{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:T6X3LH7YTHA2HDE26BPALBEB4L","short_pith_number":"pith:T6X3LH7Y","canonical_record":{"source":{"id":"2111.13426","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-11-26T11:08:50Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e50ef2157c02ae66804acef09baba6aa3e66db71f3e00f4f3b6ac7ee3d0ee479","abstract_canon_sha256":"06471e6c90c892d2a8ec36211d9d475216904497da634ddcb7a66050a10fcead"},"schema_version":"1.0"},"canonical_sha256":"9fafb59ff899c1a38c9af05e058481e2ef7d6a8e247c342ffe58aca5d6e6da6d","source":{"kind":"arxiv","id":"2111.13426","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.13426","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"arxiv_version","alias_value":"2111.13426v2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.13426","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_12","alias_value":"T6X3LH7YTHA2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_16","alias_value":"T6X3LH7YTHA2HDE2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_8","alias_value":"T6X3LH7Y","created_at":"2026-07-05T05:24:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:T6X3LH7YTHA2HDE26BPALBEB4L","target":"record","payload":{"canonical_record":{"source":{"id":"2111.13426","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-11-26T11:08:50Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e50ef2157c02ae66804acef09baba6aa3e66db71f3e00f4f3b6ac7ee3d0ee479","abstract_canon_sha256":"06471e6c90c892d2a8ec36211d9d475216904497da634ddcb7a66050a10fcead"},"schema_version":"1.0"},"canonical_sha256":"9fafb59ff899c1a38c9af05e058481e2ef7d6a8e247c342ffe58aca5d6e6da6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:24:25.256703Z","signature_b64":"NMQjdz2BZAOrcMnawNo2ryJTdw77hhcNkLXVQbmW82Mr4lsu4YBO2zAPhnkW6FM8JXeL8UZ3BaFBSrlG4zDTBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fafb59ff899c1a38c9af05e058481e2ef7d6a8e247c342ffe58aca5d6e6da6d","last_reissued_at":"2026-07-05T05:24:25.256235Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:24:25.256235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.13426","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:24:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"88EuGei0/4yanJBRxcLH7zVJFSD99F82hlAfFhcfxfOjjOl4gcO9uMaLqw/c74MZvya0lAAnNAmgMvohU77RAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:39:03.022617Z"},"content_sha256":"5484a1f194ad77ce756e87216afa3e83ab54ab28bb68bb83e0b24e941d300da1","schema_version":"1.0","event_id":"sha256:5484a1f194ad77ce756e87216afa3e83ab54ab28bb68bb83e0b24e941d300da1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:T6X3LH7YTHA2HDE26BPALBEB4L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The visual appearances of disordered optical metasurfaces","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.optics","authors_text":"Adrian Agreda, Arthur Dufay, Kevin Vynck, Philippe Lalanne, Romain Pacanowski, Xavier Granier","submitted_at":"2021-11-26T11:08:50Z","abstract_excerpt":"Nanostructured materials have recently emerged as a promising approach for material appearance design. Research has mainly focused on creating structural colours by wave interference, leaving aside other important aspects that constitute the visual appearance of an object, such as the respective weight of specular and diffuse reflectances, object macroscopic shape, illumination and viewing conditions. Here, we report the potential of disordered optical metasurfaces for harnessing visual appearance. We develop a multiscale modelling platform for the predictive rendering of macroscopic objects c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.13426","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/2111.13426/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":"2026-07-05T05:24:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nGG6FOH3NXtqvZO6S4ZfEavBgF72bBejB0WOLpcZcVaj6x9dBt4iZdYdzMs4GYUtigAoeuDAPyVal/ahDd1RCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:39:03.023190Z"},"content_sha256":"30d5dfb3f130ed6ef10252a3039232f19abe5795562e172cad2602806aa0e8d8","schema_version":"1.0","event_id":"sha256:30d5dfb3f130ed6ef10252a3039232f19abe5795562e172cad2602806aa0e8d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T6X3LH7YTHA2HDE26BPALBEB4L/bundle.json","state_url":"https://pith