D-Engraver is founded by HKUST Alumni and professors in 2018, provides blockchain-based remote deal-closing platform for B2B, B2C businesses, that allows dealing parties to trace full life-cycle credential records of trading IDs by timeline, to identify and notarize with the encrypted digital signature, then store and roll-back historical data. Being one of the early batches of companies invested by HKUST Venture Fund, our team members consist of candidates from top universities around the world, and provide leading blockchain SaaS platform. Several patents in blockchain algorithm and data encryption methods have been granted and our solutions had significant clients in the legal, BFSI, advanced manufacturing and healthcare industries.