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Photonic","work_id":"1277b0b1-9f04-4c07-a699-0133a62bc193","year":2007}],"snapshot_sha256":"850da8c1c017e0b571d8e773ca8b576529bee9ecb739ccba125def396e30fdac"},"source":{"id":"2605.13707","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-14T17:42:13.436516Z","id":"eb1e3be5-799d-4e3e-97e9-ef7589690062","model_set":{"reader":"grok-4.3"},"one_line_summary":"Giant optical spin-splitting is observed in NbOI2 vdW waveguides through the spin Hall effect, agreeing with a microscopic model and enabling polarization-controlled steering, with a scaling law tied to dielectric anisotropy.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Van der Waals ferroelectric waveguides produce giant optical spin-splitting on sub-micrometer scales","strongest_claim":"We report giant optical spin-splitting through the optical spin Hall effect, which facilitates spatial separation of optical spin currents on sub-micrometer scales, in quantitative agreement with a microscopic light-matter interaction model.","weakest_assumption":"The microscopic light-matter interaction model fully captures the observed spin-splitting without unaccounted contributions from material defects, surface effects, or fabrication variations in the vdW slabs."}},"verdict_id":"eb1e3be5-799d-4e3e-97e9-ef7589690062"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:0ab55a963d47ee457b0099f4ba787691c293c8d353dd102e7c7beeea8ae3cfb6","target":"record","created_at":"2026-05-18T02:44:16Z","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":"5db0a3ae79eebff8dcd21e75ce02b9c0097acc988e7d7fc446e46e0a7da2d719","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-05-13T15:56:02Z","title_canon_sha256":"3d4ca919497865702e1b225b53bcdd57befbb7a6b45d0dabfb8339bf21b95119"},"schema_version":"1.0","source":{"id":"2605.13707","kind":"arxiv","version":1}},"canonical_sha256":"1639d9d3ece42c4323ca713c87e5eaa444caa1c1a2ab4450c944315c4c0a0ea1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1639d9d3ece42c4323ca713c87e5eaa444caa1c1a2ab4450c944315c4c0a0ea1","first_computed_at":"2026-05-18T02:44:16.794934Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:16.794934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nKj3LTUSmre2blGtPueDDrGY7iiRQI3IiCPfvVDorUDPT1omSqJwDqhJ5uC30chFW+gTujWKC1XXygQLW1UtAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:16.795424Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.13707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ab55a963d47ee457b0099f4ba787691c293c8d353dd102e7c7beeea8ae3cfb6","sha256:2f0f97b66e9290a8c0183e98f70fef076ad5307dc64b6b5af4de68bce2a5b0fd","sha256:5764545d078952cbe6e08810bf218a1f7cf143661be38b28c2b14b42acc09738"],"state_sha256":"fb386fbb1e9d78e0ea092e825b68f384eccdbc075f514c77a11406babbe02198"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Ab6luD3kyKleHkZDfe7MZA8Msz4Vqx8FFxkne5LlFErfmHsPmN8u82vQE/FNPeFqdNnSUcBtnbIUrCoYMpuDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T08:26:26.598737Z","bundle_sha256":"fa9be96219ba09e7a6bd11c732515a3d09724423d979c7918a71d5f06d2e9367"}}