Is blockchain smart contract payment a scam?

The first thing to look at is the smart contract created by the public chain. Secondly, it depends on whether the specific code of the contract is reliable and whether there are loopholes and backdoors.

Aiming at the security problem of smart contracts, Chengdu Lianan Technology has launched a new version of "one-button" automatic formal verification platform VaaS-ETH, which can provide free contract security detection for smart contract developers.

1. Ponzi scheme is a classic scheme. In the era of blockchain, we found that this classic solution began to unveil the smart contract and showed a comprehensive sense of science and technology. Secondly, it mainly introduces the history of Ponzi scheme, the concept, influence, types and identification of intelligent Ponzi scheme. Ponzi scheme originated from a man named Charles Ponzi (1882- 1949). He is Italian, 1903 immigrated to the United States. I have worked in America, including painting, and want to make a fortune. He was sentenced to prison in Canada and Atlanta for forgery. After cultivating the dream of getting rich in the United States for more than ten years, Ponzi found that the fastest way to make money was finance. Therefore, from 19 19, Ponzi concealed his own history and came to Boston to design an investment plan and sell it to the American public. This investment plan is very simple. This is an investment with a high return. But Ponzi deliberately complicated the plan so that ordinary people could not understand it at all. 19 19, just after the first world war, the world economic system was in chaos.

Ponzi took advantage of this confusion. He claimed that he could make money by buying some European postal money orders and selling them to the United States. Because of the policies and exchange rates between countries, many economic behaviors are not easy for ordinary people to understand. In fact, anyone who knows a little about finance will point out that it is impossible to make money in this way. However, on the one hand, Ponzi played tricks in finance, on the other hand, he set a huge bait. He claims that all investments can get a 40% return within 90 days. In addition, he also provided people with the evidence of "seeing is believing": the first batch of "investors" did get the return promised by Ponzi within the specified time. Therefore, the latter's "investors" have greatly improved the blockchain. At present, it cannot completely replace the traditional industry, but the decentralization technology of blockchain can greatly improve the work efficiency and safety of the original industry. First of all, taking the banking industry as an example, blockchain can greatly improve the payment and settlement efficiency of banks. Under the existing banking system, the process of overseas remittance is more complicated. Each bank has its own account book, which cannot be exchanged and settled at will. The biggest feature of using blockchain distributed bookkeeping is a decentralized database! Through this account, banks joining the alliance can record and maintain multiple transactions at the same time. In addition to the financial sector, the decentralization of blockchain can also promote the traceability of products.