Thanks, I have heard about it but haven't read the white paper. If I understand correctly it seems to be similar to IPFS but with a built in mechanism to reward peers for bandwidth/storage. It looks interesting and seems to solve a real problem.

Could it serve as a "data layer" for an arbitrary "blockchain" database however? Seems like this would only be possible if the Storj blockchain maintains some sort of ordered index of all files stored within the network (and ensures that unavailable files are removed from the index when they become unavailable). Is that the case?