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ADA Petrobras tests Cardano blockchain to track low-carbon fuel claims
Brazilian state-owned energy giant Petrobras is using the Cardano blockchain to conduct two research projects aimed at tracking claims related to low-carbon fuels. The Cardano Foundation announced the two pilot plans on September 30: one involving Sustainable Aviation Fuel (SAF) and the other for "Diesel R"-a renewable diesel produced by Petrobras and partly derived from vegetable oils and animal fats.
Solving double counting vulnerabilities in green fuels
The aviation project focuses on a platform called CS-SAF, which was built with the assistance of Ledger Labs at the Federal University of Rio de Janeiro in Brazil (PUC-Rio). CS-SAF is able to transform the attributes of sustainable aviation fuels into standardized tokens on the Cardano network, with metadata aligned with the International Aviation Organization's International Aviation Carbon Offsetting and Emission Reduction Program (CORSIA).
在此系统中，代币可以被铸造、转移、查询以及注销，从而确保每一项排放权声明只能被使用一次，有效防止了重复计算。在传统的“账本与索赔”（book-and-claim）模式下，航空公司即使在其物理燃料在其他地方燃烧的情况下，也可以为可持续航空燃料的环境效益付费。这种模式存在记录所有权归属及索赔时间的需求缺口。而在 Cardano 网络上，应用程序会详细记录每项权益的来源、接收者以及索赔时间。乘客只需输入出发地和目的地机场，即可获得一份证书，将其分配额度追溯至原始燃料证书，从而增强透明度。
从炼油厂到范围三排放报告的全程燃料溯源
与此同时，柴油项目记录了燃料在生产、运输和使用各个阶段的信息，并将这些数据整合成燃料全生命周期的历史轨迹。这有助于企业进行“范围三”（Scope 3）排放报告，即涵盖供应商和客户之间的间接排放。由于底层数据通常分散在其他企业中，这种链上记录提供了关键的验证手段。
目前，这两个项目仍处于研究阶段。柴油模型被描述为提议方案，公告中并未披露所覆盖的燃料体积或更广泛使用的具体时间表。
Cardano 在巴西的企业级应用势头
Frederik Gregaard, CEO of the Cardano Foundation, said: "Brazil has always been one of the most determined adopters of Cardano, with in-depth applications from SERPRO in the government sector to SENAI in the industrial sector. It's encouraging to see Petrobras, one of the largest companies in the region, continue to recognize the value of proof of origin and traceability along the chain."
This exploration in the fuel field further extends Cardano's promotion at the enterprise level. Previously, Fireblocks has opened up Cardano's native token service to institutions and launched broader integration and partnership expansion. Rafael Fraga, head of Latin American business development at the Cardano Foundation, pointed out that energy transformation depends not only on the development of new fuels, but also on the establishment of trust mechanisms. Public blockchains provide a shared and verifiable infrastructure for the energy market.
