b9_1155what is permit signature?
a free, off-chain signature that works like an approval once someone submits it (on tokens and apps that support it).
it costs the signer nothing, which is the point for scammers: a popup that says "sign" can do the same job as one that says "approve". it does not show up in approval lists until it is used.
related words
- revoke cancelling a wallet approval on the blockchain: setting it back to zero, or for NFTs, switching it off.
- nonce a counter that makes each signature or transaction usable only once.
- wallet approval a permission that lets a smart contract or address move a set amount of one of your tokens later, without asking again.
part of the topic scams: free articles, more words and the guide.
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