{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:NJIEV3LZP35J5YUXVG5IQAIX23","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":"ae3eaf658dfde50fa614bae8b63bcef465fecb101383709f97aaf0293de015fc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-03-03T16:12:20Z","title_canon_sha256":"753be2410b381ec42865a9bab62c56679fbdd2bea3049fccf9227b2fe9663c48"},"schema_version":"1.0","source":{"id":"2503.01699","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.01699","created_at":"2026-07-05T10:23:12Z"},{"alias_kind":"arxiv_version","alias_value":"2503.01699v1","created_at":"2026-07-05T10:23:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.01699","created_at":"2026-07-05T10:23:12Z"},{"alias_kind":"pith_short_12","alias_value":"NJIEV3LZP35J","created_at":"2026-07-05T10:23:12Z"},{"alias_kind":"pith_short_16","alias_value":"NJIEV3LZP35J5YUX","created_at":"2026-07-05T10:23:12Z"},{"alias_kind":"pith_short_8","alias_value":"NJIEV3LZ","created_at":"2026-07-05T10:23:12Z"}],"graph_snapshots":[{"event_id":"sha256:05df11063dfdd984584b95571eefc3e353a8824b2993550960d7249e5c6a2c59","target":"graph","created_at":"2026-07-05T10:23:12Z","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/2503.01699/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Blood oxygen saturation (SpO2) is a crucial vital sign routinely monitored in medical settings. Traditional methods require dedicated contact sensors, limiting accessibility and comfort. This study presents a deep learning framework for contactless SpO2 measurement using an off-the-shelf camera, addressing challenges related to lighting variations and skin tone diversity. We conducted two large-scale studies with diverse participants and evaluated our method against traditional signal processing approaches in intra- and inter-dataset scenarios. Our approach demonstrated consistent accuracy acr","authors_text":"Daniel McDuff, Haruta Suzuki, Hongming Hu, Izumi Nishidate, Jiankai Tang, Linhong Ji, Luxi Zhou, Nodoka Nagao, Wei Li, Xin Liu, Yuanchun Shi, Yuki Nagahama, Yuntao Wang, Zhang Jiang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-03-03T16:12:20Z","title":"Camera Measurement of Blood Oxygen Saturation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.01699","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:be2f0e4d00c0bfe86eec67b62760a1ca211ae53ea29d1c283f5c205a652dee45","target":"record","created_at":"2026-07-05T10:23:12Z","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":"ae3eaf658dfde50fa614bae8b63bcef465fecb101383709f97aaf0293de015fc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CE","submitted_at":"2025-03-03T16:12:20Z","title_canon_sha256":"753be2410b381ec42865a9bab62c56679fbdd2bea3049fccf9227b2fe9663c48"},"schema_version":"1.0","source":{"id":"2503.01699","kind":"arxiv","version":1}},"canonical_sha256":"6a504aed797efa9ee297a9ba880117d6ed992d6f983f28a4af86798c372a3f83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a504aed797efa9ee297a9ba880117d6ed992d6f983f28a4af86798c372a3f83","first_computed_at":"2026-07-05T10:23:12.749080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:23:12.749080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2pedidH8TamLgttmxN/gTM7Ti7oIHnoSSoQ0b7MQJPIOt/zbSOxpSCHaaVfm3IKGOYj84U6Je9dh6ZQde39uDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:23:12.749621Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.01699","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be2f0e4d00c0bfe86eec67b62760a1ca211ae53ea29d1c283f5c205a652dee45","sha256:05df11063dfdd984584b95571eefc3e353a8824b2993550960d7249e5c6a2c59"],"state_sha256":"34486a16627d0254c3873ca349d3a9304b031ec37d1ed43f4710d932c2eff1e0"}