Virtual currency dog pet
2. Bitcoin can be copied, and lightcoin, Ruitai coin and vitality coin are all experimental objects
3. No, the source codes of different currencies are theoretically different
4. You can create counterfeit money without limit
5. It is possible in theory, but it may not work in practice.
in fact, virtual coin players with a little common sense all know that dog coin has the following fatal defects:
1. First of all, the code of doggie coin is completely copied from Leyte coin. The wallet of doggie coin in the early days has LTC words; Secondly, the founder of dogcoin left the development team in April 2014 and announced twice to quit dogcoin community; Thirdly, up to now, dogcoin still does not have a stable development team. Most of the online volunteers who joined dogcoin development team in the early days have quit. After the founder of dogcoin announced to quit dogcoin community again in March 2015, the development work actually stagnated
2. Dog money has no support of calculation power, that is to say, it has no real value, and its price performance is purely the result of speculative market game. In September 2014, in view of the collapse of computing power, doggy coin abandoned the mining mode and implemented auxpow, that is, to give doggy coin to any mine pool supporting this mechanism. This means that dog money is no longer the object for miners to profit from mining by purchasing equipment. The reason why the mine pool chooses to support dog coin is to get free dog coin< 3. There is eternal inflation. Under the background that most virtual currencies choose a fixed total amount, dog coin is set to increase by 5.2 billion every year, which makes it face serious inflation pressure. Because the new dog coin is given to the mine pool for free (the gift mechanism may be cancelled at any time), the miners will not have any feelings for the dog coin, they will only sell all the new mines. Inflation setting is an innovation of the founder of dog coin, but it completely violates the pricing principle of virtual coin: that is, under the premise of fixed total amount, through periodic halving, let the computing power and price reach a balance, so as to form a reasonable pricing mechanism. Dog money does not abide by the principle of fixed amount, and now even the computing power has been given up, indicating that it is not a standard virtual money
4. Illegal use of the logo registered by ultra Pro company may be prohibited at any time. As we all know, the dog coin borrowed the well-known Chaigou's head picture from the Internet. The "foundation" established a year later claimed to be trying to rush to buy Chaigou's head picture. The effect was just to comfort the fans. At present, ultra Pro company tacitly allows dog coin to borrow its logo, but it may be withdrawn at any time
5. Chinese speculators have completely dominated dog currency trading, and the trading volume of domestic exchanges accounts for 90% - 95% of the global total. It can be said that dog coin has been fully accepted by the Chinese, and the degree of nationalization is far higher than bitcoin, reborn coin, bitstock, and even higher than Leyte coin. The terrible thing is that Chinese speculative market is seriously separated from foreign community culture. The Chinese controlled the trading volume and chips, but never went deep into the foreign community of dog coin. They not only did not participate in any development of dog coin, but also completely ignored the tip and charity culture of foreign dog coin. Chinese speculators regard foreign communities as "idiots" who constantly create favorable conditions. Foreign communities regard Chinese speculators as the cancer of price manipulation. This is the separation of the interests of speculators and currency experimenters, which is inexcusable and irreconcilable
6. At the price of 1%, the main value of 100 billion yuan is 100 million yuan, and the annual value of 5.2 billion yuan of new mines is 5.2 million yuan. In the off-season, the global daily trading volume of dog coin is only 100000-150000 yuan. In case of systemic risk and large-scale cash out of users, it is impossible to have enough funds to resist the current price. So, where did the money go? The answer is that most of the locked up funds have been taken away by miners, and there is no possibility that these funds will return to the dogcoin market. If you want to get rid of the powder, you can only make a false appearance and cheat the new people to add fresh blood.
dogcoin is a virtual currency, similar to bitcoin, but the price is much lower. A dogcoin is only worth about 20 cents
3. Is virtual currency safe
The concept of virtual currency has penetrated into our life with spirit. Not only bitcoin, which was very popular before, but also virtual currency with different forms and concepts in our life. So how many types of virtual currency are there? Have you ever bought virtual currency before mobile phone payment mobile payment in some sense, it can be said to be the payment of virtual currency.
