Brazilian fintech company Tanssi is set to launch a government-backed blockchain microloan service in São Paulo, targeting small-scale rural producers. The service will offer quick loans of up to 15,000 Brazilian reais (approximately $2,800). Unlike public blockchains like Ethereum or Solana, Tanssi's service is built on its proprietary chain technology. This decision aims to ensure predictable costs and higher reliability, avoiding the common issues of fee volatility, congestion, or downtime associated with public blockchains.