Ethereum-Based Tender System

A distributed system that has been developed based on the Ethereum platform that allows for the holding of electronic tenders in a trustless environment. This system is based on blockchain technology that enables a decentralized peer-to-peer system that does not require a trusted intermediary. The article gives a brief overview of blockchain technology, analyzes the existing problems and proposes a new method of decentralized storage of large amounts of information providing an efficient interaction with the data and guaranteeing reliability. This method was implemented in the tender system.