Google's DeepMind plans bitcoin-style health record tracking for hospitals

Tech company's health subsidiary planning digital ledger based on blockchain to let hospitals, the NHS and eventually patients track personal data

Google's AI-powered health tech subsidiary, DeepMind Health, is planning to use a new technology loosely based on bitcoin to let hospitals, the NHS and eventually even patients track what happens to personal data in real-time.

Dubbed "Verifiable Data Audit", the plan is to create a special digital ledger that automatically records every interaction with patient data in a cryptographically verifiable manner. This means any changes to, or access of, the data would be visible.