{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:OC7SFPVKBGVVXKWMERLCQTB6SE","short_pith_number":"pith:OC7SFPVK","schema_version":"1.0","canonical_sha256":"70bf22beaa09ab5baacc2456284c3e9121edeff76dac168c43856d67f4611925","source":{"kind":"arxiv","id":"0912.4263","version":6},"attestation_state":"computed","paper":{"title":"A candidate redshift z ~ 10 galaxy and rapid changes in that population at an age of 500 Myr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"D. Magee (UC Santa Cruz), G.D. Illingworth (UC Santa Cruz), I. Labbe (Carnegie Observatories), L. Bradley (STScI), Leiden), M. Carollo (ETH Zurich), M. Franx (Leiden), M. Stiavelli (STScI), M. Trenti (U Colorado), P.A. Oesch (ETH Zurich), P.G. van Dokkum (Yale), R.J. Bouwens (UC Santa Cruz, V. Gonzalez (UC Santa Cruz)","submitted_at":"2009-12-22T19:33:33Z","abstract_excerpt":"Searches for very-high-redshift galaxies over the past decade have yielded a large sample of more than 6,000 galaxies existing just 900-2,000 million years (Myr) after the Big Bang (redshifts 6 > z > 3; ref. 1). The Hubble Ultra Deep Field (HUDF09) data have yielded the first reliable detections of z ~ 8 galaxies that, together with reports of a gamma-ray burst at z ~ 8.2 (refs 10, 11), constitute the earliest objects reliably reported to date. Observations of z ~ 7-8 galaxies suggest substantial star formation at z > 9-10. Here we use the full two-year HUDF09 data to conduct an ultra-deep sea"},"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":"0912.4263","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-22T19:33:33Z","cross_cats_sorted":[],"title_canon_sha256":"70afe2ba48610370e53b151858fcd16e595e05d1211599ef3efde04f06bdacf1","abstract_canon_sha256":"31d985330916df0349d9ac755d68a560624fab6ac6a55f2e80802dd26392ffd0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:45.536699Z","signature_b64":"s9YlyWTInRguStg9JRCnCJPIr4KozQEunKmjCvb2QR/Wy4cdm5u2f2jUC7yhglzD7Da5cRVwFRYipvKA6PSEAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70bf22beaa09ab5baacc2456284c3e9121edeff76dac168c43856d67f4611925","last_reissued_at":"2026-05-18T02:24:45.536159Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:45.536159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A candidate redshift z ~ 10 galaxy and rapid changes in that population at an age of 500 Myr","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"D. Magee (UC Santa Cruz), G.D. Illingworth (UC Santa Cruz), I. Labbe (Carnegie Observatories), L. Bradley (STScI), Leiden), M. Carollo (ETH Zurich), M. Franx (Leiden), M. Stiavelli (STScI), M. Trenti (U Colorado), P.A. Oesch (ETH Zurich), P.G. van Dokkum (Yale), R.J. Bouwens (UC Santa Cruz, V. Gonzalez (UC Santa Cruz)","submitted_at":"2009-12-22T19:33:33Z","abstract_excerpt":"Searches for very-high-redshift galaxies over the past decade have yielded a large sample of more than 6,000 galaxies existing just 900-2,000 million years (Myr) after the Big Bang (redshifts 6 > z > 3; ref. 1). The Hubble Ultra Deep Field (HUDF09) data have yielded the first reliable detections of z ~ 8 galaxies that, together with reports of a gamma-ray burst at z ~ 8.2 (refs 10, 11), constitute the earliest objects reliably reported to date. Observations of z ~ 7-8 galaxies suggest substantial star formation at z > 9-10. Here we use the full two-year HUDF09 data to conduct an ultra-deep sea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.4263","kind":"arxiv","version":6},"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":"0912.4263","created_at":"2026-05-18T02:24:45.536244+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.4263v6","created_at":"2026-05-18T02:24:45.536244+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.4263","created_at":"2026-05-18T02:24:45.536244+00:00"},{"alias_kind":"pith_short_12","alias_value":"OC7SFPVKBGVV","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"OC7SFPVKBGVVXKWM","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"OC7SFPVK","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/OC7SFPVKBGVVXKWMERLCQTB6SE","json":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE.json","graph_json":"https://pith.science/api/pith-number/OC7SFPVKBGVVXKWMERLCQTB6SE/graph.json","events_json":"https://pith.science/api/pith-number/OC7SFPVKBGVVXKWMERLCQTB6SE/events.json","paper":"https://pith.science/paper/OC7SFPVK"},"agent_actions":{"view_html":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE","download_json":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE.json","view_paper":"https://pith.science/paper/OC7SFPVK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.4263&json=true","fetch_graph":"https://pith.science/api/pith-number/OC7SFPVKBGVVXKWMERLCQTB6SE/graph.json","fetch_events":"https://pith.science/api/pith-number/OC7SFPVKBGVVXKWMERLCQTB6SE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE/action/storage_attestation","attest_author":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE/action/author_attestation","sign_citation":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE/action/citation_signature","submit_replication":"https://pith.science/pith/OC7SFPVKBGVVXKWMERLCQTB6SE/action/replication_record"}},"created_at":"2026-05-18T02:24:45.536244+00:00","updated_at":"2026-05-18T02:24:45.536244+00:00"}