What is a cryptocurrency & how does it work?

: 18 A cryptocurrency, crypto-currency, or crypto [a] is a digital currency designed to work as a medium of exchange through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it.

Is cryptocurrency a decentralized currency?

Cryptocurrency, sometimes called crypto-currency or crypto, is any form of currency that exists digitally or virtually and uses cryptography to secure transactions. Cryptocurrencies don't have a central issuing or regulating authority, instead using a decentralized system to record transactions and issue new units. What is cryptocurrency?

What is a cryptocurrency node?

A node is a computer that connects to a cryptocurrency network. The node supports the cryptocurrency's network through either relaying transactions, validation, or hosting a copy of the blockchain. In terms of relaying transactions, each network computer (node) has a copy of the blockchain of the cryptocurrency it supports.

What cryptocurrencies are available on NerdWallet?

NerdWallet has created guides to some widely circulated cryptocurrencies, including Bitcoin and some altcoins, or Bitcoin alternatives: Bitcoin is the first and most valuable cryptocurrency. Ethereum is commonly used to carry out financial transactions more complex than those supported by Bitcoin.