{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:DCKDMMHYF3E6V3LCFNQTUPBCLR","short_pith_number":"pith:DCKDMMHY","schema_version":"1.0","canonical_sha256":"18943630f82ec9eaed622b613a3c225c70184d47b8a505a8c467902cd408d955","source":{"kind":"arxiv","id":"1709.07166","version":1},"attestation_state":"computed","paper":{"title":"Semi-Automated Nasal PAP Mask Sizing using Facial Photographs","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Alistair McEwan, Benjamin Johnston, Philip de Chazal","submitted_at":"2017-09-21T06:08:58Z","abstract_excerpt":"We present a semi-automated system for sizing nasal Positive Airway Pressure (PAP) masks based upon a neural network model that was trained with facial photographs of both PAP mask users and non-users. It demonstrated an accuracy of 72% in correctly sizing a mask and 96% accuracy sizing to within 1 mask size group. The semi-automated system performed comparably to sizing from manual measurements taken from the same images which produced 89% and 100% accuracy respectively."},"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":"1709.07166","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CV","submitted_at":"2017-09-21T06:08:58Z","cross_cats_sorted":[],"title_canon_sha256":"e8498341f4defc4c7acb5612cf6f8167cfe8598dc183599be14f8e7505bcef33","abstract_canon_sha256":"5bd343f37acba1dc24b4339abb9de2a82d6ec86e1416a27c7d20e78b21e2bb48"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:33.753368Z","signature_b64":"kGWOzTuyV2E1xG+rDap2Ijla2cVWSD+O0dniDX+5dyRcKt5p3xHYDNC6KLR21csP2yYrdNrSfT9ggPl7OAHOCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18943630f82ec9eaed622b613a3c225c70184d47b8a505a8c467902cd408d955","last_reissued_at":"2026-05-18T00:32:33.752670Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:33.752670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Semi-Automated Nasal PAP Mask Sizing using Facial Photographs","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Alistair McEwan, Benjamin Johnston, Philip de Chazal","submitted_at":"2017-09-21T06:08:58Z","abstract_excerpt":"We present a semi-automated system for sizing nasal Positive Airway Pressure (PAP) masks based upon a neural network model that was trained with facial photographs of both PAP mask users and non-users. It demonstrated an accuracy of 72% in correctly sizing a mask and 96% accuracy sizing to within 1 mask size group. The semi-automated system performed comparably to sizing from manual measurements taken from the same images which produced 89% and 100% accuracy respectively."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.07166","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":""},"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":"1709.07166","created_at":"2026-05-18T00:32:33.752789+00:00"},{"alias_kind":"arxiv_version","alias_value":"1709.07166v1","created_at":"2026-05-18T00:32:33.752789+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.07166","created_at":"2026-05-18T00:32:33.752789+00:00"},{"alias_kind":"pith_short_12","alias_value":"DCKDMMHYF3E6","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_16","alias_value":"DCKDMMHYF3E6V3LC","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_8","alias_value":"DCKDMMHY","created_at":"2026-05-18T12:31:10.602751+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/DCKDMMHYF3E6V3LCFNQTUPBCLR","json":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR.json","graph_json":"https://pith.science/api/pith-number/DCKDMMHYF3E6V3LCFNQTUPBCLR/graph.json","events_json":"https://pith.science/api/pith-number/DCKDMMHYF3E6V3LCFNQTUPBCLR/events.json","paper":"https://pith.science/paper/DCKDMMHY"},"agent_actions":{"view_html":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR","download_json":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR.json","view_paper":"https://pith.science/paper/DCKDMMHY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1709.07166&json=true","fetch_graph":"https://pith.science/api/pith-number/DCKDMMHYF3E6V3LCFNQTUPBCLR/graph.json","fetch_events":"https://pith.science/api/pith-number/DCKDMMHYF3E6V3LCFNQTUPBCLR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR/action/storage_attestation","attest_author":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR/action/author_attestation","sign_citation":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR/action/citation_signature","submit_replication":"https://pith.science/pith/DCKDMMHYF3E6V3LCFNQTUPBCLR/action/replication_record"}},"created_at":"2026-05-18T00:32:33.752789+00:00","updated_at":"2026-05-18T00:32:33.752789+00:00"}