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From Elliptic Curve Cryptography perspective everything you sign is a "message" but the term "message" in bitcoin context means a random string that user wants to sign with his key (usually used for proof of ownership or something similar). This means when you use sign*message*withprivkey the code interprets the input as a string and signs it with a ...


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From within the GUI, no, and this is intentional. There is no reason to use P2PKH addresses anymore. If you need backwards compatibility, then that's what the P2SH checkbox is for. But if you really must have P2PKH addresses, you can configure Bitcoin Core to only use them by adding addresstype=legacy to your bitcoin.conf file. If you want your change to ...


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