{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:UIB4BEVLGKAQPA3XRVY2XRJAVU","short_pith_number":"pith:UIB4BEVL","canonical_record":{"source":{"id":"2005.09950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-05-20T10:25:30Z","cross_cats_sorted":[],"title_canon_sha256":"ac1d04f1f82b83a89deb57f783c1b99e9ee6625a0722a6dba27b50bfa8cd9826","abstract_canon_sha256":"df5c50fa11e50b79ef73d853e699d3f2a462bbd0f8fa8b0572212d774f398b65"},"schema_version":"1.0"},"canonical_sha256":"a203c092ab32810783778d71abc520ad2f3597142fe780ff53d211a3eae5a509","source":{"kind":"arxiv","id":"2005.09950","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09950","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09950v1","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09950","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_12","alias_value":"UIB4BEVLGKAQ","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_16","alias_value":"UIB4BEVLGKAQPA3X","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_8","alias_value":"UIB4BEVL","created_at":"2026-07-05T01:04:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:UIB4BEVLGKAQPA3XRVY2XRJAVU","target":"record","payload":{"canonical_record":{"source":{"id":"2005.09950","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-05-20T10:25:30Z","cross_cats_sorted":[],"title_canon_sha256":"ac1d04f1f82b83a89deb57f783c1b99e9ee6625a0722a6dba27b50bfa8cd9826","abstract_canon_sha256":"df5c50fa11e50b79ef73d853e699d3f2a462bbd0f8fa8b0572212d774f398b65"},"schema_version":"1.0"},"canonical_sha256":"a203c092ab32810783778d71abc520ad2f3597142fe780ff53d211a3eae5a509","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:04:35.610800Z","signature_b64":"51j4pXCoy4vsAIdACeeV5istY/3/23kfzSSLxC4qaGyH2LSNJA4+wmmWO0lVTDiZxnLom4uKcwJF3T8AH+NkBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a203c092ab32810783778d71abc520ad2f3597142fe780ff53d211a3eae5a509","last_reissued_at":"2026-07-05T01:04:35.610411Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:04:35.610411Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.09950","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":"2026-07-05T01:04:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iukfEhOc6//iGlB54X+pg0jv2ZO8C5gvTlhhRm+FdKQYtnXkGQrwVwQeFvw6AwEQiOXFsskZ6Q12mbM7XxGtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:38:51.426516Z"},"content_sha256":"dc86da47ea1cf2e786af05b83fad3e9cab8fb7b4b31565164a7d21ce1be21fc4","schema_version":"1.0","event_id":"sha256:dc86da47ea1cf2e786af05b83fad3e9cab8fb7b4b31565164a7d21ce1be21fc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:UIB4BEVLGKAQPA3XRVY2XRJAVU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear imaging with all-dielectric metasurfaces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Basudeb Sain, Christian Schlickriede, Lei Wang, Sergey Kruk, Thomas Zentgraf, Yuri Kivshar","submitted_at":"2020-05-20T10:25:30Z","abstract_excerpt":"Nonlinear metasurfaces incorporate many of the functionalities of their linear counterparts such as wavefront shaping but simultaneously they perform nonlinear optical transformations. This dual functionality leads to a rather unintuitive physical behavior which is still widely unexplored for many photonic applications. The nonlinear processes render some basic principles governing the functionality of linear metasurfaces not directly applicable, such as the superposition principle and the geometric optics approximation. On the other hand, nonlinear metasurfaces facilitate new phenomena that a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09950","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.09950/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:04:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g+JKaKBbT8OBelwkJHYQpELGNStZPu1f1xVMAR3YFLFv5EZYNC4B1CGlfeoQj/ZJB8vdaaBee8SS3ZVza6wKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T10:38:51.426898Z"},"content_sha256":"859e708f6e60e8b734dc8c242f6223d762c04a0803bf6b1b015460e97d743d60","schema_version":"1.0","event_id":"sha256:859e708f6e60e8b734dc8c242f6223d762c04a0803bf6b1b015460e97d743d60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/bundle.json","state_url":"https://pith.science