{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7QIBOYTVISUFO5HTRE23TP5FRJ","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":"6db98a73fc585c7452f8f3a862fe632a053eaa4d1842422e2e3a783ba3fd8ce5","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-06T15:11:45Z","title_canon_sha256":"d501c16cecb5e34885476285816614baf3d5b1333262b3a5eb2046772e70c19e"},"schema_version":"1.0","source":{"id":"2506.06150","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06150","created_at":"2026-07-05T11:17:26Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06150v1","created_at":"2026-07-05T11:17:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06150","created_at":"2026-07-05T11:17:26Z"},{"alias_kind":"pith_short_12","alias_value":"7QIBOYTVISUF","created_at":"2026-07-05T11:17:26Z"},{"alias_kind":"pith_short_16","alias_value":"7QIBOYTVISUFO5HT","created_at":"2026-07-05T11:17:26Z"},{"alias_kind":"pith_short_8","alias_value":"7QIBOYTV","created_at":"2026-07-05T11:17:26Z"}],"graph_snapshots":[{"event_id":"sha256:9653464b7c8a915e335ab13feecbfd2b55e4d106c6d3f220b6816c8737564e37","target":"graph","created_at":"2026-07-05T11:17:26Z","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/2506.06150/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Inverse-designed nanophotonic devices offer promising solutions for analog optical computation. High-density photonic integration is critical for scaling such architectures toward more complex computational tasks and large-scale applications. Here, we present an inverse-designed photonic neural network (PNN) accelerator on a high-index contrast material platform, enabling ultra-compact and energy-efficient optical computing. Our approach introduces a wave-based inverse-design method based on three dimensional finite-difference time-domain (3D-FDTD) simulations, exploiting the linearity of Maxw","authors_text":"Debin Meng, George Li, Joel Sved, Liwei Li, Shijie Song, Xiaoke Yi","cross_cats":["eess.SP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-06T15:11:45Z","title":"Inverse-designed nanophotonic neural network accelerators for ultra-compact optical computing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06150","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:c7553439adb98ca9cab42aff4ab6a5abcc06c4a44411498f8de6eac667d5b91f","target":"record","created_at":"2026-07-05T11:17:26Z","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":"6db98a73fc585c7452f8f3a862fe632a053eaa4d1842422e2e3a783ba3fd8ce5","cross_cats_sorted":["eess.SP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-06-06T15:11:45Z","title_canon_sha256":"d501c16cecb5e34885476285816614baf3d5b1333262b3a5eb2046772e70c19e"},"schema_version":"1.0","source":{"id":"2506.06150","kind":"arxiv","version":1}},"canonical_sha256":"fc1017627544a85774f38935b9bfa58a6ad1918c149f6b2c54171443cb429d5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fc1017627544a85774f38935b9bfa58a6ad1918c149f6b2c54171443cb429d5a","first_computed_at":"2026-07-05T11:17:26.579634Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:26.579634Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AXyeUQDsWsXzrE31Rm26uzVU4CtujagHKVwyol5nYDZlAiX76ztgPbjsm8Vu+cYhi1qSkQSMOQf7Mb2KUceyBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:26.580169Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.06150","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c7553439adb98ca9cab42aff4ab6a5abcc06c4a44411498f8de6eac667d5b91f","sha256:9653464b7c8a915e335ab13feecbfd2b55e4d106c6d3f220b6816c8737564e37"],"state_sha256":"71dee90d4855e0ff10bc1f8c1e1144b62955f2fda1c1894c4919315f42828b46"}