Sign In With Ethereum (SIWE)
A specification that leverages Ethereum signatures to perform authentication
ERC-4361 defines a message format that a user signs using their keys to authenticate.
An example payload looks like the following:
localhost wants you to sign in with your Ethereum account:
0x225f137127d9067788314bc7fcc1f36746a3c3B5
This is a test statement.
URI: https://localhost/login
Version: 1
Chain ID: 1
Nonce: abcdef1234567890
Issued At: 2023-01-30T00:00:00.000ZAfter authentication, an app may resolve the user's ENS name and profile, as well as other onchain resources.