{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SMXUY2TWPCKNOVYDE33DWZFLF6","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":"890c91e0298d57f5f868b397c9ddbaa6336b3e48b1751821faf8c76cad64889b","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-19T20:32:03Z","title_canon_sha256":"87a51d83dfd1ac9544b66f780c72a8dda59fd1c2e08aaa557b59a2bd79ddb078"},"schema_version":"1.0","source":{"id":"1409.5810","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.5810","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1409.5810v1","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.5810","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"SMXUY2TWPCKN","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SMXUY2TWPCKNOVYD","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SMXUY2TW","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:cf23c3271818c6d29f5690d43b255f7ecb96fb5dbc23107a8c91a338494bc5a7","target":"graph","created_at":"2026-05-18T01:41:59Z","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 report the discovery of nine metal-poor stars with high levels of r-process enhancement (+0.81<[Eu/Fe]<+1.13), including six subgiants and three stars on the red horizontal branch. We also analyze four previously-known r-process-enhanced metal-poor red giants. From this sample of 13 stars, we draw the following conclusions. (1) High levels of r-process enhancement are found in a broad range of stellar evolutionary states, reaffirming that this phenomenon is not associated with a chemical peculiarity of red giant atmospheres. (2) Only 1 of 10 stars observed at multiple epochs shows radial ve","authors_text":"Chris Sneden (U. Texas), George W. Preston, Ian B. Thompson (Carnegie Observatories), Ian U. Roederer (U. Michigan), John J. Cowan (U. Oklahoma), Stephen A. Shectman (Carnegie Observatories)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-19T20:32:03Z","title":"Nine New Metal-Poor Stars on the Subgiant and Red Horizontal Branches with High Levels of r-process Enhancement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.5810","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:c6054bf93621c05e7f6937a0ac119d9422a0f5e80830f678f0b9e4357092e240","target":"record","created_at":"2026-05-18T01:41:59Z","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":"890c91e0298d57f5f868b397c9ddbaa6336b3e48b1751821faf8c76cad64889b","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-19T20:32:03Z","title_canon_sha256":"87a51d83dfd1ac9544b66f780c72a8dda59fd1c2e08aaa557b59a2bd79ddb078"},"schema_version":"1.0","source":{"id":"1409.5810","kind":"arxiv","version":1}},"canonical_sha256":"932f4c6a767894d7570326f63b64ab2f87759af1c883a05cde12894b2603b9dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"932f4c6a767894d7570326f63b64ab2f87759af1c883a05cde12894b2603b9dd","first_computed_at":"2026-05-18T01:41:59.362280Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:59.362280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mG0DpvrijWiuGFJMrBucb7Os0upxxx+3D1xH4N8rmBIoRfp/b3Se8hVnRx3noLsuhs5lqlsiOfF571FP9C4iCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:59.362798Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.5810","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6054bf93621c05e7f6937a0ac119d9422a0f5e80830f678f0b9e4357092e240","sha256:cf23c3271818c6d29f5690d43b255f7ecb96fb5dbc23107a8c91a338494bc5a7"],"state_sha256":"901f2e2985295ecffc75c764c0bf1b7620f0af676c9708c7f0a4b77ebe88b5b2"}