virtual currency has too many conceptual procts, but in our life, we can hardly leave the mobile phone because we can pay mobile phone in some public places, such as bus card, and some group receipts in work and study, which can be paid by WeChat or Alipay. Very fast and convenient to complete. This is one of the reasons why people choose virtual currency to pay{ RRRRR}
virtual investment is graally rising, and we should also be clear eyedat the beginning of the stock speculation in the last century, our country has also begun to have a lot of investment forms. But now we can't invest. The display is operated by virtual currency, but the network is virtual after all. Therefore, while investing in virtual currency, we still need to calculate the risk
123 130 103 104 132 124 127 128 135 138 139
145 154 162 173 179 190 192
201 216 219 271 234 240 246 278 280
301 312 324 342 361 391 319
402 421 423 426 435 471 486 491
521 543 534 576 602 608 630 631 642 643 648
712 721 756 786 802 813 831 867
901 907 912 917 921 957 975 971 978
013 014 016 021 024 041 082 086
the crown number of "Dushui wujiaoquan" is 140, 104, 410, 401, 014, 041, 145, 154, 415, 451
three sets of RMB offset watermark pentagonal number: Ⅴ Ⅰ Ⅳ, Ⅴ Ⅳ Ⅰ
Ⅰ Ⅳ, Ⅰ Ⅵ Ⅳ, Ⅳ Ⅵ Ⅰ, Ⅳ Ⅰ Ⅵ, Ⅵ Ⅰ Ⅳ, Ⅵ Ⅳ Ⅰ
Ⅰ Ⅳ Ⅶ, Ⅰ Ⅶ Ⅳ, Ⅳ Ⅰ Ⅶ, Ⅶ Ⅰ Ⅳ, Ⅶ Ⅳ Ⅳ Ⅰ
Ⅰ Ⅳ Ⅷ, Ⅰ Ⅷ Ⅳ, Ⅳ Ⅰ Ⅷ Ⅳ, Ⅷ Ⅳ Ⅳ Ⅰ
Ⅰ Ⅳ Ⅸ, Ⅰ Ⅸ, Ⅳ Ⅰ, Ⅳ Ⅰ Ⅸ ⅨⅠⅣ、ⅨⅣⅠ
ⅠⅤⅩ、ⅠⅩⅤ、ⅤⅩⅠ、ⅤⅠⅩ、ⅩⅠⅤ、 ⅩⅤ Ⅰ
Ⅰ Ⅴ Ⅵ
Supplement No.: ⅩⅨⅦ
the third set of RMB Yangtze River Bridge crown number table
123 234 345 456 567 678 789 890 901 012
135 357 579 791 913 246 468 680 802 024
124 125 126 127 128 129 130 134 136 137
138 140 145 146 147 148 150 156 157 < br />158 159 160 167 168 169 170 178 180 189
230 250 260 270 290 235 236 237 238 239
245 247 248 249 256 257 258 259 267 268
269 278 279 289 340 350 360 370 380 390
346 347 348 349 356 358 359 367 368 369
378 379 389 450 460 47 0 480 490 457 458
459 467 469 478 479 489 560 570 580 590
568 569 578 589 670 690 679 689 780 790
6 in each group
112 113 114 116 117 118 119 110
221 223 224 225 226 228 229 220
331 332 334 335 336 337 338 339 330
0 441 442 443 445 446 447 448 449 440
551 552 553 554 556 557 558 559 550
661 662 663 664 665 667 668 669 660
771 772 773 774 775 776 778 779 770
881 882 883 884 885 886 887 889 880
991 992 993 994 995 996 997 998 990
001 0 02 003 004 005 006 007 008 009
3 in each group
the red one is convex< The crown numbers of convex two corners are as follows (53 crown numbers):
123 234 345 456 567 678 789 890 901 012 135 357 579 791 246 468 680 802 024
124 125 127 128 129 130 134 568 247 569 578 589 670 690 689 780 790 112
113 114 115
679 680 117 118 119 110 221 223 224 225 226 220
Hong San convex (565 crown numbers): 137 138 139 140 145 146 147 148 149 150 156 157 158 159 160 167 168 169 170 178 180 189 190 230 235 236 237 238 239 240 245 247 248 249 250
256 257 258 259 260 267 268 269 270 278 279 280 289 290 340 346 347 348 349
350 356 358 359 360 367 368 370 378 379 380 389 390 450 457 458 459 460 467
469 470 478 479 480 489 490 560 568 569 570 578 580 589 590 670 679 689 690780
790 907 (supplementary number)
convex five crown numbers (198 crown numbers):
012 013 014 016 021 024 041 053 082 086 098 103 104 120 123 124 127 128
130 132 135 138 139 145 154 162 173 179 190 197 201 214 216 219
234 240 243 246 271 278 280 301 312 316 317 324 341 342 361 391 319 341 402
421 423 426 435 465 471 486 491 521 532 543 534 576 602 608 612 613 623 630
631 642 643 648 680 708 712 721 756 786 789 798 802 806 813 831 860 867 892
901 907 908 912 913 917 921 931 957 975 971 978 987
red two convex crown number (26) 4849.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.68.69.70.71.72.99 (Supplement)
lithography has watermark, The crown numbers are as follows (34 crown numbers):
156 514 541 146 164 461 416 614 641 097 147 174 471 417 714 741 148 184 481
418 814 841 149 194 491 419 914 941 150 105 501 510 015 051
carbon black 5-element crown number combination
123 234 345 456 567 678 789 890 901 012
135 357 579 791 913 246 468 680 802 024
124 125 126 127 128 129 130 134 136 137
138 140 145 146 147 148 149 150
fluorescent ten yuan crown number
number of crown number
IV VI 00000001 ~ 70000000 70000000
V x 03300001 ~ 100000000 967000000
V IV 00000001 ~ 100000000 100000000
v v v 00000001 ~ 100000000 100000000
V VI 00000001 ~ 100000000 100000000
V III 85250001 ~ 100000000 147500000
