According to ChainCatcher, clairemxd.eth, product director of Sign, said in a post on X: “Sign’s journey began with EthSign in 2021, a hackathon project born from a simple idea of CEO Xin that digital signatures should be verifiable and accessible on the blockchain. After several iterations of the EthSign product, we launched Sign Protocol, a full-chain authentication infrastructure that allows users to sign data in a structured format on the chain.
Sign App is the first product launched in 2025 and is the focus of Sign this year. Sign App connects the user's real-world ID with the blockchain wallet in a user-friendly way, seamlessly proving the user's identity while protecting privacy.
Sign App is privacy-focused and aims to empower users to control their identities. But Sign App is more than just identity verification, it creates a universal trust layer for the Web3 ecosystem. In the future, we hope to develop Sign App into the leading on-chain wallet identity resolver, providing a resolver framework for applications to easily verify user identities. "
