Data link blockchain
blockchain is a shared database. Blockchain is a new application mode of computer technology, such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and so on
main features:
1. Decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage
2. Openness. The foundation of blockchain technology is open source. In addition to the private information of all parties to the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface
3. Independence. Based on consensus specifications and protocols, the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention
4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes
5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously
extended data
application direction:
1. Payment: for example, in terms of time, traditional cross-border remittance takes 10 minutes or several days, while blockchain cross-border remittance can achieve remittance in seconds e to decentralization. In terms of convenience, traditional cross-border remittance needs to wait until the next day after 19:00, while blockchain cross-border remittance only needs one mobile phone to realize all-weather remittance
2. Sharing medical records: the medical data blockchain sharing platform can achieve many application scenarios. Patient history data and other information can be linked, and medical history and image data can be viewed by personnel entering the system. These medical data can also be used for modeling and machine learning
source: network blockchain
however, in view of the characteristics of electronic data, such as reprocible, easy to tamper, difficult to confirm, difficult to provide evidence and so on, electronic evidence urgently needs a professional, reliable and judicial credible technology to effectively solve the trust problem of electronic evidence
blockchain has the advantages of decentralization, distributed accounting, encryption and traceability, which can ensure the integrity and authenticity of data on the chain. Once it is tampered or forged, it can be found. At the same time, because the blockchain has the characteristics of Distributed Accounting, even if the data on indivial nodes are deleted, other nodes can still save the data completely, ensuring the normal operation of the whole blockchain storage system
in 2018, the supreme law of the people's Republic of China clearly pointed out in the provisions on Several Issues concerning the trial of cases by Internet courts that the electronic data submitted by the parties can be verified by electronic signature, trusted time stamp, hash value verification, blockchain and other technical means of evidence collection, fixation and tamper proof, or by electronic forensics storage platform authentication, The Internet court should confirm. This is the first time that the legal effect of blockchain technology in electronic data is affirmed from the judicial level
based on the above advantages, blockchain is naturally suitable for electronic data storage. The introction of blockchain can effectively solve the authenticity and legitimacy of electronic evidence and make the process of electronic data storage more reliable. By using blockchain technology, easyprotection can solve the whole link trustworthiness problems of electronic data, such as generation, certificate storage, notarization and evidence proof; After being linked, each judicial node in the security chain is used to ensure the credibility and security of the data; In litigation, evidence goes directly to the Internet court to improve the efficiency of rights protection.
Musk's main purpose is to promote bitcoin better. He has promoted bitcoin to the outside world many times before it is well known that musk likes bitcoin. He not only uses his own money to buy bitcoin, but also uses bitcoin as the reserve capital currency of his company. This time, musk changed his nickname to currency master, obviously in order to better promote bitcoin. Musk also said earlier that it would consider receiving bitcoin to trade Tesla in the future. It is also driven by musk that the price of bitcoin has been rising since last year, reaching record highs repeatedly
for example, when you are hospitalized and discharged from a hospital, you need to queue up to go through a lot of proceres, such as printing the flow details ring hospitalization, for example, going through the discharge settlement proceres, for example, going through the medical insurance settlement, and so on. Without half an hour, these proceres can't be completed. Because once you go through the discharge proceres, in fact, it is equivalent to the end of the hospital proceres. When it comes to medical insurance settlement, it is not only the hospital system, but also the medical insurance system. At present, the data systems of the two departments can not be directly connected, so they need to queue up to handle it by themselves
the blockchain can provide a distributed accounting mode. Under the protection of cryptography knowledge, you can not only share data with other companies, systems and departments, but also ensure that the data is owned by you. Through distributed accounting, you can achieve cross department cooperation and real-time settlement
after being linked, all information is open and transparent, and any information can be found in the block.
now it can be determined that at least the top 10 Internet companies in China have started this project. In the 2018 China Financial Information Service Development Summit Forum released yesterday, Liang Shidong, vice president of ant financial services group, mentioned that at present, China's financial technology mainly appears in the application layer, and there is still a gap between the underlying technology and developed countries, especially how to give full play to the value of artificial intelligence, cloud computing and blockchain in serving the real economy and preventing risks, It also needs to be explored by all walks of life
therefore, it is possible that blockchain is still a child in China and needs time to develop. After all, we haven't thought of how to use it more effectively, and the technology is not very mature.
the concept of entity blockchain may become the trend of the future society. It's still unknown
at present, bitcoin is the most closely related to blockchain. Want to learn more and more than some news of block chain, you can pay attention to some new media. For example, Sohu, Baijia, mustard circle and so on. Foreign websites, such as CCN and coindesk, all have huge information sources. Hope to adopt