N, O and up to 24 other chemical elements. Abundances of carbon were derived using the C_2 Swan (0,1) band head at 5635.5 A. The wavelength interval 7980-8130 A, with strong CN features, was analysed in order to determine nitrogen abundances and 12^C/13^C isotope ratios. The oxygen abund"},"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":"1101.0938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-01-05T11:18:52Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"02e0c3bbeb943a289625adeb290cc6539d7bf42395c0a8a1c41cced304a48829","abstract_canon_sha256":"d1b996b7a84f8ad42b6dbc3f0d8a861bcef6ef62f0c1dbd6c9bf37739a29be01"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:12.931288Z","signature_b64":"p4OlN2jkOi49NEjRuilkpYeq5GoE8ajRj8XqEsvkC+jcxz48vYgdKmk0wCxBpXBxn9nzb3LzTIDp8lMrb1jvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a98292101f1157621a1d85d7152cfa5bf1bc020033643bd06c0bf6a35837508f","last_reissued_at":"2026-05-18T02:04:12.930604Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:12.930604Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Chemical composition of evolved stars in the open cluster IC 4651","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Angela Bragaglia, Eugenio Carretta, Gra\\v{z}ina Tautvai\\v{s}ien\\.e, Raffaele Gratton, \\v{S}ar\\=unas Mikolaitis","submitted_at":"2011-01-05T11:18:52Z","abstract_excerpt":"We present an analysis of high-resolution spectra of three core-helium-burning \"clump\" stars and two first ascent giants in the open cluster IC 4651. Atmospheric parameters (T_eff, log_g, v_t, and [Fe/H]) were determined in our previous study by Carretta et al. (2004). In this study we present abundances of C, N, O and up to 24 other chemical elements. Abundances of carbon were derived using the C_2 Swan (0,1) band head at 5635.5 A. The wavelength interval 7980-8130 A, with strong CN features, was analysed in order to determine nitrogen abundances and 12^C/13^C isotope ratios. The oxygen abund"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0938","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":"1101.0938","created_at":"2026-05-18T02:04:12.930715+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.0938v1","created_at":"2026-05-18T02:04:12.930715+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.0938","created_at":"2026-05-18T02:04:12.930715+00:00"},{"alias_kind":"pith_short_12","alias_value":"VGBJEEA7CFLW","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"VGBJEEA7CFLWEGQ5","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"VGBJEEA7","created_at":"2026-05-18T12:26:44.992195+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/VGBJEEA7CFLWEGQ5QXLRKLH2LP","json":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP.json","graph_json":"https://pith.science/api/pith-number/VGBJEEA7CFLWEGQ5QXLRKLH2LP/graph.json","events_json":"https://pith.science/api/pith-number/VGBJEEA7CFLWEGQ5QXLRKLH2LP/events.json","paper":"https://pith.science/paper/VGBJEEA7"},"agent_actions":{"view_html":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP","download_json":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP.json","view_paper":"https://pith.science/paper/VGBJEEA7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.0938&json=true","fetch_graph":"https://pith.science/api/pith-number/VGBJEEA7CFLWEGQ5QXLRKLH2LP/graph.json","fetch_events":"https://pith.science/api/pith-number/VGBJEEA7CFLWEGQ5QXLRKLH2LP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP/action/storage_attestation","attest_author":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP/action/author_attestation","sign_citation":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP/action/citation_signature","submit_replication":"https://pith.science/pith/VGBJEEA7CFLWEGQ5QXLRKLH2LP/action/replication_record"}},"created_at":"2026-05-18T02:04:12.930715+00:00","updated_at":"2026-05-18T02:04:12.930715+00:00"}