Suggestion for a default message to be signed via AOPP

This is a suggestion for a default message to be signed via the AOPProtocol.

It is deliberately kept short so it can be read in full on hardware wallets with minuscule screens. Since the proof of ownership is contained within the signature itself, I'm of the opinion that the content of the message is not really that important.

It makes a lot of sense to include a unique identifier (challenge) in that message, so that the message can't be predicted.

Suggestion:

I confirm that I solely control this [Bitcoin] address (Unique Identifier: 46fa...5af1).