In the previous article, Creating a Blockchain Using JavaScript, you learned how to create a simple blockchain application in JavaScript.
Proof-of-Work is one of the most common needs of a blockchain that approves and validates any transactions occurring on the blockchain. We can say, Proof-of-Work, or PoW, is the original consensus algorithm in a Blockchain network.
In the following video, Zulfikar Ramzan, a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire explains the bitcoin proof of work.
A proof-of-work can be implemented in a blockchain using various programming languages, depending on the project. In this video, developer expalins the basic concent of Proof-of-Work functionality and how to add it to a blockchain using JavaScript.
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