Electronic contract safekeeping method, electronic contract verifying method, contractor server, contract safekeeping server, electronic contract safekeeping system, and memory medium

摘要

An electronic safekeeping method, including displaying a contractual coverage of a contract at a covenantee terminal connected to a contractor server storing information of the contractual coverage; inputting contract agreement information representing whether agreeing to the contractual coverage or not, at the covenantee terminal; inputting safekeeping agreement information representing whether agreeing to a safekeeping of the contractual coverage or not, at the covenantee terminal, when the contract agreement information agreeing to the contractual coverage is inputted; requesting a contract safekeeping server to store the contractual coverage, when the safekeeping agreement information agreeing to the safekeeping is inputted; issuing a contract ID for identifying the contract at the contract safekeeping server in accordance with the request; and transferring the issued contract ID from the contract safekeeping server to the covenantee terminal and the contractor server.