Overview
• Bitlayer is a Bitcoin Layer-2 built on the BitVM paradigm, adding smart contracts, scalability, and interoperability without changing Bitcoin’s base protocol.
• Brings Ethereum-compatible environments to Bitcoin, allowing developers to build complex applications with Bitcoin-level security.
• Focused on enabling DeFi, NFTs, and Web3 ecosystems to tap into Bitcoin’s $1.9 trillion liquidity.
• Think of Bitcoin as the world’s most secure vault - Bitlayer turns it into a programmable supercomputer.
• Developers can write Ethereum-style smart contracts, but settlement happens with Bitcoin’s trust model.
• It’s like upgrading a classic time-tested safe with a modern AI-powered lock — security untouched, capabilities unleashed.
• For users, it means Bitcoin isn’t just for holding - it’s for trading, gaming, lending, and beyond.
• Smart Contract Layer on Bitcoin - Supports EVM (Solidity) and CairoVM, enabling both Ethereum-native and alternative runtimes.
• Optimistic + ZK Hybrid Execution - Combines off-chain computation with fraud-proof ZK verification for efficiency and trust.
• Native BTC Bridge via BitVM - Two-way, trust-minimized BTC and asset transfers without custodians.
• Proven Security - Secured by Bitcoin mining power; 30% of hashrate (Antpool, F2Pool, SpiderPool) actively supports BitVM execution.
• Cross-Chain Integration - Already connected to Base, Starknet, Arbitrum, Sonic, and Plume for seamless Bitcoin asset use.
• Architecture - Modular rollup framework for Bitcoin, batching transactions via sequencer, executing in LVM, and publishing proofs to Bitcoin L1.
• Security Model - State proofs submitted directly to Bitcoin’s main chain; inherits full Bitcoin consensus security.
• Bridge Protocol - Uses OP-DLC contracts with fraud proofs for secure interoperability.
• Ecosystem Usage - Velar is using Bitlayer to power its Bitcoin-native perpetual DEX (PerpDex).
• Evolution - Moving towards a true Bitcoin-native rollup in V2, away from traditional sidechain models.
- Core Offerings
• Layered Virtual Machine (LVM) – EVM and CairoVM support for diverse developer needs.
• Native BTC Bridge – Secure, non-custodial Bitcoin asset transfers.
• Rollup Execution Layer – Modular design for scalability and flexibility.
- Technical Edge
• Bitcoin-Level Security Without a Fork – No protocol change; inherits Bitcoin’s full security.
• Data Availability Flexibility – Choose between cost efficiency and maximum security.
• Cross-Chain Liquidity – Plug Bitcoin assets into existing DeFi ecosystems.
- Innovations & Ecosystem Momentum
• First True Bitcoin Rollup - Not a detached sidechain; fully anchored to Bitcoin.
• DeFi-Ready - Enables lending, derivatives, NFTs, and DAOs with BTC settlement.
• Adoption Growth - Strategic partnerships with cross-chain projects and DeFi builders.
Why It Matters
• For Developers - Ethereum-like development tools backed by Bitcoin’s security.
• For Users - More utility for Bitcoin without giving up decentralization.
• For Web3 - Unlocks Bitcoin’s massive liquidity for the broader decentralized economy.
