Block (Block) Beginner's Guide
A Block is a computer file that stores transaction data. New Blocks are connected sequentially to older Blocks, gradually forming a traceable blockchain record.
How Blocks Store Records
A Block can be understood as a computer file that stores transaction data. A blockchain attaches newly created Blocks in sequence after existing records, allowing information to accumulate over time into a continuous, ordered history. Using Bitcoin as an example, a Block typically contains recent transactions, a timestamp, and a reference to the previous Block.
How Blocks Connect to One Another
New Blocks cryptographically reference the data hash of the preceding Block, so any change to older data may affect subsequent links, making records more difficult to alter. The entire chain can be traced back to the original genesis block; the number of confirmed Blocks since that Block is called the block height。
How New Blocks Are Created
In the Bitcoin mechanism, miners use mining to find a Block hash that meets the requirements. Miners who find a valid solution can validate the new Block and its transactions and may receive newly created bitcoins as a reward for their computational work. The Block hash also serves as the Block's unique identifier.
What Happens When Blocks Appear Simultaneously
If multiple miners find valid results at nearly the same time, the network may temporarily form competing chains.nodes typically continue to adopt the chain with more cumulative work and, ultimately, greater length; the other chain is subsequently discarded, and its Blocks become stale blocks. In addition to transactions, Blocks may also store other digital data.
Original Tutorial
https://www.binance.com/en/academy/glossary/block
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