{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:UFVQUMRZP6JTQQI3BPKTRDXOKB","short_pith_number":"pith:UFVQUMRZ","schema_version":"1.0","canonical_sha256":"a16b0a32397f9338411b0bd5388eee506607d41b64363def9f4629338d50b818","source":{"kind":"arxiv","id":"1801.03403","version":1},"attestation_state":"computed","paper":{"title":"Photometric metallicity map of the Small Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew A.Cole, Annapurni Subramaniam, Samyaday Choudhury, Young-Jong Sohn","submitted_at":"2018-01-09T04:58:04Z","abstract_excerpt":"We have created an estimated metallicity map of the Small Magellanic Cloud (SMC) using the Magellanic Cloud Photometric Survey (MCPS) and Optical Gravitational Lensing Experiment (OGLE III) photometric data. This is a first of its kind map of metallicity up to a radius of $\\sim$ 2.5$^{\\circ}$. We identify the RGB in the V, (V$-$I) colour magnitude diagrams of small subregions of varying sizes in both data sets. We use the slope of the RGB as an indicator of the average metallicity of a subregion, and calibrate the RGB slope to metallicity using available spectroscopic data for selected subregi"},"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":"1801.03403","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-01-09T04:58:04Z","cross_cats_sorted":[],"title_canon_sha256":"076a4726fe93be92482c1940dc7a4db1e950e8701ffac6526f2b6864036056f5","abstract_canon_sha256":"52284e6371a98c6f64741f11bb00bb190620aba5c823d8a466b8a5c42f697bf5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:15.224554Z","signature_b64":"DBkym2rxb8uctDZsuUrzYkrw3YocGLPvP7HZFpll52ofchBNBu6LVOvIIxh6FLqwDOocksNyR+7McCG9ho8RAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a16b0a32397f9338411b0bd5388eee506607d41b64363def9f4629338d50b818","last_reissued_at":"2026-05-18T00:25:15.223901Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:15.223901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Photometric metallicity map of the Small Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrew A.Cole, Annapurni Subramaniam, Samyaday Choudhury, Young-Jong Sohn","submitted_at":"2018-01-09T04:58:04Z","abstract_excerpt":"We have created an estimated metallicity map of the Small Magellanic Cloud (SMC) using the Magellanic Cloud Photometric Survey (MCPS) and Optical Gravitational Lensing Experiment (OGLE III) photometric data. This is a first of its kind map of metallicity up to a radius of $\\sim$ 2.5$^{\\circ}$. We identify the RGB in the V, (V$-$I) colour magnitude diagrams of small subregions of varying sizes in both data sets. We use the slope of the RGB as an indicator of the average metallicity of a subregion, and calibrate the RGB slope to metallicity using available spectroscopic data for selected subregi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03403","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":"1801.03403","created_at":"2026-05-18T00:25:15.224023+00:00"},{"alias_kind":"arxiv_version","alias_value":"1801.03403v1","created_at":"2026-05-18T00:25:15.224023+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03403","created_at":"2026-05-18T00:25:15.224023+00:00"},{"alias_kind":"pith_short_12","alias_value":"UFVQUMRZP6JT","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_16","alias_value":"UFVQUMRZP6JTQQI3","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_8","alias_value":"UFVQUMRZ","created_at":"2026-05-18T12:32:56.356000+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.21294","citing_title":"Optical Super-orbital Modulation of SMC X-1: Disk Precession and a Revised Pulsar Mass","ref_index":53,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB","json":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB.json","graph_json":"https://pith.science/api/pith-number/UFVQUMRZP6JTQQI3BPKTRDXOKB/graph.json","events_json":"https://pith.science/api/pith-number/UFVQUMRZP6JTQQI3BPKTRDXOKB/events.json","paper":"https://pith.science/paper/UFVQUMRZ"},"agent_actions":{"view_html":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB","download_json":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB.json","view_paper":"https://pith.science/paper/UFVQUMRZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1801.03403&json=true","fetch_graph":"https://pith.science/api/pith-number/UFVQUMRZP6JTQQI3BPKTRDXOKB/graph.json","fetch_events":"https://pith.science/api/pith-number/UFVQUMRZP6JTQQI3BPKTRDXOKB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB/action/storage_attestation","attest_author":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB/action/author_attestation","sign_citation":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB/action/citation_signature","submit_replication":"https://pith.science/pith/UFVQUMRZP6JTQQI3BPKTRDXOKB/action/replication_record"}},"created_at":"2026-05-18T00:25:15.224023+00:00","updated_at":"2026-05-18T00:25:15.224023+00:00"}