How does BEVM achieve compatibility with OP Stack and innovative solutions using WBTC as Gas?

After more than ten years of continuous development, blockchain technology has also entered a period of technological explosion. As a team that has been deeply involved in the Bitcoin ecosystem for more than 7 years, BEVM has maintained outstanding innovation capabilities and forward-looking thinking in this field.

In recent internal technical discussions and practices, the BEVM team plans to inherit the security of the Ethereum network based on the OP Stack of the OPtimism team and the Madara module of Starkware to achieve seamless connection between BEVM and the Ethereum network. At present, the BEVM team is developing an Ethereum L2 serving BEVM based on the OP Stack. The L2 will serve as an asset relay between the Ethereum network and the BEVM network to ensure that mainstream assets on Ethereum (ETH/USDC/USDT) can be safely bridged to BEVM.

Through the above method, not only seamless connection with Ethereum is achieved, but also the zero-knowledge proof problem of the Bitcoin network is solved by optimizing the ZK-STARK and OP_CAT schemes, thereby optimizing the existing Taproot Consensus scheme. This upgrade not only improves the security, privacy protection and scalability of the network, but also provides new possibilities for the development of decentralized finance (DeFi). This article will elaborate on the core content of this technical upgrade and its future potential.

How to expand the Bitcoin and Ethereum ecosystem in a decentralized manner?

OP Stack, as an open source component, allows any developer to use Optimistic rollups to build their own Layer2 blockchain on top of Ethereum. The BEVM team successfully implemented the BEVM-Stack test network that is compatible with OP Stack and uses WBTC (Wrapped Bitcoin) as Gas through internal verification, thereby achieving a more decentralized connection to the Ethereum ecosystem.

As an ERC-20 token that anchors Bitcoin to the Ethereum blockchain, WBTC locks Bitcoin through smart contracts and mints an equivalent amount of WBTC on Ethereum. This design allows users to trade and operate on the Ethereum network using the value of Bitcoin, and also allows Bitcoin to participate in DeFi and other applications within the Ethereum ecosystem while maintaining the value and security of Bitcoin.

The introduction of WBTC can bring two major benefits to BEVM:

· Improve overall liquidity: By introducing WBTC, all transactions and operations in the BEVM network can be paid with Bitcoin, which not only improves Bitcoin's liquidity, but also makes it easier for Bitcoin holders to participate in various activities on the BEVM network.

· Improve user stickiness and experience: Using WBTC as the gas fee makes Bitcoin users more willing to join and use the BEVM network, simplifies the operation process, improves the user experience, and thus increases user stickiness and activity.

At the same time, the BEVM team has also conducted in-depth research on ZK Rollup and plans to replace the existing frontier pallet of BEVM with the Madara module. After implementation, BEVM itself can be regarded as ETH L2, and its security depends not only on Bitcoin but also on Ethereum.

The BEVM team also plans to integrate Madara into the existing BEVM-Stack. As a Layer2 expansion technology, ZK Rollup reduces the on-chain data load by aggregating a large amount of transaction data for off-chain processing, thereby improving transaction speed and efficiency.

Through the figure below, we can intuitively see the implementation logic of this technical solution:

1. First, decentralized expansion of Bitcoin is carried out through Taproot Concensus to become the Layer2 of Bitcoin;

2. Then decentralized expansion of Ethereum is carried out through Op Rollup to achieve decentralized connection with Ethereum, so that Bitcoin and Ethereum can realize decentralized interoperability and integration;

3. Decentralized expansion and connection of Ethereum is carried out through Zk Rollup, so that Bitcoin and Ethereum can realize decentralized interoperability and integration.

Therefore, by being compatible with Op Stack, BEVM can not only achieve seamless connection with Ethereum, but also enhance the scalability and interoperability of the network through ZK Rollup and Op Rollup, which will make the operation between Bitcoin and Ethereum more convenient and efficient, and can bring a better experience to users.

In addition, the BEVM team also noticed that the Bitcoin network has the probability of supporting OP_CAT in the future upgrade of the new BIP. The team has explored ZK-STARK technology. ZK-STARK is an advanced zero-knowledge proof technology that can not only verify the correctness of data, but also protect user privacy without exposing transaction details. BEVM's Taproot Concensus is also integrating OP_CAT and ZK-STARK in the test network. Through the integration of the two, BEVM can greatly enhance data privacy and transaction security.

For BEVM, the existing Taproot Consensus solution includes SPV, BFT PoS and Taproot (Schnorr and MAST) components, as shown in the figure below:

In the new technical architecture, BEVM introduces OP_CAT ZK-STARK to verify and settle all BEVM transactions. After implementation, BEVM transactions can be settled in Bitcoin and Ethereum at the same time. And enhance the security and privacy protection of the network.

