BOB is a groundbreaking Hybrid Chain that uniquely combines the security and value of Bitcoin with the flexibility and innovation of Ethereum's decentralized finance (DeFi) ecosystem. It serves as the premier platform for utilizing Bitcoin in a wide array of DeFi applications, making it easier and more secure than ever to put your BTC to work.
What Is BOB Hybrid Chain?
BOB stands as a fusion between Bitcoin and Ethereum, designed to leverage the strengths of both networks. It integrates Bitcoin's unparalleled security with Ethereum's robust smart contract capabilities, creating an optimal environment for Bitcoin-based DeFi activities.
Unmatched Bitcoin Security
BOB is secured by billions of dollars in staked Bitcoin. This not only fortifies the network itself but also ensures that bridges connecting BOB to other smart contract chains are exceptionally secure.
Ethereum's Best Features for Bitcoin Users
As a member of the OP Superchain, BOB enables high-quality Ethereum decentralized applications (dApps) to seamlessly support Bitcoin DeFi. This interoperability brings Ethereum's advanced DeFi tools to the Bitcoin community.
Trustless Bitcoin Deposits
Through the use of BitVM and zero-knowledge proofs (ZK-proofs), BOB offers the most secure method for depositing Bitcoin into DeFi applications. This minimizes trust requirements and maximizes security.
Simplified Development on Bitcoin
BOB provides state-of-the-art infrastructure and tooling via the Ethereum Virtual Machine (EVM). It pairs this with Bitcoin intents, smart accounts, and other specialized BTC tools, making development straightforward and efficient.
The Four-Phase Development Roadmap
BOB's development is structured into four clear phases, each building upon the last to enhance functionality and security.
Phase 1: Bootstrapping as an Optimistic ETH Roll-up
The initial phase focuses on launching BOB as an optimistic roll-up on Ethereum, establishing the foundational layer.
Phase 2: Integrating Bitcoin Security & BitVM Bridges
This phase introduces Bitcoin's security mechanisms and deploys trust-minimized bridges utilizing BitVM technology.
Phase 3: Delivering an Optimistic Bitcoin Rollup
The core vision is realized here, with BOB becoming a full optimistic Bitcoin rollup powered by BitVM.
Phase 4: Launching ZK-Rollups
The final phase is contingent on Bitcoin network upgrades. If the necessary opcode is added, BOB will implement ZK-rollups for even greater scalability and privacy.
One-Click Bitcoin DeFi with BOB Earn
BOB Earn revolutionizes user experience by allowing you to deploy BTC into a variety of staking and DeFi products with just a single transaction. This simplicity makes accessing Bitcoin DeFi easier than ever before.
Access Cross-Chain Bitcoin Yield
Hybrid BTC vaults on BOB provide secure access to the best Bitcoin DeFi products not only on its own chain but also on Ethereum and numerous other chains. This enables users to seamlessly earn yield across the entire ecosystem.
Explore a Thriving Ecosystem with 100+ Projects
The BOB ecosystem is vibrant and rapidly expanding, featuring a wide range of projects including decentralized exchanges, wallets, infrastructure providers, and more. This growing list includes well-known names and innovative newcomers alike, all building at the intersection of Bitcoin and DeFi.
👉 Explore the full list of ecosystem projects
Build on Bitcoin with Ease Using BOB
For developers, BOB offers best-in-class EVM and Bitcoin infrastructure. It is paired with the fastest on-ramps for BTC, stablecoins, and ERC-20 tokens, simplifying the development process.
For EVM Projects Seeking Bitcoin Exposure
BOB is the simplest gateway for Ethereum-based projects to tap into the massive Bitcoin ecosystem. This includes access to the largest Web3 user base, Bitcoin Liquid Staking Tokens (LSTs), and novel assets like Runes, Ordinals, and BRC-20 tokens.
For Native Bitcoin Applications
Bitcoin-native apps can use BOB to seamlessly integrate with Ethereum's DeFi innovations. This allows them to onboard DeFi power users, connect to the best on and off-ramps, and tap into deep liquidity pools for stablecoins and other blue-chip assets.
The Ultimate Developer Playground
Developers can build at the cutting-edge intersection of Bitcoin and EVM. With full EVM opcode compatibility, they have access to state-of-the-art developer tooling, analytics, wallets, and blockchain infrastructure. BOB’s SDK acts as a one-stop shop for interacting with Bitcoin wallets and data, significantly accelerating the journey from idea to mainnet deployment.
BOB is proudly a member of the Superchain Ecosystem and is powered by the OP Stack.
Start Building on BOB Today
Deploy on BOB Mainnet
You can deploy your smart contracts on BOB Mainnet right now and participate in the BOB Fusion ecosystem growth program to accelerate your project's development.
Access Comprehensive Developer Resources
Learn how to utilize BOB's SDK to connect your smart contracts directly to Bitcoin mainnet, unlocking a new realm of possibilities.
Frequently Asked Questions
What is the primary goal of the BOB Hybrid Chain?
BOB aims to create the most secure and efficient platform for using Bitcoin in decentralized finance. It combines Bitcoin's security with Ethereum's programmable smart contracts to unlock new utility for BTC holders and builders.
How does BOB ensure the security of user's Bitcoin?
The network is secured by billions in staked Bitcoin. Furthermore, its trustless bridges and deposit mechanisms are powered by advanced cryptographic technologies like BitVM and zero-knowledge proofs, minimizing counterparty risk.
Can existing Ethereum dApps easily integrate with BOB?
Yes. Because BOB is part of the OP Superchain and supports the EVM, developers of Ethereum dApps can easily expand their services to support Bitcoin and tap into its vast user base and capital.
What makes BOB different from other Bitcoin Layer 2 solutions?
BOB's unique hybrid approach sets it apart. It doesn't just sidechain Bitcoin; it fuses its security with Ethereum's DeFi ecosystem, offering a more integrated and feature-rich environment for users and developers.
Who should consider building on the BOB network?
BOB is ideal for two main groups: EVM developers who want to access the Bitcoin ecosystem and Bitcoin developers who want to incorporate advanced DeFi features, stablecoins, and deeper liquidity into their applications.
What are the future plans for BOB's technology?
The roadmap progresses from an optimistic roll-up to a fully realized optimistic Bitcoin rollup via BitVM. The long-term goal is to implement ZK-rollups for enhanced scalability, pending upgrades to the Bitcoin network.