<p>People say a "block is mined". What exactly do they mean? 
I know mining is related to some group of people does a lot of work and get rewarded for the power and energy they utilized during the process. But what process are they performing and why? 
I read from white paper of bitcoin that they perform work like guessing the nounce number which is randomly generated number attached to the block. So, is it really necessary to attach this random number to the block containing transactions in the first place and then wasting resources in guessing it. 
I didn't wanted to flood this portal with small questions like this, so I think only in one go the explanation to this thing will work. </p>

<bitcoin-core><blockchain>
What does the term Mining means?
Ratik
# What does the term Mining means?

(Asked by: username_0 on 2018-04-01)

People say a "block is mined". What exactly do they mean?
I know mining is related to some group of people does a lot of work and get rewarded for the power and energy they utilized during the process. But what process are they performing and why?
I read from white paper of bitcoin that they perform work like guessing the nounce number which is randomly generated number attached to the block. So, is it really necessary to attach this random number to the block containing transactions in the first place and then wasting resources in guessing it.
I didn't wanted to flood this portal with small questions like this, so I think only in one go the explanation to this thing will work.

**Tags:** bitcoin-core, blockchain


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