Issuing HATs and Accepting HAT data

The concept of a PDA is build up from the HAT microserver project. It is a new technology that confers intellectual property rights of personal data to individuals through their ownership of a database, wrapped with containerised microservices.

It enables the HAT owner to have a personal data account (PDA) to freely share their data with applications and websites.

For all intents and purposes a HAT is a PDA

The HAT microserver is fully portable across devices, but is commonly hosted in the cloud. It is provisioned by a HAT Platform Provider (Dataswift) (much like credit cards are provisioned by Visa or Mastercard) and issued by a HAT Issuer (much like how individuals get their Visa/Mastercard from Banks and not by Visa/MasterCard themselves).

By way of its legal, economic and technical architecture, the personal data within a PDA can be legally owned, controlled and processed by individuals. Individuals can install plugs to bring their data in from the Internet, exchange data with applications through data debits and install tools in their microservers to have private AI for insights into their data, their health, their history and their memories. The technology is fully open sourced but services in the HAT ecosystem are built by commercial as well as non-profit organisations.

The HAT project was developed through more than £3m UKRI Digital Economy-funded research projects involving six universities: Cambridge, Edinburgh, Nottingham, Surrey, Warwick, and UWE.


Open Source HAT technology underpins Dataswift PDAs