Create tamper-proof evidence that home care services were actually delivered — caregiver check-ins, service details, GPS timestamps — without exposing any personal information.
Home care services happen behind closed doors. Families, insurers, and regulators must trust that caregivers actually performed the services they logged. Current systems — paper forms, app check-ins, GPS tracking — can all be faked or manipulated.
Fraud Risk
Service records in centralized databases can be backdated, edited, or fabricated after the fact.
Privacy Sensitivity
Care records contain health data, home addresses, and personal details. PDPA and health data regulations strictly limit how this data can be shared.
Audit Burden
Government auditors review thousands of service records. Manual verification is slow, expensive, and error-prone.
After each home visit, the care management system generates a SHA-256 hash of the complete service record (caregiver ID, timestamp, GPS, service items). The original data stays in the care system.
MidnightZK creates a zero-knowledge proof and anchors it on the Midnight blockchain. The proof proves the record existed at that exact moment — no health data, no personal information touches the blockchain.
Auditors re-hash the service record and check it against the blockchain. If the record was altered after anchoring, the hashes won't match — caught instantly. No need to trust the database.
Long-term care data is among the most sensitive categories of personal information. MidnightZK is designed so that zero personal data ever reaches the blockchain:
Only the SHA-256 hash is transmitted — not the care record itself
Zero data retention — payloads are processed in memory and destroyed
Midnight's shielded state ensures on-chain data reveals nothing about the original record
Compliant with Taiwan's Personal Data Protection Act (PDPA) and health data regulations
Contact us to explore how MidnightZK can integrate with your care management system.
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