{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:3EQIDA7OCOBE7VWS3SRWOXU2IE","short_pith_number":"pith:3EQIDA7O","canonical_record":{"source":{"id":"2607.27076","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-29T16:00:39Z","cross_cats_sorted":["cs.SY","eess.SP","eess.SY"],"title_canon_sha256":"b35be20241e273deeb66630f1251b1671b7b4c634d325cb5e6839892c10b87dc","abstract_canon_sha256":"70637df14b0ace11da1aaec8c0b1a3157e06bb9c78f709d6aa4b23e162185825"},"schema_version":"1.0"},"canonical_sha256":"d9208183ee13824fd6d2dca3675e9a412585ae55b6b07e9d4ac550a2df4eac74","source":{"kind":"arxiv","id":"2607.27076","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27076","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27076v1","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27076","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_12","alias_value":"3EQIDA7OCOBE","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_16","alias_value":"3EQIDA7OCOBE7VWS","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_8","alias_value":"3EQIDA7O","created_at":"2026-07-30T01:23:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:3EQIDA7OCOBE7VWS3SRWOXU2IE","target":"record","payload":{"canonical_record":{"source":{"id":"2607.27076","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-29T16:00:39Z","cross_cats_sorted":["cs.SY","eess.SP","eess.SY"],"title_canon_sha256":"b35be20241e273deeb66630f1251b1671b7b4c634d325cb5e6839892c10b87dc","abstract_canon_sha256":"70637df14b0ace11da1aaec8c0b1a3157e06bb9c78f709d6aa4b23e162185825"},"schema_version":"1.0"},"canonical_sha256":"d9208183ee13824fd6d2dca3675e9a412585ae55b6b07e9d4ac550a2df4eac74","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9208183ee13824fd6d2dca3675e9a412585ae55b6b07e9d4ac550a2df4eac74","last_reissued_at":"2026-07-30T01:23:30.700415Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-30T01:23:30.700415Z"},"source_kind":"arxiv","source_id":"2607.27076","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-30T01:23:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F0qTjSeWYVF/gLxOFPjWHErssmbjkhQBhkHTADeHgp7qXlguRi/ZKn80IvWWsBrbwukgJdPPFCOxPykyNMjnBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:11:33.002627Z"},"content_sha256":"a404e9583a1867c09f5bd592ee69689ba6c1c8f17563746593bee3082aacb64d","schema_version":"1.0","event_id":"sha256:a404e9583a1867c09f5bd592ee69689ba6c1c8f17563746593bee3082aacb64d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:3EQIDA7OCOBE7VWS3SRWOXU2IE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-Beat Cuffless Blood Pressure Estimation Using Ear-PPG and ECG with a Lightweight Hybrid Learning Framework","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SY","eess.SP","eess.SY"],"primary_cat":"cs.LG","authors_text":"Hanbang Hua, Kindeep K. Dhatt, Tengyue Wu, Yayun Du","submitted_at":"2026-07-29T16:00:39Z","abstract_excerpt":"Continuous cuffless blood pressure (BP) monitoring remains challenging due to motion artifacts, physiological variability, and the limited robustness of conventional pulse transit time (PTT) models under dynamic conditions. Many prior approaches rely on multi-second windows to stabilize estimation, an assumption that is frequently violated during real-world monitoring with intermittent signal corruption. Here, we show that discriminative BP-related information is preserved at the single-beat level and present a lightweight multi-modal wearable framework for continuous BP estimation. The system"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27076","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/2607.27076/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-30T01:23:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rWU8dQj8kO5ViH+UWNLQVbXqeSwelLOYMNGjWyMbRT1KTSvWR7twvqGYJy2eT4xCe4yvJ3ThwTgdDHQ70K9EDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:11:33.003123Z"},"content_sha256":"cbbbe3a95cae9bc7b160ae5d9d0a5737833a946b1b9e36901fa05974621ea64f","schema_version":"1.0","event_id":"sha256:cbbbe3a95cae9bc7b160ae5d9d0a5737833a946b1b9e36901fa05974621ea64f"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:3EQIDA7OCOBE7VWS3SRWOXU2IE","target":"integrity","payload":{"note":"DOI is split by whitespace or line breaks in the printed bibliography. Reconstructed DOI 10.1161/CIRCRESAHA.118.313220 resolves to 'Adherence in Hypertension'. A reader following the printed text alone cannot reach it.","snippet":"M. Burnier and B. M. Egan, “Adherence in hypertension,” Circulation Research, vol. 124, no. 7, pp. 1124–1140, 2019. [Online]. Available: https://www.ahajournals.org/doi/abs/10.1161/CIRCRESAHA. 