How does Steem store user generated content like images and videos? Are they in the blockchain itself? If so, how do they solve the problem of people downloading the blockchain being liable for illegal content added by other users?
>If so, how do they solve the problem of people downloading the blockchain being liable for illegal content added by other users?
Divide each file into N shards, make sure every miner has no more than N/2 shards of any file at any point in time. You only 'get' a complete file if you specifically ask for it.