{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:UTPDPK4HWQPSWQTDXFJOZFA7XJ","short_pith_number":"pith:UTPDPK4H","schema_version":"1.0","canonical_sha256":"a4de37ab87b41f2b4263b952ec941fba77d86de0a22193ec3277a7633b42e0ef","source":{"kind":"arxiv","id":"2104.05325","version":1},"attestation_state":"computed","paper":{"title":"Multi-level reversible encryption for ECG signals using compressive sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Jenni Raitoharju, Mehmet Yama\\c{c}, Mikko Impi\\\"o","submitted_at":"2021-04-12T10:10:43Z","abstract_excerpt":"Privacy concerns in healthcare have gained interest recently via GDPR, with a rising need for privacy-preserving data collection methods that keep personal information hidden in otherwise usable data. Sometimes data needs to be encrypted for several authentication levels, where a semi-authorized user gains access to data stripped of personal or sensitive information, while a fully-authorized user can recover the full signal. In this paper, we propose a compressive sensing based multi-level encryption to ECG signals to mask possible heartbeat anomalies from semi-authorized users, while preservi"},"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":"2104.05325","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2021-04-12T10:10:43Z","cross_cats_sorted":[],"title_canon_sha256":"016914c2e42d5c05d6dbf9ce0d21fba62e861c02a8f011977f7d5c99988cc359","abstract_canon_sha256":"d19265edfaad43c94ea46314fd5dd79f3e4e8425bf9511639f22245fcac923c7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:31:11.218096Z","signature_b64":"sv7x/GWQy2bmVNF4IM0KN9AFRNpcKjMCKjVQ1hgVLIv5aEPGpT+MN4U24g+biVW0MhqxrkwyYPC/p/JztbdcAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a4de37ab87b41f2b4263b952ec941fba77d86de0a22193ec3277a7633b42e0ef","last_reissued_at":"2026-07-05T02:31:11.217550Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:31:11.217550Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-level reversible encryption for ECG signals using compressive sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Jenni Raitoharju, Mehmet Yama\\c{c}, Mikko Impi\\\"o","submitted_at":"2021-04-12T10:10:43Z","abstract_excerpt":"Privacy concerns in healthcare have gained interest recently via GDPR, with a rising need for privacy-preserving data collection methods that keep personal information hidden in otherwise usable data. Sometimes data needs to be encrypted for several authentication levels, where a semi-authorized user gains access to data stripped of personal or sensitive information, while a fully-authorized user can recover the full signal. In this paper, we propose a compressive sensing based multi-level encryption to ECG signals to mask possible heartbeat anomalies from semi-authorized users, while preservi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05325","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/2104.05325/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":"2104.05325","created_at":"2026-07-05T02:31:11.217608+00:00"},{"alias_kind":"arxiv_version","alias_value":"2104.05325v1","created_at":"2026-07-05T02:31:11.217608+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05325","created_at":"2026-07-05T02:31:11.217608+00:00"},{"alias_kind":"pith_short_12","alias_value":"UTPDPK4HWQPS","created_at":"2026-07-05T02:31:11.217608+00:00"},{"alias_kind":"pith_short_16","alias_value":"UTPDPK4HWQPSWQTD","created_at":"2026-07-05T02:31:11.217608+00:00"},{"alias_kind":"pith_short_8","alias_value":"UTPDPK4H","created_at":"2026-07-05T02:31:11.217608+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/UTPDPK4HWQPSWQTDXFJOZFA7XJ","json":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ.json","graph_json":"https://pith.science/api/pith-number/UTPDPK4HWQPSWQTDXFJOZFA7XJ/graph.json","events_json":"https://pith.science/api/pith-number/UTPDPK4HWQPSWQTDXFJOZFA7XJ/events.json","paper":"https://pith.science/paper/UTPDPK4H"},"agent_actions":{"view_html":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ","download_json":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ.json","view_paper":"https://pith.science/paper/UTPDPK4H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2104.05325&json=true","fetch_graph":"https://pith.science/api/pith-number/UTPDPK4HWQPSWQTDXFJOZFA7XJ/graph.json","fetch_events":"https://pith.science/api/pith-number/UTPDPK4HWQPSWQTDXFJOZFA7XJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ/action/storage_attestation","attest_author":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ/action/author_attestation","sign_citation":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ/action/citation_signature","submit_replication":"https://pith.science/pith/UTPDPK4HWQPSWQTDXFJOZFA7XJ/action/replication_record"}},"created_at":"2026-07-05T02:31:11.217608+00:00","updated_at":"2026-07-05T02:31:11.217608+00:00"}