Bitcoin is the most commonly known cryptocurrency. It’s a decentralized digital currency that is secure and private and can be used in transactions worldwide. It carries with it a number of pros and cons and is currently rather volatile.

In this section we discuss everything Bitcoin including how it works, what it’s worth, how you can “mine Bitcoin”, and more.

Transaction Replay and Replay Protection With Hard Forks Explained


When a coin does a hard fork, two identical blockchains exist until changes to one of the chains is made. To avoid transaction replays (transactions made on one chain being broadcast on the other), at least one chain must implement replay protection (developers of one chain must change the format of transactions to make them unique).