SUDT stands for “Simple User Defined Token" and is Nervos Network's first token standard. It is similar to Ethereum's ERC20 standard, which provides a way for dApp developers to create custom fungible tokens on the Nervos Network blockchain.  

SUDT tokens are created on the Nervos CKB layer 1 blockchain to produce both native assets as well as wrapped from other blockchain token standards using Force Bridge.

Well-known SUDT tokens can also be used on Godwoken layer 2 using an ERC20 proxy contract, which allows Ethereum EVM compatible smart contracts running on Godwoken to interact with SUDT tokens as if they were ERC20 tokens.

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