Double UU pool address

1.

After the computing power of the whole network has been improved to a certain extent, the probability of getting rewards is too low, so that some geeks on "bitcoin talk" can develop a method that can combine a small amount of computing power and operate jointly, and use this method to build websites

in this mechanism, no matter how much computing power an indivial miner can use, as long as he participates in mining activities by joining the mine pool, no matter whether he has successfully mined effective data blocks, he can get a small amount of bitcoin reward through his contribution to the mine pool, that is to say, many people cooperate in mining, and the bitcoin reward is shared by many people according to their contribution

as of January 2019, the top five bitcoin pools in global computing power are btc.com, pool, antpool, flush pool, and f2pool. At present, about 70% of global computing power is in the hands of Chinese miners

extended data:

handling charge:

bitcoin miners will charge a small amount of fees for most transactions, the main purpose of which is to prevent people from sending a large number of boring small transactions and wasting network resources. At present, most of the handling charges for each transaction are & T 3647; 0.0001/kb (0.0001btc / KB). In fact, after 0.9.0, the default handling charge will be reced to & 3647; 0.00001/KB(0.00001 btc/KB)

because the amount of data occupied by most transactions is less than 1 kilobyte, generally speaking, the amount of data is less than 3647; 0.00001 (0.00001 BTC / KB) is enough. At the same time, in the future, when the bitcoin block rewards are less, the service charge will become the main source of miners' income, and the service charge of bitcoin will be related to the number of bytes occupied by the transaction

at present, the calculation standard of service charge in bitcoin system is not mandatory, so users can not give any service charge when the transaction is in progress

however, most miners usually give priority to the transaction with higher handling charges when building data blocks, so that they can get higher remuneration when mining is successful. Therefore, the transaction without any handling charges may take a long time to be processed and incorporated into the blockchain

in addition, e to the block capacity limit of 1MB and the recent increase in bitcoin transaction volume, the handling charges have increased significantly, and the waiting time for the transaction to be confirmed has also become much longer

2.

Mining is perhaps one of the most important components of the bitcoin ecosystem. Miners need to solve complex mathematical problems, so as to ensure the smooth implementation of the transaction. These problems are so complex that they are difficult to solve even for extremely powerful computers. Computers need work and luck to solve these mathematical problems, just as miners dig underground. The chance of solving this problem correctly is about one in 13 trillion

bitcoin mining has two purposes. Firstly, by solving mathematical problems, bitcoin miners can verify the transaction information, so as to ensure the security and reliability of bitcoin payment network. Miners are the people who ensure that transactions are accurate and that there is no "double payment."

Secondly, when the computer solves these complex mathematical problems on the bitcoin network, the system will generate new bitcoin, which is similar to the process of mining gold from the ground. The reward is called "block reward", and after the event called "halving", its amount will be periodically halved. The newly discovered concept of bitcoin is an important part of bitcoin protocol. The bitcoin obtained by the miners is brand new and has never been in circulation before

since miners will eventually sell the bitcoin, it is also an important source of supply and liquidity. As chainalysis reports, many digital currency exchanges rely on miners to receive bitcoin and increase their liquidity. Typically, exchanges get about 88% of bitcoin from other exchanges, and bitcoin miners are the largest source of the remaining percentage. As you can imagine, there is fierce competition between exchanges to receive bitcoin directly from miners

further enlarge the map, most of the mining activities are only carried out in four provinces, the first two provinces are Xinjiang and Sichuan, accounting for nearly half of all bitcoin mining in China. Electricity prices are cheap and the weather is cold in these areas. This helps to keep mining profits and equipment cool ring the 24 / 7 operation and maintenance period of bitcoin mining

but this is nothing new for digital currency issuance. For many years, China has been a major market for bitcoin miners e to its cheap electricity and abundant resources. Bitmain, f2pool and Canaan are all located in China

whether this is a negative or positive message depends on your point of view. But for decentralized, distributed, unlicensed networks, geographic regions across multiple entities are more healthy for the entire ecosystem

3. The main reason is that the distribution mode of bitcoin is different: according to the operation mode, the common bitcoin pools are as follows: PPLNs, PPS, DGM, P2P ool, etc.

PPLNs: (the purest Group Mining) full name is pay per last n shares, which means "pay income according to the past n shares", which means that once all miners find a block, You will allocate the currency in the block according to the proportion of each person's own shares Share means share)

in PPLNs mode, luck is very important. If the mine pool can find many blocks in a day, then everyone's dividend will be very large. If the mine pool can't find any blocks in a day, then everyone will have no income

