Build on Bitcoin: Create Bridge of Bitcoin and Ethereum

1. Project introduction

Bob (Build on Bitcoin) is a mixed two -layer platform that combines Bitcoin and the flexibility of Ethereum smart contracts to support Bitina ecosystems such as Ordinals, Lightning and Nostr.Its function.

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In simple terms, BOB aims to stimulate the revival of Bitcoin construction. By supports innovation on the existing stack of Bitcoin, including Lightning Network, serial number system, and Nostr.The vision of the project is to promote the accumulation of Bitcoin for a long time through promotion of convolution technology (especially zero -knowledge convolution), and improve the economic sustainability of the agreement.BOB will also support various encrypted stories, providing innovators with a space for construction and experiments.

The core values ​​of BOB include supporting experiments and innovation, ensuring the influence of the real world, and the freedom to choose.The project is still in the early stage, but the early Alpha version has been released. In the future, it will continue to develop and experiment, including a new method of bridge without trust between Bitcoin, Ethereum and multi -chain ecosystems.

BOB’s first version of the minimum feasible product (MVP) already has no Trust BTC bridge and built -in Bitcoin light client. This can encrypt the main chain and allow the team to create the original BTC serial number and BRC exchange of Bitcoin.

2. Operation mechanism

2.1Merged mining

The combined mining technology of the BOB project is a key mechanism that allows Bitcoin miners to support BOB networks without increasing additional costs.The main advantage of this technology is that it can use existing Bitcoin mining resources while enhancing the security of the BOB chain.

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The following is a more detailed explanation of this technology:

2.1.1Principles and operation methods

The merger mining allows two different blockchains -in this case is Bitcoin and BOB -share the same workingload certificate (POW) algorithm.In actual operation, the miners can also dig the BOB chain block while digging Bitcoin.This is implemented by the small part of the BOB block as a small part of the Bitcoin block (usually additional data fields).

2.1.2Technical details

In the BOB’s combined mining protocol “Optimine”, the miner generates a proof of work, which proves that it also meets the mining difficulty requirements of the two networks.Miners need to find a hash value that meets the difficulty of Bitcoin network. At the same time, this hash value also needs to meet the difficulty requirements of the BOB network, or it is easier to meet.When the Bitcoin block is dug out, there is also an effective BOB block, so this BOB block will also be considered dug out.

2.1.3Security

By merging mining, BOB can use the extensive miner foundation and high security of the Bitcoin network.Because the verification of the BOB block is performed at the same time through the Bitcoin POW mechanism, any behavior that trys to attack the BOB network needs to attack the Bitcoin network at the same time, which is very challenging in economics and technology.

2.1.4Efficiency and motivation

This technology allows miners to use the same calculation work to provide security support for the two networks without additional energy consumption.This not only improves energy efficiency, but also reduces economic costs participating in multiple networks.

Combined mining provides additional incentives for miners, because they can get additional mining rewards on the BOB chain without sacrificing Bitcoin mining returns.This mechanism encourages more miners to participate in the security maintenance of the BOB network, and also enhances the overall security and decentralization of the network.

2.2EVM compatibility

The Ethereum virtual machine (EVM) compatibility of the BOB project is one of its core features that enable it to support running smart contracts and developing complex decentralized applications (DAPPS).This function has greatly extended the ability of Bitcoin to transform it from a platform that is mainly used for value storage and simple transactions to a richer and diverse application platform.

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The following is a more detailed introduction of Bob EVM compatibility:

2.2.1Basic concept

EVM is the operating environment of all smart contracts on Ethereum.It is a completely isolated virtual environment, which means that the code running in EVM can be executed without any external impact.This compatibility allows BOB to use the existing Ethereum tools and infrastructure, such as smart contract programming language Solidity, as well as development tools HardHat and Remix, as well as blockScout and the graph for data visualization.

2.2.2Technical implementation

The BOB implementation of EVM compatibility is to integrate EVM in its L2 solution.This means that any DAPPS and smart contracts designed by Ethereum can theoretically run without modifying on the BOB platform.In this way, BOB can use the maturity and extensive developer community of the Ethereum ecosystem, while bringing the advantages of Bitcoin’s security.

