Replying to Avatar Luke Dashjr

Bitcoin signed messages don't prove ownership
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mark tyler 2y ago

Are you referring to signing a message with the key for an address that only temporarily has the correct balance?

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Luke Dashjr 2y ago

Addresses don't have balances at all

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mark tyler 2y ago

Haha ok true. I don’t mean that in the ETH sense. I mean that UTXOs have been sent to an address that is related to a private key, which has signed a message, and not thereafter moved. That’s possible to check, right?

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Luke Dashjr 2y ago

No, because that UTXO isn't necessarily theirs anymore

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mark tyler 2y ago

How so since in the hypothetical we’ve already checked that it hasn’t been spent? Maybe.. if they have signed a transaction and broadcasted it but it has yet to make it into a block?

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Luke Dashjr 2y ago

Or if they transferred it off chain