A coin is a unit of digital currency built on its own singular blockchain technology. Coins, also known as cryptocurrency coins, are essentially digital tokens that can be used to purchase goods and services, just like government traditional fiat currency. Each coin has its own unique code and operates independently of other coins. The value of a coin is determined by market demand and supply.
Currently, the most famous cryptocurrencies are Bitcoin and Ethereum, but there exist many others like XRP, Cardano, Polygon, or Dogecoin.
While coins in the crypto world may not have physical form like traditional currency, they offer many advantages like fast and secure transactions, low fees, and a level of anonymity that traditional currencies do not provide. Coins have become an increasingly popular form of investment, with many people buying and holding them in the hopes of seeing their value rise over time.