Basically this. You, a mathematician, walk into the class to purchase a brick to label. The first class has solved sudokus with deterministic difficulty to pr

Basically this. You, a mathematician, walk into the class to purchase a brick to label. The first class has solved sudokus with deterministic difficulty to prove they did work to build the structure, whereas in the second class you have just dice sums & have to trust them telling you they rolled the diced only every fixed interval etc. It's distributed but not decentralized.