The Ethereum blockchain is one such system. Ethereum is DIY platform where one could create decentralized apps (Dapps) which allow us to write automated codes. These automated codes are nothing but smart contracts that act as a set of rules for a financial system. In case of WYZth(
https://www.wyzth.org/ ) , the Tron blockchain stores and handles all the transactions,hence there is no one who can stop the smart-contract from the working or alter its logic in any way.