{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:UILW3642UNXMBEHLF72N5AG6SM","short_pith_number":"pith:UILW3642","schema_version":"1.0","canonical_sha256":"a2176dfb9aa36ec090eb2ff4de80de931e4418eb405a8829b795f55458a61f56","source":{"kind":"arxiv","id":"astro-ph/0205480","version":1},"attestation_state":"computed","paper":{"title":"Discovery of the host galaxy of HDF850.1, the brightest sub-mm source in the Hubble Deep Field","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Lawrence, A.M.S. Richards, D.H. Hughes, G.P. Smith, I. Aretxaga, I. Smail, J.A. Peacock, J.S. Dunlop (University of Edinburgh), M. Dickinson, M. Kajisawa, O. Almaini, R.G. Mann, R.J. Ivison, R.J. Mclure, S. Serjeant, T.W.B. Muxlow, T. Yamada","submitted_at":"2002-05-28T09:30:50Z","abstract_excerpt":"Despite extensive observational efforts, the brightest sub--mm source in the Hubble Deep Field, HDF850.1, has failed to yield a convincing optical/infrared identification almost 4 years after its discovery. This failure is all the more notable given the availability of supporting multi-frequency data of unparalleled depth, and sub-arcsec positional accuracy for the sub-mm/mm source. Consequently, HDF850.1 has become a test case of the possibility that the most violently star-forming objects in the universe are too red and/or distant to be seen in the deepest optical images. Here we report the "},"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/0205480","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-05-28T09:30:50Z","cross_cats_sorted":[],"title_canon_sha256":"0cda86fdcca7772535e87c0a9401c2bd257271856e584953de9da5a5e02ce6ca","abstract_canon_sha256":"f8ea8c8c919b4ab34f3e81e5deb6fa584b9dadde800156499b694f680bd1160a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:42.738160Z","signature_b64":"5clTZuF5uONVAWGBLJioHCskAZnqC9spi2zhW7ykPDCbMeZqtMOrf2d9t7dh3zLC2T9O071ggVNvKU5MBRX7Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2176dfb9aa36ec090eb2ff4de80de931e4418eb405a8829b795f55458a61f56","last_reissued_at":"2026-05-18T01:40:42.737525Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:42.737525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of the host galaxy of HDF850.1, the brightest sub-mm source in the Hubble Deep Field","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Lawrence, A.M.S. Richards, D.H. Hughes, G.P. Smith, I. Aretxaga, I. Smail, J.A. Peacock, J.S. Dunlop (University of Edinburgh), M. Dickinson, M. Kajisawa, O. Almaini, R.G. Mann, R.J. Ivison, R.J. Mclure, S. Serjeant, T.W.B. Muxlow, T. Yamada","submitted_at":"2002-05-28T09:30:50Z","abstract_excerpt":"Despite extensive observational efforts, the brightest sub--mm source in the Hubble Deep Field, HDF850.1, has failed to yield a convincing optical/infrared identification almost 4 years after its discovery. This failure is all the more notable given the availability of supporting multi-frequency data of unparalleled depth, and sub-arcsec positional accuracy for the sub-mm/mm source. Consequently, HDF850.1 has become a test case of the possibility that the most violently star-forming objects in the universe are too red and/or distant to be seen in the deepest optical images. Here we report the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0205480","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/0205480","created_at":"2026-05-18T01:40:42.737645+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0205480v1","created_at":"2026-05-18T01:40:42.737645+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0205480","created_at":"2026-05-18T01:40:42.737645+00:00"},{"alias_kind":"pith_short_12","alias_value":"UILW3642UNXM","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_16","alias_value":"UILW3642UNXMBEHL","created_at":"2026-05-18T12:25:51.375804+00:00"},{"alias_kind":"pith_short_8","alias_value":"UILW3642","created_at":"2026-05-18T12:25:51.375804+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/UILW3642UNXMBEHLF72N5AG6SM","json":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM.json","graph_json":"https://pith.science/api/pith-number/UILW3642UNXMBEHLF72N5AG6SM/graph.json","events_json":"https://pith.science/api/pith-number/UILW3642UNXMBEHLF72N5AG6SM/events.json","paper":"https://pith.science/paper/UILW3642"},"agent_actions":{"view_html":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM","download_json":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM.json","view_paper":"https://pith.science/paper/UILW3642","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0205480&json=true","fetch_graph":"https://pith.science/api/pith-number/UILW3642UNXMBEHLF72N5AG6SM/graph.json","fetch_events":"https://pith.science/api/pith-number/UILW3642UNXMBEHLF72N5AG6SM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM/action/storage_attestation","attest_author":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM/action/author_attestation","sign_citation":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM/action/citation_signature","submit_replication":"https://pith.science/pith/UILW3642UNXMBEHLF72N5AG6SM/action/replication_record"}},"created_at":"2026-05-18T01:40:42.737645+00:00","updated_at":"2026-05-18T01:40:42.737645+00:00"}