{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:YPMG3EZENE2URWXC352XR462MN","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":"646cdb1e1acc2ddd31e172dd7ed2bf0ab6b3aedbaf50b20a8b546e5e1b039f00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-07T13:03:23Z","title_canon_sha256":"1724ef955f0e2147f802ae85ec4bea4b5db3caacbef1744c7259f791229e28b5"},"schema_version":"1.0","source":{"id":"1201.1554","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1554","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1554v1","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1554","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"pith_short_12","alias_value":"YPMG3EZENE2U","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"YPMG3EZENE2URWXC","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"YPMG3EZE","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:90d910cfdc5ee5e0c7b1bf88ffd4c04482838ab52e4ee38220508e0d816f4570","target":"graph","created_at":"2026-05-18T01:58:54Z","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 have compared the oxygen and nitrogen abundances derived from global emission-line SDSS spectra of galaxies using (1) the Te method and (2) two recent strong line calibrations: the ON and NS calibrations. Using the Te method, anomously high N/O abundances ratios have been found in some SDSS galaxies. To investigate this, we have Monte Carlo simulated the global spectra of composite nebulae by a mix of spectra of individual components, based on spectra of well-studied HII regions in nearby galaxies. We found that the Te method results in an underestimated oxygen abundance (and hence in an ov","authors_text":"Denmark), J.M. Vilchez (IAA, L. Mattsson (University of Copenhagen, L.S. Pilyugin (MAO, Spain), T.X. Thuan (University of Virginia), Ukraine)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-07T13:03:23Z","title":"Abundance determination from global emission-line SDSS spectra: exploring objects with high N/O ratios"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1554","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:b69be019bc0328c9ebc43b79a22cc9aaabe76b54c1b15bae5614803b9e20c339","target":"record","created_at":"2026-05-18T01:58:54Z","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":"646cdb1e1acc2ddd31e172dd7ed2bf0ab6b3aedbaf50b20a8b546e5e1b039f00","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-07T13:03:23Z","title_canon_sha256":"1724ef955f0e2147f802ae85ec4bea4b5db3caacbef1744c7259f791229e28b5"},"schema_version":"1.0","source":{"id":"1201.1554","kind":"arxiv","version":1}},"canonical_sha256":"c3d86d9324693548dae2df7578f3da635f82c67d328c6959cbf72c76cbe00732","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3d86d9324693548dae2df7578f3da635f82c67d328c6959cbf72c76cbe00732","first_computed_at":"2026-05-18T01:58:54.534574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:54.534574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0iAMKSDKnGPSSBy7saGAc1/LaA1aQk10gfBeAabUxBe74A7pbL8qFEcafVTGp4DqC1uRsWdBV54CxU+8TiB/Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:54.535337Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1554","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b69be019bc0328c9ebc43b79a22cc9aaabe76b54c1b15bae5614803b9e20c339","sha256:90d910cfdc5ee5e0c7b1bf88ffd4c04482838ab52e4ee38220508e0d816f4570"],"state_sha256":"7e6e84b74f5917cac81285bb6bd08809666b95f02ae6ef2ce7bcba59e2400721"}