The incentive for them to use their computing power to verify transactions is that they are rewarded with Bitcoin if they solve the problem and validate a Bitcoin block.
Bitcoin, Ethereum, Blockchain, Tokens, ICOs: Why should anyone care?
Preethi Kasireddy

Just a minor edit … nor sure if this is clear enough.

You are talking about blockchain and in this and the previous par you flip back to bitcoin and talk about bitcoin rewards.

Might be useful to clarify — either by saying something like “Obviously if the token is something other than Bitcoin, the reward will be in that token”.

Also, you may need to say something about how the reward gets set.

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