{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:EVJ5ROFGNB4DULJ5475P63PPW7","short_pith_number":"pith:EVJ5ROFG","schema_version":"1.0","canonical_sha256":"2553d8b8a668783a2d3de7faff6defb7e4e82d99a243734daf2120f2db586da4","source":{"kind":"arxiv","id":"2207.07434","version":2},"attestation_state":"computed","paper":{"title":"Non-imaging metasurface design for collimated beam shaping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Kirstine Engell Sandager Nielsen, Mads Allerup Carlsen, S{\\o}ren Raza, Xavier Zambrana-Puyalto","submitted_at":"2022-07-15T12:29:50Z","abstract_excerpt":"Non-imaging optical lenses can shape the light intensity from incoherent sources to a desired target intensity profile, which is important for applications in lighting, solar light concentration, and optical beam shaping. Their surface curvatures are designed to ensure optimal transfer of energy from the light source to the target. The performance of such lenses is directly linked to their asymmetric freeform surface curvature, which is challenging to manufacture. Metasurfaces can mimic any surface curvature without additional fabrication difficulty by imparting a spatially-dependent phase del"},"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":"2207.07434","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-07-15T12:29:50Z","cross_cats_sorted":[],"title_canon_sha256":"4587edbfc213876a1453854ab9f31db456b95e0c8a3dbbbb7325c24222f0bcb6","abstract_canon_sha256":"8a5b1a46dab37a341833bafeb5973f2c1e8b16f45f5029c3ee42c99befb1a7c1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:45:57.379633Z","signature_b64":"VZpKjcIXZcKdDioS9kQUxAvktUzkLHULljPw4TZAsCyET+6IKzFSt0FgypGfVz9SuqMoQ/J/YIvIgavM5oE6AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2553d8b8a668783a2d3de7faff6defb7e4e82d99a243734daf2120f2db586da4","last_reissued_at":"2026-07-05T06:45:57.379142Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:45:57.379142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-imaging metasurface design for collimated beam shaping","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Kirstine Engell Sandager Nielsen, Mads Allerup Carlsen, S{\\o}ren Raza, Xavier Zambrana-Puyalto","submitted_at":"2022-07-15T12:29:50Z","abstract_excerpt":"Non-imaging optical lenses can shape the light intensity from incoherent sources to a desired target intensity profile, which is important for applications in lighting, solar light concentration, and optical beam shaping. Their surface curvatures are designed to ensure optimal transfer of energy from the light source to the target. The performance of such lenses is directly linked to their asymmetric freeform surface curvature, which is challenging to manufacture. Metasurfaces can mimic any surface curvature without additional fabrication difficulty by imparting a spatially-dependent phase del"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.07434","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/2207.07434/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":"2207.07434","created_at":"2026-07-05T06:45:57.379200+00:00"},{"alias_kind":"arxiv_version","alias_value":"2207.07434v2","created_at":"2026-07-05T06:45:57.379200+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.07434","created_at":"2026-07-05T06:45:57.379200+00:00"},{"alias_kind":"pith_short_12","alias_value":"EVJ5ROFGNB4D","created_at":"2026-07-05T06:45:57.379200+00:00"},{"alias_kind":"pith_short_16","alias_value":"EVJ5ROFGNB4DULJ5","created_at":"2026-07-05T06:45:57.379200+00:00"},{"alias_kind":"pith_short_8","alias_value":"EVJ5ROFG","created_at":"2026-07-05T06:45:57.379200+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/EVJ5ROFGNB4DULJ5475P63PPW7","json":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7.json","graph_json":"https://pith.science/api/pith-number/EVJ5ROFGNB4DULJ5475P63PPW7/graph.json","events_json":"https://pith.science/api/pith-number/EVJ5ROFGNB4DULJ5475P63PPW7/events.json","paper":"https://pith.science/paper/EVJ5ROFG"},"agent_actions":{"view_html":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7","download_json":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7.json","view_paper":"https://pith.science/paper/EVJ5ROFG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2207.07434&json=true","fetch_graph":"https://pith.science/api/pith-number/EVJ5ROFGNB4DULJ5475P63PPW7/graph.json","fetch_events":"https://pith.science/api/pith-number/EVJ5ROFGNB4DULJ5475P63PPW7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7/action/storage_attestation","attest_author":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7/action/author_attestation","sign_citation":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7/action/citation_signature","submit_replication":"https://pith.science/pith/EVJ5ROFGNB4DULJ5475P63PPW7/action/replication_record"}},"created_at":"2026-07-05T06:45:57.379200+00:00","updated_at":"2026-07-05T06:45:57.379200+00:00"}