Optimism Sepolia Permit Signature Checker

What Is Optimism Sepolia?

Optimism Sepolia is a testnet for Optimism. Optimism is a Layer 2 scaling solution for Ethereum. It uses optimistic rollups to scale Ethereum by executing transactions on Optimism and posting batches of transaction data to Ethereum. Optimism is one of the most popular Layer 2's for Ethereum. Besides the main Optimism network, Optimism also develops a technology stack that can be used by other L2's such as the Base network by Coinbase. The native token of Optimism Sepolia is ETH. Learn more about Optimism Sepolia on its website.

What Are Permit Signatures?

Permit Signatures are used to grant token approvals without sending a transaction. Because these signatures are not stored on the blockchain, there is no way for Revoke.cash to know if you signed them. This page lists your tokens that support offchain Permit signatures.

Only if you know that you signed a Permit signature on a scam website, you need to cancel the potential signatures on this page, otherwise you are wasting transaction fees. When you cancel potential signatures for a token, they will remain in the list but cannot be cancelled again for some time.