{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:PHD54KQQ2XABJILPWC3GFPQRFB","short_pith_number":"pith:PHD54KQQ","schema_version":"1.0","canonical_sha256":"79c7de2a10d5c014a16fb0b662be11287e91ed5648994968a617885271493408","source":{"kind":"arxiv","id":"2606.10088","version":1},"attestation_state":"computed","paper":{"title":"Interpretable Temporal Facial-Region Motion Analysis for In-the-Wild Parkinson's Disease Video Classification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Riyadh Almushrafy (Majmaah University, Saudi Arabia)","submitted_at":"2026-06-08T19:15:39Z","abstract_excerpt":"Reduced facial expressivity is a common motor manifestation of Parkinson's disease (PD), often described as hypomimia or facial bradykinesia. This paper examines whether temporal motion descriptors extracted from facial-region keypoints can support in-the-wild PD-related video classification on the YouTubePD benchmark. Each video is represented using geometric descriptors from 14 predefined facial regions. Static geometry, normalized geometry, velocity-based descriptors, relative-velocity descriptors, and a GRU sequence baseline are compared under the same binary classification protocol. To as"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.10088","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2026-06-08T19:15:39Z","cross_cats_sorted":[],"title_canon_sha256":"088289612f4511c7ed812ffe182fae7b2d6f9ecd708fda6c6dfc8f9f22d923b1","abstract_canon_sha256":"d0f85a4bb7f62853a3b4606cd27fe8e5147c265b985c1fe5cc3474c075fb2c29"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T00:08:48.628004Z","signature_b64":"wb9tZXiIB+XWqNAoDwAkcCmxxkD5wopr3cQVWhA7yps98/ljwz5Innkkd1eHJCQQKklK7ZtUVaedm6yReo0NAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79c7de2a10d5c014a16fb0b662be11287e91ed5648994968a617885271493408","last_reissued_at":"2026-06-10T00:08:48.626948Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T00:08:48.626948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Interpretable Temporal Facial-Region Motion Analysis for In-the-Wild Parkinson's Disease Video Classification","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Riyadh Almushrafy (Majmaah University, Saudi Arabia)","submitted_at":"2026-06-08T19:15:39Z","abstract_excerpt":"Reduced facial expressivity is a common motor manifestation of Parkinson's disease (PD), often described as hypomimia or facial bradykinesia. This paper examines whether temporal motion descriptors extracted from facial-region keypoints can support in-the-wild PD-related video classification on the YouTubePD benchmark. Each video is represented using geometric descriptors from 14 predefined facial regions. Static geometry, normalized geometry, velocity-based descriptors, relative-velocity descriptors, and a GRU sequence baseline are compared under the same binary classification protocol. To as"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10088","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.10088/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.10088","created_at":"2026-06-10T00:08:48.627120+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.10088v1","created_at":"2026-06-10T00:08:48.627120+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10088","created_at":"2026-06-10T00:08:48.627120+00:00"},{"alias_kind":"pith_short_12","alias_value":"PHD54KQQ2XAB","created_at":"2026-06-10T00:08:48.627120+00:00"},{"alias_kind":"pith_short_16","alias_value":"PHD54KQQ2XABJILP","created_at":"2026-06-10T00:08:48.627120+00:00"},{"alias_kind":"pith_short_8","alias_value":"PHD54KQQ","created_at":"2026-06-10T00:08:48.627120+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB","json":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB.json","graph_json":"https://pith.science/api/pith-number/PHD54KQQ2XABJILPWC3GFPQRFB/graph.json","events_json":"https://pith.science/api/pith-number/PHD54KQQ2XABJILPWC3GFPQRFB/events.json","paper":"https://pith.science/paper/PHD54KQQ"},"agent_actions":{"view_html":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB","download_json":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB.json","view_paper":"https://pith.science/paper/PHD54KQQ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.10088&json=true","fetch_graph":"https://pith.science/api/pith-number/PHD54KQQ2XABJILPWC3GFPQRFB/graph.json","fetch_events":"https://pith.science/api/pith-number/PHD54KQQ2XABJILPWC3GFPQRFB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB/action/storage_attestation","attest_author":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB/action/author_attestation","sign_citation":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB/action/citation_signature","submit_replication":"https://pith.science/pith/PHD54KQQ2XABJILPWC3GFPQRFB/action/replication_record"}},"created_at":"2026-06-10T00:08:48.627120+00:00","updated_at":"2026-06-10T00:08:48.627120+00:00"}