{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:EKHOZ5GUWFRULQWH2P2VZA3JG5","short_pith_number":"pith:EKHOZ5GU","schema_version":"1.0","canonical_sha256":"228eecf4d4b16345c2c7d3f55c836937742c3b1dbd2c76a2a64268a6b5412174","source":{"kind":"arxiv","id":"1401.5073","version":1},"attestation_state":"computed","paper":{"title":"First gravitational lensing mass estimate of a damped Lyman-alpha galaxy at z=2.2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"C. Grillo, J. P. U. Fynbo","submitted_at":"2014-01-20T21:00:20Z","abstract_excerpt":"We present the first lensing total mass estimate of a galaxy, at redshift 2.207, that acts as a gravitational deflector and damped Lyman-alpha absorber on the background QSO SDSS J1135-0010, at redshift 2.888. The remarkably small projected distance, or impact parameter, between the lens and the source has been estimated to be 0.8 +/- 0.1 kpc in a recent work. By exploiting the Sloan Digital Sky Survey database, we establish a likely lensing magnification signal in the photometry of the QSO. This is determined to be 2.2 mag brighter (or 8 times more luminous) than the median QSO at comparable "},"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":"1401.5073","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-20T21:00:20Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"57575c221838aa8e127f3a77c9663c4dd9767026e6a8efac27e93cf822ec87e8","abstract_canon_sha256":"636efb460398dcc8ee054fde321b1041acd22b8dc9e920c5418ab7e0eddb5098"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:18.757256Z","signature_b64":"RbMB5ap1xnChwXAXIlBWa37fWu2PuNpv9e24E3RMLQn5lnOkmqEzMQ/mSJvsD9yJIB/9RfLzNN28pXj+ln3CAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"228eecf4d4b16345c2c7d3f55c836937742c3b1dbd2c76a2a64268a6b5412174","last_reissued_at":"2026-05-18T01:45:18.756837Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:18.756837Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First gravitational lensing mass estimate of a damped Lyman-alpha galaxy at z=2.2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"C. Grillo, J. P. U. Fynbo","submitted_at":"2014-01-20T21:00:20Z","abstract_excerpt":"We present the first lensing total mass estimate of a galaxy, at redshift 2.207, that acts as a gravitational deflector and damped Lyman-alpha absorber on the background QSO SDSS J1135-0010, at redshift 2.888. The remarkably small projected distance, or impact parameter, between the lens and the source has been estimated to be 0.8 +/- 0.1 kpc in a recent work. By exploiting the Sloan Digital Sky Survey database, we establish a likely lensing magnification signal in the photometry of the QSO. This is determined to be 2.2 mag brighter (or 8 times more luminous) than the median QSO at comparable "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5073","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":"1401.5073","created_at":"2026-05-18T01:45:18.756902+00:00"},{"alias_kind":"arxiv_version","alias_value":"1401.5073v1","created_at":"2026-05-18T01:45:18.756902+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5073","created_at":"2026-05-18T01:45:18.756902+00:00"},{"alias_kind":"pith_short_12","alias_value":"EKHOZ5GUWFRU","created_at":"2026-05-18T12:28:28.263976+00:00"},{"alias_kind":"pith_short_16","alias_value":"EKHOZ5GUWFRULQWH","created_at":"2026-05-18T12:28:28.263976+00:00"},{"alias_kind":"pith_short_8","alias_value":"EKHOZ5GU","created_at":"2026-05-18T12:28:28.263976+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/EKHOZ5GUWFRULQWH2P2VZA3JG5","json":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5.json","graph_json":"https://pith.science/api/pith-number/EKHOZ5GUWFRULQWH2P2VZA3JG5/graph.json","events_json":"https://pith.science/api/pith-number/EKHOZ5GUWFRULQWH2P2VZA3JG5/events.json","paper":"https://pith.science/paper/EKHOZ5GU"},"agent_actions":{"view_html":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5","download_json":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5.json","view_paper":"https://pith.science/paper/EKHOZ5GU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1401.5073&json=true","fetch_graph":"https://pith.science/api/pith-number/EKHOZ5GUWFRULQWH2P2VZA3JG5/graph.json","fetch_events":"https://pith.science/api/pith-number/EKHOZ5GUWFRULQWH2P2VZA3JG5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5/action/storage_attestation","attest_author":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5/action/author_attestation","sign_citation":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5/action/citation_signature","submit_replication":"https://pith.science/pith/EKHOZ5GUWFRULQWH2P2VZA3JG5/action/replication_record"}},"created_at":"2026-05-18T01:45:18.756902+00:00","updated_at":"2026-05-18T01:45:18.756902+00:00"}