The project is 99% finished. The first PoC is on http://github.com/d11e9/poi, the second on http://github.com/proofofindividuality/poi , and there’s a whitepaper on https://github.com/proofofindividuality/poi/blob/master/whitepaper.pdf
The third PoC is being written now, and uses a modified version of the group-sorting algorithm from the first PoC, and then most of the features which were added in the second PoC.
UI Concepts
Features for PoC4
Scrambler, making POI tokens even more anonymous.
Improved groups-sorting algorithm with infinite scalability.