Block chain unique ID number

1. 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.

2. Users get bitnation & quot; through blockchain on their official website It has a significant impact on the identity authentication system

3. 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

4. They will record proction information, logistics information, sales information and other data on the chain. It's equivalent to a person who has an ID card, but the ID card is a code. When you go in, you can see complete information. Family name, even "parents" can know, but also can't change! With this kind of blockchain for anti-counterfeiting traceability, even the labor cost of playing Jia is saved.

5. The difference between DAG blockchain and traditional blockchain is that the latter requires miners to complete proof of work (POW) to execute each transaction, and DAG blockchain can get rid of the restriction of blockchain to complete such operation. On the contrary, in the DAG blockchain, one transaction is followed by another, which means that one transaction can provide proof for the next transaction, thus ranking all the time. The connection between these transactions is DAG, just like blocks provide their names to the whole blockchain through hash value

in the traditional blockchain, each transaction takes a lot of time, while for DAG blockchain, the transaction time will become negligible

6. Although

has completed payment in the early days of mobile payment, it has been through the input of payment password or fingerprint. But now Ma Yun's Alipay has opened a quicker and more convenient way, that is, brush face payment. P>

Alipay has already done the payment method of face recognition through camera. We have to wonder that the progress of high technology brings people convenience and quick, which is really very attractive, so that people do not need to take out the mobile phone operation.

there is no need to worry about this. In fact, it's just like using a mobile phone to brush your face and open your mobile phone. You can't and can't unlock your mobile phone just by using people's photos. Of course, people who are curious about this will take photos to do experiments, but this photo is not their own

someone took out a picture of Ma Yun's face and scanned it. They thought that he would brush his face successfully or that some of Ma Yun's eggs would happen. However, no matter how many times he did it, it didn't work. It just showed that he failed to brush his face. In fact, the payment wire has been very stable, and the payment security we are worried about has been taken into consideration by the technical personnel and is now in use, so we can use it safely

7. The core of blockchain + is to graally eliminate all instries that need intermediary to do trust. At present, many central nodes and service platforms of the Internet are essentially trust mediators. Users can do shopping, traveling, ordering, paying and so on through the trust intermediaries such as Taobao, Didi, excellent step, American group, Alipay and WeChat payment.

but the Internet has never been static, and continuous evolution is the norm. In the future, people will have new trust dependence. Because the records of the blockchain can not be tampered with and are authentic, people's trust in the blockchain graally exceeds that of the centralized company. With the joint efforts of many blockchain enterprises and some traditional instries, the world will graally transition from a centralized trust driven to a system driven by algorithms and data. When the centralized trust intermediary is graally weakened, the system represented by blockchain will graally take over the operation mode of the whole world, and finally form the "disintermediated" system trust
therefore, blockchain is not only a technology, but also a story about the paradigm shift of world operation. Although the story is still a little far away, it has sprouted and initially developed

blockchain Internet will start from the instries most closely related to trust and traceability, and graally expand and expand until most instries are blockchain oriented and blockchain +
Puyin is a high-quality Tibetan tea asset, which is stored, identified, evaluated and authorized by three parties. It is a standard digital currency issued through encryption and digitization. Puyin implements the concept of "white paper on standard digital currency" in strict accordance with its operation guidelines, and sets a standard for asset digitization

8. To be sure, No. This is not a low configuration computer. This is the tablet configuration. You can understand it as the tablet with a keyboard,
if you don't know how to ask, please accept if you are satisfied

9. Nowadays, we can't follow the trend in virtual currency. It's too worrying.
I suggest that unless I know it very well, I'd better have a look. People with ability can make money by doing anything. Not necessarily.