Why does Bitcoin resemble 'bricks' yet 'lie flat'?
Bitcoin is known as 'digital gold', excelling in value preservation and transfers, but lacking the Turing completeness of Ethereum, making it difficult to support complex smart contracts and DeFi applications. Bitlayer aims to solve this problem by adding programmability to Bitcoin.
How do BitVM + Rollup empower Bitcoin?
Bitlayer treats Bitcoin as the L1 layer of Rollup, relying on Bitcoin's PoW security at its core. The L2 layer supports smart contracts and transaction bundling, anchoring the state back to the main chain through zero-knowledge proofs (zk) or recursive verification, enhancing efficiency while maintaining security.
Dual-layer architecture: PoS speedup + recursive verification ensures security
Bitlayer adopts PoS consensus for rapid block production on L2, enhancing front-end responsiveness. Final settlement is done through Rollup and BitVM recursive verification back to the Bitcoin main chain, significantly reducing the need for direct interaction with the main chain, thus greatly improving efficiency.
Ecosystem layout: DeFi, dApp, and cross-chain working together
Bitlayer is compatible with EVM, facilitating the migration of Ethereum applications. It has launched DeFi projects (such as Trustin Finance, ENZO Finance, LayerBank), games, NFT marketplaces, Launchpads, and prediction markets, creating a Bitcoin DeFi ecosystem.
BTR token: multifunctional 'fuel'
BTR is Bitlayer's native token, used for staking, governance protocol parameters, and liquidity incentives. The total supply is fixed, inflation is controllable, similar to Bitcoin's DeFi 'internal fuel'.
Progress and cross-chain strategy
Bitlayer's mainnet has been running on AWS, showcasing impressive locked amount and daily trading volume, with an active community. Recently partnered with Solana to launch YBTC, backed 1:1 by Bitcoin, entering Solana DeFi, further expanding cross-chain gameplay.
Summary
Bitlayer injects smart contract and DeFi capabilities into Bitcoin through Rollup, PoS, BitVM, and zk/recursive verification. It is not just an expansion solution but a crucial step in making Bitcoin a universal chain.
