Blockchain has been a hot topic for a decade, but what about its real-world impact? I sit down with Arun Maharajan, Blockchain Technology Lead at UNICEF’s Office of Innovation, to talk about how his team uses blockchain to deliver vaccines, support microfinance, and bring transparency to humanitarian aid.Arun walks us through tracking cold-chain data for vaccines in Bangladesh, helping youth entrepreneurs in Burundi access microloans, and how blockchain has evolved from Bitcoin to the privacy-preserving systems used today.We also talk about what it takes to bridge cutting-edge innovation with field work in some of the world’s most challenging environments.In the lifestyle segment, Arun shares stories from his Italy trip, playing at Rockin’1000, why travel is his reset ritual, and his winter goal of taking a dip in a very, very cold pool.Enjoy.

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