I've come across many descriptions of UTXO - but my favorite one is **surprise** from Resistance Money.
"...the vehicle for spending bitcoin is the Unspent Transaction Output (UTXO)."
Simple.
If we don't actively protect our privacy, we can't expect to have any.
16 years ago, one block marked the fate of it all. Happy Genesis & Proof of Keys Day!
ALWAYS remember - not your keys, not your coins.