We explore the potential of Time-Bin Conference Key Agreement (TB CKA) protocol as a means to achieve consensus among multiple parties. We provide an explanation of the underlying physical implementation, i.e. TB CKA fundamentals and illustrate how this process can be seen as a natural realization of the global common coin primitive. Next, we present how TB CKA could be embodied in classical consensus algorithms to create hybrid classical-quantum solutions to the Byzantine Agreement problem.

翻译：我们探讨了时间箱会议密钥协商（TB CKA）协议作为实现多方共识手段的潜力。我们阐述了其底层物理实现，即TB CKA的基本原理，并说明了该过程如何被视为全局公共硬币原语的自然实现。接着，我们展示了如何将TB CKA融入经典共识算法，以构建解决拜占庭协定问题的混合经典-量子解决方案。