{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:CTSWBFNKOP46VXZIKAQ42IOZRI","short_pith_number":"pith:CTSWBFNK","schema_version":"1.0","canonical_sha256":"14e56095aa73f9eadf285021cd21d98a01ce31d10971337034060d028b24f40d","source":{"kind":"arxiv","id":"2606.21511","version":1},"attestation_state":"computed","paper":{"title":"A Skin-Tone-Aware Dual-Representation Remote Photoplethysmography Framework for Contactless Respiratory Rate Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Anup Kumar Gupta, Pasi Liljeberg, Puneet Gupta, Trishna Saikia","submitted_at":"2026-06-19T15:06:34Z","abstract_excerpt":"Respiratory rate is a vital indicator of pulmonary and cardiovascular health, yet conventional methods for estimating respiratory rate are often intrusive due to their contact-based nature. Remote photoplethysmography offers a promising non-contact alternative and has been widely used for heart rate estimation; however, its potential for respiratory rate estimation remains underexplored. Existing methods typically adapt green and chrominance-based projections originally designed for heart rate estimation, which only partially capture respiratory dynamics. Most prior work focuses on the Euleria"},"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":"2606.21511","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2026-06-19T15:06:34Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"69eaa8074149a8bcd3a6840d2707789dbb15259e404ad900f27c9818393753a3","abstract_canon_sha256":"383a0b982fd8e06d82c832388254bc7ceea4646b9a14e390702c7bc790bc3598"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T01:13:13.049498Z","signature_b64":"HOkqEtg58YdNTAyqAKhBIwx8A1VTdm1VnD/g/tuvmHGpqa6wTObd2LEz9eMVSXIstfqkNCPNN+hXaySRqWEmBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14e56095aa73f9eadf285021cd21d98a01ce31d10971337034060d028b24f40d","last_reissued_at":"2026-06-23T01:13:13.048921Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T01:13:13.048921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Skin-Tone-Aware Dual-Representation Remote Photoplethysmography Framework for Contactless Respiratory Rate Estimation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Anup Kumar Gupta, Pasi Liljeberg, Puneet Gupta, Trishna Saikia","submitted_at":"2026-06-19T15:06:34Z","abstract_excerpt":"Respiratory rate is a vital indicator of pulmonary and cardiovascular health, yet conventional methods for estimating respiratory rate are often intrusive due to their contact-based nature. Remote photoplethysmography offers a promising non-contact alternative and has been widely used for heart rate estimation; however, its potential for respiratory rate estimation remains underexplored. Existing methods typically adapt green and chrominance-based projections originally designed for heart rate estimation, which only partially capture respiratory dynamics. Most prior work focuses on the Euleria"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21511","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/2606.21511/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":"2606.21511","created_at":"2026-06-23T01:13:13.048993+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.21511v1","created_at":"2026-06-23T01:13:13.048993+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21511","created_at":"2026-06-23T01:13:13.048993+00:00"},{"alias_kind":"pith_short_12","alias_value":"CTSWBFNKOP46","created_at":"2026-06-23T01:13:13.048993+00:00"},{"alias_kind":"pith_short_16","alias_value":"CTSWBFNKOP46VXZI","created_at":"2026-06-23T01:13:13.048993+00:00"},{"alias_kind":"pith_short_8","alias_value":"CTSWBFNK","created_at":"2026-06-23T01:13:13.048993+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/CTSWBFNKOP46VXZIKAQ42IOZRI","json":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI.json","graph_json":"https://pith.science/api/pith-number/CTSWBFNKOP46VXZIKAQ42IOZRI/graph.json","events_json":"https://pith.science/api/pith-number/CTSWBFNKOP46VXZIKAQ42IOZRI/events.json","paper":"https://pith.science/paper/CTSWBFNK"},"agent_actions":{"view_html":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI","download_json":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI.json","view_paper":"https://pith.science/paper/CTSWBFNK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.21511&json=true","fetch_graph":"https://pith.science/api/pith-number/CTSWBFNKOP46VXZIKAQ42IOZRI/graph.json","fetch_events":"https://pith.science/api/pith-number/CTSWBFNKOP46VXZIKAQ42IOZRI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI/action/storage_attestation","attest_author":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI/action/author_attestation","sign_citation":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI/action/citation_signature","submit_replication":"https://pith.science/pith/CTSWBFNKOP46VXZIKAQ42IOZRI/action/replication_record"}},"created_at":"2026-06-23T01:13:13.048993+00:00","updated_at":"2026-06-23T01:13:13.048993+00:00"}