What would stop some major company from blacklisting specific Bitcoins based on the "inputs" used and their "origins"?
Because a transactions with 5 inputs and 5 outputs is possible and it doesn't make sense to ask the question &quot;the output to me comes from which input?&quot;
Simply, transactions are about total input value and total output value and the rest is miner fees. Tracking a coin's origin is not technically possible.