Tianping blockchain
A: blockchain is an encrypted database chain, that is, the transaction data in multiple timestamps / events are encrypted and linked together, and the data can not be tampered with or shared
2. Performance and logic:
A. external operation forms: bank deposit and withdrawal, remittance, account in and out, shopping, currency issuance, capital transaction, etc
B. internal logic processing (software program): after human operation, the data will be encrypted first and then stored in the database. After the program, the data will be divided into regions, such as the data in the event and time stamp will be classified and put together into a region. Multiple events and data in timestamps are associated to form a blockchain. The encrypted data can be shared, but not tampered with
C. forms of sharing: querying personal information, auditing, etc. Query permission / sharing permission: different permissions can query different data. For example, the bank can query the information of all people, and the indivial can only query the indivial
3. Most of the examples are different, but the logic processing ideas are the same, but the implementation methods and operations are different
4. Blockchain: it has the characteristics of encrypted data, tamperable data and shared data
5. Blockchain Technology: the technology of encrypting, partitioning and sharing data with editing programs
there are suggestions for guidance
application fields: finance, it, commodity sales, online shopping, etc.
The application prospects of blockchain are mainly in the fields of finance, Internet of things and logistics, public services, digital rights and insurance
1. Blockchain has great potential applications in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can eliminate the third-party intermediary link and realize the point-to-point direct docking
2. Blockchain can also be naturally combined in the field of Internet of things and logistics, which is considered as a promising application direction of blockchain. The establishment of credit resources in the blockchain can double improve the security of transactions and improve the convenience of Internet of things transactions. It can save time and cost for the application of intelligent logistics mode
3. Blockchain is closely related to people's proction and life in public management, energy, transportation and other fields. The decentralized and fully distributed DNS service provided by blockchain can realize the query and resolution of domain name through the point-to-point data transmission service between nodes in the network
4. Through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works and ensure the authenticity and uniqueness of ownership. After the works are confirmed on the blockchain, the subsequent transactions will be recorded in real time to realize the full life cycle management of digital rights, and can also be used as a technical guarantee in judicial evidence collection
5. In terms of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized
extended data:
the core technology of blockchain
1. Consensus mechanism, through the voting of special nodes, completes the verification and confirmation of transactions in a very short time; For a transaction, if several nodes with unrelated interests can reach a consensus, it can be considered that the whole network can also reach a consensus. The goal of blockchain consensus mechanism is to make all honest nodes keep consistent blockchain views
2. Asymmetric encryption requires two keys for encryption and decryption, which are public key and private key. The public key corresponds to the private key. The public key is used in the process of data encryption, and only the corresponding private key can be used to decrypt; On the contrary, the private key is used to encrypt the data, and only the corresponding public key can be used to decrypt the data
According to the white paper, the global borderless Libra coin has three cores: blockchain based, real asset guarantee and independent association governance. In other words, Libra coin is a "stable currency" guaranteed by the real asset reserve. Each Libra coin will have a basket of currencies or assets of corresponding value for trust endorsement, which is supervised by the founding members of Libra coin Association, and each founding member is responsible for running a verifier node. Facebook believes that there are still 1.7 billion alts in the world who are not exposed to the financial system and cannot enjoy formal financial services, and the current financial transaction costs are too high, so this pattern needs to be broken. According to its assumption, Libra is a stable currency and a super sovereign digital currency. By issuing "Libra coin", we will explore the establishment of a simple, borderless currency and financial infrastructure for billions of people
Libra coin is safe as a virtual currency. To this end, Facebook also launched a series of programs to solve security problems. Facebook launches cryptocurrency system & quot; Libra & quot;. Libra system is operated and managed by Facebook and more than 20 partners. Each partner participates in the operation in the form of initial verifier node, and they share a transparent transaction classification account to reflect all activities on the network
Therefore, the security of Libra as a virtual currency need not be considered. I believe that the advent of Libra as a virtual currency will bring a new innovation to our worlddoesn't match, because Facebook has great ambition, but it has great disadvantages. It doesn't pay attention to its own development, and it pays more attention to its interests
Facebook is ambitious. It will continue to introce new technologies on desktop and mobile devices, and these new procts and applications will be promoted all over the world Facebook is not satisfied with its ability to communicate and interact on social networks, information publishing and Internet. It seeks to use its huge global network and user base to expand penetration to other areas and gain greater benefits and influence< however, Facebook has many problems, especially in information security, which has been widely criticized
it is a kind of digital currency based on Facebook social network and global user group, which is actually a super currency. Second class sovereign currency. Please click the input image to describe a lot of analysis and comments. If Facebook's "Libra currency" project is implemented, it will not only have a huge impact on the global digital economy (especially Internet Applications), but also may subvert the banking instry and seriously affect fiat money countries' credit currencies and sovereign currencies will face a series of other problems, and the consequences are unimaginable
First of all, Libra, as a virtual currency, is the anchor of a basket of currencies and promises to exchange with legal tender at a ratio of 1:1. This is not only better than the network "cryptocurrency" not linked to fiat currency, but also more stable than the stable currency linked to single currency, which is an upgraded version of digital stable currency. Its mission is to "build a simple, borderless currency and financial infrastructure for billions of people."; Libra is a stable currency supported by a basket of currencies (reserves) and managed by an independent association (registered in Switzerland) running on the blockchain platform