Introduction
As Bitcoin infrastructure continues to evolve, a growing number of projects are exploring how to extend its functionality beyond basic transfers and custody. One of the more technically ambitious efforts in this space is BOB (Build on Bitcoin) a hybrid layer-2 network aiming to combine Bitcoin’s security with Ethereum’s programmable ecosystem.
Built on the Optimism OP Stack and incorporating tools like BitVM and Babylon, BOB doesn’t fit neatly into existing categories. It operates like an Ethereum rollup, supports EVM smart contracts, and integrates Bitcoin as a settlement and security layer. The goal is to create a platform where both Ethereum-native...