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The Omnichain Fungible Token (OFT) Standard enables fungible tokens to exist across multiple blockchains while maintaining a unified supply. The OFT standard works by debiting an amount of tokens from a sender on the source chain and crediting the same amount of tokens to a receiver on the destination chain.

OFT

The _debit function in OFT.sol burns an amount of an ERC20 token, while _credit mints ERC20 tokens on the destination chain.