118.313220","arxiv_id":"2607.27076","detector":"doi_compliance","evidence":{"ref_index":4,"verdict_class":"incontrovertible","resolved_title":"Adherence in Hypertension","printed_excerpt":"10.1161/circresaha","reconstructed_doi":"10.1161/CIRCRESAHA.118.313220"},"severity":"advisory","ref_index":4,"audited_at":"2026-07-30T12:01:37.416420Z","event_type":"pith.integrity.v1","detected_doi":"10.1161/CIRCRESAHA.118.313220","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"bfa5036b285e95ec8b6ab736c1082b90205a42a3d573944aee490e42b5752002","paper_version":1,"verdict_class":"incontrovertible","resolved_title":"Adherence in Hypertension","detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":13897,"payload_sha256":"2883f8b4c6f16756650c4dd4290e2ed9a72ea967c98b97ec6f8c1a76a85c4eba","signature_b64":null,"signing_key_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-30T12:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DSiuS0XYIR0DSH5YheT2CZwwMrY19vFTJMvEV5UTJeit6pJNV36n4eONAYggwfHaW3W2b75fCrXMI0sW9S1JDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:11:33.005401Z"},"content_sha256":"e296551aca99c1980e3a7e55342cad11f84725e23aacdcc832b920176451f707","schema_version":"1.0","event_id":"sha256:e296551aca99c1980e3a7e55342cad11f84725e23aacdcc832b920176451f707"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/bundle.json","state_url":"https://pith.science/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-08T16:11:33Z","links":{"resolver":"https://pith.science/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE","bundle":"https://pith.science/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/bundle.json","state":"https://pith.science/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3EQIDA7OCOBE7VWS3SRWOXU2IE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:3EQIDA7OCOBE7VWS3SRWOXU2IE","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"70637df14b0ace11da1aaec8c0b1a3157e06bb9c78f709d6aa4b23e162185825","cross_cats_sorted":["cs.SY","eess.SP","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-29T16:00:39Z","title_canon_sha256":"b35be20241e273deeb66630f1251b1671b7b4c634d325cb5e6839892c10b87dc"},"schema_version":"1.0","source":{"id":"2607.27076","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27076","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27076v1","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27076","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_12","alias_value":"3EQIDA7OCOBE","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_16","alias_value":"3EQIDA7OCOBE7VWS","created_at":"2026-07-30T01:23:30Z"},{"alias_kind":"pith_short_8","alias_value":"3EQIDA7O","created_at":"2026-07-30T01:23:30Z"}],"graph_snapshots":[{"event_id":"sha256:cbbbe3a95cae9bc7b160ae5d9d0a5737833a946b1b9e36901fa05974621ea64f","target":"graph","created_at":"2026-07-30T01:23:30Z","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/2607.27076/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Continuous cuffless blood pressure (BP) monitoring remains challenging due to motion artifacts, physiological variability, and the limited robustness of conventional pulse transit time (PTT) models under dynamic conditions. Many prior approaches rely on multi-second windows to stabilize estimation, an assumption that is frequently violated during real-world monitoring with intermittent signal corruption. Here, we show that discriminative BP-related information is preserved at the single-beat level and present a lightweight multi-modal wearable framework for continuous BP estimation. The system","authors_text":"Hanbang Hua, Kindeep K. Dhatt, Tengyue Wu, Yayun Du","cross_cats":["cs.SY","eess.SP","eess.SY"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-29T16:00:39Z","title":"Single-Beat Cuffless Blood Pressure Estimation Using Ear-PPG and ECG with a Lightweight Hybrid Learning Framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27076","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:a404e9583a1867c09f5bd592ee69689ba6c1c8f17563746593bee3082aacb64d","target":"record","created_at":"2026-07-30T01:23:30Z","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":"70637df14b0ace11da1aaec8c0b1a3157e06bb9c78f709d6aa4b23e162185825","cross_cats_sorted":["cs.SY","eess.SP","eess.SY"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-29T16:00:39Z","title_canon_sha256":"b35be20241e273deeb66630f1251b1671b7b4c634d325cb5e6839892c10b87dc"},"schema_version":"1.0","source":{"id":"2607.27076","kind":"arxiv","version":1}},"canonical_sha256":"d9208183ee13824fd6d2dca3675e9a412585ae55b6b07e9d4ac550a2df4eac74","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9208183ee13824fd6d2dca3675e9a412585ae55b6b07e9d4ac550a2df4eac74","first_computed_at":"2026-07-30T01:23:30.700415Z","kind":"pith_receipt","last_reissued_at":"2026-07-30T01:23:30.700415Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.27076","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a404e9583a1867c09f5bd592ee69689ba6c1c8f17563746593bee3082aacb64d","sha256:cbbbe3a95cae9bc7b160ae5d9d0a5737833a946b1b9e36901fa05974621ea64f","sha256:e296551aca99c1980e3a7e55342cad11f84725e23aacdcc832b920176451f707"],"state_sha256":"2975f1e3ef84fc3bf21112b37bcdef93387cfcd8be061195cc1a5d0c535a1990"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S+u67C1uUvw111WelgXSqiftnZ6v74GVsvk0vRVMzP+SZawDLp1aTC+pY0gtm5L9sLWs9Lng8NKTg8s1wur/Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T16:11:33.007471Z","bundle_sha256":"1a62ae7c5f2abc184cba9b82a4f52eaaa33c773edd86d2792680d41793e3f7e0"}}