/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/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":"2026-07-05T10:38:51Z","links":{"resolver":"https://pith.science/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU","bundle":"https://pith.science/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/bundle.json","state":"https://pith.science/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UIB4BEVLGKAQPA3XRVY2XRJAVU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:UIB4BEVLGKAQPA3XRVY2XRJAVU","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":"df5c50fa11e50b79ef73d853e699d3f2a462bbd0f8fa8b0572212d774f398b65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-05-20T10:25:30Z","title_canon_sha256":"ac1d04f1f82b83a89deb57f783c1b99e9ee6625a0722a6dba27b50bfa8cd9826"},"schema_version":"1.0","source":{"id":"2005.09950","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09950","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09950v1","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09950","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_12","alias_value":"UIB4BEVLGKAQ","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_16","alias_value":"UIB4BEVLGKAQPA3X","created_at":"2026-07-05T01:04:35Z"},{"alias_kind":"pith_short_8","alias_value":"UIB4BEVL","created_at":"2026-07-05T01:04:35Z"}],"graph_snapshots":[{"event_id":"sha256:859e708f6e60e8b734dc8c242f6223d762c04a0803bf6b1b015460e97d743d60","target":"graph","created_at":"2026-07-05T01:04:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2005.09950/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nonlinear metasurfaces incorporate many of the functionalities of their linear counterparts such as wavefront shaping but simultaneously they perform nonlinear optical transformations. This dual functionality leads to a rather unintuitive physical behavior which is still widely unexplored for many photonic applications. The nonlinear processes render some basic principles governing the functionality of linear metasurfaces not directly applicable, such as the superposition principle and the geometric optics approximation. On the other hand, nonlinear metasurfaces facilitate new phenomena that a","authors_text":"Basudeb Sain, Christian Schlickriede, Lei Wang, Sergey Kruk, Thomas Zentgraf, Yuri Kivshar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-05-20T10:25:30Z","title":"Nonlinear imaging with all-dielectric metasurfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09950","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:dc86da47ea1cf2e786af05b83fad3e9cab8fb7b4b31565164a7d21ce1be21fc4","target":"record","created_at":"2026-07-05T01:04:35Z","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":"df5c50fa11e50b79ef73d853e699d3f2a462bbd0f8fa8b0572212d774f398b65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-05-20T10:25:30Z","title_canon_sha256":"ac1d04f1f82b83a89deb57f783c1b99e9ee6625a0722a6dba27b50bfa8cd9826"},"schema_version":"1.0","source":{"id":"2005.09950","kind":"arxiv","version":1}},"canonical_sha256":"a203c092ab32810783778d71abc520ad2f3597142fe780ff53d211a3eae5a509","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a203c092ab32810783778d71abc520ad2f3597142fe780ff53d211a3eae5a509","first_computed_at":"2026-07-05T01:04:35.610411Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:04:35.610411Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"51j4pXCoy4vsAIdACeeV5istY/3/23kfzSSLxC4qaGyH2LSNJA4+wmmWO0lVTDiZxnLom4uKcwJF3T8AH+NkBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:04:35.610800Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.09950","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc86da47ea1cf2e786af05b83fad3e9cab8fb7b4b31565164a7d21ce1be21fc4","sha256:859e708f6e60e8b734dc8c242f6223d762c04a0803bf6b1b015460e97d743d60"],"state_sha256":"61471c4f15257f7492b522fbb8e669a488f1f4f3d859051f59642f3c044c8497"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nRJZtQFHClwZtYp5hBZJrO7jRfuy+BMxK1aNiXQDBbRo0V0DeU5l7sup6bhY7MZlbloJqSMZVQu+y8jpPjttCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T10:38:51.428877Z","bundle_sha256":"1e08524bdd6087d215a5bcc2b0a43cd74042eeaccdc6507b41b44b7e2ff7dde4"}}