Blockchain News Express: EthSign recently announced the launch of SignPass, an on-chain verifiable ID that is compatible with existing passport systems. All SignPass credentials will be encrypted and registered on the chain through the Sign Protocol, and you can even register for permanent residency in Sierra Leone on the chain! Each holder will receive a physical ID card that meets the standards of the ICAO Machine Readable Passport (MRP) and provides a unique QR code linked to the blockchain record. Simply scan the QR code to verify the validity of their SignPass. This system is not only secure and transparent, but also smoothly integrates international passport standards. What do you think? Feel free to share your views in the comments section! #区块链新闻#