2.2.3Development and deployment smart contract

Developers can use standard Ethereum development tools to create, test and deploy smart contracts to BOB networks.These contracts can interact with users through standard Ethereum wallets such as Metamask.In addition, BOB supports abstractness to simplify user interaction through Metatractions and accounts, allowing users to use BTC or other ERC-20s to pay transaction fees.

2.2.4Cross -chain function

EVM compatibility also enables BOB to support the interoperability of Ethereum and other EVM -based chains.For example, users can use the existing Ethereum infrastructure and market to trade assets created on the BOB, or migrate their assets from Ethereum to BOB.

2.2.5Advantage and challenge

BOB has brought many advantages through EVM compatibility, including the support of plug -and -play smart contracts, more widely visited developer tools and community resources, and a richer DAPP ecosystem.However, this also brings challenges, especially in ensuring the safety and efficiency of seamless integration with the Bitcoin main chain.

2.3Cross -chain function

The cross -chain function of the BOB project is one of its core features, which greatly enhances the interoperability between Bitcoin and Ethereum ecosystems.By achieving cross -chain technology, BOB can not only support seamless transactions between Bitcoin and Ethereum, but also linked to other EVM -based networks.

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The following is a more detailed introduction to the BOB cross -chain function:

2.3.1Cross -chain bridge

BOB realizes one or more cross-chain bridges, allowing the transfer and interaction between Bitcoin and other blockchain assets (such as ERC-20 tokens on Ethereum).These bridges use smart contracts to lock assets on one chain and issue corresponding tokens on another chain.For example, users can lock Bitcoin on the BOB platform and obtain equal amounts of packaging Bitcoin (WBTC) on the Ethereum network.

2.3.2Two -way light client BTC bridge

BOB particularly emphasizes the development of its two -way light client BTC bridge. This is a high -end cross -chain solution that supports direct interaction between Bitcoin and Ethereum ecosystems.This bridge uses light client technology to verify Bitcoin transactions on EVM, which allows direct use and management of Bitcoin without centralized hosting services.

2.3.3Metatractions and account abstraction

BOB enhances its cross-chain function by introducing meta-transactions and account abstraction.Metal trading allows users to pay transaction fees without having to have native network tokens (such as ETH) when conducting transactions.This means that Bitcoin users can use BTC to pay the transaction costs on the Ethereum network, increasing the convenience and accessibility of cross -chain operations.

2.3.4BTC light client and smart contract interoperability

BOB uses BTC light client technology to allow smart contracts to access and process Bitcoin blocks and transaction data.This allows the smart contracts created on the BOB platform to interact directly with Bitcoin, and perform operations such as P2P exchange, serial number auction or computing power token.

2.3.5Rust and ZK-Snarks

BOB’s cross-chain function also benefits from its support for Rust programming language and zero knowledge proof (especially ZK-SNARKS).This allows BOB to perform chain calculations, and at the same time verify the correctness of these calculations on the chain, providing a safe and credible verification mechanism for complex cross -chain operations.

2.3.6Security and efficiency

When designing cross -chain functions, BOB pays special attention to security and efficiency.To minimize trust and risks in cross -chain transactions by using advanced encrypted technology and carefully designed protocols.In addition, BOB’s cross -chain bridge aims to reduce delay and transaction costs, and users can move assets quickly and economically.

3. Ecological system

The Fusion Points and Airdrops are the key mechanisms for incentives and rewarding users’ participation in their ecosystems.These functions not only encourage the active participation of the community, but also increase the liquidity and user base of the platform.

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3.1Fusion points

The fusion point is a kind of incentive measures in the BOB network, which aims to reward users’ contribution and participation to the network.Users can earn a fusion point in various ways, such as:

1. Asset bridge: Users can get fusion points to the BOB platform through the bridge receiving white list assets (such as WBTC and TBTC, etc.).These operations usually have high multiplication, which means that participants can get more points through active transactions.

2. TVL contribution: The user locks assets in the decentralized application (DAPPS) that supports whitening assets, and you can earn the fusion point according to the lock amount and time.

3. Active DAPP interaction: interact with specific white list DAPPS. If you participate in voting, pledge or other forms of interaction, users can also get fusion points.

