OP Stack and OP Superchain
The modular, open-source framework for building Ethereum Layer 2 chains, forming the interconnected Superchain ecosystem.
What is OP Stack and OP Superchain?
The OP Stack is a standardized toolkit for deploying optimistic rollups, including components like op-node for sequencing and Bedrock for EVM execution, enabling chains with 100ms latency. Used by over 25 chains, it supports shared bridges and governance via the Optimism Collective, which holds 19% of OP tokens for funding.
The OP Superchain connects these chains via a unified communication layer, allowing atomic cross-chain swaps and shared liquidity pools exceeding $20 billion TVL in 2025. It emphasizes Ethereum-grade security through collective sequencer sets and fault-proof systems.
Related Terms
Stablecoins on Ethereum
Digital assets pegged to fiat currencies like USD, issued on Ethereum for stable value transfer, DeFi collateral, and global payments.
Wallet and Address
A Bitcoin wallet is software or hardware that manages private keys to access digital assets, while an address is a public identifier for receiving Bitcoin payments.
Token Pair
A combination of two digital assets in a DEX liquidity pool, enabling direct swaps between them via AMM mechanisms.
Validator of PoS
Network participants staking tokens to propose and attest blocks in proof-of-stake consensus.
Treasury Bills (T-Bills)
Short-term U.S. government debt securities with maturities from 4 to 52 weeks, sold at a discount and maturing at face value.
Treasury Notes (T-Notes)
Intermediate-term U.S. government debt securities with maturities of 2, 3, 5, 7, or 10 years, paying semiannual fixed interest.