{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:ZRNCIYH4PQJ4CLN2LK52WD4FT3","short_pith_number":"pith:ZRNCIYH4","schema_version":"1.0","canonical_sha256":"cc5a2460fc7c13c12dba5abbab0f859efe863bb868a01409e12cc2c9da9494f1","source":{"kind":"arxiv","id":"1609.06712","version":1},"attestation_state":"computed","paper":{"title":"Design, characterization and visual performance of a new multizone contact lens","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Clara Llorens-Quintana, Juan A. Monsoriu, Manuel Rodriguez-Vallejo, Walter D. Furlan","submitted_at":"2016-09-21T17:55:17Z","abstract_excerpt":"Objectives: To analyze the whole process involved in the production of a new bifocal Multizone Contact Lens (MCL) for presbyopia.\n  Methods: The optical quality of a new MCL was evaluated by ray tracing software in a model eye with pupil different diameters with the lens centered and decentered. A stock of low addition (+1.5 D) MCL for presbyopia was ordered for manufacturing. Power profiles were measured with a contact lens power mapper, processed with a custom software and compared with the theoretical design. Nine lenses from the stock were fitted to presbyopic subjects and the visual perfo"},"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":"1609.06712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2016-09-21T17:55:17Z","cross_cats_sorted":[],"title_canon_sha256":"28ef5ada8fd8737fe8e5bde8473773bbc941f3b531f110b08bbe65972de13138","abstract_canon_sha256":"a172077c4189d442e0b1b55c7511f308b1baed0c8298662f325f9a8d8deba92b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:05.241643Z","signature_b64":"joSrJLu/oM2VD5w0WWwRqphf/m3XE7ahHNk2NG/9p+rFCZX3gQfiArZfnHrJPXhHs/o6XS1q8de11dR3ISo9DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc5a2460fc7c13c12dba5abbab0f859efe863bb868a01409e12cc2c9da9494f1","last_reissued_at":"2026-05-18T01:04:05.241143Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:05.241143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Design, characterization and visual performance of a new multizone contact lens","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.med-ph","authors_text":"Clara Llorens-Quintana, Juan A. Monsoriu, Manuel Rodriguez-Vallejo, Walter D. Furlan","submitted_at":"2016-09-21T17:55:17Z","abstract_excerpt":"Objectives: To analyze the whole process involved in the production of a new bifocal Multizone Contact Lens (MCL) for presbyopia.\n  Methods: The optical quality of a new MCL was evaluated by ray tracing software in a model eye with pupil different diameters with the lens centered and decentered. A stock of low addition (+1.5 D) MCL for presbyopia was ordered for manufacturing. Power profiles were measured with a contact lens power mapper, processed with a custom software and compared with the theoretical design. Nine lenses from the stock were fitted to presbyopic subjects and the visual perfo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.06712","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":"1609.06712","created_at":"2026-05-18T01:04:05.241227+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.06712v1","created_at":"2026-05-18T01:04:05.241227+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.06712","created_at":"2026-05-18T01:04:05.241227+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZRNCIYH4PQJ4","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZRNCIYH4PQJ4CLN2","created_at":"2026-05-18T12:30:55.937587+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZRNCIYH4","created_at":"2026-05-18T12:30:55.937587+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/ZRNCIYH4PQJ4CLN2LK52WD4FT3","json":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3.json","graph_json":"https://pith.science/api/pith-number/ZRNCIYH4PQJ4CLN2LK52WD4FT3/graph.json","events_json":"https://pith.science/api/pith-number/ZRNCIYH4PQJ4CLN2LK52WD4FT3/events.json","paper":"https://pith.science/paper/ZRNCIYH4"},"agent_actions":{"view_html":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3","download_json":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3.json","view_paper":"https://pith.science/paper/ZRNCIYH4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.06712&json=true","fetch_graph":"https://pith.science/api/pith-number/ZRNCIYH4PQJ4CLN2LK52WD4FT3/graph.json","fetch_events":"https://pith.science/api/pith-number/ZRNCIYH4PQJ4CLN2LK52WD4FT3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3/action/storage_attestation","attest_author":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3/action/author_attestation","sign_citation":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3/action/citation_signature","submit_replication":"https://pith.science/pith/ZRNCIYH4PQJ4CLN2LK52WD4FT3/action/replication_record"}},"created_at":"2026-05-18T01:04:05.241227+00:00","updated_at":"2026-05-18T01:04:05.241227+00:00"}