Summary B² Network Overview Zero-Knowledge Proof Verification Commitment for ZK-Rollup on Bitcoin Tech Architecture Rollup Layer DA Layer Decentralized Storage B² Nodes B² Inscription B² Commitment Bitcoin Network For Users Connecting to B² Testnet Join B² Network Odyssey Get test BTC Bridge to B² Testnet Transfer BlockHeadz NFT For Developers Write a contract Deploy a contract with Hardhat Press-Kit