Mempool
| A mempool is a mechanism used by network nodes to store information about unconfirmed transactions. When a node receives a new transaction, it first checks to see if the transaction is valid. If it is, the node adds the transaction to its mempool. Once a transaction is added to a mempool, it waits to be included in a block by a miner. The mempool serves two purposes. First, it allows nodes to quickly check whether a new transaction is valid or not. Second, it allows miners to choose which transactions to include in a block. The mempool is constantly changing as new transactions are received and old transactions are confirmed. When a transaction is confirmed, it is removed from the mempool. The size of a mempool can vary depending on the number of unconfirmed transactions and the size of each transaction. A larger mempool means that there are more unconfirmed transactions and that each transaction is larger. The mempool is an important part of the Bitcoin network. It allows nodes to quickly validate new transactions and it allows miners to choose which transactions to include in a block. |
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