Blockchain is the next big thing in terms of internet technologies. Bitcoin, the cryptocurrency, is built on blockchain. Blockchain is essentially a distributed ledger where copies of the entire ledger are kept on every machine so that it can never be lost or corrupted, the only problem is that everyone can see everything for the entire history of the lifetime of the system.
In terms of identity, your identity on the blockchain is anonymous, however if someone links your actual identity to your key, all of your transactions can be known to that person be they an individual or a government or whatever.
The beauty of the system is that it is kept honest by everyone and so it is definitive, more accurate and less prone to corruption than any previous form of technology used for the same purpose, and so it is of great interest to banks who both fear and revere it as it could at worst replace them and at best help them improve many of their processes.
What does it mean for us though? With all technology there are good and bad sides. It can change things for the better but can also be abused for power. Because it is so little understood by the mainstream, it can be implemented and employed under the radar and services then deployed on it. For example, it could help implement the system of not being able to buy or sell without the mark of the beast. Once your identity is set in the system, literally everything you do within it can be tracked… if a one world currency was set up with a blockchain it is probably game over once we start using phones to pay for things using it… all you would need is your code and you could pay using it, and not only that, bots, called smart contracts can be deployed on it too to interact with everything you do to automate absolutely everything from paying your wages, to paying vat back to government instantly, taxes, fines and it could all orchestrate together without any intervention from humans once these agents are set up.
Keep a close watch on how it develops…