{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:6WVMJXDZA7VC3FPH2WROMVSYDV","short_pith_number":"pith:6WVMJXDZ","schema_version":"1.0","canonical_sha256":"f5aac4dc7907ea2d95e7d5a2e656581d661ea5d72732809a674bced57c8f43ae","source":{"kind":"arxiv","id":"2212.07433","version":2},"attestation_state":"computed","paper":{"title":"Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron M. Meisner, Adam D. Myers, A. de la Macorra, A. Dey, A. Font-Ribera, Anthony Kremin, A. P. Cooper, Benjamin Weiner, ChangHoon Hahn, D. Brooks, D. Schlegel, Elise Darragh-Ford, Erik J. Tollerud, Ethan O. Nadler, F. Prada, Gregory Tarl\\'e, H. Zou, J. Aguilar, Jaime E. Forero-Romero, J. E. G. Peek, John F. Wu, John Moustakas, Jundan Nie, K. Fanning, K. Honscheid, Marla Geha, Marta Nowotka, Michael E. Levi, M. Landriau, M. Schubnell, M. Vargas-Maga\\~na, Nitya Kallivayalil, N. Palanque-Delabrouille, P. Martini, Risa H. Wechsler, R. Miquel, S. Ahlen, S. Gontcho A Gontcho, T. Kisner, W. J. Percival, Yao-Yuan Mao, Zhimin Zhou","submitted_at":"2022-12-14T19:00:00Z","abstract_excerpt":"We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method. Our selection consists of a set of color and surface brightness cuts, combined with modern machine learning methods, to target low-redshift dwarf galaxies ($z$ < 0.03) between $19 < r < 21$ with high completeness. We employ a convolutional neural network (CNN) to select high-priority targets. The LOW-Z survey has already obtained over 22,000 redshifts of dwarf galaxies (M$_* < 10^9$ M$_\\odot$),"},"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":"2212.07433","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-12-14T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"06a52900556a79b85c5ee75dcf22924c5bae0e6b7523960c60f4ea48b7a1698e","abstract_canon_sha256":"70b0595283f56d18eb50de812ff653d695b9da14f3f42c5b7a50a01ec68fbe4f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:19:38.248548Z","signature_b64":"r06q+QbQa76HZHgp4h6O0xkpByXmW2mlD32pMwARL2roB15Stby8Mvqvzqs5WeEjCLdh46jkDTwavvDsUE5YCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5aac4dc7907ea2d95e7d5a2e656581d661ea5d72732809a674bced57c8f43ae","last_reissued_at":"2026-07-05T06:19:38.248049Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:19:38.248049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron M. Meisner, Adam D. Myers, A. de la Macorra, A. Dey, A. Font-Ribera, Anthony Kremin, A. P. Cooper, Benjamin Weiner, ChangHoon Hahn, D. Brooks, D. Schlegel, Elise Darragh-Ford, Erik J. Tollerud, Ethan O. Nadler, F. Prada, Gregory Tarl\\'e, H. Zou, J. Aguilar, Jaime E. Forero-Romero, J. E. G. Peek, John F. Wu, John Moustakas, Jundan Nie, K. Fanning, K. Honscheid, Marla Geha, Marta Nowotka, Michael E. Levi, M. Landriau, M. Schubnell, M. Vargas-Maga\\~na, Nitya Kallivayalil, N. Palanque-Delabrouille, P. Martini, Risa H. Wechsler, R. Miquel, S. Ahlen, S. Gontcho A Gontcho, T. Kisner, W. J. Percival, Yao-Yuan Mao, Zhimin Zhou","submitted_at":"2022-12-14T19:00:00Z","abstract_excerpt":"We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method. Our selection consists of a set of color and surface brightness cuts, combined with modern machine learning methods, to target low-redshift dwarf galaxies ($z$ < 0.03) between $19 < r < 21$ with high completeness. We employ a convolutional neural network (CNN) to select high-priority targets. The LOW-Z survey has already obtained over 22,000 redshifts of dwarf galaxies (M$_* < 10^9$ M$_\\odot$),"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.07433","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.07433/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2212.07433","created_at":"2026-07-05T06:19:38.248107+00:00"},{"alias_kind":"arxiv_version","alias_value":"2212.07433v2","created_at":"2026-07-05T06:19:38.248107+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.07433","created_at":"2026-07-05T06:19:38.248107+00:00"},{"alias_kind":"pith_short_12","alias_value":"6WVMJXDZA7VC","created_at":"2026-07-05T06:19:38.248107+00:00"},{"alias_kind":"pith_short_16","alias_value":"6WVMJXDZA7VC3FPH","created_at":"2026-07-05T06:19:38.248107+00:00"},{"alias_kind":"pith_short_8","alias_value":"6WVMJXDZ","created_at":"2026-07-05T06:19:38.248107+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2411.07970","citing_title":"MUltiplexed Survey Telescope (MUST) Science White Paper I: Overview of Large-Scale Structure Cosmology in the Era of Stage-V Spectroscopic Surveys","ref_index":213,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV","json":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV.json","graph_json":"https://pith.science/api/pith-number/6WVMJXDZA7VC3FPH2WROMVSYDV/graph.json","events_json":"https://pith.science/api/pith-number/6WVMJXDZA7VC3FPH2WROMVSYDV/events.json","paper":"https://pith.science/paper/6WVMJXDZ"},"agent_actions":{"view_html":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV","download_json":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV.json","view_paper":"https://pith.science/paper/6WVMJXDZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2212.07433&json=true","fetch_graph":"https://pith.science/api/pith-number/6WVMJXDZA7VC3FPH2WROMVSYDV/graph.json","fetch_events":"https://pith.science/api/pith-number/6WVMJXDZA7VC3FPH2WROMVSYDV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV/action/storage_attestation","attest_author":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV/action/author_attestation","sign_citation":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV/action/citation_signature","submit_replication":"https://pith.science/pith/6WVMJXDZA7VC3FPH2WROMVSYDV/action/replication_record"}},"created_at":"2026-07-05T06:19:38.248107+00:00","updated_at":"2026-07-05T06:19:38.248107+00:00"}