📚With increasing pressure on blockchain networks, several solutions have emerged to expand the network.
One of these solutions is roll-ups, or as they are known in Arabic as assemblies.
🤔So what is the meaning of this term? How it works? What are its types?
📚Definition:
Roll-ups are a type of network expansion through the use of a second layer, which is built on top of the first layer of the network.
It works by moving the process of processing operations outside the original network, transforming it into a single piece of data, and then sending it back to the original network.
That is, the results are published only on the original network, which helps increase the speed of transactions on the network.
Its types:
There are two main types of roll-ups: Optimistic rollups and ZK rollups
1️⃣ First: 1- Optimistic roll-ups:
(Hence its optimistic name) This method assumes the validity of the transaction in advance when it is sent to the network and is later verified by fraud proof accounts. If fraud is discovered, the transfer is canceled and a violation is imposed on the user who carried out the transaction.
2️⃣ Second: - ZK roll-ups:
Its name comes from the principle of ZKP or Zero Knowledge Proofs, because it uses zero knowledge proofs to validate conversions.
In this method, the validity of the operation is proven automatically, but without revealing any information included in the data package. This makes this method safer than the first method because the operations are always correct on the second layer and do not need to be proven on the first layer.
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