LINK is a universally used base cryptocurrency (digital token) in the LINK ecosystem, distributed and used by a range of services. LINK is based on an independent blockchain main net called LINK Chain, designed to offer performance and stability, and able to support the use of dApps for LINE users. 

LINK Chain is a consortium-type blockchain platform where each participating service constitutes one node in a larger network. It is built on a high-performing blockchain core network that can process more than 1,000 transactions per second in a single thread. LINK Chain supports prompt consensus based on the LFT (Loop Fault Tolerance) algorithm supporting BFT (Byzantine Fault Tolerance).