I decided to attach each node to a person. Everyone who wants to become a miner shall make a video of his or her face and take a photo. Validation includes comparison of photo and video in order to make sure that it’s the same face. Video is only required, because it is almost impossible to forge, unlike photo.
Democratic coin (Dcoin or DC) is a decentralized electronic currency introduced in April 2014. Dcoin doesn’t have any central servers to process transactions or store funds.
Dcoin is not a bitcoin fork, since the Dcoin engine was written from scratch and features unique solutions that weren’t used in any other e-currency.
Dcoin development began in May 2011 by the programmer from St. Petersburg.
I've read some of of the information available, it's confusing, maybe when I have more time I'll take another look.