I was a little surprised to see a public key along with a passcode and Lisk account number from my XCR deposit.  Is this public key the same as the one in discussions going like "please send me 1 XCR so I can get a public key" ?  Will we need to do a "first transaction" in our new Lisk accounts in a few weeks to generate a new public key, or is the one assigned at the ICO site a good public key forever?