What is a Block? What is the Chain?
A block records some of the most recent transactions that occurred in the network. In the case of Bitcoin, a block has the most recent transactions within the past 10 minutes.
Bitcoin has a block time of 10 minutes, which means a new block is created and added to the blockchain every 10 minutes. The chain is the global, completely historic list of all blocks, and thus, a complete record of transactions that have ever occurred.
Each block is mathematically (cryptographically) linked to the block before it. Put simply, each block has a reference to the block before it, so the database cannot be tampered with, and becomes immutable as a result. Any questions? Comment below or slide in our DMs.
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