Singapore based start - up Limestone ventures has unveiled plans to build a 100-ha , blockchain - sized smart city in the heart of Phnom city in Cambodia . The project is underpinned by a digital passport , secured via the Limestone mobile app , that enables verified holders to unlock smart features , from a crypto wallet to tap in - and - out for payment . The project is set for completion in 2022 , after which it will be opened up to third - party solution providers , said Limestone .
Singapore based start-up Limestone Network has unveiled plans to create a 100-ha, blockchain-backed smart city in the heart of Phnom Penh in Cambodia. The project is underpinned by a digital passport, secured via the Limestone mobile app, that enables verified holders to unlock smart features, from a crypto wallet to tap in-and-out for buildings. The project is set for completion in 2022, after which it will be opened up to third-party solution providers, said Limestone.