{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:TSX6KR5IG5EVIZ4ARGB6TH3AXN","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":"f31827b205ef080d67e3b89223bb2587d0e5469a2d13aa940b029f533ed32ddb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-04-09T20:00:00Z","title_canon_sha256":"6a66bea5cfc1827db627a7ca29b5e14da3e6849894d90efd1a6df4a4715ffc3e"},"schema_version":"1.0","source":{"id":"1304.2764","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.2764","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"arxiv_version","alias_value":"1304.2764v1","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.2764","created_at":"2026-05-18T01:50:40Z"},{"alias_kind":"pith_short_12","alias_value":"TSX6KR5IG5EV","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"TSX6KR5IG5EVIZ4A","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"TSX6KR5I","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:22a8aa12a0f6672bae7262eac58764d167f7e9e06f225fb697d21cb47c7ba0b4","target":"graph","created_at":"2026-05-18T01:50:40Z","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 present an assessment of the barium abundance ratios for red giant member stars in the faint Hercules dwarf spheroidal (dSph) galaxy. Our results are drawn from intermediate-resolution FLAMES/GIRAFFE spectra around the Ba II 6141.71 AA absorption line at low signal-to-noise ratios. For three brighter stars we were able to gain estimates from direct equivalent-width measurements, while for the remaining eight stars only upper limits could be obtained. These results are investigated in a statistical manner and indicate very low Ba abundances of log epsilon (Ba) < 0.7 dex (3 sigma). We discuss","authors_text":"Andreas Koch, Daniel Aden, Francesca Matteucci, Sofia Feltzing","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-04-09T20:00:00Z","title":"Neutron-capture element deficiency of the Hercules dwarf spheroidal galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.2764","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":"sha256:0b4ab1d3afed7316fe03fe4b30492a21f6b14ce732ee8a20dd043e676e11429f","target":"record","created_at":"2026-05-18T01:50:40Z","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":"f31827b205ef080d67e3b89223bb2587d0e5469a2d13aa940b029f533ed32ddb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-04-09T20:00:00Z","title_canon_sha256":"6a66bea5cfc1827db627a7ca29b5e14da3e6849894d90efd1a6df4a4715ffc3e"},"schema_version":"1.0","source":{"id":"1304.2764","kind":"arxiv","version":1}},"canonical_sha256":"9cafe547a837495467808983e99f60bb42a2842c189399c27de9faca2b565091","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cafe547a837495467808983e99f60bb42a2842c189399c27de9faca2b565091","first_computed_at":"2026-05-18T01:50:40.903467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:40.903467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OPLUiOyaVWm+E5DCmZ8zO23txdFUY6PBieg/JM1hQ16dUiQZkaZ1LdyfmPov4ZZse+IUEprJCYUWkvX2A+2/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:40.904138Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.2764","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b4ab1d3afed7316fe03fe4b30492a21f6b14ce732ee8a20dd043e676e11429f","sha256:22a8aa12a0f6672bae7262eac58764d167f7e9e06f225fb697d21cb47c7ba0b4"],"state_sha256":"ac85ad7d6391d80e3ffec73a8e0a2e8d802090dbbf7219fb7ece3ea0a3afe842"}