4. Recommended plan: Users can also get fusion points by recommending new users to join the BOB platform. The more recommended, the higher the potential rewards.

3.2Airdrop (AirDrop)

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In the BOB project, the airdropping is usually combined with the fusion point activity. The method includes:

1. Fusion point conversion: The fusion point accumulated by users can be converted into tokens of the BOB project. These tokens can be traded on various trading platforms, or for further operation and investment on the platform.

2. Community activity rewards: users who participate in specific community activities or complete specific tasks may directly get airdrops as rewards.

3. Contributions: users who have made significant contributions to the BOB ecosystem, such as developers or active community members, may also get airdrops to recognize their contributions.

4. Linemap

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The roadmap of the BOB project elaborates its multi -stage deployment plan, which mainly includes the following stages:

Phase 0: Public Test Network

This is the initial stage of the BOB project, which is mainly concentrated in the deployment of the test network and the verification of basic functions.The purpose of this stage is to ensure that the system’s infrastructure is stable and ready to implement the next stage.

Phase 1: Bootstrapping Bob -Optimistic Eth Rollup

At this stage, BOB will achieve an optimistic Ethereum Rollup solution.This means that all transactions and status conversion will be initially verified and settled in the L1 of Ethereum, but it has the potential to convert to a more efficient system in the future.

Phase 2: Inherit the security of Bitcoin through the new combined mining protocol

At this stage, the POW security of Bitcoin will be integrated into the BOB project by merging mining technology.This can ensure that the BOB network can maintain high transaction processing efficiency while inheriting the high security standards of Bitcoin.

Phase 3: Upgrade from Optimistic Rollup to ZK verification

ZK-Rollups provides higher efficiency and security than Optimistic Rollups.The goal of this stage is to verify transactions and status changes by using zero knowledge proof, reduce the trust needs of network verifications, and greatly improve transaction throughput and speed.

Phase 4: Through BITVM, one -time signature, and ZK proof to achieve BTC pledge sorter

At this stage, more advanced functions will be introduced, such as Bitcoin virtual machines (BITVM), one -time signature mechanism, and ZK to prove that these are to further enhance the security and decentralization of cross -chain interaction.

Phase 5: Multi-ZK-Rollup (connecting ETH and BTC at the same time)

The final stage aims to create a multi-ZK-Rollup connection with Bitcoin and Ethereum chain at the same time, which will greatly enhance the flexibility and efficiency of cross-chain operations and make BOB a truly multi-chain platform.

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Such a roadmap shows the ambitions and complexity of the BOB project, which aims to solve existing existing scalability and interoperability problems by gradually introducing advanced blockchain technology.The success of each stage needs to overcome major technical challenges, but if it is successful, it will greatly promote the development of the entire blockchain industry, especially in improving the function of Bitcoin and the integration with other blockchain systems.

5. Team/financing situation

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Dominik Harz is the co -founder and CTO of Interlay and Bob.He is a doctor of computer science at the Empire Institute of Technology in London and has previously served as a research assistant to the school.

Alexei Zamyatin is the co -founder of Interlay and Bob, and was previously a researcher SBA Research.He is a doctoral student at the Cryptocurrency Research and Engineering Center of the Empire Institute of Technology in London, England. His research focuses on blockchain security and interoperability.

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Recently, BOB has received led by Castle Island Ventures10 million US dollars seed round financingEssenceOther participants include MEChanism Ventures, Bankless Ventures, CMS Ventures and Utxo Management, as well as angel investors such as Dan Held and BRC-20 token standards.

The financing supports the goal of BOB, that is, through the enable chain computing and the verification on the chain (similar to the optimistic summary of Ethereum), enhance the Bitcoin infrastructure without affecting performance, thereby promoting the scalable on Bitcoin.Smart contract application.

