Block Aggregation Layer refers to a component in blockchain architecture that consolidates multiple transactions or blocks before they are added to the main blockchain. This process helps enhance efficiency and scalability.

By aggregating transactions, this layer reduces the amount of data that needs to be processed by the main network. It allows for batching separate transactions into a single block, which can lead to lower fees and faster confirmations.

This approach is especially useful in networks that experience high transaction volumes. It minimizes congestion and ensures that the system remains responsive, even during peak usage times.

The Block Aggregation Layer thus plays a critical role in maintaining the performance and throughput of blockchain networks, promoting a better user experience.

Moreover, it can optimize storage requirements, as aggregated blocks can be more space-efficient. Overall, this layer contributes to the sustainability of blockchain ecosystems by balancing load and improving speed without compromising security.