The blockchain was first used in the financial field, and the essence is a distributed database built on the principle of cryptography. But how do we believe that blockchain is safe and trustworthy? In fact, the current blockchain technology development is not very complete, and accelerating the industry standard development blockchain can become a trust machine. It is reported that the Data Center Alliance and China Information and Communication Research Institute will hold the "2017 Trusted Blockchain Summit in 2017 to establish a trusted blockchain alliance to accelerate the development of international standards and industry standards for blockchains." What is a trusted blockchain? Xiaobian takes you a closer look. In recent years, the upsurge caused by the development of blockchain technology and industrial applications has become more and more intense in the world, and has received extensive attention from governments, finance, investment, and technology. China's blockchain industry has entered a relatively rapid development period from two years ago. The scale of investment and financing in the blockchain field has expanded significantly compared with the past. Many enterprises have invested in the blockchain industry to carry out blockchain technology experiments and Application research and development, accumulated a lot of technical experience, various types of blockchain projects and applications in China, and promoted the rapid development of China's blockchain industry. From a technical point of view, the blockchain is essentially a distributed database built on the principle of cryptography. From an application perspective, the blockchain is a trusted, shareable public ledger. The ledger will be revised in accordance with strict rules and open protocols, and everyone can check it, but no single user can tamper with it. Blockchain may not be a new technology model. It is just a new combination of solutions that use existing networks, formula algorithms, etc., but this combination has an incalculable value impact. The blockchain was first used in the financial field and was widely known as the underlying technology of Bitcoin. However, the far-reaching significance of the blockchain far exceeds the impact of Bitcoin. It has been found that “the blockchain has the ability to convey trust and value, reconstruct the value system and order rules, and it has a natural fit in promoting social solutions to the crisis of trust, rationally restricting power, and promoting broader and fairer social participation. Advantage". In June 2017, the World Economic Forum released the white paper “Improving the Potential of Blockchainsâ€, pointing out that the blockchain is about to create a more disruptive and transformative Internet era. The reason is that the blockchain can use the global peer-to-peer network to ensure the integrity of the exchanged value in billions of devices without the need for trusted third parties, promote the creation and trading of social values, and promote the information Internet. Transforming to a new era of value Internet. The blockchain has broad application prospects and potential, according to the World Economic Forum survey. By 2025, 10% of global GDP will be stored in blockchain technology. Blockchain is the cornerstone of the value of the Internet, blockchain applications are spreading from the financial sector to various social sectors, and gradually become an indispensable part of the Internet. He Baohong, deputy director of the Institute of Technology and Standards of China Information and Communication Research Institute, said: "Many applications of the current blockchain are not 'explosive' applications, but rather 'alternative' applications." Combined with the application of blockchain, it can be judged that the development of blockchain is still in a relatively early stage of development. In fact, the current development of blockchain technology is not very complete, and there are still potential technical risks. Once these risks are out, they may cause huge losses. In June 2016, hackers used the Ethereum DAO contract vulnerability to attack it, causing the $60 million bitcoin to be hijacked; in the past two months, the world-famous exchange Bitfinex was caused by multiple signature defects. Ten thousand bitcoins were stolen, causing nearly $70 million in losses. Until April of this year, Bitfinex paid off all users. There are many similar "accidents", even for Bitcoin, the most mature blockchain application, the biggest crisis in its trading comes from technical risks. The potential risks of blockchain technology applications are also beginning to be exposed, and the application of blockchain technology to risk management is receiving more and more attention. How to ensure the security of the private key? How to circumvent the highly intensive algorithm error based on cryptography in a controllable range? How to improve the computing power to ensure the stability of the system to deal with the risk of the protocol being attacked? It is a topic that cannot be avoided in the development of block links. In addition, blockchain performance is low, and it is difficult to meet the demand for high-performance scenarios. In the case of Bitcoin, the existing bitcoin transaction speed is 7 strokes per second, and even 5-6 hours for confirmation when it involves a large number of transactions. This is far from the current clearing and payment requirements of millions or even thousands of tens of thousands of megabytes per second, which limits the application scenario of the blockchain to a large extent.
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