{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:CTASO55DOG22AA7QJSFCEZZDVD","short_pith_number":"pith:CTASO55D","schema_version":"1.0","canonical_sha256":"14c12777a371b5a003f04c8a226723a8db87264c5103a4d430e9947a5e56f33c","source":{"kind":"arxiv","id":"1402.6328","version":1},"attestation_state":"computed","paper":{"title":"The metal-poor Knee in the Fornax Dwarf Spheroidal Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andreas Koch, Benjamin Hendricks, Christian I. Johnson, Corrado Boeche, Gerard Gilmore, Gustavo A. Lanfranchi, Jorge Penarrubia, Matthew Walker","submitted_at":"2014-02-25T21:00:24Z","abstract_excerpt":"We present alpha-element abundances of Mg, Si, and Ti for a large sample of field stars in two outer fields of the Fornax dwarf spheroidal galaxy (dSph), obtained with VLT/GIRAFFE (R~16,000). Due to the large fraction of metal-poor stars in our sample, we are able to follow the alpha-element evolution from [Fe/H]=-2.5 continuously to [Fe/H]=-0.7 dex. For the first time we are able to resolve the turnover from the Type II supernovae (SNe) dominated, alpha-enhanced plateau down to subsolar [alpha/Fe] values due to the onset of SNe Ia, and thus to trace the chemical enrichment efficiency of the g"},"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":"1402.6328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-25T21:00:24Z","cross_cats_sorted":[],"title_canon_sha256":"9850cedb12629254c2417fb3605c829633108f14dd85d990f9bfc1e682b3916e","abstract_canon_sha256":"db79413f555fc27745c02ddf5969c22a5df8f310be872d7dae347464386084fe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:27.256827Z","signature_b64":"o9d9EJpPtpA1lXbCckxRSOu0vlPoG4+QlDIDMr52jqJUats7+ksVqPE99qm+0nmi0IdYsfe1sej6SC1E8TYSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14c12777a371b5a003f04c8a226723a8db87264c5103a4d430e9947a5e56f33c","last_reissued_at":"2026-05-18T01:44:27.256309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:27.256309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The metal-poor Knee in the Fornax Dwarf Spheroidal Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andreas Koch, Benjamin Hendricks, Christian I. Johnson, Corrado Boeche, Gerard Gilmore, Gustavo A. Lanfranchi, Jorge Penarrubia, Matthew Walker","submitted_at":"2014-02-25T21:00:24Z","abstract_excerpt":"We present alpha-element abundances of Mg, Si, and Ti for a large sample of field stars in two outer fields of the Fornax dwarf spheroidal galaxy (dSph), obtained with VLT/GIRAFFE (R~16,000). Due to the large fraction of metal-poor stars in our sample, we are able to follow the alpha-element evolution from [Fe/H]=-2.5 continuously to [Fe/H]=-0.7 dex. For the first time we are able to resolve the turnover from the Type II supernovae (SNe) dominated, alpha-enhanced plateau down to subsolar [alpha/Fe] values due to the onset of SNe Ia, and thus to trace the chemical enrichment efficiency of the g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.6328","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":"1402.6328","created_at":"2026-05-18T01:44:27.256408+00:00"},{"alias_kind":"arxiv_version","alias_value":"1402.6328v1","created_at":"2026-05-18T01:44:27.256408+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.6328","created_at":"2026-05-18T01:44:27.256408+00:00"},{"alias_kind":"pith_short_12","alias_value":"CTASO55DOG22","created_at":"2026-05-18T12:28:22.404517+00:00"},{"alias_kind":"pith_short_16","alias_value":"CTASO55DOG22AA7Q","created_at":"2026-05-18T12:28:22.404517+00:00"},{"alias_kind":"pith_short_8","alias_value":"CTASO55D","created_at":"2026-05-18T12:28:22.404517+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/CTASO55DOG22AA7QJSFCEZZDVD","json":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD.json","graph_json":"https://pith.science/api/pith-number/CTASO55DOG22AA7QJSFCEZZDVD/graph.json","events_json":"https://pith.science/api/pith-number/CTASO55DOG22AA7QJSFCEZZDVD/events.json","paper":"https://pith.science/paper/CTASO55D"},"agent_actions":{"view_html":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD","download_json":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD.json","view_paper":"https://pith.science/paper/CTASO55D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1402.6328&json=true","fetch_graph":"https://pith.science/api/pith-number/CTASO55DOG22AA7QJSFCEZZDVD/graph.json","fetch_events":"https://pith.science/api/pith-number/CTASO55DOG22AA7QJSFCEZZDVD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD/action/storage_attestation","attest_author":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD/action/author_attestation","sign_citation":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD/action/citation_signature","submit_replication":"https://pith.science/pith/CTASO55DOG22AA7QJSFCEZZDVD/action/replication_record"}},"created_at":"2026-05-18T01:44:27.256408+00:00","updated_at":"2026-05-18T01:44:27.256408+00:00"}