The internet was envisaged as a decentralised global network, but in the past 25 years it has come to be controlled by a few, very powerful, centralised companies. Blockchain is a technological paradigm shift that allows secure, reliable, and direct information transfer between individuals, organisations, and things, so that we can manage, verify, and control the use of our own data.Blockchain also offers a new opportunity for humanity to fix some major problems. It can authenticat...

In digital economies, the Internet enables the "platformisation" of everything. Big technology companies and mobile apps are running mega marketplaces, supported by seamless online payments systems. This rapidly expanding ecosystem is fueled by data. Meanwhile, perceptions of the global financial crisis, data breaches, disinformation and the manipulation of political sentiment have combined to create a modern trust crisis. A lack of trust constrains commerce, particularly in terms of consu...