Cardano tapped by Brazil’s state oil giant to track cleaner jet fuel and diesel Özet: Kripto piyasasında önemli gelişmeler yaşanıyor. Petrobras, Brazil’s state-controlled energy company, is testing the Cardano blockchain to track claims about lower-carbon fuel, in two research projects announced Wednesday by the Cardano Foundation shared with CoinDesk. One covers sustainable aviation fuel, a