One general solution is to have persistent nodes in the network that develop reputation over a duration of time, who perform operations that can't be done entir

One general solution is to have persistent nodes in the network that develop reputation over a duration of time, who perform operations that can't be done entirely trustlessly. In Storj's case these are called Satellites. > Whenever a Satellite on the Storj network has a less than stellar payment, demand generation, or performance history, there is a strong incentive for the storage nodes to avoid accepting its data. When a new Satellite joins the network, the participating storage nodes will commence their own vetting process. This process limits their exposure to the new and unknown Satellite, while building trust over time to highlight which of the Satellites have the best payment record. They also incentivize complete file delivery by paying for chunks of bandwidth as they're used to deliver the file, rather than all up front. https://www.storj.io/storj.pdf https://www.storj.io/storj.pdf