Restaking Driven Based Rollup: Exploring More Efficient Ethereum Scaling Solutions

A certain project is utilizing Restaking technology to build a more efficient Based Rollup solution, aimed at achieving decentralized ordering and optimizing inter-chain liquidity interactions. This Based Rollup solution will create a different landscape in the Ethereum ecosystem compared to mainstream Rollups.

The main components of the project include:

1. Ethereum restaking business based on Eigenlayer
2. Based Rollup optimization scheme introducing pre-confirmation technology
3. AVS system for building a highly synchronized application chain ecosystem to reduce liquidity fragmentation.

The differences between Based Rollup and mainstream Rollup solutions mainly lie in the trade-offs of decentralization level, efficiency, and benefit distribution, in order to adapt to the needs of different types of application scenarios.

Overview of Rollup Technology

Rollup is a scaling technology designed to enhance the transaction processing capacity of blockchains. It achieves this by processing a large number of transactions off-chain and then submitting the results to the mainnet for verification, thus reducing the burden on the mainnet while maintaining data security. Rollup is mainly divided into two categories:

• Optimistic Rollup: Default transaction correctness is assumed, verification occurs only when there is a dispute, faster speed but with a challenge period.
• ZK Rollup: Uses zero-knowledge proofs to ensure transaction correctness, safer but with high technical complexity.

The core idea of Rollup is "massive off-chain work, on-chain result submission" to improve blockchain processing speed and reduce fees. The process can be divided into two parts: batch packaging ( to increase transaction volume ) and transaction confirmation ( to enhance confirmation speed ).

Based Rollup Concept

The Based Rollup was proposed by a researcher from the Ethereum Foundation in March 2023, primarily targeting the role of the sorter for transaction ordering and packaging from L2 to L1. Existing centralized sorter solutions have not posed significant problems in the early stages of industry development, but as the on-chain capital increases and infrastructure matures, decentralized sorters will become an inevitable trend.

Currently, there are two main solutions:

1. Decentralized Sorter Based on L2
2. Move the sorting function to the Based Rollup of L1

Based Rollup shifts the responsibility of transaction ordering from L2 to L1, with Ethereum validators responsible for transaction ordering. This design makes full use of existing Ethereum node resources, mitigating centralization risks, but also faces the challenge of performance being limited by the mainnet block time.

Analysis of Based Rollup Optimization Solutions

To break through performance limitations, a certain project proposed to introduce a "pre-confirmation" mechanism to optimize Based Rollup. This mechanism has the following characteristics:

1. Guaranteed by Ethereum validators: Validators make a commitment to the pending Rollup transactions before packaging the block.
2. Penalty mechanism: If a validator fails to fulfill the pre-confirmation commitment, they will face penalties.

This pre-confirmation mechanism bypasses the issue of Based Rollup being restricted by the mainnet block time, allowing Ethereum mainnet nodes to take on additional work to ensure transaction confirmation efficiency ( approximately 100ms ).

Although pre-confirmation has increased the transaction confirmation speed, Rollup still needs to batch transactions through layer two or off-chain and then send the packaged transactions to the mainnet for confirmation.

Implementation Plan Based on AVS

To implement the pre-confirmation mechanism and corresponding penalty mechanism, the project proposes the AVS solution based on EigenLayer. This solution utilizes Ethereum's "Restaking" to package the pre-confirmation service into AVS service. Any validator who restakes on EigenLayer can participate in providing pre-confirmation services and design corresponding penalty mechanisms in AVS.

This solution contributes to Based Rollup, making the implementation of "pre-confirmation" more feasible.

Core Values

Using the AVS of this project to build an application chain will become an upgrade solution for Based Rollup, with the following advantages compared to other Rollups:

• Decentralized sorting based on L1
• Integrated pre-confirmation technology to enhance transaction confirmation speed
• Create profits for Restaking
• Achieve synchronous composability

Among them, synchronous composability is the core feature for solving the fragmentation problem. Due to the decentralized ordering based on L1, Ethereum mainnet nodes act as "global sequencers," allowing different Rollups to interact within the same block without the need for cross-chain bridges. This provides users with a smooth experience similar to a single chain, effectively reducing the issue of liquidity fragmentation.

Summary

The Based Rollup solution is more like a "subordinate" Rollup of the Ethereum mainnet, directly managed by Ethereum for scheduling and communication, adhering to a fair system, which reduces the risks of information transmission errors and intentional malfeasance.

In contrast, mainstream Optimistic Rollups are more like "delegated" Rollups of Ethereum, allowing for more autonomy and innovation, but also requiring an additional layer of chain abstraction to coordinate interactions between different Rollups.

The point of contention between these two proposals is whether the Rollup should return value to Ethereum or operate autonomously. The former has greater security advantages and natural combinability, while the latter allows operators to capture more benefits but requires more costs to ensure decentralized security.

The inclusiveness of blockchain determines that these two solutions will coexist, reflecting different trade-offs in terms of decentralization, efficiency, and distribution of benefits. This exploration will continue, and through continuous technological adjustments, developers hope to create a new future for blockchain.