I am not a blockchain geek, but I can see some great opportunities and possibilities with this technology. In short blockchain is a technology that validates that data is absolutely correct and not tempered with. The data is sealed with a hash and is distributed to a large number of validators, making it extremely hard to change without getting noticed. And yes, when something is not right it will get noticed. This is a really important aspect in modern banking, like for the digital currency Bitcoin that uses this technology.