This hash is publicly observable, but it is impossible to recover any information about the licence just by looking at it. Hence, no private information is publicly disclosed. At the same time, a person can send the digital copy of their driver’s licence via email to, for example, a bank as proof of identification to open an account. The receiving party can easily verify the authenticity of the file by computing its hash and comparing it with the one uploaded on the blockchain.

Via a brilliant millenial, better known as Mr. Andrea Canidio, written roughly, on the whereabouts of the State of Software Tracing Management