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modern world is constantly changing
                                                                         THE regarding what’s happening, how it’s
                                                                         happening, and its effect on us. Money is no exception. In
                                                                         recent years we’ve seen a massive uptick in the popularity
                                                                         of cryptocurrencies. These currencies operate on a
                                                                         different type of monetary system than the one we’re used
        CRYPTOCURRENCY:                                                  to.


                                                                           They are powered by blockchain technology.
        Proof of                                                         Blockchain is a big data ledger that many people
                                                                         worldwide can access at anytime. Cryptocurrencies
                                                                         have certain properties that allow them to operate on
        Importance                                                       the blockchain, such as their limited number of coins
                                                                         or tokens. These cryptographic tokens are held in
                                                                         virtual wallets, which use specific keys to access and
                                                                         send cryptocurrency. Here we will discuss the proof of
                                                                         importance in cryptocurrency and how it works.

                                                                         What is Proof of Importance

                                                                           Proof of importance is a cryptographic algorithm
                                                                         for blockchain-based networks that measure
                                                                         value, determines which nodes contribute the most
                                                                         computation time and power to which network, and
                                                                         which nodes are rewarded with tokens or payments. NEM
                                                                         created the PoI algorithm. It runs based on the activity of
                                                                         a node’s blockchain account/wallet. If a user contributes
                                                                         a high amount of action to the network, his importance
                                                                         score will increase, and vice versa.


                                                                         How does Proof of Importance Work

                                                                           Proof of importance is based on the blockchain’s
                                                                         value. This is an essential variable for measuring network
                                                                         health. Proof of Importance is that the more valuable
                                                                         one’s blockchain data is, the higher the likelihood of a
                                                                         node being selected as a leader in block verification. By
                                                                         selecting leaders based on the value of their blockchain
                                                                         data, the network can deter Sybil attacks using the
                                                                         highest quality node in the network. This is because
                                                                         nodes with a higher value will work harder to maintain
                                                                         their importance score, increasing their likelihood of
                                                                         being a reliable leader for block transactions.


                                                                         Why is Proof of Importance Necessary
                                                                           Many people and companies in the blockchain space
                                                                         use Proof of Work as their algorithm. Miners are given
                                                                         token rewards for providing computational power to the
                                                                         network. In theory, this sounds like a fair way to distribute
                                                                         tokens and reward people for their contributions to the
                                                                         network. The problem is that this can only work well if
                                                                         there are a relatively large number of miners working to


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