Commercial paper and blockchain
thank you
to know the difference between them, we need to know the definition of them first
digital currency: short for digiccy, which is the abbreviation of "digital
currency", is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
blockchain: blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is essentially a decentralized database, also known as the trust machine
from the above definition, we can know that blockchain is a technology, and digital currency is a kind of virtual currency
digital currency is not equal to blockchain
many people will understand blockchain as blockchain. Here I want to correct that digital currency is not equal to blockchain. Digital currency is only an application of blockchain, and some digital currencies may not be applied to blockchain technology.
In the field of blockchain, Tencent's blockchain is developing relatively fast. As early as 2015, Tencent's blockchain team has begun to pay attention to blockchain technology, and has carried out independent research and development. As of December 31, 2019, the number of Chinese invention patent applications related to Tencent's blockchain has reached 990, ranking first among Chinese application enterprises. After several years of research and development and exploration, Tencent blockchain has achieved good results in both the development of underlying technology and the construction of instrial ecology
the history of Tencent blockchain development:
there are no technical problems, just whether to do it or not. "
CAI Yige, the head of Tencent's blockchain, replied when asked what technical problems he encountered. On reflection, he added that technologies that have made breakthroughs in theory, such as secure multiparty computing and zero knowledge proof, have not yet been engineered. This is a problem for the whole instry
for Tencent blockchain, the bigger problem seems to be finding more scenarios“ "Blockchain + supply chain finance" is the scene Tencent vigorously promotes this year
at the end of last year, the supply chain financial service platform Xingbei cloud chain was released, and its underlying blockchain technology is the support provided by Tencent blockchain. In addition, Tencent also invested in uniifnance, which is Tencent's only strategic investment in supply chain finance
in the past nearly a year, how has the scene and Tencent blockchain progressed
today, after the founding meeting of the blockchain policy and law research group and the release of the white paper on blockchain and supply chain finance, odaily planet daily interviewed Cai Yige, general manager of Tencent's blockchain business, and Ji Kun, general manager of lianyirong company
according to the two people, in less than a year of operation, the flow of micro enterprise chain platform on the chain is about tens of billions of transactions, 12 banks are connected, and more than 70 enterprises are involved, involving energy, automobile, manufacturing and other instries. Now the penetration supplier level is about level 1 and level 2, which can rece the interest rate by 2-8 points compared with the traditional bank loans
micro enterprise chain platform is a key case of Tencent in supply chain finance. Tencent mainly provides the underlying technology infrastructure, including the underlying self research alliance chain, real-time clearing and account receiving capabilities; Lianyirong is mainly responsible for integrating resources and promoting the platform
supply chain finance is the head scene of blockchain, but in fact, the real implementation is still very slow, which makes people doubt the real change it brings. The two do not deny that this business is in a very early stage, and it will take some time to promote enterprises to join. However, they both believe that "after joining the blockchain, supply chain finance will actually have a very big change."
what the daily planet wants to know more is that with the addition of the supply chain finance after the blockchain, will enterprises and financial institutions be more willing to join? And can this rece the balance of SME loans and increase the number of enterprises that get loans
"(Supply Chain Finance) the biggest difficulty lies in the participation of financial institutions, because they can provide funds in the market." Ji Kun believes that the addition of blockchain can enhance the willingness of banks to enter the supply chain finance
in his opinion, the traditional banks of the four major banks are quite keen on the layout of blockchain. He said that the decentralization of supply chain finance itself and the authenticity of underlying assets are very difficult to check. Traditional financial institutions are not the mainstream, and there is no way to achieve penetration before. Therefore, banks can only get the data of primary suppliers, but the secondary and tertiary suppliers may need financing most. Now blockchain + supply chain finance has changed the credibility of multi-level data flow, strong credit can not be separated, and the synchronization efficiency of information, so that small, medium and micro enterprises which were difficult to obtain loans from financial institutions in the supply chain in the past can also obtain loans. The bank has always wanted to do the business of secondary and tertiary suppliers, and joined the blockchain to better control its own data
as for promoting enterprise use, Ji Kun said that many enterprises need some time to accept it, but because the block chain of supply chain finance mainly replaces the original role of commercial bills, the circulation of commercial bills itself has some pain points, such as counterfeiting, so they are relatively easy to accept
when the daily planet asked about how to ensure the authenticity of the information on the chain, Cai Yige said that different information can be cross verified, but he also thought that this was a problem indeed, and the use of blockchain could not guarantee the authenticity of the information on the chain. Therefore, the first step of the micro enterprise chain is actually accounts receivable. It is true to use invoices to protect the underlying assets. With the electronic business system of small and medium-sized enterprises, it will go deeper in the future
he added that blockchain can also improve the efficiency of information synchronization“ I think it's the control of information. In the case of centralization, even if you have information, you can tamper with it. "
with the focus of Tencent blockchain this year, we naturally want to know the future plan. However, Cai Yige's answer is the same as that at the beginning: "we can't talk about the plan. We will continue to think about the scenarios under which the blockchain can play its value."
about the development of this area:
first, we must choose the right scene, and we must find experts in this instry
Secondly, it should be in line with the nature of technology and have commercial value Thirdly, it should meet the needs of future development Fourthly, the architecture should be fully integrated with other technologies to solve the problemthe concept of blockchain should be a new outlet, specifically more use of network search, increase knowledge, network search results - Tencent blockchain development to you
connect the device to the computer with USB cable, and then you will hear the prompt sound that the computer has been connected successfully
please turn off the device first, and then you will hear the prompt that the computer is not connected successfully
first press and hold the power key to display the apple logo, and then press and hold the on / off key and the home key until the logo disappears. Continue to press and hold the power key for about 4-5 seconds, and continue to press and hold the home key until an iPhone in recovery mode is detected by iTunes (if successful, the iPhone should be in black screen). If redsn0w is used to detect, the device model in DFU will be displayed at the bottom of the interface< Method 2: enter DFU in any state (white apple or unlimited restart)
connect the device to the computer
Press and hold the on / off key and home key directly until the logo disappears. Just follow the above steps
method 3: do not press the key to enter the DFU (it is recommended to use the device with damaged key)
download the firmware of the device corresponding to the latest system version (do not use the firmware that Apple has closed for verification)
Download redsn0w and enter extra even more DFU IPSW in turn
at this time, redsn0w will prompt you that this is the operation of making DFU firmware, not the normal operation of restoring the system. The choice is
after selecting the latest official firmware, redsn0w will start making DFU firmware and wait for completion
Open iTunes, close redsn0w, shift + restore (for Mac, please use option + restore) and select the DFU firmware (prefixed with enter)_ DFU), wait for error 37 in the recovery process. At this time, the device is already in DFU mode.