Original title: Introducing BEVM Stack: One-Click Bitcoin Layer2 Solutions

Original source: bevm-blog

Original author: bevm

Compiled by: Mars Finance, Daisy

1. Introduction

BevmStack is a modular open source blockchain technology stack designed to seamlessly integrate Bitcoin assets with Ethereum Virtual Machine (EVM) compatible smart contract capabilities. It draws inspiration from the OP Stack design philosophy and provides a comprehensive set of tools and components for building, deploying, and operating scalable blockchain networks that are tightly integrated with the Bitcoin ecosystem.

1.1 Main features

  • 🔗 Seamless Bitcoin and EVM integration

  • 🚀 High throughput and low latency transaction processing

  • 💡 Multi-Asset Fuel Mechanism

  • 🌉 Advanced cross-chain asset management

  • 🛡️ Multi-layer security architecture

  • 🧰 Rich developer tools and SDK support

2. System Architecture

The following diagram illustrates the various components of the BevmStack ecosystem and how they relate to each other:

The architecture diagram clearly shows the multi-layer structure of BevmStack, including:

  1. Bitcoin ecosystem layer: includes the Bitcoin network, BRC20 tokens, and runes.

  2. BevmStack core layer:

  • Consensus layer: Integrates Bitcoin SPV, Taproot consensus, and PoS consensus.

  • Execution layer: includes EVM and WebAssembly virtual machines.

  • Smart contract layer: consists of BevmStack contracts and Pallets.

  1. Bridging and interoperability layer: enables the transfer and operation of cross-chain assets.

  2. User interface layer: includes BevmStack wallet and block explorer. ‍

  3. Development tool layer: provides SDK, CLI tools and test network.

3. Core technology components

3.1 BevmStack Chain

BevmStack Chain is the foundation of the entire ecosystem, supporting a variety of Bitcoin assets as transaction fuel and providing an EVM-compatible smart contract environment.

3.1.1 Hybrid Consensus Mechanism

BevmStack uses an innovative hybrid consensus mechanism that combines the following technologies:

  • Bitcoin SPV (Simplified Payment Verification): Implement lightweight verification with the Bitcoin main chain to ensure the security of cross-chain operations.

  • Taproot consensus: Enhances transaction privacy and scalability, and improves overall network performance.

  • PoS (Proof of Stake) consensus: ensures network efficiency and sustainability while reducing energy consumption.

This hybrid consensus mechanism not only ensures network security and efficiency, but also achieves close integration with the Bitcoin network.

3.1.2 Dual virtual machine architecture

BevmStack Chain supports dual virtual machine architecture, which is another key aspect of its technological innovation:

  • WebAssembly (WASM) Virtual Machine: Execute system-level contracts and manage the core functions of the blockchain. WASM's high performance and cross-platform features make it an ideal environment for executing system-level contracts.

  • EVM: Provides a smart contract execution environment compatible with Ethereum and supports a rich DApp ecosystem.

This dual virtual machine architecture enables BevmStack to achieve both high performance at the system level and wide compatibility at the user level.

3.2 BevmStack Bridge

BevmStack Bridge is a decentralized cross-chain solution designed to enable seamless asset transfer and interoperability between the Bitcoin network and the BevmStack chain. It uses advanced technologies such as Taproot, Bitcoin SPV (Simplified Payment Verification), and BFT (Byzantine Fault Tolerance) consensus to achieve fully decentralized cross-chain asset transfer. The following sequence diagram illustrates its workflow:

This process ensures that assets between different chains are transferred safely and efficiently, providing users with a seamless cross-chain experience.

3.3 Smart Contract Ecosystem

The BevmStack smart contract ecosystem consists of two main parts:

  1. BevmStack Contract: EVM-compatible smart contract for managing cross-chain assets and developing DApps.

  2. BevmStack Pallets: WebAssembly-based smart contracts for managing core blockchain system functions.

This two-layer smart contract structure enables BevmStack to provide both high-performance system management and a flexible application development environment.

4. Key technology innovation

4.1 Multi-asset fuel mechanism

BevmStack supports a variety of Bitcoin assets as transaction fuel, significantly improving the utility of Bitcoin assets:

This mechanism not only enhances the flexibility of the network, but also provides new application scenarios for various assets in the Bitcoin ecosystem.

4.2 Cross-chain asset management

BevmStack uses innovative decentralized cross-chain bridge technology to achieve secure and transparent conversion of Bitcoin assets to EVM-compatible environments:

This decentralized cross-chain asset management mechanism not only enhances the liquidity and usage scenarios of Bitcoin assets, but also ensures the security and transparency of the cross-chain process. By introducing a decentralized indexing mechanism to parse and process BRC20/Runes transactions, it ensures that complex asset types can also be transferred across chains in a decentralized manner, increasing the flexibility and applicability of the entire system.

4.3 Safety precautions

BevmStack adopts a multi-layer security architecture to ensure network security:

This multi-layered security architecture ensures that the network is fully protected at every level, from the underlying protocol to the application layer contracts.

5. Developer Tools and Ecosystem

To support an active developer community, BevmStack provides a wealth of development tools:

  • Multi-language SDK support

  • Command Line Interface (CLI) Tools

  • Smart Contract Development Framework

  • Testnet and Faucet Services

These tools greatly reduce the entry barrier for developers and promote the rapid development of the BevmStack ecosystem.

6. Conclusion

BevmStack represents a significant advancement in blockchain technology, innovatively combining the security of Bitcoin with the flexibility of EVM. Its unique architectural design, multi-asset support, and cross-chain capabilities open up new possibilities for blockchain technology. As the technology matures and the ecosystem expands, BevmStack is expected to become a key force in promoting the advancement of blockchain technology and application deployment.

BevmStack combines the network effects of Bitcoin with the flexibility of smart contracts to provide a powerful infrastructure for decentralized finance (DeFi), non-fungible tokens (NFTs), and other innovative applications. As more developers and enterprises join the BevmStack ecosystem, we can reasonably expect to see more breakthrough blockchain applications and solutions emerge.