What Is the ‘Mempool’ and Its Function in Cryptocurrency Transactions?

The Mempool (Memory Pool) is a staging area for unconfirmed transactions that have been broadcast to the network but have not yet been included in a block by a miner. Its primary function is to hold and validate these transactions, allowing miners to select the most profitable ones (typically those with the highest fees) to include in the next block.

It acts as a backlog for network activity.

What Is a “Mempool” in the Context of a Cryptocurrency Network?
What Is the General Algorithm Miners Use to Select Transactions for a Block?
How Does the Mempool Relate to a Miner’s Transaction Selection Process?
How Does a Mempool Relate to the Speed of a Transaction Confirmation?
What Is ‘Mempool’ in the Context of Transaction Congestion?
Define the “Mempool” and Its Role in a Public Blockchain’s Transaction Lifecycle
What Is ‘Transaction Malleability’?
What Is the Difference between a Node’s Mempool and the Global Set of Unconfirmed Transactions?

Glossar