区块链技术大数据,基于区块链的大数据确权

❶ What is the relationship between blockchain and big data storage?

The relationship between blockchain and big data storage is as follows:
1. Data security: Zone Blockchain allows data to truly flow "with confidence"
With its trustworthiness, security and non-tamperability, blockchain allows more data to be liberated. Let’s use a typical case to illustrate how blockchain promotes the generation of gene sequencing big data. Blockchain sequencing can use private keys to limit access rights, thereby circumventing legal restrictions on individuals' access to genetic data, and utilize distributed computing resources to complete sequencing services at low cost. The security of blockchain makes sequencing an industrialized solution, enabling global-scale sequencing, thus promoting the massive growth of data.
2. Data openness and sharing: Blockchain ensures data privacy
The government holds a large amount of high-density and high-value data, such as medical data, population data, etc. The openness of government data is a general trend and will have an immeasurable impetus to the development of the entire economy and society. However, the main difficulty and challenge in data openness is how to open data while protecting personal privacy. Blockchain-based data desensitization technology can ensure data privacy and provides a solution for data openness under privacy protection. Data desensitization technology mainly uses encryption algorithms such as hashing. For example, the Enigma system based on blockchain technology can calculate data without accessing the original data, which can protect the privacy of data and eliminate information security issues in data sharing. For example, company employees can safely open access to their salary information and jointly calculate the average salary within the group. Each participant is informed of his relative position within the group but not of the compensation of other members.
Data HASH desensitization processing diagram
3. Data storage: Blockchain is an immutable, full-historical, strongly endorsed database storage technology
Blockchain technology, through the network All nodes in the network participate in calculations and verify the authenticity of their information to reach a consensus across the entire network. It can be said that blockchain technology is a specific database technology. So far, our big data is still in a very basic stage. Trusted blockchain data based on the consensus of the entire network is non-tamperable and full of history, which also enables the quality of the data to gain unprecedented strong trust endorsement. It also brings the development of database into a new era.
4. Data analysis: Blockchain ensures data security
Data analysis is the core of realizing data value. When conducting data analysis, how to effectively protect personal privacy and prevent core data leakage has become the primary consideration. For example, with the popularization of fingerprint data analysis applications and genetic data detection and analysis methods, more and more people are worried that once personal health data is leaked, it may lead to serious consequences. Blockchain technology can prevent such situations through multi-signature private keys, encryption technology, and secure multi-party computing technology. When the data is hashed and placed on the blockchain, the data isWord signature technology allows only authorized people to access data. The private key ensures data privacy and can be shared with authorized research institutions. The data is uniformly stored on the decentralized blockchain, and data analysis can be performed without accessing the original data. This can not only protect the privacy of the data, but also safely provide it to global scientific research institutions and doctors for sharing. The basic health database will bring great convenience to solve sudden and difficult diseases in the future.
5. Data circulation: Blockchain protects data-related rights and interests
For individuals or institutions’ valuable data assets, blockchain can be used to register them, and transaction records are recognized and transparent by the entire network. , traceable, clarifying the source, ownership, use rights and circulation path of big data assets, which is of great value to data asset transactions.
On the one hand, blockchain can eliminate the threat of intermediaries copying data and help establish a trustworthy data asset trading environment. Data is a very special commodity, which is essentially different from ordinary commodities. It mainly has characteristics such as unclear ownership and "it is owned after seeing it and copying it". This also determines that the transaction method using traditional commodity intermediaries cannot meet the needs of data. Share, exchange and trade. Because the intermediary center has the conditions and ability to copy and save all the data flowing through it, this is extremely unfair to the data producers. This threat cannot be eliminated by relying on promises alone, and the existence of this threat has also become a huge obstacle to the flow of data. Based on decentralized blockchain, it can eliminate the threat of data copying by intermediary centers and protect the legitimate rights and interests of data owners.
On the other hand, blockchain provides a traceable path and can effectively solve the problem of data verification. The blockchain jointly participates in the calculation and recording of data through multiple nodes participating in calculations in the network, and mutually verifies the validity of their information. It can not only prevent information counterfeiting, but also provide a traceable path. By stringing together the transaction information of each block, a complete list of transaction details is formed. The ins and outs of each transaction are very clear and transparent. In addition, when people have doubts about the "value" of a certain block, they can easily review historical transaction records to determine whether the value is correct, and identify whether the value has been tampered with or recorded incorrectly.
Everything is guaranteed on the blockchain, and big data will naturally become more active.
The tokens of crowdfunding projects on the Biying China platform are all developed based on blockchain technology, and relevant information will be recorded on the blockchain.

