Blockchain Fujitsu share

1. 1. What is the technology of blockchain?

2. In the era of Internet of things, data value is becoming more and more important, and the integration and innovation of Internet of things + blockchain will become a new instry trend. Using the secure and trusted execution environment of IOT terminal equipment, IOT equipment can be trusted on the chain, so as to solve the problem of identity confirmation and data right confirmation of IOT terminal, and ensure the deep binding of data on the chain and application scenarios. Blockchain can ensure data security and privacy protection, IOT network completes identity verification and access authorization, and has the characteristics of non tampering and traceability of data on the chain. Taking the blockchain operation mechanism as the market rule of data market right confirmation and transaction can solve the "pain point" of data privacy and make the standardized transaction of data market possible, which is the foundation of the deep integration of Internet of things from data collection to scene application

the development space of blockchain + Internet of things is broad
the blockchain + Internet of things instry and the global economic development complement each other, and the intelligent application scenarios are increasingly rich. The application of the Internet of things instry is mainly divided into three main lines: instry, consumption and people's livelihood. Its impact on the global economy is increasing and its development prospects are broad. Among them, the Internet of things of instry and consumption has basically developed synchronously, making joint efforts from the supply side and the demand side to help various instries realize the transformation and upgrading in an all-round way. In order to support the application of smart city, bike sharing and smart agriculture, the narrow band Internet of things (nb-iot) technology is deployed nationwide to build a three-dimensional urban information collection system based on the Internet of things. Blockchain enables a variety of instry applications, making the Internet of things further develop towards the deep integration of scene applications

with the help of blockchain service infrastructure and enterprise blockchain mole alliance, the Internet of things with distributed intelligence is built by combining blockchain with aiot and tee technologies. Blockchain integrates aiot, tee and other technologies to provide trust mechanism and privacy protection for distributed intelligent networks, promote in-depth online and offline integration, and spawn a large number of related basic network services.

3. Of course, this is OK
first of all, blockchain is actually a centralized database or a decentralized database, and all technical units are for better maintenance of the public database. Each node keeps a of data independently. Consensus algorithm is used to achieve the data consistency of the node's account book, and cryptographic algorithm is used to ensure the data can not be tampered, and the data can not be tampered and the security of data sending and receiving; Through the script system, the expression scope of account data is expanded
secondly, financial sharing center involves a large amount of financial data. We can combine the technical characteristics of blockchain with Financial Sharing Center. Next, I will combine the technical characteristics of blockchain with Financial Sharing Center
① distributed storage is a distributed database of the blockchain, and each node keeps a of the data independently. If this is combined with the Financial Sharing Center, The users who can join the "financial data on the chain" in the financial sharing chain are equivalent to the "nodes" in the blockchain network, and each user can keep a of the financial data separately, so as to achieve the purpose of sharing
② tampering is not allowed. A very important feature of blockchain technology is that the data cannot be tampered, To ensure the security of a data in the Financial Sharing Center, we need to consider the security as long as the financial data is involved.
of course, before doing the Financial Sharing Center, you must determine your specific needs, if necessary, first write a framework of the whole project, and then find a formal blockchain development team according to the needs, To help you develop this "Financial Sharing Center", we must pay attention to that before formal cooperation is reached, don't disclose the information of your project casually, in order to prevent the same kind from being copied.

4. Generally speaking, the essence of blockchain should be weak control, sub center, autonomous mechanism, network architecture and coupling connection. The essence of blockchain should be a new social structure in the era of information society, which is completely different from the instrial society. The five core points of blockchain are in common with sharing economy to some extent. The essence of the sharing economy is to abandon the old development mechanism, no longer focus on concentration, and instead use the decentralized social resources in a point-to-point way to let the participants participate in, and pay and benefit in different ways
the two Internet hotspots, blockchain and sharing economy, happen to have sufficient "cooperation space". With the development from theory to practice, the instry has made a lot of bold explorations about the two, and even some challenges to the traditional business model have emerged. In this way, the sharing economy with blockchain will be a new business model and a new subversion of interpersonal relationship. I plan to invest in the blockchain instry. After all, in the Internet era, I searched Guangzhou Xuanling Technology Co., Ltd. on the Internet and looked at the webpage. They are a company engaged in software blockchain intelligent contract development. There are many development cases, and the team is also strong.

5.

The term "smart contract" can be traced back to at least 1995 and was proposed by the prolific interdisciplinary legal scholar Nick Szabo. He mentioned the concept of smart contract in several articles published on his website. His definition is as follows:

"a smart contract is a set of promises defined in digital form, including the agreements on which the contract participants can implement these commitments."

Let's explore the meaning of his definition in more detail

commitment

a set of commitments refers to the (often mutual) rights and obligations agreed by contract participants. These commitments define the nature and purpose of the contract. Take a sales contract as a typical example. The seller promises to deliver the goods and the buyer promises to pay a reasonable price

digital form

digital form means that contracts have to be written into computer-readable code. This is necessary, because as long as the participants reach an agreement, the rights and obligations of smart contract establishment are executed by a computer or computer network

(1) when will the parties to the smart contract reach an agreement? The answer depends on the specific smart contract implementation. Generally speaking, the contract is discovered when the parties are committed to the execution of the contract by installing the contract on the contract host platform

(2) the real meaning of "execution" also depends on implementation. Generally speaking, implementation means active implementation through technical means

(3) computer readable code

in addition, the specific "digital form" required by the contract is very dependent on the agreement that the parties agree to use

protocol

protocol is technical implementation, on this basis, the contract commitment is realized, or the contract commitment is recorded. Which agreement to choose depends on many factors, the most important of which is the nature of the assets being traded ring the performance of the contract

again, take the sales contract as an example. Suppose that the participants agree to pay in bitcoin. The chosen protocol will obviously be bitcoin protocol, on which the smart contract will be implemented. Therefore, the "digital form" that the contract must use is bitcoin scripting language. Bitcoin scripting language is a non Turing complete, imperative, stack based programming language, similar to forth

smart contract

the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved" blockchain technology professional "pilot workstation of" smart learning workshop 2020 Xueshuo innovation workstation "launched by the school planning, construction and Development Center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system

6. The so-called blockchain E-contract refers to a new type of E-contract based on the traditional E-contract by adding blockchain technology to the contract signing, archiving, storage and other links to improve the security and effectiveness. Specifically, when signing an electronic contract, the identity of the contract signer can be verified with the help of blockchain technology to provide reliable digital certificate and electronic signature; After the contract is signed, the user's electronic signature, contract content and signing process can be filed and preserved through blockchain technology.

7. The real name authentication system of qubu app is connected with aliyunn. The information required to be filled in is only compared with alidatabase, and there is no security problem

8. It is a sharing platform for enterprises that need to be on the chain, because resources are open and shared by all enterprises on the chain.

9. A lot! Finance, project application and human resource management are all resources that can be shared. Please pay attention to "SMIC blockchain service platform" for details