Daf to the rescue – it is miracle that any currency is accepted. Going to an exotic currency seems like pushing the miracle too far.
Maybe, as in the lottery thread, it depends on what else you do for hishtadlus. If you have a steady job and want to increase your rate of return investing a little into crypto or lottery, this is one thing.
But, if you did not try to get a profession, and chase miracles instead, this is unseemly. If you learned Torah disregarding your financial status, then you should be happy with your helek. If you now ask Hashem for a miracle to provide for you, it means that you both not value your learning and did not bother to learn a profession. You should at least go take swimming lessons.