PolySign
David Schwartz is the CTO and Chief Cryptographer at Ripple Labs. He is the co-designer of the XRP Ledger and one of the foremost civilian cryptographers in the United States.
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PolySign
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PolySign is an early stage fintech company established by Arthur Britto and David Schwartz. Their mission is to drive global use of digital assets by building mission-critical infrastructure that enables institutions to secure and transact in digital assets across the capital markets and payments sectors.