This report summarizes the requirements and proposes a high-level solution for interoperability across recently proposed COVID-19 exposure notification efforts. Our focus is on interoperability across exposure notification (EN) applications which are based on the decentralized Bluetooth Low Energy (BLE) protocol driven by Google/Apple Exposure Notifications API (including DP3T and similar protocols). We distinguish different interoperability use cases, such as worldwide public EN interoperability, as well as interoperability in the enterprise EN systems. This report also proposes an API and a backend implementation architecture for EN interoperability. Finally, we propose using a permissioned blockchain-based solution for managing EN backend certificates and configurations (without storing any users' data on the blockchain) for helping address EN interoperability challenges across different vendors.

中文翻译：

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关于去中心化暴露通知系统的互操作性

本报告总结了要求，并提出了一种高级解决方案，以实现最近提出的 COVID-19 暴露通知工作的互操作性。我们的重点是跨曝光通知 (EN) 应用程序的互操作性，这些应用程序基于由 Google/Apple 曝光通知 API（包括 DP3T 和类似协议）驱动的分散式蓝牙低功耗 (BLE) 协议。我们区分不同的互操作性用例，例如全球公共 EN 互操作性，以及企业 EN 系统中的互操作性。该报告还提出了用于 EN 互操作性的 API 和后端实现架构。最后，我们建议使用基于区块链的许可解决方案来管理 EN 后端证书和配置（不存储任何用户的