Blockchain and associated technologies offer an unrivalled opportunity to begin to review and redesign the UK’s data systems. Whitehall and public services could be fundamentally rewired to empower citizens and better serve their needs. We should encourage digital entrepreneurship. We must tackle the trust deficit. By introducing a departmental target for blockchain efficiency savings, we could begin to generate a digital dividend to pass on to tax payers or to reinvest. And we can use a mix of classical liberal values and new technologies to strengthen individual freedom and improve the life chances of all. By engaging now, and recognising blockchain’s potential, we can ensure it is used by the state to empower individuals, and to afford us real control over our own data.