Blockchain, a distributed ledger, emerged as a promising technology more than a decade ago. There are now public and private blockchain types as well as a hyprid consortium type. One blockchain application in the financial world is improving the know your customer compliance process. A common myth is that blockchain is completely immutable, and some potential road blocks to applications include the entry cost of upgrading legacy software and regulatory uncertainty. In this paper the author reviews the types and uses of blockchain today, debunks five common persistent myths about blockchain, and identifies seven major roadblocks that could stall blockchain’s expansion such as standardization.