{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:QROKFLOSLOCTRPKVLW3RVNS2KC","short_pith_number":"pith:QROKFLOS","schema_version":"1.0","canonical_sha256":"845ca2add25b8538bd555db71ab65a50a91d5aee250328954feddb316c9d2847","source":{"kind":"arxiv","id":"astro-ph/0011082","version":1},"attestation_state":"computed","paper":{"title":"Extremely red galaxy counterparts to 7C radio sources","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Chris J. Willott, Katherine M. Blundell, Steve Rawlings","submitted_at":"2000-11-03T13:58:47Z","abstract_excerpt":"We present RIJHK imaging of seven radio galaxies from the 7C Redshift Survey (7CRS) which lack strong emission lines and we use these data to investigate their spectral energy distributions (SEDs) with models which constrain their redshifts. Six of these seven galaxies have extremely red colours (R-K>5.5) and we find that almost all of them lie in the redshift range 1<z<2. We also present near-infrared spectroscopy of these galaxies which demonstrate that their SEDs are not dominated by emission lines, although tentative lines, consistent with H-alpha at z=1.45 and z=1.61, are found in two obj"},"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/0011082","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-03T13:58:47Z","cross_cats_sorted":[],"title_canon_sha256":"4c0017dc8395b3e11c46eaa2a6986a3014bc53caa099ba138cbc2ea756eecad5","abstract_canon_sha256":"30d6fa7631f5c331884f14e83c1c78ea5784032fd07236906cb4563bc98ea5a8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:45.325998Z","signature_b64":"JzYko1XZ5eX1keJ6bze9octoH6EKcUV/kyoOEzK+LEn0YAHw1skG7OaIgNfYL4nzFOKfZk4//1zM2yCyn+SDCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"845ca2add25b8538bd555db71ab65a50a91d5aee250328954feddb316c9d2847","last_reissued_at":"2026-05-18T01:40:45.325302Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:45.325302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Extremely red galaxy counterparts to 7C radio sources","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Chris J. Willott, Katherine M. Blundell, Steve Rawlings","submitted_at":"2000-11-03T13:58:47Z","abstract_excerpt":"We present RIJHK imaging of seven radio galaxies from the 7C Redshift Survey (7CRS) which lack strong emission lines and we use these data to investigate their spectral energy distributions (SEDs) with models which constrain their redshifts. Six of these seven galaxies have extremely red colours (R-K>5.5) and we find that almost all of them lie in the redshift range 1<z<2. We also present near-infrared spectroscopy of these galaxies which demonstrate that their SEDs are not dominated by emission lines, although tentative lines, consistent with H-alpha at z=1.45 and z=1.61, are found in two obj"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0011082","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/0011082","created_at":"2026-05-18T01:40:45.325411+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0011082v1","created_at":"2026-05-18T01:40:45.325411+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0011082","created_at":"2026-05-18T01:40:45.325411+00:00"},{"alias_kind":"pith_short_12","alias_value":"QROKFLOSLOCT","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_16","alias_value":"QROKFLOSLOCTRPKV","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_8","alias_value":"QROKFLOS","created_at":"2026-05-18T12:25:50.254431+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/QROKFLOSLOCTRPKVLW3RVNS2KC","json":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC.json","graph_json":"https://pith.science/api/pith-number/QROKFLOSLOCTRPKVLW3RVNS2KC/graph.json","events_json":"https://pith.science/api/pith-number/QROKFLOSLOCTRPKVLW3RVNS2KC/events.json","paper":"https://pith.science/paper/QROKFLOS"},"agent_actions":{"view_html":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC","download_json":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC.json","view_paper":"https://pith.science/paper/QROKFLOS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0011082&json=true","fetch_graph":"https://pith.science/api/pith-number/QROKFLOSLOCTRPKVLW3RVNS2KC/graph.json","fetch_events":"https://pith.science/api/pith-number/QROKFLOSLOCTRPKVLW3RVNS2KC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC/action/storage_attestation","attest_author":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC/action/author_attestation","sign_citation":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC/action/citation_signature","submit_replication":"https://pith.science/pith/QROKFLOSLOCTRPKVLW3RVNS2KC/action/replication_record"}},"created_at":"2026-05-18T01:40:45.325411+00:00","updated_at":"2026-05-18T01:40:45.325411+00:00"}