{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:LSQD3JZBQYDE6VGLTKLVT7ZU3F","short_pith_number":"pith:LSQD3JZB","schema_version":"1.0","canonical_sha256":"5ca03da72186064f54cb9a9759ff34d974796c3ae16012aee6ddecbb0eaa1a5c","source":{"kind":"arxiv","id":"1708.01260","version":1},"attestation_state":"computed","paper":{"title":"The Little Cub: Discovery of an Extremely Metal-Poor Star-Forming Galaxy in the Local Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"J. Xavier Prochaska, Michael Bolte, Ryan J. Cooke, Tiffany Hsyu","submitted_at":"2017-08-03T18:00:08Z","abstract_excerpt":"We report the discovery of the Little Cub, an extremely metal-poor star-forming galaxy in the local Universe, found in the constellation Ursa Major (a.k.a. the Great Bear). We first identified the Little Cub as a candidate metal-poor galaxy based on its Sloan Digital Sky Survey photometric colors, combined with spectroscopy using the Kast spectrograph on the Shane 3-m telescope at Lick Observatory. In this letter, we present high-quality spectroscopic data taken with the Low Resolution Imaging Spectrometer at Keck Observatory, which confirm the extremely metal-poor nature of this galaxy. Based"},"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":"1708.01260","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-08-03T18:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"ae8a7f6f519164a4d4801d4cd5eea5653756d1a0fede11fe2757ec8c8716191f","abstract_canon_sha256":"213556721c13e720c5517463e20bf0379e9e449dc4142b94dc96052d1be31ae3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:27.922273Z","signature_b64":"KLrKAhpT8mL0PgjFs3pLF9rnBTgt15hiABWyYaoUjBWpRFzJJu+vvQ5nUFNFiDORfM5oF3auhhIbXxj512QqBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ca03da72186064f54cb9a9759ff34d974796c3ae16012aee6ddecbb0eaa1a5c","last_reissued_at":"2026-05-18T00:36:27.921747Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:27.921747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Little Cub: Discovery of an Extremely Metal-Poor Star-Forming Galaxy in the Local Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"J. Xavier Prochaska, Michael Bolte, Ryan J. Cooke, Tiffany Hsyu","submitted_at":"2017-08-03T18:00:08Z","abstract_excerpt":"We report the discovery of the Little Cub, an extremely metal-poor star-forming galaxy in the local Universe, found in the constellation Ursa Major (a.k.a. the Great Bear). We first identified the Little Cub as a candidate metal-poor galaxy based on its Sloan Digital Sky Survey photometric colors, combined with spectroscopy using the Kast spectrograph on the Shane 3-m telescope at Lick Observatory. In this letter, we present high-quality spectroscopic data taken with the Low Resolution Imaging Spectrometer at Keck Observatory, which confirm the extremely metal-poor nature of this galaxy. Based"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01260","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":"1708.01260","created_at":"2026-05-18T00:36:27.921828+00:00"},{"alias_kind":"arxiv_version","alias_value":"1708.01260v1","created_at":"2026-05-18T00:36:27.921828+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01260","created_at":"2026-05-18T00:36:27.921828+00:00"},{"alias_kind":"pith_short_12","alias_value":"LSQD3JZBQYDE","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_16","alias_value":"LSQD3JZBQYDE6VGL","created_at":"2026-05-18T12:31:28.150371+00:00"},{"alias_kind":"pith_short_8","alias_value":"LSQD3JZB","created_at":"2026-05-18T12:31:28.150371+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/LSQD3JZBQYDE6VGLTKLVT7ZU3F","json":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F.json","graph_json":"https://pith.science/api/pith-number/LSQD3JZBQYDE6VGLTKLVT7ZU3F/graph.json","events_json":"https://pith.science/api/pith-number/LSQD3JZBQYDE6VGLTKLVT7ZU3F/events.json","paper":"https://pith.science/paper/LSQD3JZB"},"agent_actions":{"view_html":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F","download_json":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F.json","view_paper":"https://pith.science/paper/LSQD3JZB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1708.01260&json=true","fetch_graph":"https://pith.science/api/pith-number/LSQD3JZBQYDE6VGLTKLVT7ZU3F/graph.json","fetch_events":"https://pith.science/api/pith-number/LSQD3JZBQYDE6VGLTKLVT7ZU3F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F/action/storage_attestation","attest_author":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F/action/author_attestation","sign_citation":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F/action/citation_signature","submit_replication":"https://pith.science/pith/LSQD3JZBQYDE6VGLTKLVT7ZU3F/action/replication_record"}},"created_at":"2026-05-18T00:36:27.921828+00:00","updated_at":"2026-05-18T00:36:27.921828+00:00"}