CEX.IO

The genesis block is the first block in the Bitcoin <a href="https://support.cex.io/en/articles/4383554-blockchain" rel="nofollow noopener noreferrer" target="_blank">blockchain</a>. It’s also called the 0-block since it was the first one ever mined.

The genesis block forms the foundation of the entire Bitcoin trading system and is the prototype of all other blocks in the blockchain. This block is unique because it has a 50 BTC reward subsidy that can never be spent.

Genesis block

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