As a new generation of financial level decentralized digital asset custody trading platform, Bullex is committed to serving global cryptocurrency trading users, with a million level concurrent transaction matching processing capacity. In order to solve the security and trust problems of centralized digital asset management, and realize the custody and transaction clearing of digital assets under the supervision and governance of the community, the underlying technology of Bullex realizes the distributed generation and signature of private key of cross chain custody asset in all verification nodes by combining the cryptography tools such as elliptic curve digital signature, zero knowledge proof, and trusted multi-party computing On the basis of this, Bullex can realize the lightweight and non-invasive cross chain asset custody, and use the consensus mechanism and horizontal expansion in the liquidation layer to achieve efficient transaction liquidation. Bullex has opened for Fiat OTC trading, crypto exchange and perpetual contract trading.