Is it possible to sign a message (not a transaction)

[etodanik]

With sol-wallet-adapter it is possible to sign a message as a proof of account ownership. This is useful for all sorts of things - a couple of projects used it for wallet verification for airdrops.

I don't see this documented anywhere for Phantom. Is this an existing feature? And if not, was it removed due to any specific reason?

[fragosti]

@israelidanny it was never added, but it is on our roadmap.