Blockchain trust chain

1.

blockchain is an important concept of bitcoin. It is essentially a disintermediated database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography

broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code

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the evolution mode of blockchain is as follows:

& 9642; Blockchain 1.0 - digital currency

▪ Blockchain 2.0 - digital assets and smart contracts

▪ Blockchain 3.0 - Implementation of distributed applications in various instries

blockchain features:

1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system

2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work

The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid. Therefore, the data stability and reliability of the blockchain are extremely high

5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit

2.

Blockchain is a term in the field of information technology. In essence, it is a shared database. The data or information stored in it is characterized by "unforgeability", "trace in the whole process", "traceability", "openness and transparency" and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects

on January 10, 2019, the state Internet Information Office issued the regulations on the management of blockchain information services. In October 24, 2019, ring the eighteenth collective learning of the Central Political Bureau, general secretary Xi Jinping stressed that "block chain as an important breakthrough in core technology and independent innovation", "accelerating the development of block chain technology and instrial innovation". "Blockchain" has entered the public field of vision and become the focus of social attention

on December 2, 2019, the word was selected into the top ten catchwords of "biting words" in 2019

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Application of blockchain Finance:

since 2016, the major financial giants have also carried out blockchain innovation projects to explore the possibility of applying blockchain Technology in various financial scenarios. In particular, Puyin group took the lead in creating a "blockchain +" standard digital currency

standard digital currency refers to the process of assets identification, evaluation, right confirmation and insurance completed by a third party organization, which is written into the blockchain through careful digital algorithm to form the standard corresponding relationship between assets and digital currency, which is called standard digital currency

in order to realize the great leap forward development of blockchain finance, promote the new development of China's economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that has been struggling for generations, Puyin group will hold the Guiyang strategic development ceremony of Puyin blockchain finance in Guizhou on December 9, 2016

the meeting will discuss the realization of digital circulation of assets by blockchain, the financial transaction mode of blockchain, and the application of blockchain services and social public instry. This conference will mark the beginning of the application of blockchain finance and the change and development of the new financial ecology

3. Blockchain is a technology, but it is not a single technology, but the result of the integration of a variety of technologies, including cryptography, mathematics, economics, network science and so on. You can think of it as a distributed shared accounting technology, or as a database, but the database is jointly maintained by all nodes in the chain, and each node has an account book. Because the account books of all nodes are consistent, different nodes can trust each other, and there is no doubt about the data, so we all say that the blockchain has realized trust technically. For detailed professional technology, you can consult some professional technology companies, such as Jinbo technology, which focuses on the development of blockchain related procts, professional R & D team and perfect after-sales service, and you can consult by telephone.

4. Blockchain is an important concept of bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block.

5. Theoretically, so far, blockchain can represent the highest standard of credit
the block in the concept of blockchain is the information fast formed by the combination of bitcoin information and time stamp, and then every information fast is linked together to form a chain, that is, blockchain. Such chains can be verified with each other, can be added or removed at any node, and the update frequency is extremely fast. The wide range of distribution and the transparent and open data make the blockchain technology have its own credit attribute
the attributes of blockchain technology can be used to centralize the financial infrastructure, disintermediate the credit of traditional intermediate institutions, and evade the risk of financial instry by relying on the security of blockchain technology. However, these technologies can be realized because blockchain technology reflects the value of credit
for example, equity crowdfunding, the traditional way is to promote the completion of crowdfunding activities through equity crowdfunding platform, which is not only inefficient, but also investors can get less return, and the use of blockchain technology can quickly complete the transaction, so that investors can get richer returns, and these returns can be guaranteed, This is e to the distrust intermediation of blockchain technology
of course, as an emerging technology, blockchain must have some myths in the development process. For example, the underlying technologies and protocols of block chaining technology need to be improved, the time of chain formation is not long enough, and the centralization mode is not absolute enough. These problems may lead to the failure, elimination, bubble or new prosperity of the block chain technology. The emergence of this new technology is based on breaking the shackles caused by the lack of contemporary social credit China trade finance website)
the most important function of blockchain is to keep the records of information and not tamper with it. European crowdfunding uses blockchain technology to make crowdfunding project information more transparent.

6. Since its first appearance in 2009, the recent surge in the value of digital currency has triggered a discussion in the security field about the benefits of blockchain. Blockchain is a technology that can promote trust types that are extremely lacking in some digital transactions

nowadays, people are exchanging cryptocurrency at a higher and higher speed. But what makes cryptocurrency so trustworthy? The answer is simple: everyone has their own blockchain

what is blockchain technology, what are its benefits, and what is building digital trust

transfer the burden of trust

when we deposit money in a certain place, we believe it will not modify our account. Similarly, when we do retail business, we expect to get enough goods in exchange for the money we spend. By using blockchain, cryptocurrency providers have eliminated the trust burden of third-party financial institutions

blockchain is a peer-to-peer network database, which divides each transaction into its own block. In addition to cryptocurrency transactions, these blocks can contain other sensitive assets, such as identity information, patents, land ownership, medical data, and so on

what is blockchain technology, what are its benefits, and what is building digital trust

once a transaction is grouped into a block, a hash is assigned to the block, so that users can easily detect changes in data. A block may contain a hash of the previous block, creating a block. This allows security professionals to trace the block chain back to the first block or genesis block when an attacker attempts to modify a transaction. Any change will change the hash of the block, requiring potential threat participants to modify all blocks in the chain to complete the attack. For this reason, most cybercriminals think that it is unrealistic to attack blockchain and target

more benefits of blockchain

blockchain is distributed among all participating nodes in the network, so anyone who joins the network can access the whole blockchain. Participants can collectively evaluate the effectiveness of the whole chain, which means that potential attackers need to control more than half of the participants to change the final blockchain

the mechanism of consensus varies with the implementation of blockchain. For example, the previous hot fried currency uses work proof, which is a mathematical challenge. Participants must solve this problem before they can add a block to the chain. Other methods include proof of interest, proof of activity and selective endorsement. Each method has its own advantages and limitations

by checking the audit trail of the blockchain, participants can view the complete record of who owns a given asset, coin or token in the whole life cycle. In other words, they can track the source of assets and past transactions. Public key encryption further ensures non repudiation and confidentiality

there are no restrictions

nowadays, blockchain is often used as a currency ledger to facilitate smart contract and identity management. In addition, some projects are building database networks, which use distributed technology to serve supply chain, real estate, voting system, etc

after all, a technology actually guarantees trust between participants and provides visibility for sensitive transactions. As encryption becomes more and more popular and the need for verification increases, blockchain technology will also be greatly improved

7. Yes, jinwowo blockchain allows any two nodes in the chain to establish a connection without trusting each other's identities. Any node in the network can act as a "supervisor", so there is no need to worry about fraud.