Services computing can offer a high-level abstraction to support diverse applications via encapsulating various computing infrastructures. Though services computing has greatly boosted the productivity of developers, it is faced with three main challenges: privacy and security risks, information silo, and pricing mechanisms and incentives. The recent advances of blockchain bring opportunities to address the challenges of services computing due to its build-in encryption as well as digital signature schemes, decentralization feature, and intrinsic incentive mechanisms. In this paper, we present a survey to investigate the integration of blockchain with services computing. The integration of blockchain with services computing mainly exhibits merits in two aspects: i) blockchain can potentially address key challenges of services computing and ii) services computing can also promote blockchain development. In particular, we categorize the current literature of services computing based on blockchain into five types: services creation, services discovery, services recommendation, services composition, and services arbitration. Moreover, we generalize Blockchain as a Service (BaaS) architecture and summarize the representative BaaS platforms. In addition, we also outline open issues of blockchain-based services computing and BaaS.

服务计算可以通过封装各种计算基础结构来提供高级抽象，以支持各种应用程序。尽管服务计算极大地提高了开发人员的生产力，但它面临三个主要挑战：隐私和安全风险，信息孤岛以及定价机制和激励措施。区块链的最新进展由于其内置的加密以及数字签名方案，去中心化功能和内在激励机制，带来了应对服务计算挑战的机会。在本文中，我们提出了一项调查以调查区块链与服务计算的集成。区块链与服务计算的集成主要表现在两个方面：i）区块链可以潜在地解决服务计算的关键挑战，并且ii）服务计算还可以促进区块链的发展。特别是，我们将基于区块链的当前服务计算文献分为五种类型：服务创建，服务发现，服务推荐，服务组成和服务仲裁。此外，我们概括了区块链即服务（BaaS）架构，并总结了代表性的BaaS平台。此外，我们还概述了基于区块链的服务计算和BaaS的未解决问题。此外，我们概括了区块链即服务（BaaS）架构，并总结了代表性的BaaS平台。此外，我们还概述了基于区块链的服务计算和BaaS的未解决问题。此外，我们概括了区块链即服务（BaaS）架构，并总结了代表性的BaaS平台。此外，我们还概述了基于区块链的服务计算和BaaS的未解决问题。