{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:LWPJXGN24KQYY6U4VPM3PPJPGL","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":"dc723c24bf383dca156e614e14b6d60909e01e929a5a56a01fcb543c6dd7c1df","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-03-15T20:53:56Z","title_canon_sha256":"485b74debb8da1e66ee6a19a1e06d1f27e896966053349a6bee23b854cced154"},"schema_version":"1.0","source":{"id":"1103.3037","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.3037","created_at":"2026-05-18T04:26:44Z"},{"alias_kind":"arxiv_version","alias_value":"1103.3037v1","created_at":"2026-05-18T04:26:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3037","created_at":"2026-05-18T04:26:44Z"},{"alias_kind":"pith_short_12","alias_value":"LWPJXGN24KQY","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LWPJXGN24KQYY6U4","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LWPJXGN2","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:0fb23bb51932746e4163b89d20d914daa19ce9c878d676b2db4ee70a9d5d1986","target":"graph","created_at":"2026-05-18T04:26:44Z","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 study the oxygen abundance in five H II regions and seven planetary nebulae (PNe) located within 2 kpc from the Sun that have available spectra of high quality. Our analysis uses a similar procedure and the same atomic data to derive abundances in all the objects. The results calculated with collisionally excited lines for the H II regions indicate that the local interstellar medium is very homogeneous, with 12+log(O/H)=8.45-8.54. As for the PNe, six out of seven show significantly higher abundances: 12+log(O/H)=8.65-8.80. This overabundance of oxygen in PNe also holds when we consider the ","authors_text":"Gloria Delgado-Inglada, M\\'onica Rodr\\'iguez","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-03-15T20:53:56Z","title":"An overabundance of oxygen in planetary nebulae of the solar neighborhood"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3037","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":"sha256:2c209b3f5212326582309116f01669566b8087f7e9c208d1763b476fa29814e7","target":"record","created_at":"2026-05-18T04:26:44Z","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":"dc723c24bf383dca156e614e14b6d60909e01e929a5a56a01fcb543c6dd7c1df","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-03-15T20:53:56Z","title_canon_sha256":"485b74debb8da1e66ee6a19a1e06d1f27e896966053349a6bee23b854cced154"},"schema_version":"1.0","source":{"id":"1103.3037","kind":"arxiv","version":1}},"canonical_sha256":"5d9e9b99bae2a18c7a9cabd9b7bd2f32c7965671ad66c90e7106e451c4225db1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d9e9b99bae2a18c7a9cabd9b7bd2f32c7965671ad66c90e7106e451c4225db1","first_computed_at":"2026-05-18T04:26:44.967621Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:44.967621Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4yRK6ZMADKX4HOohEkvK1qhw0xcarlzP7Zi1izN7iBkKkRtrHraKUV8GwKVKSecwNQwgEE1QAzgpeNeytCcKBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:44.968042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.3037","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2c209b3f5212326582309116f01669566b8087f7e9c208d1763b476fa29814e7","sha256:0fb23bb51932746e4163b89d20d914daa19ce9c878d676b2db4ee70a9d5d1986"],"state_sha256":"24d6a3f9761b4bc0ecae99475d78e6eef723a3fa96db2a6d99d52a5036082854"}