What is Ethereum scroll? How to operate Ethereum scroll?

Ethereum Scroll is a layer 2 scaling solution designed to improve the scalability of the Ethereum network through sharding and ZK-Rollup technologies. It combines these two technologies to process transactions in parallel and verify efficiently, thereby significantly improving network throughput and reducing transaction fees. Scroll is designed to be a compatible extension layer for Ethereum Virtual Machines (EVMs), allowing users to process transactions quickly and economically.

What is Ethereum Scroll?

1. Introduction to Ethereum Scroll

Ethereum Scroll is a layer 2 scaling solution designed to be used through sharding and ZK-Rollup technology significantly improves the scalability of the Ethereum network. Developed by the Scroll team, it is an open source project designed to become a fully compatible extension layer for Ethereum Virtual Machines (EVMs).

Ethereum Scroll's goal is to increase transaction volume and reduce transaction fees on the Ethereum network, allowing users to process transactions quickly and economically. By implementing sharding and ZK-Rollup technology, Scroll aims to increase Ethereum’s throughput and efficiency while maintaining decentralization and security.

2. Shashing

Shashing involves dividing the Ethereum network into smaller parts or shards. Each shard acts as a parallel blockchain that processes transactions belonging to the shard. This approach reduces pressure on a single node by distributing processing workloads over multiple shards, thereby increasing the overall throughput of the network.

3. ZK-Rollup
ZK-Rollup is an efficient and secure layer 2 expansion technology used to bundle large amounts of transactions into Single transaction and validate on-chain. These transactions are compressed and generate a concise proof that can be verified quickly and inexpensively, significantly reducing transaction time and fees.

How to combine sharding and ZK-Rollup
4. Ethereum Scroll uniquely combines sharding and ZK-Rollup technology, To achieve better scalability. Sharding allows the network to parallelize transactions, while ZK-Rollup compresses transactions and efficiently verifies them. This combination approach allows Scroll to significantly increase network throughput while keeping transaction fees low.



How to operate Ethereum Scroll?

1. Transaction Submission
To use Ethereum Scroll, the user needs to submit the transaction to a shard on the Scroll chain. Each shard is maintained by a collection of validators that are responsible for processing and validating transactions on the shard.
2. Batch processing
The validator on the Scroll chain processes the received transactions in batches and creates a batch of transactions. This batch is then sent to the ZK-Rollup proof generator.
3. ZK-Rollup Proof Generation
ZK-Rollup Proof Generator uses zero-knowledge proof technology to create concise proofs for batch transactions. This proof contains a compressed representation of all details of the transaction, but does not disclose any confidential information.
4. Proof Verification
This proof is sent back to the verifier on the Scroll chain. The validator uses the same zero-knowledge proof technology to verify the validity of the proof, thus confirming the accuracy and completeness of the bulk transaction.
Batch transaction execution
5. After the verification is successful, the validator publishes the batch transaction to the Scroll chain for execution. This step will modify the status on the Scroll chain to reflect the impact of the executed transaction.
6. Ethereum Mainnet Settlement
Once batch transactions are executed on the Scroll chain, they will be sent to the Ethereum Mainnet during periodic settlement. This settlement process ensures that the Ethereum mainnet has final certainty about the transaction status and order of the Scroll chain.

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