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To buy a bitcoin you need to buy it from someone?

Does that mean a miner can only 'create' a bitcoin (or partial bitcoin) when there is a transaction.

So how did it start in the beginning? Someone would have had to be able to create bitcoins.



You get new bitcoins by creating a new block in the block chain (mining). If there are no other transactions in the block that's fine.

The first block is known as the Genesis block. You might find this useful: https://en.bitcoin.it/wiki/Genesis_block




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