When we talk about the blockchain, the first thing that came up in our mind is the security and the security because of the blockchain consensus algorithm. Those who know about the blockchain know that we keep the ledger transactions synchronized across the network to ensure that ledgers only update when the appropriate participants approve transactions and that when ledgers do update, they update with the same transactions in the same order is called consensus. Here we will discuss the three different consensus algorithms.
Practical Byzantine fault tolerance
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