{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:3ZLSUQROZARYJAJY3J4HOWWJIL","short_pith_number":"pith:3ZLSUQRO","schema_version":"1.0","canonical_sha256":"de572a422ec823848138da78775ac942d315bebc1d9a4c9e402fb1167e641d5c","source":{"kind":"arxiv","id":"1605.05732","version":1},"attestation_state":"computed","paper":{"title":"The chemical evolution of the Bootes I ultra-faint dwarf galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Anna Frebel (MIT), Gerard Gilmore (IoA), John E. Norris (ANU), Rosemary F. G. Wyse (JHU)","submitted_at":"2016-05-18T20:00:03Z","abstract_excerpt":"We present chemical abundance measurements of two metal-poor red giant stars in the ultra-faint dwarf galaxy Bootes I, based on Magellan/MIKE high-resolution spectra. For Boo I-980, with [Fe/H]=-3.1, we present the first elemental abundance measurements while Boo I-127, with [Fe/H]=-2.0, shows abundances in good agreement with previous measurements. Light and iron-peak element abundance ratios in the two Bootes I stars, as well as those of most other Boootes I members, collected from the literature, closely resemble those of regular metal-poor halo stars. Neutron-capture element abundances Sr "},"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":"1605.05732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-05-18T20:00:03Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a9601185abb8c01cb2f396f2493d55e5f0800f1fe2ae85662090d21f534e71f3","abstract_canon_sha256":"bde1583f50227355ffc1e0f5a8c548f7d1cc5ea8cde748d7e04774640bdf30a5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:02.977389Z","signature_b64":"DuOUzN+LJrMLehbKk8T2v6zHnDSKqPSxAkVPL2MF7IEzQNZ0ymaOC3NFArKAqfpCLil1TRImTTs4u4BvsNkLDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de572a422ec823848138da78775ac942d315bebc1d9a4c9e402fb1167e641d5c","last_reissued_at":"2026-05-18T01:10:02.976898Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:02.976898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The chemical evolution of the Bootes I ultra-faint dwarf galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Anna Frebel (MIT), Gerard Gilmore (IoA), John E. Norris (ANU), Rosemary F. G. Wyse (JHU)","submitted_at":"2016-05-18T20:00:03Z","abstract_excerpt":"We present chemical abundance measurements of two metal-poor red giant stars in the ultra-faint dwarf galaxy Bootes I, based on Magellan/MIKE high-resolution spectra. For Boo I-980, with [Fe/H]=-3.1, we present the first elemental abundance measurements while Boo I-127, with [Fe/H]=-2.0, shows abundances in good agreement with previous measurements. Light and iron-peak element abundance ratios in the two Bootes I stars, as well as those of most other Boootes I members, collected from the literature, closely resemble those of regular metal-poor halo stars. Neutron-capture element abundances Sr "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.05732","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":"1605.05732","created_at":"2026-05-18T01:10:02.976985+00:00"},{"alias_kind":"arxiv_version","alias_value":"1605.05732v1","created_at":"2026-05-18T01:10:02.976985+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.05732","created_at":"2026-05-18T01:10:02.976985+00:00"},{"alias_kind":"pith_short_12","alias_value":"3ZLSUQROZARY","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_16","alias_value":"3ZLSUQROZARYJAJY","created_at":"2026-05-18T12:29:58.707656+00:00"},{"alias_kind":"pith_short_8","alias_value":"3ZLSUQRO","created_at":"2026-05-18T12:29:58.707656+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL","json":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL.json","graph_json":"https://pith.science/api/pith-number/3ZLSUQROZARYJAJY3J4HOWWJIL/graph.json","events_json":"https://pith.science/api/pith-number/3ZLSUQROZARYJAJY3J4HOWWJIL/events.json","paper":"https://pith.science/paper/3ZLSUQRO"},"agent_actions":{"view_html":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL","download_json":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL.json","view_paper":"https://pith.science/paper/3ZLSUQRO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1605.05732&json=true","fetch_graph":"https://pith.science/api/pith-number/3ZLSUQROZARYJAJY3J4HOWWJIL/graph.json","fetch_events":"https://pith.science/api/pith-number/3ZLSUQROZARYJAJY3J4HOWWJIL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL/action/storage_attestation","attest_author":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL/action/author_attestation","sign_citation":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL/action/citation_signature","submit_replication":"https://pith.science/pith/3ZLSUQROZARYJAJY3J4HOWWJIL/action/replication_record"}},"created_at":"2026-05-18T01:10:02.976985+00:00","updated_at":"2026-05-18T01:10:02.976985+00:00"}