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India's Universal Payment Interface (UPI) has garnered both praise and criticism from the global payment giant, Mastercard. At a recent UBS conference, Mastercard's CFO, Sachin Mehra, commended UPI for its role in digital transformation. However, he expressed concerns about its long-term financial viability. What is UPI?

In a major step towards ensuring robust security and transparency in identity verification processes, Brazil has initiated the use of blockchain technology for issuing its National Identity Card (Carteira de Identidade Nacional - CIN). Implemented by Serpro, this innovative approach encompasses the new version of the Shared Registry of the