Work Execution Status Management and Verification System based on Blockchain and Various Tokens

Abstract

In Japan, the number of companies allowing side jobs is increasing because model employment regulations are revised. However, there are various problems in the situation where the people can engage in both main and side jobs. For example, some small companies may not present details regarding the contract about the side job and may delay or refuse payment for work. In addition, it is difficult to check the progress of workers’ tasks correctly and to prevent long working times. To solve these problems, a management system is necessary for recording the status and the progress of the jobs. On the other hand, blockchain-based data management infrastructure that can share data among various participants while guaranteeing data integrity is getting attention. On the blockchain-based infrastructure, it is possible to issue and distribute various types of tokens (i.e., fungible tokens, non-fungible tokens (NFTs)) for currency and assets. In this study, we propose to utilize the blockchain technology to develop a new system that manage the status of job duties for workers and their respective working times. In this system, an NFT is issued to each worker for identifying which the main or the side job the worker is engaging, and the information on the token is updated based on the attendance status of the token holder. In addition, the system has a function of managing the time spent by the worker for each job by issuing a fungible token. The amount of the issued fungible token corresponds with the upper limit of working times allowed for the worker, and the token is consumed according to working times of the worker.