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Q.  Why does Blockchain need coins or tokens?

Why does Blockchain need coins or tokens?

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Tokens/Coins are used as a medium of exchange between the states. They are digital assets built in to perform a specific function within a blockchain.

When someone does a transaction, there is a change of state, and coins are moved from one address to another address. Apart from that, transactions contain some additional data; this data can be mutated through the change of state. For this reason, blockchains need coins or tokens to incentivize the participants to join their networks.

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