university.alchemy.com/course/ethereum/sc/631631e2d13b2d24e60dcceb/stage/631697a65e3e3cb715cc63e4
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When signing a message with secp256k1 we can return the signature along with the recovery bit, allowing us to recover the public key from the signature. This will allow a blockchain node to take a signature of a transaction and understand which address authenticated this particular transaction.
to take a signature of a transaction and understand which address authenticated this particular transaction.
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