{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JWABGKPFFFQKA4OCDJIUUZRK7B","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"42a0bf3a90db4bd7559427cb318182692731721b9dad7a8b7766d88b339a5082","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-06-12T07:14:18Z","title_canon_sha256":"c9a52a08a1fe1174038a6b235b77b51cd02ad064c3f42eb634a02b6c8aae7fa1"},"schema_version":"1.0","source":{"id":"1806.04365","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.04365","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"arxiv_version","alias_value":"1806.04365v2","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.04365","created_at":"2026-05-17T23:50:07Z"},{"alias_kind":"pith_short_12","alias_value":"JWABGKPFFFQK","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"JWABGKPFFFQKA4OC","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"JWABGKPF","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:b54b27c1d628de512753f7e5a92497113a20227fdc56632f1f4be52d87635181","target":"graph","created_at":"2026-05-17T23:50:07Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Optical fiber is a well-established efficient way to guide and manipulate light and allowing high bandwidth optical transmission for long distance communication with low attenuation. Although a dielectric optical waveguide is efficient for transmitting light, its functionality is limited by the dielectric properties of the materials of core and cladding.The light coming out from optical fiber is typically diverging, and the numerical aperture is determined by the refractive index of the fiber materials. Thus, the light intensity decreases significantly upon exiting the fiber. The use of metasu","authors_text":"Catherine Arndt, Din Ping Tsai, Ho Wai Howard Lee, Indra Ghimire, Jingyi Yang, Pin Chieh Wu, Sudip Gurung","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-06-12T07:14:18Z","title":"Photonic Crystal Fiber Metalens"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.04365","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:442e361583ed072801a0e98d565aee40ac1957844860582245acb930b1e4347e","target":"record","created_at":"2026-05-17T23:50:07Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"42a0bf3a90db4bd7559427cb318182692731721b9dad7a8b7766d88b339a5082","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-06-12T07:14:18Z","title_canon_sha256":"c9a52a08a1fe1174038a6b235b77b51cd02ad064c3f42eb634a02b6c8aae7fa1"},"schema_version":"1.0","source":{"id":"1806.04365","kind":"arxiv","version":2}},"canonical_sha256":"4d801329e52960a071c21a514a662af854aee0b754df6abb0a7b19465b02d3b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d801329e52960a071c21a514a662af854aee0b754df6abb0a7b19465b02d3b8","first_computed_at":"2026-05-17T23:50:07.228648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:07.228648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hsVm1vcIwlajsHXazUoDzZ+Tay0Ivnv5zNi3ElFyhDsPQM0wneKq2VLaoamZBksQfdu1WLF6dkWW9iCtugbqAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:07.229337Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.04365","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:442e361583ed072801a0e98d565aee40ac1957844860582245acb930b1e4347e","sha256:b54b27c1d628de512753f7e5a92497113a20227fdc56632f1f4be52d87635181"],"state_sha256":"5754d70ef15d8eadf20208617def4036ad310a49b8d4091f076c7daa75724b22"}