Blockchain technology has attracted the interest of the global construction industry for its potential to enhance the transparency, traceability, and immutability of construction data and enables collaboration and trust throughout the supply chain. However, such potential cannot be achieved without blockchain “oracles” needed to bridge the on-chain (i.e., blockchain system) and off-chain (i.e., real-life physical project) worlds. This study presents an innovative solution that exploits smart construction objects (SCOs). It develops a SCOs-enabled blockchain oracles (SCOs-BOs) framework. To instantiate this framework, the system architecture of a blockchain-enabled construction supply chain management (BCSCM) system is developed and validated using a case study, whereby four primary smart contracts are examined in the context of off-site logistics and on-site assembly services. The validation results show that accurate data is retrieved against malicious data in each request, and the corresponding reputation scores are successfully recorded. The innovativeness of the research lies in two aspects. In addition to mobilizing SCOs as blockchain oracles to bridge the on-chain and off-chain worlds, it develops a decentralized SCO network to avoid the single point of failure (SPoF) problem widely existing in blockchain systems. This study contributes to existing research and practice to harness the power of blockchain in construction.

区块链技术因其在提高建筑数据的透明度、可追溯性和不变性以及在整个供应链中实现协作和信任的潜力而引起了全球建筑业的兴趣。然而，如果没有连接链上（即区块链系统）和链下（即现实生活中的物理项目）世界所需的区块链“预言机”，就无法实现这种潜力。本研究提出了一种利用智能建筑对象 (SCO) 的创新解决方案。它开发了一个支持 SCOs 的区块链预言机 (SCOs-BOs) 框架。为了实例化这个框架，使用案例研究开发和验证了支持区块链的建筑供应链管理（BCSCM）系统的系统架构，在场外物流和现场组装服务的背景下，研究了四个主要的智能合约。验证结果表明，针对每个请求中的恶意数据，检索到准确数据，并成功记录了相应的信誉分数。研究的创新性体现在两个方面。除了动员 SCO 作为区块链预言机来连接链上和链下世界之外，它还开发了一个去中心化的 SCO 网络，以避免区块链系统中广泛存在的单点故障（SPoF）问题。这项研究有助于现有的研究和实践，以利用区块链在建筑中的力量。并成功记录相应的声誉分数。研究的创新性体现在两个方面。除了动员 SCO 作为区块链预言机来连接链上和链下世界之外，它还开发了一个去中心化的 SCO 网络，以避免区块链系统中广泛存在的单点故障（SPoF）问题。这项研究有助于现有的研究和实践，以利用区块链在建筑中的力量。并成功记录相应的声誉分数。研究的创新性体现在两个方面。除了动员 SCO 作为区块链预言机来连接链上和链下世界之外，它还开发了一个去中心化的 SCO 网络，以避免区块链系统中广泛存在的单点故障（SPoF）问题。这项研究有助于现有的研究和实践，以利用区块链在建筑中的力量。