The increasing digitization of production is leading to new requirements and an increase in complexity in data management. Data and applications will become even more decentralized in the future, while ensuring data security and data validity. These requirements are difficult to implement with traditional databases. One promising technology is the Blockchain, which has been used in the context of crypto currencies like bitcoins for several years. In this article, the blockchain is presented in an industrial application in the context of a quality data acquisition in assembly.