❷ How to understand the essence of Jinwowo blockchain technology + big data

Jinwowo blockchain is an underlying technology guided by big data. It can be understood as a A public accounting mechanism (technical solution), it is not a specific product.
The basic idea is to ensure the authenticity and non-tamperability of information by establishing a set of public ledgers on the Internet, and all users in the network jointly record and verify accounts on the ledgers.
The reason why the name is "blockchain", as the name suggests, is because the blockchain storesThe structure of stored data is a chain composed of "storage blocks" on the network. Each block contains all the information exchange data in the network within a certain period of time. Over time, this chain grows.

❸ Big Data and Blockchain

This story still has to start with Bitcoin

Bitcoin, an electronic cash system, is simultaneously disintermediated ( Electronic cash between individuals does not require the intervention of a trusted third-party intermediary) and is decentralized (maintained by an institution) (both parties to the transaction can complete transactions without establishing a trust relationship)
< br /> Hash function: Convert an arbitrarily long string into a fixed-length output (the calculation process cannot be too complicated). As long as the input string changes slightly, the output of the hash function will be completely different.

Blockchain: Divide large things into many blocks for storage. As long as one thing is tampered with and the data below are different, it will be discovered

Uses blockchain (data structure hash function) to ensure that the ledger cannot be tampered with, uses digital signature technology to ensure that only you can use your own account, and uses p2p network and POW consensus mechanism to ensure decentralized operation.

Blockchain is a method that uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, and uses cryptography to ensure data transmission and access security. A new distributed infrastructure and computing paradigm.

Three elements:

The essence of blockchain is a distributed ledger, a kind of database. The blockchain uses a hash algorithm to ensure that information cannot be tampered with, uses public keys and private keys to identify identities, and collectively maintains a reliable database in a decentralized and disintermediated manner.

The differences between big data and blockchain are mainly reflected in the following aspects.

(1) Data volume. Blockchain technology is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms. The amount of data processed by the blockchain is small and has a meticulous processing method. Big data manages massive amounts of data, which requires breadth and quantity, and the processing methods will be rougher.

(2) Structured and unstructured. Blockchain is a block with a rigorously defined structure. The chain composed of pointers is a typical structured data, while big data needs to process more unstructured data.

(3) Independence and integration. In order to ensure security, the blockchain system's information is relatively independent, while the focus of big data is the integrated analysis of information.

(4) Direct and indirect. Blockchain is a distributed ledger, which is essentially a database, and big data refers to theIn-depth analysis and mining is a kind of indirect data.

(5)CAP theory. C (Consistency) means consistency, which means that any read operation can always read the result of the previously completed write operation. That is, in a distributed environment, data at multiple points is consistent. A (Availability) refers to availability, which refers to obtaining data quickly and returning operation results within a certain time. P (Tolerance of Network Partition) is partition tolerance, which means that when a network partition occurs (that is, some nodes in the system cannot communicate with other nodes), the separated system can still operate normally. CAP theory tells us that a distributed system cannot meet the three requirements of consistency, availability, and partition tolerance at the same time. It can only meet two of them at the same time. As the saying goes, "You can't have your cake and eat it too." Big data usually chooses to implement AP, and blockchain chooses to implement CP.

(6) Basic network. The underlying infrastructure of big data is usually a computer cluster, while the infrastructure of the blockchain is usually a P2P network.