Therefore, through improvements, the original solution will be upgraded to the industry’s first SPV + BFT PoS + Taproot (Schnorr) + OP_CAT + ZK-STARK. Specifically, the core components of the new solution include:

· SPV (Simple Payment Verification): Simple payment verification, used to verify users’ cross-chain transactions from the Bitcoin network to BEVM, ensuring fast and efficient transaction confirmation;

· BFT PoS (Byzantine Fault Tolerance Proof of Stake): This consensus requires that at least 2/3 of the verification nodes are working properly. Enhanced the consensus mechanism of the network, improving overall security and efficiency; · Taproot (Schnorr): used to achieve decentralized Bitcoin custody, improving the privacy and efficiency of transactions; · OP_CAT and ZK-STARK: used to verify transactions on the second layer through zero-knowledge proof technology and optimized smart contract execution. The integration of these technologies can not only improve the privacy protection and scalability of the network, but also provide new solutions for the interoperability of Bitcoin and Ethereum, and is expected to achieve a more decentralized Bitcoin Layer2 solution. If this technical solution is successfully implemented, it will help Taproot Consensus to reach a new level and will also usher in a comprehensive outbreak of the Bitcoin ecosystem.

It can be seen that the implementation of part of the above plan confirms the earlier proposal of the BEVM team, "BEVM-Stack will integrate multiple blockchain technologies such as ZK-STARK scalability, XCMP, and full-chain message protocols such as LayerZero and Wormhole, so as to achieve seamless connection between Bitcoin and other blockchain technologies." Therefore, in addition to focusing on the connection between Bitcoin and Ethereum, BEVM is also exploring more cross-chain solutions through BEVM-Stack. This multi-chain interoperability will bring more possibilities to the blockchain ecosystem and promote the coordinated development of different blockchains.

What is the significance of BEVM compatibility with Op Stack?

The development of blockchain technology itself is moving forward around the expansion of the Bitcoin network, and there are two directions to expand the Bitcoin network: one is a high-performance smart contract platform, focusing on improving performance and user experience, and the industry development narrative is called a high-performance public chain; the other is how to achieve Bitcoin expansion in a decentralized manner, and the industry calls this type of development narrative Layer2. But in the end, everyone found that the two actually have different paths to the same end, and can be effectively combined to serve Bitcoin, and truly solve the scalability problem of Bitcoin, allowing all blockchain technologies to originate from Bitcoin and return to Bitcoin.

BEVM-Stack has completed the decentralized expansion of Bitcoin to the EVM platform through Taproot Concensus, allowing the Layer2 network to use Bitcoin as Gas in a decentralized manner to enjoy the benefits of smart contracts brought by EVM. Facing the large number of on-chain users and TVL accumulated by Ethereum over the years, the EVM-compatible BEVM-Stack can also be easily compatible with OP Rollup and ZK Rollup, thereby realizing decentralized communication with Ethereum. Based on this, the BEVM development team simultaneously studied the technical leading solutions of OP Rollup/ZK Rollup, thereby realizing the above-mentioned decentralized expansion of the Bitcoin and Ethereum ecosystems.

Through this technical solution, not only can some new narratives be brought to BEVM, but also more possibilities can be brought to the Bitcoin and Ethereum ecosystems.

First, by introducing OP Rollup and ZK Rollup, BEVM will further enrich the functions of BEVM-Stack and promote its integration with the Ethereum ecosystem. The introduction of WBTC as the Gas fee can also bring more vitality and power to the development of the BEVM ecosystem, thereby truly realizing the connection between Bitcoin and Ethereum ecosystems.

Secondly, the optimized Taproot Consensus solution, by introducing OP_CAT and ZK-STARK, can not only improve the scalability and efficiency of the network, but also further reduce transaction costs. This technical advantage will also attract more developers and users, promote the rapid development of the BEVM ecosystem, and provide a new solution for Bitcoin scalability. At the same time, the integration of these technologies realizes the privacy protection of transaction data and ensures the authenticity and validity of transactions.

Finally, BEVM will further promote the development of DeFi through seamless connection with Ethereum and multi-chain interoperability. Users can conduct more efficient and secure decentralized financial transactions on the BEVM network and enjoy more financial services and innovative applications. By being compatible with multiple blockchain technologies and platforms, BEVM will attract more ecological projects and partners to jointly promote the development and application of the Bitcoin ecosystem.

Therefore, by integrating OP Rollup and ZK Rollup, introducing WBTC as the Gas fee, and optimizing the Taproot Consensus solution with the help of OP_CAT and ZK-STARK, the security, privacy protection and scalability of the BEVM network will be greatly improved. In the future, with the continuous optimization of technology and the continuous expansion of the ecosystem, BEVM is expected to release more vitality in the Bitcoin ecosystem and bring more breakthrough growth opportunities to the industry.

At present, BEVM has officially released the BEVM-Stack test network, which is compatible with OP Stack and uses WBTC as Gas. Interested users may wish to experience it and feel the surprise brought by the connection between Bitcoin and Ethereum ecosystems. For specific test steps, please move to this link to view: https://bevm-blog.webflow.io/post/bevm-stack-testnet-tutorial-campaign-officially-launched

All users who participate in the testing phase will receive special rewards for their contributions to the development and progress of BEVM Stack, including OP tokens and BEVM tokens airdrops.

This article is from a contribution and does not represent the views of BlockBeats

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