Any CP in the blockchain yet? There probably is, even if it's encrypted. You'd never know, and you'd be distributing it to the scum of the earth.
Copypasting my old post here:
It's hard to prove. If you have file "1.jpg" stored in /home/user/pictures which contains illegal picture - it is "storing of content". But if you have blockchain with encrypted picture which could be picked from it only with help of special software... Uh, I can write a program that will get 128 kilobytes of symbols from Windows system common files, and - bah! - it is illegal content! So ALL users of this Windows version can be blamed.Edited: and yes, if you are afraid, you can store blockchain in encrypted virtual machine or VPS.