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What Is ‘Mempool’ in the Context of Transaction Congestion?

The Mempool (Memory Pool) is a waiting area for unconfirmed transactions that have been broadcast to the network but have not yet been included in a block. When the Mempool is full, it indicates network congestion.

Transactions wait here until a miner selects them for inclusion, typically prioritizing those with higher transaction fees.

What Is a ‘Mempool’ in the Context of Transaction Validation?
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What Is a Mempool and How Does It Contribute to Fee Market Dynamics?
Define the “Mempool” and Its Role in a Public Blockchain’s Transaction Lifecycle