{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NBQX7WPZ6O7DSXY345MUXNMUQW","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":"d450acb1ca5c9b2dafe5c3b467046cec78f85a7f0020c8d99f7e5f68ff39a987","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-10-14T03:57:36Z","title_canon_sha256":"b08d05f24df9b596f477ee666d8c56a61676c1b72c8ceb0296f58c86e9b95fa9"},"schema_version":"1.0","source":{"id":"2010.06799","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.06799","created_at":"2026-07-05T01:42:59Z"},{"alias_kind":"arxiv_version","alias_value":"2010.06799v1","created_at":"2026-07-05T01:42:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.06799","created_at":"2026-07-05T01:42:59Z"},{"alias_kind":"pith_short_12","alias_value":"NBQX7WPZ6O7D","created_at":"2026-07-05T01:42:59Z"},{"alias_kind":"pith_short_16","alias_value":"NBQX7WPZ6O7DSXY3","created_at":"2026-07-05T01:42:59Z"},{"alias_kind":"pith_short_8","alias_value":"NBQX7WPZ","created_at":"2026-07-05T01:42:59Z"}],"graph_snapshots":[{"event_id":"sha256:fd24caf71668824c2de5e537974046fa60ae8781419d8ed46b6574281aadfe20","target":"graph","created_at":"2026-07-05T01:42:59Z","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/2010.06799/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"State-of-the-art time-of-flight (ToF) based 3D sensors suffer from poor lateral and depth resolutions. In this work, we introduce a novel sensor concept that provides ToF-based 3D measurements of real world objects with depth precisions up to 35 micrometers and point cloud densities at the native sensor-resolutions of state-of-the-art CMOS/CCD cameras (up to several megapixels). Unlike other continuous-wave amplitude-modulated ToF principles, our approach exploits wavelength diversity for an interferometric surface measurement of macroscopic objects with rough or specular surfaces. Based on th","authors_text":"Fengqiang Li, Florian Willomitzer, Oliver Cossairt, Prasanna Rangarajan","cross_cats":["eess.IV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-10-14T03:57:36Z","title":"Exploiting wavelength diversity for high resolution time-of-flight 3D imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.06799","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":"sha256:187aea2df974f6eca36d6adf8862993af920b90f1351350e9ced29922f5e3d57","target":"record","created_at":"2026-07-05T01:42:59Z","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":"d450acb1ca5c9b2dafe5c3b467046cec78f85a7f0020c8d99f7e5f68ff39a987","cross_cats_sorted":["eess.IV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2020-10-14T03:57:36Z","title_canon_sha256":"b08d05f24df9b596f477ee666d8c56a61676c1b72c8ceb0296f58c86e9b95fa9"},"schema_version":"1.0","source":{"id":"2010.06799","kind":"arxiv","version":1}},"canonical_sha256":"68617fd9f9f3be395f1be7594bb59485b9ab1c26c1462531f6131edfb7b0da2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"68617fd9f9f3be395f1be7594bb59485b9ab1c26c1462531f6131edfb7b0da2b","first_computed_at":"2026-07-05T01:42:59.378650Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:42:59.378650Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1KSG8P+gMavNznjfMGmK8+G3U1CJ1/LyoDSdR+AQ+bkEvqKDTjVefpSa1PkjGMKrKRdaaPOwsxkwHv6ktyg/DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:42:59.379098Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.06799","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:187aea2df974f6eca36d6adf8862993af920b90f1351350e9ced29922f5e3d57","sha256:fd24caf71668824c2de5e537974046fa60ae8781419d8ed46b6574281aadfe20"],"state_sha256":"b96d929c7b703dabfc52561777cce1a0eddc1bcf6cb27b740ab1b9ad6f5f58e0"}