{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:NSQZVZMPE3QPH7YB3WNGIZZVI4","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":"2ba5c3aac29af38f96344d24257754a5128907094c0b6db62d9ef5bf258e12b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-06-16T07:19:25Z","title_canon_sha256":"fcff23367c463e98757c8ac19ed9e0be160fcf91ac00b18220bf0b53fc616d6a"},"schema_version":"1.0","source":{"id":"2206.07971","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07971","created_at":"2026-07-05T04:32:20Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07971v1","created_at":"2026-07-05T04:32:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07971","created_at":"2026-07-05T04:32:20Z"},{"alias_kind":"pith_short_12","alias_value":"NSQZVZMPE3QP","created_at":"2026-07-05T04:32:20Z"},{"alias_kind":"pith_short_16","alias_value":"NSQZVZMPE3QPH7YB","created_at":"2026-07-05T04:32:20Z"},{"alias_kind":"pith_short_8","alias_value":"NSQZVZMP","created_at":"2026-07-05T04:32:20Z"}],"graph_snapshots":[{"event_id":"sha256:d32fefdb2c8d1dc290d1890572749c2d0ce5f0b290d7a8cf54dbe3b2209c4bce","target":"graph","created_at":"2026-07-05T04:32:20Z","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/2206.07971/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optical materials with centrosymmetry, such as silicon and germanium, are unfortunately absent of second-order nonlinear optical responses, hindering their developments in efficient nonlinear optical devices. Here, a design with an array of slotted nanocubes is proposed to realize remarkable second harmonic generation (SHG) from the centrosymmetric silicon, which takes advantage of enlarged surface second-order nonlinearity, strengthened electric field over the surface of the air-slot, as well as the resonance enhancement by the bound states in the continuum. Compared with that from the array ","authors_text":"C. Fang, G. Han, L. Gu, Q. Yang, Q. Yuan, X. Gan, Y. Hao, Y. Liu, Y. Shao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-06-16T07:19:25Z","title":"Efficient Second Harmonic Generation from Silicon Slotted Nanocubes with Bound States in the Continuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07971","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:b4aca54284541839ef4a4e1e008f1acb6fd026e9bac7e24f3774bd89cf74ad2e","target":"record","created_at":"2026-07-05T04:32:20Z","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":"2ba5c3aac29af38f96344d24257754a5128907094c0b6db62d9ef5bf258e12b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2022-06-16T07:19:25Z","title_canon_sha256":"fcff23367c463e98757c8ac19ed9e0be160fcf91ac00b18220bf0b53fc616d6a"},"schema_version":"1.0","source":{"id":"2206.07971","kind":"arxiv","version":1}},"canonical_sha256":"6ca19ae58f26e0f3ff01dd9a646735473abd325d6ed145caaa88a556be942041","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ca19ae58f26e0f3ff01dd9a646735473abd325d6ed145caaa88a556be942041","first_computed_at":"2026-07-05T04:32:20.663188Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:32:20.663188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"it3PPMQRqhRuBZ2Gr2O2SIfUBFd6Iifu5rkPrxOhbcjMPrKAAer+ueII/RJpEckb88ESbpdEmqgPCu9DD8X9CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:32:20.663802Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.07971","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b4aca54284541839ef4a4e1e008f1acb6fd026e9bac7e24f3774bd89cf74ad2e","sha256:d32fefdb2c8d1dc290d1890572749c2d0ce5f0b290d7a8cf54dbe3b2209c4bce"],"state_sha256":"bd8da1434a8cb295148d61faf2633806213b9c8e4d2a2392a54c89044b1a2f0d"}