Blockchain verification

1. The core advantage of blockchain technology is decentralization. It can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the common high cost, low cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
blockchain technology has three obvious characteristics: openness, security and uniqueness
openness mainly refers to that the stored information in the blockchain is completely open to all participants. This is mainly determined by the point-to-point network storage mode of the blockchain. In the blockchain network, each node can store a of the blockchain, and the uniqueness of the blockchain can ensure that the is exactly the same between different nodes
security mainly refers to that the information stored in the blockchain block is saved after being processed by digital encryption technology, and only the private key holder can decrypt the information to obtain the real information. Other members can only see and verify the integrity and uniqueness of information, but cannot see the real information
uniqueness is mainly e to the fact that the information on the blockchain cannot be tampered with once it is on the chain, so it is unique. Of course, the uniqueness here also includes the uniqueness in space, that is, all nodes have only one version of information, and also includes the uniqueness in time, that is, the historical data cannot be changed. This uniqueness also means that the blockchain maintains the characteristics of a unique main chain in the process of operation, and once other chains appear, it is a bifurcation. The emergence of bifurcation will lead to the plication of blockchain in two different spatial dimensions. Of course, to solve this problem, we need to set reasonable consensus rules to avoid
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

2. Specifically, the ID card and driver's license information entered by the user will be verified. The ID card and driver's license information that have passed the verification will be identified as valid, and the ID card and driver's license information that have not passed the verification will be identified as invalid. For more wonderful application problems, you can pay attention to the central area chain service platform for real-time understanding

3. The advantage of blockchain project authentication is that it can help consumers to mine, authenticate and apply the underlying blockchain technology; Help blockchain project investors correctly identify; Provide project guidance for blockchain projects.

4. Basically, the principle is the same. Take baopin.com as an example, baopin.com's video blockchain authentication is actually DAPP. First, it takes a screenshot of the video's key frames per minute, then transcodes it into a string of unique numbers, and then uploads and records it into the Ethereum blockchain.

5. You should fill in your personal identity information, real name system, nickname, mobile phone number, Alipay, face sweeping, and you need to pay one yuan to verify your identity.

6. At the global financial Technology Innovation Summit hosted by people's daily digital communication, Li Junshan, President of the national blockchain Research Institute and director of the blockchain Certification Center, said that there are three elements to judge whether a blockchain project is worth investing