{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2001:AGJLSOIBW53KWN5I3EHI2DIHUC","short_pith_number":"pith:AGJLSOIB","schema_version":"1.0","canonical_sha256":"0192b93901b776ab37a8d90e8d0d07a0a74b6a3cc2e4846aaec21f5c0fe0c631","source":{"kind":"arxiv","id":"astro-ph/0104399","version":2},"attestation_state":"computed","paper":{"title":"The new two-image gravitational lens system CLASS B2319+051","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.C.S. Readhead, A.G. de Bruyn, C.D. Fassnacht, D.R. Marlow, D. Rusin, I.W.A. Browne, L.V.E. Koopmans, M. Norbury, N. Jackson, P.N. Wilkinson, R.D. Blandford, S.T. Myers, T.J. Pearson","submitted_at":"2001-04-24T23:11:05Z","abstract_excerpt":"We report the discovery of a new two-image gravitational lens system from the Cosmic Lens All-Sky Survey, CLASS B2319+051. Radio imaging with the Very Large Array (VLA) and Multi-Element Radio-Linked Interferometer Network (MERLIN) shows two compact components with a flux density ratio of 5:1, separated by 1.36 arcsec. Observations with the Very Long Baseline Array (VLBA) resolve each of the radio components into a pair of parity-reversed subcomponents. Hubble Space Telescope (HST) observations with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) show a bright elliptical galaxy"},"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/0104399","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-04-24T23:11:05Z","cross_cats_sorted":[],"title_canon_sha256":"513ee675951560c7e33ab8aac4d01eb30d255af8db91a6fe537f78375c70bbd2","abstract_canon_sha256":"0357e7ab3107d84d4c867468a31f32bcffc82a62979866dbe0881644697aee75"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:23:17.201284Z","signature_b64":"7F3Mn4rt1Exp2c5k0iBlGmPgV1xO7JtbehlBbqi8UdgpDv3cB2ckYK0cEC+r8Zhvl5PiOpCMcjeCm7wldg9UBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0192b93901b776ab37a8d90e8d0d07a0a74b6a3cc2e4846aaec21f5c0fe0c631","last_reissued_at":"2026-07-04T16:23:17.200841Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:23:17.200841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The new two-image gravitational lens system CLASS B2319+051","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.C.S. Readhead, A.G. de Bruyn, C.D. Fassnacht, D.R. Marlow, D. Rusin, I.W.A. Browne, L.V.E. Koopmans, M. Norbury, N. Jackson, P.N. Wilkinson, R.D. Blandford, S.T. Myers, T.J. Pearson","submitted_at":"2001-04-24T23:11:05Z","abstract_excerpt":"We report the discovery of a new two-image gravitational lens system from the Cosmic Lens All-Sky Survey, CLASS B2319+051. Radio imaging with the Very Large Array (VLA) and Multi-Element Radio-Linked Interferometer Network (MERLIN) shows two compact components with a flux density ratio of 5:1, separated by 1.36 arcsec. Observations with the Very Long Baseline Array (VLBA) resolve each of the radio components into a pair of parity-reversed subcomponents. Hubble Space Telescope (HST) observations with the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) show a bright elliptical galaxy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0104399","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0104399/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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/0104399","created_at":"2026-07-04T16:23:17.200910+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0104399v2","created_at":"2026-07-04T16:23:17.200910+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0104399","created_at":"2026-07-04T16:23:17.200910+00:00"},{"alias_kind":"pith_short_12","alias_value":"AGJLSOIBW53K","created_at":"2026-07-04T16:23:17.200910+00:00"},{"alias_kind":"pith_short_16","alias_value":"AGJLSOIBW53KWN5I","created_at":"2026-07-04T16:23:17.200910+00:00"},{"alias_kind":"pith_short_8","alias_value":"AGJLSOIB","created_at":"2026-07-04T16:23:17.200910+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.19217","citing_title":"Taking Inventory of the Most Promising Lensed Radio Sources for Constraining Fundamental Properties of Dark Matter","ref_index":140,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC","json":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC.json","graph_json":"https://pith.science/api/pith-number/AGJLSOIBW53KWN5I3EHI2DIHUC/graph.json","events_json":"https://pith.science/api/pith-number/AGJLSOIBW53KWN5I3EHI2DIHUC/events.json","paper":"https://pith.science/paper/AGJLSOIB"},"agent_actions":{"view_html":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC","download_json":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC.json","view_paper":"https://pith.science/paper/AGJLSOIB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0104399&json=true","fetch_graph":"https://pith.science/api/pith-number/AGJLSOIBW53KWN5I3EHI2DIHUC/graph.json","fetch_events":"https://pith.science/api/pith-number/AGJLSOIBW53KWN5I3EHI2DIHUC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC/action/storage_attestation","attest_author":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC/action/author_attestation","sign_citation":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC/action/citation_signature","submit_replication":"https://pith.science/pith/AGJLSOIBW53KWN5I3EHI2DIHUC/action/replication_record"}},"created_at":"2026-07-04T16:23:17.200910+00:00","updated_at":"2026-07-04T16:23:17.200910+00:00"}