(7) Source of value. For big data, data is information, and value needs to be extracted from the data. For blockchain, data is an asset and the inheritance of value.

(8) Calculation mode. In the big data scenario, one thing is assigned to multiple people. For example, in the MapRece computing framework, a large task will be decomposed into many subtasks and assigned to many nodes for calculation at the same time. In the blockchain scenario, multiple people are allowed to do one thing repeatedly. For example, many nodes in the P2P network record a transaction at the same time.

❹ How Jinwowo combines blockchain and big data

To put it simply, blockchain and big data are both hot topics, and the development of big data has been around for a long time. Blockchain has now become a huge industry, and combining the developing blockchain technology with big data will produce different effects. From a technical perspective, big data technology exchanges trust for computing resources, while blockchain technology exchanges computing resources for trust, so the combination of the two has set off a new wave of information security.

Based on the characteristics of blockchain distributed data storage, decentralization, non-tampering, traceability, and trustworthiness, Jinwowo Network Technology Group has established a strong blockchain research team. Currently, Jinwowo has applied for 3 blockchain patent technologies. In the future, Jinwowo Group will conduct in-depth research on big data services with blockchain as the underlying technology, and strive to build credit relationships between individuals and enterprises on the platform, accumulate credit data, and provide solutions for enterprises' business model design and precision marketing. , Promote the development of the Internet and even the entire social credit system.

❺ Blockchain and Edge Computing What is Blockchain and Edge Computing Analysis

1. Blockchain: Blockchain is a concept of Bitcoin. It uses a block chain data structure to verify and store data, and uses a distributed node consensus algorithm to generate and update data. Utilize cryptographic methods to ensure the security of data transmission and access. It is a new distributed infrastructure and computing method that uses smart contracts composed of automated script codes to program and operate data. It is essentially a disintermediated database.

2. Edge computing: Edge computing is the ability to use an integrated platform of network, device computing, storage, etc., close to the source of data to provide corresponding services nearby. The main feature of edge computing is to provide services based on a regional model near the data end. Since the demand end and the service provider end are very close geographically, it is easier to provide fast and high-quality services, thus gaining popularity from Internet companies. .

3. Edge computing does not actually appear in the past few years. As early as 2003, IBM cooperated with content distribution network CDN and cloud service provider AKAMAI in edge computing. , and edge computing has also begun to be cautiously applied on a large scale in recent years with the development of blockchain and 5G technology. Since edge computing needs to connect many devices scattered around, it also needs to form a distributed network. This This structure is similar to the decentralization of blockchain, so in many cases, edge computing and blockchain can be well combined.

❻ How does blockchain technology fundamentally solve the problem of data authenticity

Chongqing Jinwowo analyzed and solved the problem as follows:
First, use the district By predicting and analyzing all data chains in the blockchain, regulatory authorities can promptly discover and prevent possible systemic risks. The decentralized characteristics of the blockchain can eliminate information islands in big data risk control and improve risks through information sharing. control.

Secondly, the distributed database of blockchain can improve the problem of poor data quality in big data risk control, resulting in diversified data formats, fragmented data forms, missing valid data, and incomplete data content. The problem is solved.

Finally, blockchain can prevent data leakage issues. Since the blockchain database is a decentralized database, any node's operation on the data will be discovered by other nodes, thus strengthening the monitoring of data leaks.

❼ Understand the relationship between blockchain, big data, cloud computing, and Bitcoin