.science/pith/T6X3LH7YTHA2HDE26BPALBEB4L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T6X3LH7YTHA2HDE26BPALBEB4L/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":"2026-08-03T18:39:03Z","links":{"resolver":"https://pith.science/pith/T6X3LH7YTHA2HDE26BPALBEB4L","bundle":"https://pith.science/pith/T6X3LH7YTHA2HDE26BPALBEB4L/bundle.json","state":"https://pith.science/pith/T6X3LH7YTHA2HDE26BPALBEB4L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T6X3LH7YTHA2HDE26BPALBEB4L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:T6X3LH7YTHA2HDE26BPALBEB4L","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":"06471e6c90c892d2a8ec36211d9d475216904497da634ddcb7a66050a10fcead","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-11-26T11:08:50Z","title_canon_sha256":"e50ef2157c02ae66804acef09baba6aa3e66db71f3e00f4f3b6ac7ee3d0ee479"},"schema_version":"1.0","source":{"id":"2111.13426","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.13426","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"arxiv_version","alias_value":"2111.13426v2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.13426","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_12","alias_value":"T6X3LH7YTHA2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_16","alias_value":"T6X3LH7YTHA2HDE2","created_at":"2026-07-05T05:24:25Z"},{"alias_kind":"pith_short_8","alias_value":"T6X3LH7Y","created_at":"2026-07-05T05:24:25Z"}],"graph_snapshots":[{"event_id":"sha256:30d5dfb3f130ed6ef10252a3039232f19abe5795562e172cad2602806aa0e8d8","target":"graph","created_at":"2026-07-05T05:24:25Z","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/2111.13426/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nanostructured materials have recently emerged as a promising approach for material appearance design. Research has mainly focused on creating structural colours by wave interference, leaving aside other important aspects that constitute the visual appearance of an object, such as the respective weight of specular and diffuse reflectances, object macroscopic shape, illumination and viewing conditions. Here, we report the potential of disordered optical metasurfaces for harnessing visual appearance. We develop a multiscale modelling platform for the predictive rendering of macroscopic objects c","authors_text":"Adrian Agreda, Arthur Dufay, Kevin Vynck, Philippe Lalanne, Romain Pacanowski, Xavier Granier","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-11-26T11:08:50Z","title":"The visual appearances of disordered optical metasurfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.13426","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":"sha256:5484a1f194ad77ce756e87216afa3e83ab54ab28bb68bb83e0b24e941d300da1","target":"record","created_at":"2026-07-05T05:24:25Z","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":"06471e6c90c892d2a8ec36211d9d475216904497da634ddcb7a66050a10fcead","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-11-26T11:08:50Z","title_canon_sha256":"e50ef2157c02ae66804acef09baba6aa3e66db71f3e00f4f3b6ac7ee3d0ee479"},"schema_version":"1.0","source":{"id":"2111.13426","kind":"arxiv","version":2}},"canonical_sha256":"9fafb59ff899c1a38c9af05e058481e2ef7d6a8e247c342ffe58aca5d6e6da6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fafb59ff899c1a38c9af05e058481e2ef7d6a8e247c342ffe58aca5d6e6da6d","first_computed_at":"2026-07-05T05:24:25.256235Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:24:25.256235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NMQjdz2BZAOrcMnawNo2ryJTdw77hhcNkLXVQbmW82Mr4lsu4YBO2zAPhnkW6FM8JXeL8UZ3BaFBSrlG4zDTBg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:24:25.256703Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.13426","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5484a1f194ad77ce756e87216afa3e83ab54ab28bb68bb83e0b24e941d300da1","sha256:30d5dfb3f130ed6ef10252a3039232f19abe5795562e172cad2602806aa0e8d8"],"state_sha256":"66a4f61bbbf435d75a30924f2ea8b74e64e3df120c1845ee66c24fa0c23d5da6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"17MN4FsRx8eHyBmvFOfVkD5b+HoPSRVj9igHp62pMvnkN6eQXR1yWOgvgEziHhuLk7RPFKjUjo72xBs3lr5CAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:39:03.028003Z","bundle_sha256":"6ef3a14fff3c4f8c93e50004924aff422df11dda3e722220767994964995ef6c"}}