How can "they" prove I (ever) did?
And if proven, how can "they" tell how many I own(ed)?
And after "they" proved I owned x amount, how are "they" going to tax me?
Only if I voluntarily keep records of my transactions, or am I missing something?

Oh, sorry:
Hello.
These may be newbie questions, but I haven't yet found a sound (legislative) answer, mostly only fud, or answers from the taxgatherers. Nothing solid, nor precedents.
Hence this post.