Tag: Keychain

JCB Co., Ltd. Japan’s only international payment brand (Head Office: Tokyo, Japan) and Keychain GK (Head Office: Singapore) implement offline payments using near-field communication (NFC), self-sovereign identity, and blockchain technology. Figure 1. Offline Payment Concept With the spread of 5G and the development of Internet of Things (IoT) devices, machine-to-machine payments will automatically execute contracts and make payments without human intervention, and possibly without network connectivity. JCB and Keychain have developed the first payment infrastructure for machine-to-machine transactions that supports offline payments using NFC. Leveraging Keychain’s blockchain and self-sovereign identity technology, the system addresses challenges related to the risks of ... Read more