{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:KJ2Z4LH46UGM4T6RUCXWAOYUYR","short_pith_number":"pith:KJ2Z4LH4","schema_version":"1.0","canonical_sha256":"52759e2cfcf50cce4fd1a0af603b14c4523dea4b08b336ca511b603938a49439","source":{"kind":"arxiv","id":"1012.2383","version":1},"attestation_state":"computed","paper":{"title":"Stellar metallicities beyond the Local Group: the potential of J-band spectroscopy with extremely large telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"B. Davies, C. J. Evans (UK ATC), D. F. Figer, G. Rousset, J.-G. Cuby, M. D Lehnert, M. Puech, R.-P. Kudritzki, S. L. Morris, Y. Yang","submitted_at":"2010-12-10T21:00:07Z","abstract_excerpt":"We present simulated J-band spectroscopy of red giants and supergiants with a 42m European Extremely Large Telescope (E-ELT), using tools developed toward the EAGLE Phase A instrument study. The simulated spectra are used to demonstrate the validity of the 1.15-1.22 micron region to recover accurate stellar metallicities from Solar and metal-poor (one tenth Solar) spectral templates. From tests at spectral resolving powers of four and ten thousand, we require continuum signal-to-noise ratios in excess of 50 (per two-pixel resolution element) to recover the input metallicity to within 0.1 dex. "},"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":"1012.2383","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2010-12-10T21:00:07Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"61513d3aba5d3d4bf5b66bc9431077242812b6d0ed3a236d488b4a72c42c3561","abstract_canon_sha256":"17df4b59f2c94ca1c3f431ebb06588b8cfd08165fb6b8dd6423a4169e7c466d4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:30.295700Z","signature_b64":"bqeRq0Tvw8MdAoAGpBVA8TLBsPhjbNDdL5fOsKQbuKHhY+3vvrH1StyVALW9cDMZLf6k5um+ertRuZa7PSguDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52759e2cfcf50cce4fd1a0af603b14c4523dea4b08b336ca511b603938a49439","last_reissued_at":"2026-05-18T02:04:30.295126Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:30.295126Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stellar metallicities beyond the Local Group: the potential of J-band spectroscopy with extremely large telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"B. Davies, C. J. Evans (UK ATC), D. F. Figer, G. Rousset, J.-G. Cuby, M. D Lehnert, M. Puech, R.-P. Kudritzki, S. L. Morris, Y. Yang","submitted_at":"2010-12-10T21:00:07Z","abstract_excerpt":"We present simulated J-band spectroscopy of red giants and supergiants with a 42m European Extremely Large Telescope (E-ELT), using tools developed toward the EAGLE Phase A instrument study. The simulated spectra are used to demonstrate the validity of the 1.15-1.22 micron region to recover accurate stellar metallicities from Solar and metal-poor (one tenth Solar) spectral templates. From tests at spectral resolving powers of four and ten thousand, we require continuum signal-to-noise ratios in excess of 50 (per two-pixel resolution element) to recover the input metallicity to within 0.1 dex. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.2383","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":"1012.2383","created_at":"2026-05-18T02:04:30.295215+00:00"},{"alias_kind":"arxiv_version","alias_value":"1012.2383v1","created_at":"2026-05-18T02:04:30.295215+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.2383","created_at":"2026-05-18T02:04:30.295215+00:00"},{"alias_kind":"pith_short_12","alias_value":"KJ2Z4LH46UGM","created_at":"2026-05-18T12:26:09.077623+00:00"},{"alias_kind":"pith_short_16","alias_value":"KJ2Z4LH46UGM4T6R","created_at":"2026-05-18T12:26:09.077623+00:00"},{"alias_kind":"pith_short_8","alias_value":"KJ2Z4LH4","created_at":"2026-05-18T12:26:09.077623+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/KJ2Z4LH46UGM4T6RUCXWAOYUYR","json":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR.json","graph_json":"https://pith.science/api/pith-number/KJ2Z4LH46UGM4T6RUCXWAOYUYR/graph.json","events_json":"https://pith.science/api/pith-number/KJ2Z4LH46UGM4T6RUCXWAOYUYR/events.json","paper":"https://pith.science/paper/KJ2Z4LH4"},"agent_actions":{"view_html":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR","download_json":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR.json","view_paper":"https://pith.science/paper/KJ2Z4LH4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1012.2383&json=true","fetch_graph":"https://pith.science/api/pith-number/KJ2Z4LH46UGM4T6RUCXWAOYUYR/graph.json","fetch_events":"https://pith.science/api/pith-number/KJ2Z4LH46UGM4T6RUCXWAOYUYR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR/action/storage_attestation","attest_author":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR/action/author_attestation","sign_citation":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR/action/citation_signature","submit_replication":"https://pith.science/pith/KJ2Z4LH46UGM4T6RUCXWAOYUYR/action/replication_record"}},"created_at":"2026-05-18T02:04:30.295215+00:00","updated_at":"2026-05-18T02:04:30.295215+00:00"}