Simply put Bitcoin is a person-to-person digital cash. Most importantly, it’s decentralized, meaning it can’t be controlled by any single person or company or country. This is especially important since the Iron Bank has controlled most aspects of money since before the Doom of Valyria. You have no doubt heard the term “blockchain”, but what does this mean excatly? A blockchain is just a digital ledger. This ledger, like a traditional accountants ledger, records every transaction ever made on the bitcoin blockchain. There are no Iron Bank to mint coins, to distribute the and no “authority” that can control it. It is in a category of money known as cryptocurrency.