Blockchain is an tamper-proof, full-historical database storage technology, a huge The block data collection contains the entire history of each transaction. With the rapid development of blockchain applications, the data scale will become larger and larger. Different business scenarios make the data integration of blockchain further expand the scale and enrichment of data. sex. However, what the blockchain provides is the integrity of the ledger, and the ability to analyze data is relatively weak, while big data has massive data storage technology.And flexible and efficient analysis technology will greatly enhance the value and use space of blockchain data.
Digital currency is a form of expression represented by blockchain 1.0, mainly Bitcoin; as a virtual currency system, the total amount of Bitcoin is limited by the network consensus agreement, and no individual or institution can Changes and modifications to the supply and transaction records, so after the Bitcoin network has been successfully running for many years, the blockchain, as the underlying technology that supports the operation of Bitcoin, is essentially an extremely clever distributed shared ledger and peer-to-peer value transmission technology. It will have a very large potential impact on finance and even all walks of life.
Blockchain and cloud computing, the research, development, and testing of blockchain technology involve multiple systems. Time and capital costs will hinder the breakthrough of blockchain technology. Software development based on blockchain technology, It is still a high-barrier job. Cloud computing services have the characteristics of elastic resource scalability, rapid adjustment, low cost and high reliability, which can help small and medium-sized enterprises to develop and deploy blockchain quickly and at low cost. The integration of the two technologies will accelerate the development of blockchain technology. The blockchain technology is mature and promotes the rapid expansion of blockchain into the financial industry.

❽ What is the relationship between blockchain and big data?

Blockchain and big data are both hot topics. Many people discuss them together and hope to conflict with more hot

points. Big data has become a huge industry long before the development of blockchain. Although blockchain is in the early stages of the

industry, many technologies and business models are still being explored.

In view of the relative maturity of the big data industry, we use big data as a starting point to study how blockchain technology interfaces with all aspects of the big data

industry.

The big data core industry chain can be roughly divided into the following three parts:

Product part: Including big data software product-related industries such as big data basic software and big data application software.

Data part: including data sources (data collection, data provision), data circulation (data transactions, data sharing

) and other industries directly related to data.

Services: related to big data infrastructure services (data storage, data transmission, data cleaning, data desensitization

, etc.), big data analysis services and big data application services services.

01 Product Section

The combination of software products and blockchain should be based on technology. Big data technology and blockchain technology have similarities: they

are distributed architectures.

But they also have obvious differences: the use of distributed technology in big data technology is computing resources -Utilizing the computing resources of multiple

machines and distributing tasks that cannot be handled by a single machine to multiple computers, each

machine. By processing different tasks, it integrates multiple computing resources to form powerful data processing capabilities.

Using distributed technology in blockchain allows multiple entities to trust each other. Each mainframe participates in the operation of the entire blockchain through the computers it controls

. Each computer runs basically the same task, and the entire blockchain

can achieve mutual trust between multiple entities through repeated redundant calculations.

From a technical perspective, big data technology uses trust to exchange computing resources, while blockchain technology uses computing resources to exchange trust. Due to the differences between the two, it is technically difficult to find a suitable collision point between big data and blockchain.

02 Data Part

In the various formats of the data part, the blockchain can find its place.

The chain is of little significance. However, if multiple entities are involved in data collection and data provision, blockchain can

come into its own.

In order to solve the trust problem between multiple entities, each entity broadcasts its own collected data to all consumers

and the hash of that data Values ​​are stored in the blockchain. Based on the hash value on the blockchain, each subject in the blockchain

can verify whether the complete data it received has been tampered with. Blockchain traceability and non-repudiation

make data provided by multiple parties more credible. At the same time, this method also helps maintain the integrity of big data

.

In the data circulation industry, blockchain can play a greater role. In the big data circulation industry, big data itself

is a digital asset. The transaction of digital assets can be realized through the blockchain. Additionally,

decentralized big data transactions implemented on the blockchain can reduce raw data connections. In a decentralized trading platform, only buyers and sellers

have access to the original data; on a centralized trading platform, the data intermediary serving as the trading center usually has access to the original

data. This increases data leakage and assets. Risk of Loss.

03 Service Part

In big data services, as digital assetsThe concepts of data and assets in service capabilities and data transactions are the same

and can be traded.

Blockchain can play an important role in the trading of such digital assets. At the same time, there are many new technologies that are constantly changing the blockchain, such as homomorphic encryption. Homomorphic encryption is an important technology that combines blockchain and big data services

. Homomorphic encryption can truly transform data service functions into digital assets without requiring the big data service provider to copy the original data in the service. risk.