> All the information in the record is permanent – it cannot be changed – and each of the computers keeps a copy of the record to ensure this. If you wanted to

> All the information in the record is permanent – it cannot be changed – and each of the computers keeps a copy of the record to ensure this. If you wanted to hack the system, you would have to hack every computer on the network – and this has so far proved impossible, despite many trying, including the US National Security Agency’s finest. The collective power of all these computers is greater than the world’s top 500 supercomputers combined. Isn't this totally incorrect? Not buying the hype.