Re:Ethereum Proof of Stake FAQ
by DennisP on Saturday August 19, 2017 @09:59PM
(#15056615)
Selling the private key would be a bad idea since you can't guarantee the seller destroys it. But you could have the staker address be a contract, with an ownership that can be transfered.
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You could use an HSM to hold the private key and then sell the HSM. Overall it's still a bad idea to buy an HSM because you don't know what other transactions have been signed, but maybe the HSM keeps a history of everything it has signed as well.
Which, if you can still sell your staked coins, what is the point of locking them up in the first place?