Blockchain distributed hard disk

1. IPFs is a coin that can be mined with hard disk. There are many coins that can be mined with hard disk. There are several factors that determine the mining income: hard disk space, broadband speed, purchase cost and electricity charges.

2.

blockchain is a decentralized distributed ledger database . The advantage of this distributed ledger is that buyers and sellers can trade directly without any intermediary. Everyone has a backup, even if you lose this, it will not be affected

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blockchain application field

1, financial field

blockchain has potential huge application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment

2. The Internet of things and logistics

blockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management. This field is considered as a promising application direction of blockchain

3. The data stored on the public welfare field

blockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision

4. In the field of insurance

in terms of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized

3. I have also heard the teacher of Yingfu College of Finance and economics give lectures. The fixed issue limit of bitcoin is 21 million, and no additional issue will be made

in the first year, dog coin issued 100 billion pieces, and there was no upper limit. Through the continuous inflation of the market, from the perspective of the overall currency price expectation, dog coin is not as good as bitcoin

in addition, dog coins are highly centralized, with the top ten owners accounting for 41.35% of all the tokens in circulation, which can easily lead to price manipulation

the second is the loose community governance model, which contains a huge crisis behind the rise. It is also hard to predict the extent to which the dog bubble will expand or when the bubble will burst.

4.

A good idea of blockchain for players is to have a virtual currency that can be used in all games. Theoretically, blockchain can achieve this at the technical level, but considering the differences between different game manufacturers and different games, the possibility of practical operation is still very small

the meaning of blockchain is as follows:

from an academic point of view, blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is essentially a decentralized database

If many people still don't understand it, let's take an example. Suppose the environment: if you have an account book at home, you can keep it. In the past, it was Mom and dad who gave you the salary and let you record it in the account book. In the middle, if you are greedy and want to buy something delicious, the record on the account book may be less than ten yuan. This is just an example. Xiaobian believes that when we were young, we all wanted to take some money from Mom and dad's pockets

the way to solve the problem with blockchain:

if you use the way of family mobilization to keep accounts, the above problems will not exist, because you are keeping accounts, your father is also keeping accounts, and your mother is also keeping accounts. They can see the general ledger, you can't change it, and your parents can't change it. In this way, you can't help the father who wants to buy cigarettes and the greedy one

In other words, blockchain

this distributed digital ledger

records all the transactions that have occurred

and have been unanimously recognized by the system

every block is an ledger

which can not only record transaction information

but also have more functions

multi-functional "blockchain"

which can not only record every transaction, It can also be programmed to record almost everything of value to humans: birth and death certificates, marriage certificates, deeds of ownership, degrees, financial accounts, medical history, insurance claims, votes, food sources, and anything else that can be coded

each block is like a hard disk, which saves all the above information and encrypts it with cryptography technology. The stored information cannot be tampered with

note: there is nothing in the world that cannot be decrypted? It's just a matter of how long it takes to crack the secret. If there is a spear, there is a shield. The contradictory world is an eternal law! We need to learn to use the Internet to search for many problems in order to get twice the result with half the effort. The meaning of blockchain is here for you