{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:LJZLDLD3GJQ5EYEMC5IIWV2F5V","short_pith_number":"pith:LJZLDLD3","schema_version":"1.0","canonical_sha256":"5a72b1ac7b3261d2608c17508b5745ed648d0e6fef87c39e8f8a283f8c4c6dfd","source":{"kind":"arxiv","id":"astro-ph/0507270","version":1},"attestation_state":"computed","paper":{"title":"A survey of NB921 dropouts in the Subaru Deep Field","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Asuka Yokouchi, Mari I. Takahashi, Masaru Ajiki, Nobunari Kashikawa, Osamu Koizumi, Ryoko Sumiya, Shunji S. Sasaki, Taichi Morioka, Takashi Murayama, Tohru Nagao, Yasuhiro Shioya, Yoshiaki Taniguchi, Yuichiro Hatakeyama","submitted_at":"2005-07-12T05:25:27Z","abstract_excerpt":"In order to search for high-redshift galaxies beyond $z = 6.6$ in the Subaru Deep Field, we have investigated NB921-dropout galaxies where NB921 is the narrowband filter centered at 919.6 nm with FWHM of 13.2 nm for the Suprime-Cam on the Subaru Telescope. There are no secure NB921-dropout candidates brighter than $z^\\prime = 25.5$. Based on this result, we discuss the UV luminosity function of star-forming galaxies at $z > 6.6$."},"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":"astro-ph/0507270","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-12T05:25:27Z","cross_cats_sorted":[],"title_canon_sha256":"2abd5707e50107c63ce8d1be5fa0c6fa21f09282642722796a9973f15dadb536","abstract_canon_sha256":"a5e7ea262acf2348e3f49d07d745d33952fcae6b548fcde96682281cac5b493e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:33.808969Z","signature_b64":"uFGoqqcRVJWfDHbsWBqeNhitusf2I7Zsq1InJ2tUEZH/+NodalMtfBuPvheIco44Guni//JFs22Xfw7iYyLnCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a72b1ac7b3261d2608c17508b5745ed648d0e6fef87c39e8f8a283f8c4c6dfd","last_reissued_at":"2026-05-18T01:40:33.808229Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:33.808229Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A survey of NB921 dropouts in the Subaru Deep Field","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Asuka Yokouchi, Mari I. Takahashi, Masaru Ajiki, Nobunari Kashikawa, Osamu Koizumi, Ryoko Sumiya, Shunji S. Sasaki, Taichi Morioka, Takashi Murayama, Tohru Nagao, Yasuhiro Shioya, Yoshiaki Taniguchi, Yuichiro Hatakeyama","submitted_at":"2005-07-12T05:25:27Z","abstract_excerpt":"In order to search for high-redshift galaxies beyond $z = 6.6$ in the Subaru Deep Field, we have investigated NB921-dropout galaxies where NB921 is the narrowband filter centered at 919.6 nm with FWHM of 13.2 nm for the Suprime-Cam on the Subaru Telescope. There are no secure NB921-dropout candidates brighter than $z^\\prime = 25.5$. Based on this result, we discuss the UV luminosity function of star-forming galaxies at $z > 6.6$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507270","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":"astro-ph/0507270","created_at":"2026-05-18T01:40:33.808374+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507270v1","created_at":"2026-05-18T01:40:33.808374+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507270","created_at":"2026-05-18T01:40:33.808374+00:00"},{"alias_kind":"pith_short_12","alias_value":"LJZLDLD3GJQ5","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_16","alias_value":"LJZLDLD3GJQ5EYEM","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_8","alias_value":"LJZLDLD3","created_at":"2026-05-18T12:25:53.335082+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/LJZLDLD3GJQ5EYEMC5IIWV2F5V","json":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V.json","graph_json":"https://pith.science/api/pith-number/LJZLDLD3GJQ5EYEMC5IIWV2F5V/graph.json","events_json":"https://pith.science/api/pith-number/LJZLDLD3GJQ5EYEMC5IIWV2F5V/events.json","paper":"https://pith.science/paper/LJZLDLD3"},"agent_actions":{"view_html":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V","download_json":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V.json","view_paper":"https://pith.science/paper/LJZLDLD3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0507270&json=true","fetch_graph":"https://pith.science/api/pith-number/LJZLDLD3GJQ5EYEMC5IIWV2F5V/graph.json","fetch_events":"https://pith.science/api/pith-number/LJZLDLD3GJQ5EYEMC5IIWV2F5V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V/action/storage_attestation","attest_author":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V/action/author_attestation","sign_citation":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V/action/citation_signature","submit_replication":"https://pith.science/pith/LJZLDLD3GJQ5EYEMC5IIWV2F5V/action/replication_record"}},"created_at":"2026-05-18T01:40:33.808374+00:00","updated_at":"2026-05-18T01:40:33.808374+00:00"}