{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:O3OL32O6DMYO2IGX6JI6X3JSDC","short_pith_number":"pith:O3OL32O6","schema_version":"1.0","canonical_sha256":"76dcbde9de1b30ed20d7f251ebed321898a014c3d3d5f99ef8c3d165dd277898","source":{"kind":"arxiv","id":"0908.0343","version":3},"attestation_state":"computed","paper":{"title":"Deep Keck u-band imaging of the Hubble Ultra Deep Field: A catalog of z~3 Lyman Break Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Arthur M. Wolfe, Gregory D. Wirth, Hsiao-Wen Chen, Jeff Cooke, Marc Rafelski, Taft E. Armandroff","submitted_at":"2009-08-03T20:49:15Z","abstract_excerpt":"We present a sample of 407 z~3 Lyman break galaxies (LBGs) to a limiting isophotal u-band magnitude of 27.6 mag in the Hubble Ultra Deep Field (UDF). The LBGs are selected using a combination of photometric redshifts and the u-band drop-out technique enabled by the introduction of an extremely deep u-band image obtained with the Keck I telescope and the blue channel of the LRIS spectrometer. The Keck u-band image, totaling 9 hours of integration time, has a one sigma depth of 30.7 mag arcsec^-2, making it one of the most sensitive u-band images ever obtained. The u-band image also substantiall"},"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":"0908.0343","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-08-03T20:49:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"cdb4c193c7a3f684ce22c8aa02f560d1bc62e7858230a77df56d39aa725a5b0f","abstract_canon_sha256":"c4a16366eb3330b90adb1550d039ecaf632aa6fa274f009be6f01531754cb988"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:44.994300Z","signature_b64":"FyiCFRkm9OT6cu4ivCqkb/wi4ZMYtVyzWbGzSxAqGzYVujSkK4R8LZV+tfBzm4JMDLYBMsczRBWn7yj1EKW2Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76dcbde9de1b30ed20d7f251ebed321898a014c3d3d5f99ef8c3d165dd277898","last_reissued_at":"2026-05-18T02:12:44.993687Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:44.993687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Deep Keck u-band imaging of the Hubble Ultra Deep Field: A catalog of z~3 Lyman Break Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Arthur M. Wolfe, Gregory D. Wirth, Hsiao-Wen Chen, Jeff Cooke, Marc Rafelski, Taft E. Armandroff","submitted_at":"2009-08-03T20:49:15Z","abstract_excerpt":"We present a sample of 407 z~3 Lyman break galaxies (LBGs) to a limiting isophotal u-band magnitude of 27.6 mag in the Hubble Ultra Deep Field (UDF). The LBGs are selected using a combination of photometric redshifts and the u-band drop-out technique enabled by the introduction of an extremely deep u-band image obtained with the Keck I telescope and the blue channel of the LRIS spectrometer. The Keck u-band image, totaling 9 hours of integration time, has a one sigma depth of 30.7 mag arcsec^-2, making it one of the most sensitive u-band images ever obtained. The u-band image also substantiall"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.0343","kind":"arxiv","version":3},"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":"0908.0343","created_at":"2026-05-18T02:12:44.993769+00:00"},{"alias_kind":"arxiv_version","alias_value":"0908.0343v3","created_at":"2026-05-18T02:12:44.993769+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.0343","created_at":"2026-05-18T02:12:44.993769+00:00"},{"alias_kind":"pith_short_12","alias_value":"O3OL32O6DMYO","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"O3OL32O6DMYO2IGX","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"O3OL32O6","created_at":"2026-05-18T12:26:01.383474+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/O3OL32O6DMYO2IGX6JI6X3JSDC","json":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC.json","graph_json":"https://pith.science/api/pith-number/O3OL32O6DMYO2IGX6JI6X3JSDC/graph.json","events_json":"https://pith.science/api/pith-number/O3OL32O6DMYO2IGX6JI6X3JSDC/events.json","paper":"https://pith.science/paper/O3OL32O6"},"agent_actions":{"view_html":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC","download_json":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC.json","view_paper":"https://pith.science/paper/O3OL32O6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0908.0343&json=true","fetch_graph":"https://pith.science/api/pith-number/O3OL32O6DMYO2IGX6JI6X3JSDC/graph.json","fetch_events":"https://pith.science/api/pith-number/O3OL32O6DMYO2IGX6JI6X3JSDC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC/action/storage_attestation","attest_author":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC/action/author_attestation","sign_citation":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC/action/citation_signature","submit_replication":"https://pith.science/pith/O3OL32O6DMYO2IGX6JI6X3JSDC/action/replication_record"}},"created_at":"2026-05-18T02:12:44.993769+00:00","updated_at":"2026-05-18T02:12:44.993769+00:00"}