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Blockchain makes the aircraft refueling and payment process more transparent and efficient

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According to foreign media reports, in order to improve the transparency of the aircraft refueling and payment process, Russian Siberian Airlines and its fuel suppliers have successfully completed the blockchain refueling project "Smart Fuel" pilot work. According to reports, the new blockchain drive system automates the entire refueling and payment process, which can greatly shorten the payment time. The system can process gas payments in a few seconds, while traditional payment transactions usually take 4 to 5 days. At present, at Russia's Murmansk International Airport, more than 100 Siberian Airlines flights have tried this platform. Blockchain technology simplifies aircraft refueling "Blockchain is essentially a shared database. The data or information stored in it has the characteristics of "unforgeable", "full traces", traceable, "open and transparent" and "collective maintenance"." Tianjin University Liu Xiulong, a professor at the School of Computer Science and Technology, said that these features also allow blockchain technology to have a wide range of application scenarios, such as smart logistics, government public services, smart medical care, media entertainment (copyright protection), judicial deposits and other fields. Play space. Due to the heavy paperwork and time-consuming process of traditional fuel payment procedures, and the inability to predict the exact amount of fuel required for flights, airlines need to pay more funds to fuel operators to ensure that they have sufficient fuel. The "Smart Fuel" project is the application of blockchain technology in the accounting and settlement scenarios between airlines and fuel operators. This application is developed based on the blockchain framework Hyperledger Fabric. During the execution process, an executable distributed code contract or smart contract module is launched, so that the initial fuel amount and cost can be transparently visualized on the blockchain platform, thereby helping Costs are effectively controlled. When it is necessary to provide fuel for the aircraft, the exact amount of fuel required by the pilot and the fuel cost will be sent to the bank that the airline cooperates with, and the required funds will be notified. After the refueling is completed, the funds will be automatically deducted and confirmed to all relevant parties immediately. "Hyperledger Fabric is an open source, proven enterprise-level distributed ledger platform." Yan Xin, marketing manager of Micro (Tianjin) Technology Development Co., Ltd., introduced that it was originally designed for enterprise-level applications. Hyperledger Fabric provides a permissioned network with advanced privacy control, that is, only authorized data can be shared among "allowed" participants, which not only achieves the purpose of sharing the corresponding element information, but also protects the data required by the enterprise privacy. "When all information enters the block chain, with the help of the block chain's non-tamperable characteristics, the data can not be tampered with, traceable, and auditable. The automatic payment operation avoids breach of contract. At the same time, the system is improved. “Transparency.” Liu Xiulong said, in addition, through smart contracts, many automated operations are realized. The contract will automatically execute the operations confirmed by various aspects, all of which are completed by machines, which can help all parties to build mutual trust and avoid artificial untrustworthiness. Trivial operations such as advance payment and bank guarantee. In the end, the entire process saves time, reduces costs and reduces risks. Blockchain can improve payment security It is understood that the application shares data on fuel demand on a shared ledger. A copy of the shared ledger is managed by three parties. The payment for fuel is made through the network. Digital invoices are created through smart contracts during each transaction. So is this kind of fully automatic payment operation on the blockchain really safe? "Theoretically speaking, it cannot be said to be 100% safe. If 51% attack the blockchain or the supervision mechanism is not perfect, it will lead to security risks and loopholes in the blockchain." Liu Xiulong gave an example of this, assuming the same computing power resources. Of the 10,000 people who use the same blockchain, more than 5,000 of them have reached a consensus that if they want to attack the blockchain, such an attack will successfully destroy the previous agreement of the parties. Of course, this situation is generally difficult to achieve. "In general, security is still guaranteed." Yan Xin said that the blockchain has the characteristics of multi-party deposit and traceability. Any modification will leave traces, which is easy to be held accountable, and at the same time increase the cost of fraud. At present, it is not uncommon to use blockchain technology to complete payment application scenarios. For example, there are good applications in cross-border payment, supply chain management (collaboration and traceability), cross-border trade, and financial services. "With the continuous increase of application scenarios in the future, blockchain technology may be applied to more and more important fields, so how to ensure information security is currently the most important thing to attract attention." Liu Xiulong introduced, among which the blockchain framework is currently used in my country The basics are international open source systems. my country should independently research and develop the blockchain framework, and each line of code should be completed by us. At present, our team is doing this work. Only when the basic framework is autonomous and controllable can my country's blockchain application scenarios achieve real security.

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