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Definition: OP Stack


(OPtimism Stack) An open source modular approach for building blockchains. Pronounced "O-P Stack," it enables proprietary elements of various chains to be combined to create customized solutions for Ethereum. According to the OP Stack website, OP Stack is not just for Optimistic Layer 2 rollups. The goal is a group of highly integrated chains that form a Superchain. Optimism Bedrock is the first planned implementation of OP Stack. See Optimism.