@ethereumjs/common / CustomChain
• ArbitrumOne = "arbitrum-one"
Arbitrum One - mainnet for Arbitrum roll-up
• OptimisticEthereum = "optimistic-ethereum"
Optimistic Ethereum - mainnet for Optimism roll-up
• OptimisticKovan = "optimistic-kovan"
Optimistic Kovan - testnet for Optimism roll-up
• PolygonMainnet = "polygon-mainnet"
Polygon (Matic) Mainnet
• PolygonMumbai = "polygon-mumbai"
Polygon (Matic) Mumbai Testnet
• xDaiChain = "x-dai-chain"
xDai EVM sidechain with a native stable token