People are over complicating what a *Blockchain" really is. All a Blockchain is, is a public, append only database. That's it. And no, it does not require "pr

People are over complicating what a *Blockchain" really is. All a Blockchain is, is a public, append only database. That's it. And no, it does not require "proof of work". People have released lots of Blockchains that do not have proof of work. They might even use a central authority to sign their blockchain transactions. Public append only databases have existed for a long time, and are quite useful. Someone else gave the example of git. Yes git is a Blockchain. Really. There are a lot of reasons to use a public append only database, as opposed to a private database, hidden behind a central authority.