{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:DWS4RQKSLVDZ5V4Q6BXGWOKIVQ","short_pith_number":"pith:DWS4RQKS","schema_version":"1.0","canonical_sha256":"1da5c8c1525d479ed790f06e6b3948ac155ee4e982c536496f6e19baf4c948be","source":{"kind":"arxiv","id":"1611.06400","version":1},"attestation_state":"computed","paper":{"title":"The puzzle of the CNO isotope ratios in AGB carbon stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Carlos Abia, Inma Dom\\'inguez, Oscar Straniero, Rub\\'en P. Hedrosa","submitted_at":"2016-11-19T17:15:25Z","abstract_excerpt":"Previous determinations of the oxygen isotopic ratios in AGB carbon stars were at odds with the existing theoretical predictions. We aim to redetermine the oxygen ratios in these stars using new spectral analysis tools and further develop discussions on the carbon and nitrogen isotopic ratios in order to elucidate this problem. Oxygen isotopic ratios were derived from spectra in the K-band in a sample of galactic AGB carbon stars of different spectral types and near solar metallicity. Synthetic spectra calculated in LTE with spherical carbon-rich atmosphere models and updated molecular line li"},"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":"1611.06400","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-19T17:15:25Z","cross_cats_sorted":[],"title_canon_sha256":"1fccdee5b51bcd5f1caf9e06781237f1449e1fdbdc0ceac963249e9d5419e7b5","abstract_canon_sha256":"7c45aa404f71dd608989e185e88694e74516276fcefe1bd529b29dcb9763579f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:11.707024Z","signature_b64":"uHMITxhtKKwP+CmWrc4qdpuXXUmLBTGM0Jzy9Ixjf6nMbvh+hsWCUmqZCK4Q+km/ZXyd6HtscAhfLTcojEG+Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1da5c8c1525d479ed790f06e6b3948ac155ee4e982c536496f6e19baf4c948be","last_reissued_at":"2026-05-18T00:49:11.706348Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:11.706348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The puzzle of the CNO isotope ratios in AGB carbon stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Carlos Abia, Inma Dom\\'inguez, Oscar Straniero, Rub\\'en P. Hedrosa","submitted_at":"2016-11-19T17:15:25Z","abstract_excerpt":"Previous determinations of the oxygen isotopic ratios in AGB carbon stars were at odds with the existing theoretical predictions. We aim to redetermine the oxygen ratios in these stars using new spectral analysis tools and further develop discussions on the carbon and nitrogen isotopic ratios in order to elucidate this problem. Oxygen isotopic ratios were derived from spectra in the K-band in a sample of galactic AGB carbon stars of different spectral types and near solar metallicity. Synthetic spectra calculated in LTE with spherical carbon-rich atmosphere models and updated molecular line li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.06400","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":"1611.06400","created_at":"2026-05-18T00:49:11.706464+00:00"},{"alias_kind":"arxiv_version","alias_value":"1611.06400v1","created_at":"2026-05-18T00:49:11.706464+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.06400","created_at":"2026-05-18T00:49:11.706464+00:00"},{"alias_kind":"pith_short_12","alias_value":"DWS4RQKSLVDZ","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"DWS4RQKSLVDZ5V4Q","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"DWS4RQKS","created_at":"2026-05-18T12:30:12.583610+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.11074","citing_title":"Observational Signatures and Constraints on the Intermediate Neutron-Capture Process. The Case of the CEMP star TYC 6044-714-1 (RAVE J094921.8-161722)","ref_index":5,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ","json":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ.json","graph_json":"https://pith.science/api/pith-number/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/graph.json","events_json":"https://pith.science/api/pith-number/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/events.json","paper":"https://pith.science/paper/DWS4RQKS"},"agent_actions":{"view_html":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ","download_json":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ.json","view_paper":"https://pith.science/paper/DWS4RQKS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1611.06400&json=true","fetch_graph":"https://pith.science/api/pith-number/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/graph.json","fetch_events":"https://pith.science/api/pith-number/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/action/storage_attestation","attest_author":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/action/author_attestation","sign_citation":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/action/citation_signature","submit_replication":"https://pith.science/pith/DWS4RQKSLVDZ5V4Q6BXGWOKIVQ/action/replication_record"}},"created_at":"2026-05-18T00:49:11.706464+00:00","updated_at":"2026-05-18T00:49:11.706464+00:00"}