Looking at the blockchain application from the Shanghai Blockchain International Week Demo Day

From "what is the blockchain" to "what can the blockchain do" to "what does the blockchain do?", the blockchain has been accelerating from technology exploration to commercial application in the past 10 years.

At the same time, after the blockchain industry experienced a wave of ups and downs in the past two years, people began to believe that the blockchain can only achieve sound development if it is docked with the real economy.

On September 16th, at the “2019 Shanghai Blockchain International Week” DEMO DAY, 18 teams from the global blockchain technology development and application winds gathered to showcase the application of blockchain in various fields. It proves that the blockchain technology is not a high-rise castle in the air, but has the real ability to land in the real economy, and can indeed promote the development of the real economy.

Decentralized storage, landing in financial and medical scenarios

CovenantSQL founder Jing Jing demonstrated the use of blockchain to build a decentralized SQL cloud database to achieve decentralized storage of data, eventually replacing traditional MYSQL, MongoDB, PgSQL and other database applications.

Banks have always had a need to track data changes. In the past, banks used a centralized database such as SAP and Oracle to track data. The blockchain can easily trace the data history. From the creation of the table to the modification of the table to the modification of the data, each step can be recorded in the blockchain database, which can be easily queried and modified. At the same time, there are a lot of departments involved in the bank, and each department can easily obtain the modification of the overall data by querying the data of the management node.


In addition to its application in the financial sector, CovenantSQL also collaborates with the Chinese Academy of Hospital Affiliated Hospital to use the blockchain for data sharing. There are different branches in the hospital, the data needs to be stored together, and for the sake of scientific research and the need to solve the patient's medical information, there is also the need for exchange, and the blockchain database and cryptography technology can be allowed to be different. The hospitals deploy their own nodes to facilitate data exchange under the premise of protecting patient privacy.

Implementing the landing in the electronic data deposit certificate scene

The project led by Yang Sheng, blockchain system architect and general manager of the copyright blockchain alliance, is a “trusted deposit certificate system”. This project is based on the well-known open source blockchain underlying platform FISCO BCOS. The first prize of the 3rd China Blockchain Development Competition.

According to Yang Sheng, electronic deposit certificates have many pain points such as difficulty in depositing evidence, difficulty in obtaining evidence and difficulty in certification. The credible deposit certificate system puts the deposit certificate, evidence collection and litigation process on the platform to achieve a complete closed loop. In the business model, the trusted deposit certificate system is based on the technical characteristics of the blockchain that cannot be tampered, unforgeable, traceable, etc., ensuring the relevant characteristics of electronic data deposit on the platform. Connected with the Beijing Internet Court and the Hangzhou Internet Court to achieve cross-chain docking. Above the entire node, there are many authoritative third parties that guarantee the trust of electronic data.


On April 9, 2019, the first case involving the blockchain deposit was issued since the establishment of the Beijing Internet Court. The plaintiff used the Beijing copyright owner platform to do the evidence of relevant deposit and infringement evidence, and finally the court conducted the whole process. Monitoring. In this case, according to Yang Sheng, the characteristics of the blockchain system are shown in the following four parts:

First, it is more efficient. In traditional Internet court cases, the process of trial is very complicated, especially involving electronic evidence. Because both parties to the electronic evidence can lodge their own objections. The electronic evidence storage and evidence collection using the blockchain can be self-certified and save time for self-certification.

Second, it is more convenient. The deposit price of the work is very low, and it is real-time and efficient, supporting APP forensics, screen capture and evidence collection, and screen recording and evidence collection.

Third, more professional. In the previous trial, the judge saw a lot of materials. After the blockchain technology is used for proof, a certificate will be generated synchronously and the information will be synchronized to the Internet court. The judge sees a list of evidence, including the process of circulation, the relevance, legitimacy and authenticity of the evidence.

Fourth, it is more credible. There are third-party trusted time, Internet court, CA certification, and judicial identification center on the trusted certificate system. They are all endorsing the entire system, so it is more credible.

Let the ticket be tokenized

Zhang Zhongnan, founder and CEO of AlphaWallet, believes that the biggest benefit of using blockchain is tokenization. The reason is that any value-added thing can be easily traded after it has been tokenized. In addition, tokenization will also integrate existing network services to maximize service value.

In the 2018 World Cup in Russia, AlphaWallet cooperated with the International Football Association to carry out tokenization on some VIP World Cup tickets. This is the first time that the tickets for the World Cup tickets have been tokenized. In the past, many tickets for the World Cup did not reach the audience, but flowed to the secondary market. However, although the organizers know that there is a secondary market, they have no way to supervise the secondary market. After the ticket is tokenized, the organizer can write the rules into the smart contract. For example, the first ticket can only be transferred once, and the second ticket can only be transferred twice. If the transferred fare exceeds 10%, 5% of the proceeds will be taken back by the event organizer, which will allow the event organizer to have better rules for the secondary market.


In addition, Tarpu, co-founder of Taraxa, a blockchain project from Silicon Valley, shared the attempt to block the blockchain in Japanese automakers, game consoles, parking lots, etc. Taraxa believes that decentralized systems are not meant to replace centralization. The system is used to assist the centralized system. Many industries still rely heavily on centralization. Moreover, in promoting the commercialization of blockchain technology, Steven Pu does not think that the blockchain should be told to customers because they don't care about how high the technology is, and what value technology can bring. Simon Schwerin, head of KILT partnerships in Berlin, Germany, shared the creation of standardized verifiable certificates based on blockchain to help companies achieve a trusted business model in line with GDPR regulations. Currently, KILT is working with a German food ingredient certification agency to certify agricultural machinery and other production facilities. Lightnet Vice President & Co-Founder Tridbodi Arunanondchai shared the blockchain for cross-border payments, addressing the inefficiencies and costly solutions of traditional cross-border remittances.