Check out the personal keys out of your Bitcoin Core shopper. They need to seem like mine (the next are keys from the testnet):
cQHjhLkGQHQZUZFZYHfXjsXkfdNPoAd2X58sa2x95vEWssrvpPLi
cVXThnV4XgJP7q1v3aVQacTkxHq96BpyoSCGPqMAyyJcVaGn93Zh
cVCAYjR4E5qvzCa3f6VYZhsZNCgWQUDikfFCg4Fom6fnecRXxKM5
Now go to your Electrum and try your keys there (Pockets>>Personal keys>>Export, you can see them to the best out of your addresses). The ought to look roughly like mine:
p2wpkh:cNs6rHM6cd7iY3YizmpG2GHxctjKxFtLV9WANCLgtcCRzcQ8AC1b
p2wpkh:cSGaa8sWKSvSty6bR36XZzEQsMr5bNW78XYCaTs3h4xqbsoLGghx
p2wpkh:cTERSrc4euSox7Wtk75vVFwLBpf7oqbpwQPTxNGoEjLxjwL8JrMJ
They seem like of a distinct kind than those out of your Bitcoin Core pockets.
A single personal key can result in completely different addresses, relying on the script it’s utilized in – these embrace p2pkh, p2wpkh, p2sh-p2wpkh. To comprehend that it’s true create a brand new pockets in Electrum (File>>New/Restore>>Create..,select possibility Import Bitcoin addresses or personal keys) paste the unprepended personal key out of your Bitcoin Core pockets. Electrum ought to create a brand new non-HD pockets for you with just one tackle. This adrress can be a distinct one from the one from which you derrived your personal key in Bitcoin Core shopper
Electrum prepends the script kind to the personal key throughout export and import in order that it is aware of which tackle to derive and examine for outputs on.
Earlier than sweeping prepend the personal key out of your Bitcoin Core pockets, that you simply obtained from the output of dumpprivkey "tackle", with p2wpkh:, like so: p2wpkh:cNbxok3SkFuSsbiiTqLj56Hp6bAhr2uJtr8aTkViBB3ghBMzQH3Y. Such prepended key paste into the sweep field and comply with the directions. You’ll be able to change the tackle given to you by Electrum with the considered one of your selection – it would work as effectively.
What’s handy in sweeping is that it’s going to work even if you happen to would not have any Bitcoin in your vacation spot pockets. The charge can be taken from the supply, in your case the UTXO from the tackle of your Bitcoin Core shopper.