{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IYVR2RCXD7QRT5OPT56WBPBO77","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":"10fc5f6e60ba887b81fdc06293c79004391884c379500499d1a313a6c55d28b9","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-07T23:37:23Z","title_canon_sha256":"6edbaf843e8a31f2a81783492c4be9704aa42090832c48ab010e784f33535b54"},"schema_version":"1.0","source":{"id":"1907.03366","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.03366","created_at":"2026-05-17T23:41:16Z"},{"alias_kind":"arxiv_version","alias_value":"1907.03366v1","created_at":"2026-05-17T23:41:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.03366","created_at":"2026-05-17T23:41:16Z"},{"alias_kind":"pith_short_12","alias_value":"IYVR2RCXD7QR","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IYVR2RCXD7QRT5OP","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IYVR2RCX","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:5c2ef73c82e660cd197a0a8a080b5904f1f16e4397fc812912740239bb8be05f","target":"graph","created_at":"2026-05-17T23:41:16Z","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":"Molecules composed of atoms exhibit properties not inherent to their constituent atoms. Similarly, meta-molecules consisting of multiple meta-atoms possess emerging features that the meta-atoms themselves do not possess. Metasurfaces composed of meta-molecules with spatially variant building blocks, such as gradient metasurfaces, are drawing substantial attention due to their unconventional controllability of the amplitude, phase, and frequency of light. However, the intricate mechanisms and the large degrees of freedom of the multi-element systems impede an effective strategy for the design a","authors_text":"Andrew S. Kim, Dayu Zhu, Kyu-Tae Lee, Lakshmi Raju, Wenshan Cai, Zhaocheng Liu","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-07T23:37:23Z","title":"Compounding meta-atoms into meta-molecules with hybrid artificial intelligence techniques"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03366","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:a5c90604e8b2fc8648708a1df5081915582286730c24d6037ac5da143534ae81","target":"record","created_at":"2026-05-17T23:41:16Z","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":"10fc5f6e60ba887b81fdc06293c79004391884c379500499d1a313a6c55d28b9","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-07-07T23:37:23Z","title_canon_sha256":"6edbaf843e8a31f2a81783492c4be9704aa42090832c48ab010e784f33535b54"},"schema_version":"1.0","source":{"id":"1907.03366","kind":"arxiv","version":1}},"canonical_sha256":"462b1d44571fe119f5cf9f7d60bc2effc3fcac90f8e494c335adfccdd998ba95","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"462b1d44571fe119f5cf9f7d60bc2effc3fcac90f8e494c335adfccdd998ba95","first_computed_at":"2026-05-17T23:41:16.429916Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:16.429916Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PtcoWrUIbktj8ox+zKkJYV8ESqSPn10HXWRRMMdpO8+8+6xzNZSw6HlGNTiITnOlRCBwxUOV86yEAhXcDdXcDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:16.430376Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.03366","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5c90604e8b2fc8648708a1df5081915582286730c24d6037ac5da143534ae81","sha256:5c2ef73c82e660cd197a0a8a080b5904f1f16e4397fc812912740239bb8be05f"],"state_sha256":"28ebf2b9bf1be6bc38dfadd82921fa0f93cb8b5fdbe6dae2594c7ab43e4a0b4a"}