币界网报道：According to the official announcement of Bijie.com on June 12, IOST announced that it will soon launch the Signet Ring basic hardware module, which integrates biometrics and blockchain technology. It provides secure and verifiable digital identity control and is a modular entry point into the IOST RWA ecosystem. The ring uses the innovative "Proof of Heartbeat" technology to achieve decentralized biometric identity authentication using heart rate and heart rate variability (HRV). As a modular decentralized identity (DID) credential, it will open up users' access to various IOST modules in the future. In addition, as a daily wearable device, Signet Ring also has health functions such as heart rate monitoring and stress tracking, which can strengthen the connection between health data and secure digital access.