{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:IM7O27SPHQ3LSLXJVXQ3C5XWNZ","short_pith_number":"pith:IM7O27SP","canonical_record":{"source":{"id":"1810.05050","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-11T14:40:52Z","cross_cats_sorted":[],"title_canon_sha256":"be49cc50f372864c9ff68e568415f7e17f3456991cfd996b7412f97581de721a","abstract_canon_sha256":"4220ec12e1d9f7a3179ba69a3fc1c2a24621ef170da63e62409775446c362a0d"},"schema_version":"1.0"},"canonical_sha256":"433eed7e4f3c36b92ee9ade1b176f66e714c9444fa0269fe3c72ce2908d2d929","source":{"kind":"arxiv","id":"1810.05050","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.05050","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"arxiv_version","alias_value":"1810.05050v1","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05050","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"pith_short_12","alias_value":"IM7O27SPHQ3L","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IM7O27SPHQ3LSLXJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IM7O27SP","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:IM7O27SPHQ3LSLXJVXQ3C5XWNZ","target":"record","payload":{"canonical_record":{"source":{"id":"1810.05050","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-11T14:40:52Z","cross_cats_sorted":[],"title_canon_sha256":"be49cc50f372864c9ff68e568415f7e17f3456991cfd996b7412f97581de721a","abstract_canon_sha256":"4220ec12e1d9f7a3179ba69a3fc1c2a24621ef170da63e62409775446c362a0d"},"schema_version":"1.0"},"canonical_sha256":"433eed7e4f3c36b92ee9ade1b176f66e714c9444fa0269fe3c72ce2908d2d929","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:04.879199Z","signature_b64":"TYoHE4VH4nypPNixsKGX9CxUSspLqsxWCyqfkGV0jT/hzsTXgEqWxZPSLMYiS0dwERnvptG/JiOvgYTI0CsEAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"433eed7e4f3c36b92ee9ade1b176f66e714c9444fa0269fe3c72ce2908d2d929","last_reissued_at":"2026-05-17T23:52:04.878785Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:04.878785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.05050","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WUxI+bJM+HWh7HpHumwsAhSJBmXEnYQJzhULRZQTnhlLgXgj/54tsEQ/Y/EfDBWC2wobOY/DfSROSxaMpqI0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T12:12:08.249437Z"},"content_sha256":"798b9a975001dbe1392a0b83316df8b76d743d78f49bb048249a2ac679cc922a","schema_version":"1.0","event_id":"sha256:798b9a975001dbe1392a0b83316df8b76d743d78f49bb048249a2ac679cc922a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:IM7O27SPHQ3LSLXJVXQ3C5XWNZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Alexander Y. Zhu, Federico Capasso, Jared Sisler, Wei Ting Chen, Zameer Bharwani","submitted_at":"2018-10-11T14:40:52Z","abstract_excerpt":"Metasurfaces have attracted widespread attention due to an increasing demand of compact and wearable optical devices. For many applications, polarization-insensitive metasurfaces are highly desirable and appear to limit the choice of their constituent elements to isotropic nanostructures. This greatly restricts the degrees of geometric parameters available in designing each nanostructure. Here, we demonstrate a polarization-insensitive metalens using otherwise anisotropic nanofins which offer additional control over the dispersion and phase of the output light. As a result, we can render a met"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05050","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:52:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hhC+pmQd8Fddu16eSqbZaD4e804WqYQxnaT1C2Y5BR5KjqY9LzOsfMKo60ZevmHBg3pywRaSmT584I9I+dWPBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T12:12:08.249789Z"},"content_sha256":"74aef76b01a4e0cda839238247ced8af6a82fb7be82f620fa1d24948217ec017","schema_version":"1.0","event_id":"sha256:74aef76b01a4e0cda839238247ced8af6a82fb7be82f620fa1d24948217ec017"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/bundle.json","state_url":"https://pith.science/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-11T12:12:08Z","links":{"resolver":"https://pith.science/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ","bundle":"https://pith.science/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/bundle.json","state":"https://pith.science/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IM7O27SPHQ3LSLXJVXQ3C5XWNZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:IM7O27SPHQ3LSLXJVXQ3C5XWNZ","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":"4220ec12e1d9f7a3179ba69a3fc1c2a24621ef170da63e62409775446c362a0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-11T14:40:52Z","title_canon_sha256":"be49cc50f372864c9ff68e568415f7e17f3456991cfd996b7412f97581de721a"},"schema_version":"1.0","source":{"id":"1810.05050","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.05050","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"arxiv_version","alias_value":"1810.05050v1","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.05050","created_at":"2026-05-17T23:52:04Z"},{"alias_kind":"pith_short_12","alias_value":"IM7O27SPHQ3L","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"IM7O27SPHQ3LSLXJ","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"IM7O27SP","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:74aef76b01a4e0cda839238247ced8af6a82fb7be82f620fa1d24948217ec017","target":"graph","created_at":"2026-05-17T23:52:04Z","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":"Metasurfaces have attracted widespread attention due to an increasing demand of compact and wearable optical devices. For many applications, polarization-insensitive metasurfaces are highly desirable and appear to limit the choice of their constituent elements to isotropic nanostructures. This greatly restricts the degrees of geometric parameters available in designing each nanostructure. Here, we demonstrate a polarization-insensitive metalens using otherwise anisotropic nanofins which offer additional control over the dispersion and phase of the output light. As a result, we can render a met","authors_text":"Alexander Y. Zhu, Federico Capasso, Jared Sisler, Wei Ting Chen, Zameer Bharwani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-11T14:40:52Z","title":"A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.05050","kind":"arxiv","version":1},"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":"sha256:798b9a975001dbe1392a0b83316df8b76d743d78f49bb048249a2ac679cc922a","target":"record","created_at":"2026-05-17T23:52:04Z","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":"4220ec12e1d9f7a3179ba69a3fc1c2a24621ef170da63e62409775446c362a0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-10-11T14:40:52Z","title_canon_sha256":"be49cc50f372864c9ff68e568415f7e17f3456991cfd996b7412f97581de721a"},"schema_version":"1.0","source":{"id":"1810.05050","kind":"arxiv","version":1}},"canonical_sha256":"433eed7e4f3c36b92ee9ade1b176f66e714c9444fa0269fe3c72ce2908d2d929","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"433eed7e4f3c36b92ee9ade1b176f66e714c9444fa0269fe3c72ce2908d2d929","first_computed_at":"2026-05-17T23:52:04.878785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:04.878785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TYoHE4VH4nypPNixsKGX9CxUSspLqsxWCyqfkGV0jT/hzsTXgEqWxZPSLMYiS0dwERnvptG/JiOvgYTI0CsEAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:04.879199Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.05050","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:798b9a975001dbe1392a0b83316df8b76d743d78f49bb048249a2ac679cc922a","sha256:74aef76b01a4e0cda839238247ced8af6a82fb7be82f620fa1d24948217ec017"],"state_sha256":"a8d982d5229080305d8367d5b5c72023b6cc3ae2d2ff46a2f7db61ae4f437616"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3yaZLE8C2Uaw4R9Zf90QcWbHJEJzcbWUAbLYUopAFd/9V3Ynt9ldCmwSVqRCbZ1rmoZIaAGO5BCfe42T3x6eAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T12:12:08.251728Z","bundle_sha256":"a5354af670c257b47c79de4abb260e3174dcf66eecf229248c0854d7ec5821dd"}}