How to build Consensus Algorithm for Blockchain Network in Javascript

During broadcasting Transactions over our Blockchain network, a certain node may not receive a piece of information, or even there is a bad actor who sent out false information or created fraudulent transactions and broadcasts them to the whole network, convinces everybody that they are legitimate transactions. So, the Consensus Algorithm provides us a way to compare one Node to all the other Nodes inside of the network to confirm that it has the correct data. In this tutorial, we’re gonna create a Consensus Algorithm that implements the Longest Chain rule.

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How to Synchronize Blockchain Network in JavaScript

In previous post, we built a Decentralized Blockchain Network that contained some Nodes, each Node was aware of all others. Today we will synchronize this network so that Blockchain in all Nodes are the same every time mining is done.

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