6. Project evaluation

6.1Track analysis

The BOB project is positioned in the second -level solution of Bitcoin and the field of DEFI (decentralized finance), especially in promoting the interoperability between Bitcoin and Ethereum ecosystems.By combining Bitcoin’s security and Ethereum’s smart contract function, BOB aims to expand the functionality of Bitcoin and enable it to support complex financial applications. This cannot be realized on the traditional bitcoin network.The following is the main track analysis of the BOB project and some similar items:

6.1.1BOB project’s channel

1. Bitcoin No. 2 solution: BOB provides higher trading speed and lower trading costs than the native Bitcoin network by achieving mining and smart contracts, such as merging mining and smart contracts, while maintaining core security attributes.

2. Cross -chain technology: By providing compatibility with EVM and establishing a cross -chain bridge, BOB makes it possible for Bitcoin and other blockchain assets (especially Ethereum and its tokens).Bitcoin’s application potential in DEFI and other fields.

3. Smart Contract Platform: BOB supports EVM, allowing developers to deploy and execute smart contracts on Bitcoin. This was originally a significant characteristic of Ethereum. Now it can be implemented in the Bitcoin ecosystem through platforms like BOB.

6.1.2Similar project

1. RSK (RootStock): RSK is the first project to introduce Ethereum smart contracts into Bitcoin.It is a Bitcoin side chain that allows Bitcoin network to directly support smart contracts and more complex trading types.

2. Lightning Network: Although it is mainly used for payment and micro -transactions, Lightning Network is another two -layer extension solution for Bitcoin to achieve high -speed and low -cost transactions by establishing a payment channel network.

3. Liquid network: liquid developed by Blockstream is a Bitcoin side chain, which is mainly used to accelerate Bitcoin transactions and issue other types of digital assets.

4. Stacks: Previously, Blockstack, Stacks aims to bring smart contracts and decentralized applications to the Bitcoin network, through its unique Clarity contract language and Proof of Transfer (POX) consensus mechanism.

6.2Project advantage

1. Security

BOB uses Bitcoin’s workload certificate (POW) security model to provide security guarantee at the same level as Bitcoin by merging mining technology.This means that any act of trying to attack BOB must also be enough to attack Bitcoin itself, which is almost inevitable in actual operation, because Bitcoin’s network is currently the largest and safest POW network.

2. DEFI and smart contract applications

BOB not only supports basic Bitcoin transactions, but also allows complex financial instruments and services (such as loan platforms, automated markets as city merchants (AMM), and stablecoin) through smart contracts.This expands the application scope of Bitcoin, making it a more comprehensive financial solution

3. Innovative financing and community incentive mechanism

The BOB project encourages community participation and network growth through integration points and airdrop mechanisms.These incentive measures not only increase the participation of users, but also help maintain and develop BOB ecosystems.

4. Open and scalable architecture

BOB’s architecture design aims to support future upgrades and expansion, including supporting new encrypted prices and technologies, such as zero -knowledge proof and chain computing solution.This ensures that BOB can adapt to future market demand and technological development.

6.3Lack of projects

1. complexity and difficulty adoption

Although BOB simplifies the user experience through familiar interfaces such as Metamask, its underlying technology, especially the complexity involving smart contracts and cross -chain interactions, may challenge new users.This complexity may limit the participation of non -technical users, thereby affecting the widely adopted by the project.

2. Rely on external factors

The success of BOB to a large extent relies on its compatibility and interoperability of Ethereum and other blockchain technology.Any major changes or inconsistent updates on these external platforms may adversely affect BOB.

3. The difficulty of project execution and technology implementation

The technical function and ecosystem described by BOB requires high -level technical expertise and strict project management.Any mistake or delay in the implementation process may affect the overall success and market acceptance of the project.

7. Conclusion

All in all, as a innovative Bitcoin second -layer solution, the BOB project has greatly expanded the application field of Bitcoin by integrating the security of Bitcoin and the smart contract function of Ethereum, providing cross -chain functions and DEFI applications.possibility.It inspires community participation through mechanisms such as integration points and airdrops, and strives to build an active and supportive ecosystem.

Despite many challenges such as technical complexity, security challenges and fierce market competition, the innovative concept and function of the BOB project expand the future application of Bitcoin to provide new perspective and possibilities.With the continuous progress of blockchain technology and the gradual maturity of the market, the potential of BOB projects has the potential to play a key role in promoting Bitcoin and the entire cryptocurrency ecology into the new stage.