a Txo is represented in a similar manner as a Utxo, that is, prevtxId:vout. Hovewer, we use a different type name to denote we're dealing here with tx outputs that may have been spent or not
a Txo is represented in a similar manner as a Utxo, that is, prevtxId:vout. Hovewer, we use a different type name to denote we're dealing here with tx outputs that may have been spent or not