IX 34670001 ~ 35440000 (supplement number) 770000
IV V 07375001 ~ 100000000 The third set of RMB was issued by the people's Bank of China on April 20, 1962. Equal to the price of the second set of RMB, and mixed with it in the market. Compared with the second set of RMB, this set of RMB cancels the 3-yuan note and increases four kinds of metal notes: 1 jiao, 2 jiao, 5 jiao and 1 yuan. The six characters of "people's Bank of China" in banknotes were written by Mr. Ma Wenwei. The two seals on the ticket are "President's seal" and "vice president's seal". The back of the note is printed with the words "people's Bank of China" written in Chinese Pinyin, Mongolian, Uyghur, Tibetan and Zhuang. The third set of RMB was issued on April 20, 1962 and stopped circulation on July 1, 2000, which lasted 38 years.
First measure the length, width and thickness of the iron plate. Multiply to get volume. The unit is centimeter. Multiply that by the density of iron, 7.86 grams per cubic centimeter
For example, the size of iron plate is 500 * 100 * 10cm
is 500 * 100 * 10 * 7.86 = 3930000 g = 3930 kg = 3.93 T
an object on the earth's surface is not only affected by the gravity of the earth, but also by the inertial centrifugal force e to the rotation of the earth. The resultant force of these two forces is called the weight of the object. Traditionally, people think that the gravity of an object is its own weight
extended data:
there are many explanations for body weight. For example, weight is gravity; The weight of an object is the gravity of the earth; Weight is the force of gravity applied to an object. Weight is the force exerted on a vertical suspension or horizontal support when the object is at rest. Some of the above terms emphasize that weight is gravity, gravity is a vector, and its essence is gravity
Some people emphasize that gravity is not a vector, weight is the magnitude of gravity, it is a scalar. There is also a law of measurement for the definition of weight. These different definitions are just different interpretations. There is no right or wrong
under the gravity of the earth, weight and mass are equivalent, but the measurement units are different. The substance with a mass of 1 kg was subjected to 9. The weight of a force of 8 Newtons is called 1kg. It usually replaces weight with a unit of mass, which is implicitly multiplied by the acceleration of gravity. In the past, in China, gold and beams were used as weight units. Pounds, ounces, carats, etc. are also used as units of weight
The commonly used mass units are UG, Mg, G, kg, t, etcBitcoin system is composed of users (users control the wallet through the key), transactions (transactions will be broadcast to the whole bitcoin network) and miners (through competitive computing to generate a consensus blockchain at each node. The blockchain is a distributed public authoritative account book, including all the transactions in the bitcoin network)
bitcoin miners manage the bitcoin network by solving the problem of workload proof mechanism with certain workload - confirming transactions and preventing double payment. Because hash operation is irreversible, it is very difficult to find the random adjustment number of matching requirements, which requires a continuous trial and error process that can predict the total number of times. At this time, the workload proof mechanism will play a role
when a node finds the solution matching the requirements, it can broadcast its results to the whole network. Other nodes can receive the new data block and check whether it matches the rule. If other nodes find that they really meet the requirements (the operation target required by bitcoin) by calculating the hash value, then the data block is valid, and other nodes will accept the data block
Nakamoto compares the generation of bitcoin by consuming CPU power and time to the consumption of resources by gold mines to inject gold into the economy. Bitcoin mining and node software mainly initiates zero knowledge proof and verification transactions through peer-to-peer network, digital signature and interactive proof system
each network node concts broadcast transactions to the network. After these broadcast transactions are verified by miners (computers on the network), miners can use their own work proof results to express their confirmation. The confirmed transactions will be packaged into data blocks, and the data blocks will form a continuous data block chain
