Thousands of crypto projects exist, but not all are valid. Many are scams and shitcoins, but many have also been created to solve real-world problems. So, to root out the good from the bad, you must consider and only...
Bitcoin is the umbrella term for cryptocurrency, even though more than 19,000 other digital assets are on the market. They are called Altcoins and refer to the other digital currencies apart from Bitcoin, the pioneer token for decentralized finance.
Altcoins...
Proof of Work or PoW as it is commonly called is the first consensus algorithm that emerge which gets to secures many cryptocurrencies and altcoins transactions, these includes popular cryptocurrencies like Bitcoin and Ethereum; according to reports, Proof of Work has been in existence since the pre-cryptocurrency days, and it is still much valid in the affairs of some transactions today most especially in cryptocurrencies.