What is the blockchain of QQ coin

1. In a narrow sense, blockchain is a kind of chained data structure that combines data blocks in chronological order in a way of sequential connection, and it is a distributed account book that can not be tampered with and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data
nowadays, the mainstream digital currencies are basically developed based on blockchain technology. Blockchain is the underlying technology of digital currency. The domestic tea based digital currency Puyin is developed based on blockchain technology.

2. The term blockchain comes from bitcoin, and it is also the underlying technology of bitcoin. In short, it is an account book with incentive system. In an open transaction, everyone can keep an account according to their computing power, keep the account book updated and the transaction going on, and those who successfully keep an account will be rewarded (bitcoin), Through such self motivation, the operation mechanism that does not rely on any company or organization is called blockchain

3. What is the double flower problem

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the problem of double spending is that a sum of money can be spent twice, three times and many times. Why has the double flower problem become such an important issue in the bitcoin system

the reason is that bitcoin is a virtual currency. It is virtual, presented in the form of code, and can be copied. Once the code vulnerability is broken, the same bitcoin can be recycled. In this way, the "money" of bitcoin will become very weak

let's think about it. If a sum of money can be spent many times, and you have 500 yuan, you can buy a 500 yuan dress, which can be recycled, and then buy a pair of 500 yuan shoes. In this way, can money be called money

therefore, when Nakamoto set up the bitcoin system, all his technical means are basically around solving the "double flower problem" of

, to protect bitcoin as a kind of currency, its own function as a means of payment

in fact, the problem of double spending is not a problem in our present centralized world, because with banks, the settlement of money transactions is through banks, which is very safe. If you have problems, you can go to the bank directly

however, in the decentralized world, without such a central institution as banks, it is necessary to ensure that a sum of money can only be spent once. How to eliminate the "double spending problem" under the premise of decentralization is a difficult problem

let's just say, why is Nakamoto so persistent in pursuing "decentralization" and asking for trouble? No, he hopes to solve some social problems through decentralization, the most important of which is the inflation caused by the excessive issuance of money by the authority

so, let's sum up his logic: centralized currency issuance leads to inflation - so we need to achieve Decentralization - decentralization will face many problems, the biggest problem is the double flower problem - so we need to solve the double flower problem - how to solve the double flower problem

here, Nakamoto introces the concepts of utxo and "timestamp" to solve the double flower problem

4. Compared with most of them, they are not reliable. Even if they are reliable, they can't make a lot of money. Thank you very much_ ∩)O

5. 1) The points you ask can be exchanged for qq COINS
in the top corner of the home page, you can click to enter
1q coins -
points requirements: 369 points
level requirements: 6
reputation requirements: unlimited
maximum exchange: 5 pieces / person
2q coins -
points requirements: 699 points
level requirements: above level 7
reputation requirements: unlimited
maximum exchange Exchange: 2 copies / person
reputation requirements: unlimited
5qb -
points requirements: 1699 points
level requirements: above level 8
reputation requirements: unlimited
maximum exchange: 1 / person
reputation requirements: unlimited
(2), QQ coins are given to all Tencent games, (Q flying car, Q Three Kingdoms, etc.)
(QQ flying car)
1.
you need to equip your character with "red lantern" props

2.
you can take part in props competition or speed race, and you can win
awards
after each competition
3.
equipped with "lantern" props, you will consume one lantern for each competition
4.
every day your number of lanterns will automatically increase to 20, so you must use up the lanterns of the day, or you will lose money
(QQ Three Kingdoms)
as long as you complete the task of borrowing the east wind, you will have the opportunity to obtain Deputy materials, brocade bag and 1000 experience, and even have the opportunity to obtain Q coin and green diamond, QQ show and QQ space
Awards
procts
1. At the beginning of the activity, players can find NPC "Zhou Yu", "ZHUGE Liang" and "Sima Yi" conversations in the main cities of various countries to borrow the east wind
2. Players can borrow Dongfeng if they pay the
Insurance
certificate
gold of 1000 Three Kingdoms coins. Players can reach the altars of various countries (within the scope of novice Village) within 5 minutes after borrowing Dongfeng, and then they will win the
prize
reward
3. In the process of sending the east wind, the balloon may explode. After the explosion, the player needs to get the east wind again. As long as the player participates in the activity time, the number of times is unlimited
4. After the task is completed, the player will get the system returned security certificate, gold and experience Award. At the same time, we also have the opportunity to obtain the Deputy materials, brocade bag, Q coin, green diamond, QQ show and QQ space prizes
5,
if the player gets the prize of Q coin, green diamond, QQ show and QQ space, please click I want to
exchange the prize for
collection
and
exchange
exchange
(3) Yuanbao in paipai can be exchanged for QQ coin
the units of Yuanbao are Yuanbao and silver coins, 1 Yuanbao = 1000 silver coins. There is no need to exchange between silver coins and Yuanbao. The system will convert them automatically, that is, if 1000 silver coins are accumulated, the system will display 1 Yuanbao automatically
the purpose of patting Yuanbao
1. Exchange QB, doll and other gifts
2
3. Participate in all kinds of interesting entertainment in the community

6.

Since Xiaolu entered the circle, people often ask Xiaolu what is the difference between q-coin and bitcoin. Emmm, although the answer to this question is very simple, it's a bit troublesome to explain it. So Xiaolu should write an article today to explain it well

I don't know what fawn said. Do you understand? If you have any questions, please leave a message and communicate with Xiaolu

7. It should be a kind of empty coin project,
empty coin: in short, it is a free gift, and the issuer distributes the token to the investors according to certain rules and strategies
airdrop is not an innovation, and it is often used on old coins in the past. Many of them belong to a kind of capital game. Currency prices are manipulated and plummeted, and most of the inced investors are cut leeks. For empty coin is earned, but whether to invest in positions, also need rational analysis!