The growth of technology with the creation of new tools for exchanges in financial markets has led to the development of e-commerce. The tools used in financial markets are blockchain and smart contracts. This study seeks to answer the question of whether smart contracts are legally valid contracts and if they are considered valid, what is their function in the financial markets? Smart contracts are contracts that are concluded on a blockchain platform under the supervision of artificial intelligence and are based on digitally encrypted currencies. Contracts are considered subject to the general rules of contracts due to the non-approval of special laws in different legal systems, and according to the principle of contractual freedom, they are considered valid contracts. Through studying the legal system of the United States of America, seeks to state that the main applications of smart contracts and blockchain header in financial markets are the transfer of different types of tokens, creating transparency and security in transactions in financial markets, and the sale of securities. Digital, syndicated loans, cash stocks and Commercial is a protection loan.
Having these blockchain platforms has created transparency in supply chain-based exchanges and prevented financial abuses. This article in two sections generally first examines the mechanism of concluding smart contracts and then examines the function of smart contracts in financial markets.
Also, the relationships between effective blockchain indicators to improve the competitiveness of the food industry and the effect of smart contracts on this industry have been studied.