{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:KY3PS7LQ377W6YS6ZEVDF4VTFZ","short_pith_number":"pith:KY3PS7LQ","schema_version":"1.0","canonical_sha256":"5636f97d70dfff6f625ec92a32f2b32e65253707dda18fdfa6d41205f90de0ba","source":{"kind":"arxiv","id":"1905.05409","version":1},"attestation_state":"computed","paper":{"title":"Probing the assembly of dwarf galaxies through cosmic time with damped Lyman-$\\alpha$ absorption spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Gurtina Besla, Myoungwon Jeon, Volker Bromm","submitted_at":"2019-05-14T06:36:30Z","abstract_excerpt":"We investigate the absorption features associated with a gas-rich dwarf galaxy using cosmological hydrodynamics simulations. Our goal is to explore whether the progenitors of the lowest mass dwarf galaxies known to harbor neutral hydrogen today (M_star~10^6 solar mass, M_halo=4x10^9 solar mass) could possibly be detected as Damped Lyman-alpha Absorbers (DLAs) over cosmic time. We trace the evolution of a single dwarf galaxy, pre-selected to contain DLAs, from the era of the first metal-free, so-called Population~III (Pop~III), stars, down to z=0, thus allowing us to study the metal enrichment "},"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":"1905.05409","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-05-14T06:36:30Z","cross_cats_sorted":[],"title_canon_sha256":"611bac7e19cf778697eeebc21bf560365cc772b5856271e867e4083ff432f129","abstract_canon_sha256":"a9afb05300a4df4a65c4534227ca82c3b4f1c371ff6b6989427eb66a53677a4b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:19.063664Z","signature_b64":"8Ipvu2sCvXizxXyQxwivpfjrAwa7K7KrLWELXTkagwcYlP0m9XBWqmQvfoIbTQjnF/x7247HEpJ/7TUI6X1vBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5636f97d70dfff6f625ec92a32f2b32e65253707dda18fdfa6d41205f90de0ba","last_reissued_at":"2026-05-17T23:42:19.063262Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:19.063262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing the assembly of dwarf galaxies through cosmic time with damped Lyman-$\\alpha$ absorption spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Gurtina Besla, Myoungwon Jeon, Volker Bromm","submitted_at":"2019-05-14T06:36:30Z","abstract_excerpt":"We investigate the absorption features associated with a gas-rich dwarf galaxy using cosmological hydrodynamics simulations. Our goal is to explore whether the progenitors of the lowest mass dwarf galaxies known to harbor neutral hydrogen today (M_star~10^6 solar mass, M_halo=4x10^9 solar mass) could possibly be detected as Damped Lyman-alpha Absorbers (DLAs) over cosmic time. We trace the evolution of a single dwarf galaxy, pre-selected to contain DLAs, from the era of the first metal-free, so-called Population~III (Pop~III), stars, down to z=0, thus allowing us to study the metal enrichment "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.05409","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":"1905.05409","created_at":"2026-05-17T23:42:19.063336+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.05409v1","created_at":"2026-05-17T23:42:19.063336+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.05409","created_at":"2026-05-17T23:42:19.063336+00:00"},{"alias_kind":"pith_short_12","alias_value":"KY3PS7LQ377W","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_16","alias_value":"KY3PS7LQ377W6YS6","created_at":"2026-05-18T12:33:21.387695+00:00"},{"alias_kind":"pith_short_8","alias_value":"KY3PS7LQ","created_at":"2026-05-18T12:33:21.387695+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/KY3PS7LQ377W6YS6ZEVDF4VTFZ","json":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ.json","graph_json":"https://pith.science/api/pith-number/KY3PS7LQ377W6YS6ZEVDF4VTFZ/graph.json","events_json":"https://pith.science/api/pith-number/KY3PS7LQ377W6YS6ZEVDF4VTFZ/events.json","paper":"https://pith.science/paper/KY3PS7LQ"},"agent_actions":{"view_html":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ","download_json":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ.json","view_paper":"https://pith.science/paper/KY3PS7LQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.05409&json=true","fetch_graph":"https://pith.science/api/pith-number/KY3PS7LQ377W6YS6ZEVDF4VTFZ/graph.json","fetch_events":"https://pith.science/api/pith-number/KY3PS7LQ377W6YS6ZEVDF4VTFZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ/action/storage_attestation","attest_author":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ/action/author_attestation","sign_citation":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ/action/citation_signature","submit_replication":"https://pith.science/pith/KY3PS7LQ377W6YS6ZEVDF4VTFZ/action/replication_record"}},"created_at":"2026-05-17T23:42:19.063336+00:00","updated_at":"2026-05-17T23:42:19.063336+00:00"}