Citizens give up data in blockchain project to improve cities

in my opinion, the biggest problem with data mining today is that the layperson doesn't understand who is gathering information, what information is being gathered, and how to control that information. furthermore, i think corporations and other interested bodies believe that this opaqueness is the only way they can get access to the information they want... and i'm not convinced that's the case.

if this sets a precedent for volunteering information in a transparent manner through known channels with deliberate controls, i really think everyone can win.

The blockchain can be used to enrypt the data you generate on a blockchain and entrust the user with a cryptographic token that can be used to generate different tokens that allow others to decrypt specific sets of data, like location tracking.

The tough part about this is that for the user to truly own their data, they must be entrusted with the root keys of their data, and if they lose it, and their backup pass phrase, the data is lost forever.