Cryptocurrency custodian Copper is aiming for a $500 million valuation as it seeks to sell its business, with Cantor Fitzgerald facilitating the process. The company's primary asset, the ClearLoop settlement system, is designed to enable delivery-versus-payment within custodial environments, significantly reducing settlement risk. Copper has recently closed its enterprise custody business to concentrate on ClearLoop, which manages over $50 billion in monthly notional trading volume and serves more than 1,000 active counterparties.