Just out of curiosity, can I post a signature from my bitcoin wallet to which money from signature campaigns has been sent to for the past several months? I mean, is that a valid enough proof?
Yes you can if that address is used by the account yoy wish to sell in a signature camp. This also mean that you have poat an address before right?
Yeah, I posted my address when I was applying for some campaign earlier this year, and I can provide a signed message from that same used address