Introduction

As the blockchain industry advances toward mass adoption, the performance bottlenecks of monolithic chain architectures have become increasingly apparent. According to blockchain research institutions, Ethereum mainnet's TPS has long remained between 15-30, far from meeting the high-concurrency demands of Web3 applications. Against this backdrop, modular blockchain has emerged as a next-generation technical paradigm, achieving balanced optimization of performance and security by decoupling the core functions of monolithic chains into independent modules.

ME Network, a modular blockchain multi-chain fusion network developed independently over three years, employs a three-layer decoupled design consisting of the execution layer, settlement layer, and data availability layer. This article will deeply analyze the technical principles and innovative practices of this architectural system.

Execution Layer: Optimization Solution for Computational Efficiency

The execution layer, as the top-level component of the modular architecture, undertakes the core functions of transaction execution and smart contract computation. In traditional monolithic chains, all nodes need to synchronously execute all transactions, causing severe computational redundancy. ME Network addresses this by introducing Rollup technology, which separates computational tasks from the main chain to an off-chain environment.

Specifically, the Rollup solution completes transaction computation off-chain, then submits only the state root to the settlement layer for verification, while publishing compressed transaction data to the data availability layer. This design significantly reduces the computational load on the main chain, theoretically enabling TPS performance improvements in the tens of thousands, with correspondingly substantial reductions in gas fees.

Notably, ME Hub itself is also an L1 public chain supporting smart contracts. For application scenarios that don't pursue extreme performance optimization, developers can choose to deploy contracts directly on ME Hub, operating similarly to deploying on Ethereum mainnet. However, ME Network's technical roadmap leans toward migrating heavy-duty applications to the Rollup layer to maximize the settlement layer's processing capacity.

Settlement Layer: The Core Hub of Security Consensus

The settlement layer plays the role of "final arbiter" in the modular architecture, responsible for transaction confirmation, dispute arbitration, and cross-chain bridging. This layer receives state changes submitted by the execution layer and verifies all execution results through consensus mechanisms, constructing the "soft security" protection layer of the modular system.

In standard modular designs, the settlement layer typically maintains a registry of Rollup chains and key parameters, including state snapshots, staking information, sequencer lists, and fraud proof arbitration mechanisms. However, ME Network's settlement layer functions are even more comprehensive, being endowed with three core capabilities:

1. Proof Verification and Dispute Resolution Mechanism The settlement layer provides proof publishing and external verification interfaces for Rollups. Particularly for application chains adopting Optimistic Rollup solutions, fraud proofs within the challenge period need to be verified and arbitrated on the settlement layer.

2. Cross-Chain Bridging Hub When multiple Rollups share the same settlement layer, native-level interoperability can be achieved. This eliminates the inefficient pattern of traditional cross-chain architectures that require building separate bridges for each chain pair, significantly reducing liquidity fragmentation risks.

3. Unified Liquidity Pool The settlement layer's native liquidity can be shared by all upper-layer Rollups. Since each Rollup chain can issue independent tokens, heterogeneous assets can be freely exchanged through ME Network's native cross-chain protocol MBC, forming a unified liquidity market.

From an economic model perspective, the settlement layer provides underlying consensus and security guarantees for the execution layer. Rollup chain builders don't need to deploy independent validator node networks, substantially reducing cold-start costs and long-term operational expenses.

Data Availability Layer: The Technical Foundation of Scalability

Data Availability (DA) is the key breakthrough for modular blockchains to achieve horizontal scaling. This layer's core function is to receive and store transaction data from the execution layer, ensuring that any participant can access complete historical records, thereby constructing a "hard security" guarantee system.

Unlike the execution and settlement layers, the data availability layer is completely uninvolved with smart contract execution or state computation. Its design philosophy is to enable nodes to prove the validity of specific transactions without downloading full data, through lightweight verification mechanisms.

In extreme scenarios, if the execution or settlement layer suffers an attack, users can still trace asset states using the raw data from the DA layer, achieving self-service exits. Therefore, the data availability layer constitutes a dual insurance mechanism in ME Network's security architecture.

From a performance perspective, an independent DA layer has specially optimized data distribution networks and storage architectures, avoiding the drag on main chain performance from data storage. This separation of responsibilities is the technical prerequisite for ME Network to achieve high throughput.

Conclusion

Modular blockchain represents the industry's latest exploration of the "impossible triangle." By decomposing monolithic chain functions into three specialized levels—execution, settlement, and data availability—ME Network has broken through the technical bottleneck of performance scaling while ensuring decentralization and security.

From a technical evolution perspective, this architectural design shares similar logic with the internet's evolution from monolithic applications to microservices architecture. As the Rollup ecosystem matures and DA solutions optimize, the modular paradigm is poised to become the mainstream technical route supporting blockchain mass adoption. ME Network's practice provides the industry with a referenceable engineering model, whose long-term value awaits further validation by the market and time.