Okay, here is a very rough draft for a new Kanji with the meaning Bitcoin:
The left part is of course the radical for gold, which should be the obvious starting point for anyone designing this.
The right part are just the numbers one and zero.
There is a slight problem with the fact that Kanji normally don’t use circles. But never mind. This is easy to understand and fast to write. It may do as a first draft until someone comes up with a better idea.