The product provides an engine as a node of the ARPA blockchain-based multi-party computation network. Users can process their customized application or circuit upon this in a secure computation method. ARPA mainnet cryptographically enables private smart contracts, unprecedented data-at-use privacy protection, as well as scalable computational sharding. We will further release more features that including, allowing users to individually connect to ARPA mainnet and gain profit from providing computation power, and autonomous networking. Thanks to the SCALE-MAMBA for the computation VM.