Question, in a multisig address, if you sign 1 of 2 of the keys, can this be verified by a third party even though it is an incomplete signature.
I'm thinking of Strategy partially signing a small transaction to move Bitcoin between two of their addresses as proof of asset.
And yes, I know Coinbase hold all Strategy's Bitcoin.
Yup. If you sign a PSBT with one key and drop it into Sparrow - it does exactly this- verifies that first signature and prompts you to sign the PSBT with one of the other two keys.
John was faster than me. But I can verify that he is correct.
However you are doxing yourself to whomever needs this advice information.
Seek a better strategy… coinjoin funds into a nunchuck multisig and share this maybe?
