[Mastercard Selects Polygon to Introduce Verified Username Feature for Self-Custody Wallets] According to CoinDesk, Mastercard has chosen Polygon to support its new system, which allows users to send cryptocurrency to verified usernames without the need for lengthy wallet addresses. Mastercard's crypto credentials enable standardized blockchain address verification through readable aliases. Cryptocurrency payment API company Mercuryo is responsible for verifying identities and issuing these aliases, which users can link to their self-custody wallets. This transfer method is similar to transferring funds via usernames instead of bank details. Users can also apply for tokens on Polygon to demonstrate that their wallets support verified transfers and assist applications in processing credential-based transactions.