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A USSD-based decentralized finance system on Rootstock enables users with legacy GSM phones to access blockchain-powered financial services without needing smartphones or internet connectivity. By integrating USSD gateways with an off-chain Node.js b...

USSD (Unstructured Supplementary Service Data) is a protocol used by GSM cellular telephones to communicate with the network. It is often used for services such as balance inquiries, mobile banking, and more. Africa’s Talking provides an API to handl...
