Xin Yan

Cofounder, CEO at Sign

Xin Yan is the co-founder and CEO of Sign. Prior to joining Sign, he authored technical research papers and invested in Web infrastructure and the Ethereum ecosystem.

Current Roles

SignCurrent

Cofounder, CEO

Investments

CARV

Modular identity and data layer for gaming and AI

Clique

End-to-End Enterprise Token Operations

Ebisu

Decentralized stablecoin protocol

KNN3

Web3 Data solution

News Mentions

TRUMP'S OFFICE OF PERSONNEL MANAGEMENT PROPOSES ASKING FEDERAL WORKERS TO SIGN NON-DISCLOSURE AGREEMENTS -GOVERNMENT STATEMENT

@deitaoneMay 2026

Data: OPN rose over 12%, SIGN fell over 12%

Mar 2026