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⑴ Does anyone know what the copyright principle is for authenticating videos and pictures on the blockchain?

Basically, the principles are the same. Use Baopin.com as an example, Baopin.com video Blockchain certification is actually a DApp that first takes screenshots of the key frames of each minute of the video, then transcodes them into a series of unique numbers, and then uploads and records them to the Ethereum blockchain.

⑵ Are there any free videos for Dark Horse programmers’ blockchain courses?

There are many free videos for Dark Horse programmers

⑶ How to build a blockchain website

Websites are no longer mysterious and no longer a high-tech job. Ordinary users can also easily build relatively professional websites. Let me briefly introduce to you some procedures and precautions for building a personal website.
1. Domain Name
If you want people to visit your website, a domain name is essential. The domain name should be as short as possible and as easy to remember as possible, such as the .top domain name. Of course, there are not many domain names that are easy to remember and have characteristics. You need to consider this yourself, as long as you feel that there is a certain pattern or it is easy for users to remember. That’s it.
2. Space
To build a website, you must have a space, which is a place to store the website. For individual users, it is recommended to purchase a virtual host. When purchasing a web host, look at its service, speed, response time, etc. Generally, you can choose a service provider with a certain reputation.
Note: Domain name and space are currently good choices for domestic service providers such as Alibaba Cloud, Western Digital, and China Data.
3. Website program
Of course, the website program should be ready-made, because individuals do not need to compile a website program from scratch, and they do not have the ability. Nowadays, there are ready-made website management systems on the Internet. There are many such systems. You can choose based on your own comprehensive trial.
When choosing a website program, its versatility and secondary development must also be taken into consideration. For those that are not very versatile and are not conducive to the second phase of development, although they are powerful, they are not recommended because it will be very troublesome when the website needs to be designed with personalized functions after it reaches a certain scale. In addition, try to choose asp (asp.net) for programs. PHP, JSP, etc. are not particularly popular in China. Try to choose asp.net between asp and asp.net. After all, it is based on the .net architecture and is the development trend.
4. Website Design
After selecting the website program, you need to design the website according to your own needs. Generally speaking, it is best if there are professional artists and programmers to make modifications. However, individual webmasters may not necessarily have this condition and can choose intelligent website building from service providers.

⑷ What is blockchain video

Blockchain is a distributed shared accounting technology. What it wants to do is to enable all parties involved to Build trusting relationships. Blockchain can be roughly divided into two levels: one is the underlying technology of blockchain;It is the upper-layer application of blockchain, that is, the transformation, optimization or innovative application based on blockchain. What is the core meaning of blockchain? Our understanding is that the core meaning of blockchain is to establish data credit among participants, and through unilateral confrontation, create a complete opportunity for unilateral ecological joint protection under clear regulations. , this is a system. This kind of establishment can end the problems before the blockchain. Before the blockchain, it was impossible to achieve new sharing when sharing data. Even if it was oriented, it would only give you an interface. After the blockchain is created, the participants can realize the sharing of credit.
Blockchain has been applied in several fields. In the first field of digital assets, in addition to some points and check-in cards we have seen, it also includes various other assets, and there is a process of asset digitization. For example, the tokens of different crowdfunding projects on the Biying China platform.

The second field is the field of trade finance. Because the field of trade finance is originally a multi-link and multi-party participation method, blockchain can greatly improve the efficiency of the middle, making many substitutes. Effect.

The third area uses equity, which is company equity like some regional equity trading centers. The purpose is to facilitate equity-to-transactions and facilitate relative circulation. At present, the multi-center blockchain system can indeed improve efficiency and reduce costs.

⑸ Is PHP suitable for blockchain?

The concept of blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc. Since it is A model is not limited to language, it can only be said that which language is more suitable;

Blockchain requires a large amount of storage, calculation, and transmission. PHP is not suitable, especially PHP. efficiency issues;

If you want to study this, read more articles about blockchain:

Understanding of blockchain,

51 Lines of code to implement a simple PHP blockchain

⑹ How does blockchain make money? What is blockchain technology? Looking for video teaching materials

Comprehensive interpretation of blockchain technology
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When the market generally believes that blockchain technology is just a technology, the Ant Financial Technology Lab blockchain team gave a calm explanation: blockchain technology itself is not a specialized technology. It is integrated by many previous technologies. For example, it includes P2P networks, numerous nodes, cryptography, and some things similar to consensus. So from this point of view, if we purely use previous technologies, blockchain technology will almost be formed in the end.

⑺ How to successfully publish a blockchain short video

Once the blockchain video is uploaded to the chain, it cannot be changed. The changes will be invalid. Once the video on Baopin.com is operated, The chain cannot be deleted

⑻ What is the short video of blockchain

Blockchain is "efficient"Incompetent" "decentralized"... Blockchain short video is to put the original short video on the blockchain for certification, proving that it is original.

⑼ Can PHP write a blockchain?

Yes.

Use PHP code to define blocks:

class Block {

public $prevHash;

public $hash;

public $timeStamp;

public $data;

}

prevHash: Hash value of the previous block; hash: Hash value of the current block Hash value; timeStamp: the timestamp generated by the block; data: the data saved in the block; the fields prevHash, hash and timeStamp are called block headers in the blockchain, and the hash value of the block uses the SHA-256 algorithm. calculate.

(9) PHP development blockchain video extended reading

The actual use and significance of blockchain:

< p>Blockchain is a decentralized distributed ledger. What decentralization means is that there is no center, or everyone can be the center. This is different from the traditional centralization method. Distributed ledger means that data is not only stored on each node, but each node copies and shares the data of the entire ledger.

In addition, blockchain also has the characteristics of disintermediation and information transparency. For example, if we shop on Taobao, the fee we pay after placing the order is transferred to Alipay first. The money will not be transferred to the seller's account until we receive the express delivery and confirm receipt of the goods. In the blockchain, buyers and sellers can trade directly without any platform as a third-party certification agency to participate.

The system will publish the transaction information of buyers and sellers in the form of broadcast. All hosts will record and back up transaction data after receiving the information. If an error occurs in the orders produced by one machine, it will not affect the backup data of other machines.