Abstract: The circulation of data elements has become an important means of developing digital economy, but there are still many difficulties and challenges in achieving an orderly circulation of data. Taking the talent employment service scenario as an example, this article analyzes the pain points and needs of all parties in the business from the perspective of data circulation, and discusses how the data authorization service based on blockchain technology can protect personal information security and the data rights of all parties. Under the premise, through the effective authorization of data related parties, data can be transmitted from providers to users, so as to meet the reasonable needs of different organizations for data collected by government, improve the government's governance capabilities, optimize public services quality, and boost the benign development of the data elements market.

Key words: data circulation, blockchain, data preservation and storage, user authorization, personal information protection

摘要： 数据要素的流通已成为发展数字经济的重要手段，但实现数据有序流通仍存在诸多困难与挑战。本文以人才就业服务场景为例，从数据流通的角度分析了该业务中各方的痛点与需求，探讨了基于区块链技术，在保护个人信息安全与各方数据权益的前提下，通过数据相关方的有效授权，将数据从提供者传递到使用者，满足社会机构对政务数据的合理需求，提升政府执政能力，优化数据便民服务，助力数据生产要素市场良性发展。

关键词: 数据流通, 区块链, 数据保全与存证, 用户授权, 个人信息保护