The public key is the location where transactions are deposited to and withdrawn from. This is also the key that appears on the blockchain ledger as a user’s digital signature, not unlike a username on a social media newsfeed. The private key is the password required to buy, sell, and trade the bitcoin in a wallet. A private key should be a guarded secret and only used to authorize bitcoin transmissions. Some users protect their private keys by encrypting a wallet with a strong password and, in some cases, by choosing the cold storage option; that is, storing the wallet offline.
Despite receiving significant attention in the financial and investment world, many people do not know how to buy the cryptocurrency Bitcoin, but doing so is as simple as signing up for a mobile app. With cryptocurrency back in the news again, now’s a better time than ever to delve into the weeds and learn more about how to invest. Here's a breakdown of everything you need to know in order to start buying bitcoin.