I am still learning. But, it's a block chain similar to cryptocurrency. My understanding is that I offer a file such as the Ark of the Covenant card. If someone buys that card, that person owns a unique file. It is tracked and verified as unique. They keep it as long as they like or they flip it by selling it to someone else. But, only one person can own it at a time. Some people buy these for their collection and others buy these as an investment to sell later at what they hope will be a higher price.