The main goal of this project is to provide all conditions for the information dissemination of foodstuffs among consumers, to allow on the basis of researched data to provide the feedback on product and/or seller for other stakeholders and, therefore, to guarantee the accuracy of this information by creating a decentralized system and a user restriction system of feedback from those who have not made an initial transaction regarding the seller’s address.
Until today, it was impossible to make such transactions or conduct business directly via the Internet, primarily because monetary units are different in nature from other information goods and intellectual property as such. When buying and selling, money must be debited from one account and credited to another. They cannot stay in two places at the same time.
The use of digital currency to calculate the purchase or sale of products involves the risk of double units spending of the currency in different places. In this case, one of them is not accepted for payment. This problem is known as the “double spending problem”.
In addition, centralized systems have many other problems, including:
• Total control of the system by owners
• The possibility of hacking the system and stealing funds in various
ways, including the human factor.
• The constant operator intervention into systems functionality (support/ update)
• Non-autonomy (data cannot be restored while is destroyed)
• The interaction of centralized systems is much more complex than
decentralized due to their monolithicity
The choice of blockchain as an information-sharing tool based on the problems of centralized systems and tasks solved by it, is an urgent problem today. In all decentralized systems, including blockchain, there is no supervisory autority. Checking the system chain allows you to make sure that the token has not been used before and has been used only once. Any other transactions with a specific currency unit and a owner will be ignored by the system.
The main reason for using the blockchain in the described situation, in accordance with the clearly set tasks, is to reach a consensus on the reliability of the analyzed information.
