In the last few years, digital constitutionalism has emerged as a novel, alternative, Internet Governance approach aiming at ordering and limiting the exercise of power by both states and private operators, as well as at promoting people's control over digital technology development.

Although digital constitutionalism is encountering growing popularity, the prevalent non-binding nature of its initiatives, the discrepancy between the jurisdictional border and transnational digital processes, and the technological embedment of governance mechanisms, have hindered the effectiveness of its impact.

This paper identifies epistemic communities as a crucial factor for the constitutionalization of the digital technologies since they have the necessary technical expertise and policy commitment to create norms and standards at transnational level, informing the policy choices of both state and non-state actors.

In order to illustrate this nexus, the article performs an in-depth investigation on the case of the European Commission High-Level Expert Group on Artificial Intelligence (HLEG-AI). The analysis revealed that the HLEG-AI effectively gathered an epistemic community strongly committed with fundamental rights promotion and capable to influence the following policy-making activities of the European Commission, as well as of other non-state stakeholders, whose involvement is essential in order to embed digital constitutionalism principles within the design of AI systems.

在过去的几年中，数字宪政已经成为一种新颖的，替代性的互联网治理方法，其目的是命令和限制国家和私人运营商的权力行使，并促进人们对数字技术发展的控制。

尽管数字宪政越来越受到人们的欢迎，但其倡议的普遍非约束性，管辖边界与跨国数字过程之间的差异以及治理机制的技术嵌入，阻碍了其影响的有效性。

本文将认识论社区视为数字技术宪法化的关键因素，因为它们具有必要的技术专长和对在跨国层面上建立规范和标准的政策承诺，从而为国家和非国家行为者提供了政策选择。

为了说明这种联系，本文对欧洲委员会人工智能高级专家组（HLEG-AI）的案例进行了深入研究。分析表明，HLEG-AI有效地聚集了一个致力于促进基本权利的认知社区，并有能力影响以下欧盟委员会以及其他非国家利益相关者的决策活动，这些活动的参与对于将数字宪政原则嵌入到AI系统的设计中。