The advantage of using CoExistCoin, Bitcoin and other cryptocurremcies rather than paper money is that money simply is not traceable. When you use digital money like CoExistCoin or Bitcoin you get a transaction ID. You use that id and input it in a blockchain explorer. You can track each and every transaction. In turn you can input the address that you sent the CoExistCoin or bitcoin to and keep an eye on funds in that wallet.
These cryptocurremcies are decentralized giving power to the people. Your currency is valid world wide. There are no borders for these currencies.
We will get in touch very soon.