BIM Credibility A Framework of Blockchain-enabled BIM Data

The construction of buildings needs to rely on Building Information Modeling (BIM) model data. If we want to finally form a legally effective BIM database, we must know the source of the BIM data to ensure the security and traceability of the BIM data. Blockchain technology, assuring the immutability and provenance of data, can play an important role in the credibility of BIM data. The application of blockchain to BIM can solve these problems currently existing in BIM technology. This article establishes and proposes a framework of Blockchain-enabled BIM data. By the way of a software plugin or a new App, we can record the changes of the BIM model on the Blockchain. Furthermore, the designers can select some components and properties as core data and put these dadas on Blockchain by the BIM data services (BDS). This way can improve the efficiency of BIM data comparison. Thus, all stakeholders of the project can trace the BIM models to verify the credibility and ensure the safety of data.