PPS: pay per share mode --- this mode is to pay for each share immediately. The expenditure comes from the existing bitcoin funds in the mine pool, so it can be withdrawn immediately without waiting for the block generation or confirmation. In this way, the operation behind the scenes of the pool operators can be avoided. This method reces the risk of miners, but transfers the risk to the pool operator. Operators can charge fees to make up for the possible losses caused by these risks

in order to solve the problem that PPLNs sometimes has a high profit and sometimes has no profit, PPS adopts a new algorithm. PPS estimates the daily available mineral resources of the mine pool according to the proportion of your computing power in the mine pool, and gives you basically fixed income every day

do you feel that this is a stable job? In fact, in order to avoid the risk of loss, the PPS model often charges a high handling charge of 7% - 8%< DGM: Double geometric method. It combines PPLNs and geometric reward type, so that the pool operator can avoid part of the risk. The pool operator will collect part of the excavated currency in a short time, and then return it to the miners with normalized value, such as charge and discharge of electric capacity. If you are lucky, you will get less money for each block and more money for poor luck

175btc: the mining node of 175btc works on a shares chain similar to bitcoin blockchain. Because there is no center, it will not be attacked by DOS. Unlike other existing mine pool technologies, each node's working block includes bitcoin paid to the owner of shares in the early stage and the node's own bitcoin. 99% of the reward (50btc + transaction cost) will be distributed equally to miners, and the other 0.5% will be awarded to those who generate blocks

bitcoin home has a detailed introction.

4. The story is like this. In the past, there was a terrible story in every university. It said that there was something unclean in school A. every time when the 15th anniversary, Lu Xun's eyes would move in front of the school. All the teaching buildings would be cut off. The stairs would change from the original 13th level to the 14th level. The water from the water dragon head of the laboratory would turn red. And the toilet at the end of the first floor, as long as someone went in So a group of disbelieving children made an appointment to go on an expedition on the 15th day. At 12 p.m., they arrived at the gate of the school on time. Lu Xun's eyes looked to the left. They wrote down that they were afraid that when they came out, they couldn't remember if they had moved. They came to the classroom and turned on the switch. Isn't it on“ It's a lie. " One boy complained, "look again." Came to the stairway "1, 2, 3... 13 yes, it's 13 steps?" The children were a little suspicious of the truth of the legend, so they came to the laboratory again. The tap turned on the white water and it came out, "it's boring, we're coming for nothing!" The initial excitement is half gone. Finally, they came to the toilet. Although the girl said she didn't believe it, she still didn't dare to go in. So she let little C, who just said she wasn't afraid, go in and look at the table. Two minutes later, the boy came out and said, "it's all deceitful." the children broke up in a bad mood. When they went out, a doorman found them and told them how they could stay at school so late. The children ran away, and little B paid special attention to the stone statue at the door. Yes, his eyes still looked to the left, which was "deceptive." he muttered, "Hey, little B? Little c went out with you last night. Why didn't he come back? " The next morning, little C's mother called to ask. Little C didn't go to school, and the children vaguely felt wrong, so they told their teachers and parents about the adventure in the evening, and they returned to the school accompanied by alts“ what? Our eyes of Lu Xun are always looking to the right. " The headmaster listened to the children's narration and said strangely“ But when we came here yesterday, we looked to the left. "When we went out, we really looked to the right..." but there was electricity yesterday. "" we had a blackout here yesterday... How could you turn on the lights? "“ And the stairs The children quickly ran to the stairway "1, 2, 3... 12?"“ Our stairs are always 12 steps. "“ No way“ And the lab, "a child reminded." yes, the lab "and the others came to the lab. there was a dark red mark under the tap they had opened yesterday“ It's blood. "“ That... Little c went to the toilet yesterday... "Everyone felt a sense of inexplicable fear." let's go and have a look. "The headmaster also realized the seriousness of the matter... Opened the door... Little C's body suddenly appeared in front of everyone's eyes. Because of panic, his eyes were wide open, his throat was cut, and his bloody internal organs were scattered in the pool that had been dried up..." ah... "Little C's mother fainted on the spot In the past, several teachers rushed out immediately to vomit... Little B was also stunned. One second before he fainted, he caught a glimpse of little C's watch pointer stopped at 1:00... When little c entered... By the way, there was no guard on the night when they went to explore... Turn this post to more than five forums, which will not be haunted by demons and will realize a wish. Those who don't reply often... Sorry, I'm helpless

5. 1. Card, sand, stone, system double experience time can be superimposed, that is effective
2, 20% up 160
3, maximum level? what do you mean? Those methods only affect your experience, and will not affect your rank after you transfer. If you save 20% of your experience before you transfer, you will be promoted to 160 directly. This will not change, and it has nothing to do with how many times your accumulated experience is at that time. After the level will need to slowly practice

6. This is used to modify the mobile phone GPS, you need to cooperate with the power bank to use it.

7. There is no HD, and the DVD version of rayfile network disk download link is provided. You need to install the RaySource client, create a new task, and paste the following address in the download link (URL) to download
Part 1:
fs2you: / / =
Part 2:
CD1:
fs2you: / /
CD2:
fs2you://

8. U -- single seal
UU -- double seal '
unmarked -- no seal
please refer to the above answers, thank you!