Bitcoin qcoin

1. 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

2. 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

3. It needs to be forged and enchanted
in forging, you can choose to forge Demon Armor and spirit armor (no matter which branch is forged, Dragon Armor will be forged in the end). When skill points are added, as long as there are enough materials, these high armor can be forged
to forge a good equipment, you need to enchant it, as long as you have soul stone and enchant skills
help with forging: an old man in the backyard of the comrades in arms group can help with forging as long as he is given money. Or melt the equipment you don't need to make iron blocks for forging

Enchantment: you can learn the corresponding enchantment methods and improve the enchantment ability after resolving magic weapons.

4. And forging potion
if you want to get abnormal equipment,
wear alchemy plus clothes to make blacksmith potion
and then eat to make it
the simple way is to
use
console
to hit the blacksmith skill to 999999 or 999999 n

5. Both q-coin and bitcoin are virtual currencies, but bitcoin is not issued by specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of money circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million.

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's not the same thing, but it's all virtual money. Bitcoin rose from a dozen dollars to 1200 dollars, and then fell to about 600 dollars, which is the reason for speculation. Many countries do not recognize it as a legal currency, because the risk is really great. Bitcoin trading platforms in the United States are frequently attacked by hackers, resulting in investors' inability to trade normally, and there is no clear regulation and law. So if you don't understand it, you'd better know more about it first. Tianhou has a lot of bitcoin related news, which I read from there, You can have a look if you're OK.