People are stashing irrevocable child porn links, dox, copyright infringement, and leaked state secrets in the blockchain
by Cory Doctorow from on (#3JK2T)
By design, data placed in the blockchain is visible to everyone in the world and can never be removed; everyone who mines bitcoin makes a copy of the blockchain, and so any illegal content stashed in the blockchain ends up on the computers of every miner. (more")