Thank you for the reply. Just fascinating.
So when I'm running bitcoin-qt, not only do I have the blockchain downloaded to my harddrive, I also have the entire UXTO list (not just the UXTO that relate to me). I guess it builds that list itself as it downloads the blockchain initially?
yeah, the first time you synchronize it download the whole block. it resynchronizes every 10 mins and only download the latest block.