every node of bitcoin will collect all the unconfirmed transactions and gather them into a data block. The miner node will add a random adjustment number and calculate the sha256 hash value of the previous data block. The mining node tries again and again until it finds the random adjustment number so that the hash value is lower than a specific target
mining difficulty
in order to keep the speed of data block generation at about one every ten minutes, the difficulty of generating new data blocks will be adjusted regularly
if the speed of data block generation is accelerated, the difficulty of mining will be increased; If the speed of data block generation becomes slower, the difficulty will be reced. After every 2016 data blocks are generated (about two weeks), bitcoin system will automatically recalculate the mining difficulty of the next 2016 data blocks at the generation speed of the latest data blocks
and the difficulty basically determines that the SHA-256 hash value of an effective block header should be less than a certain value, that is to say, the hash value must just fall within the target interval to be effective. The smaller the target interval is, the lower the hit probability is. In other words, the more difficult it is to dig
e to the explosive addition of ASIC computing equipment, the mining difficulty is increasing geometrically, with an average annual increase of about 3%, which makes the mining work of ordinary indivial miners extremely difficult
for the above content, please refer to the network - bitcoin mining machine
A, Beijing Opera B, Henan Opera C, Sichuan opera
2. Where are oracle bone inscriptions written A)
A, tortoise bone B, stone C, tree D, shell
3. The middle of the five mountains is (b)
A, Huashan B, Songshan C, Hengshan
4. Why didn't compass be called "compass" in ancient times B)
A. facing the north, facing the south, facing the north, facing the south, facing the north, facing the north B)
A, Hubei B, Hunan C, Shandong
6. The largest peninsula in Europe is in (b)
A, Eastern Europe B, northern Europe
7. After the broken filament was put on again, the light was compared with that before the filament was broken (b)< In which country is the International Olympic Philatelic Federation established B)
A, Swiss B, Chinese C, American D, German
9. Chickens are made of eggs (b)
A, B from egg white, C from egg yolk, and C from the mixture of egg white and egg yolk C)
A, oral B, top C, wing D, tail
11, and when drinking Baijiu, it is best (A).
A, heated drink B, direct drink C, drink with cola
12, short for IMF (a)
A, International Monetary Fund B, international economic and Trade Organization C, International Atomic Energy Organization
13. The famous name of Halley's comet comes from (b)
A, place name B, person name C, company name
14. Generally speaking, wearing the ring on the middle finger means (c)
A, married B, engaged C, just in love D, which can represent any meaning
15. The first color feature film in China is (V)
A, Huo Yuanjia B, blessing C, a pair of embroidered shoes d Yellow ribbon
16. The use of liquefied petroleum gas should be (a)
A, ignition before gas supply B, gas supply before ignition C, fire off before gas supply
17. Which country was Qu Yuan from in the spring and Autumn period B)
A, state of Qi B, state of Chu C, state of Yan D, state of Zhao
18. The earliest narrative poem in China is (a)
A, Peacock Flying Southeast B, Mulan CI C, Lao Can's travels
19. Which of the nine planets is the coldest C)
A, Jupiter B, mercury C, Pluto D, Neptune
20. It is (b) that controls human balance in human brain< The first written constitution in the world is (a)
A, the constitution of the United States B, the constitution of the United Kingdom C, the constitution of the United Nations D, the Charter of France
22. Which scenic spot does Li Bai's "flying down 3000 feet, the galaxy falling nine days" refer to A) When was the Gregorian calendar adopted in China B)
A, after the Cultural Revolution B, after the 1911 Revolution C, after the new culture movement D, after the founding of the Qing Dynasty
24, the tide on the earth is e to (a)
A, Earth Moon attraction B, earth rotation C, earth revolution D, yellow red angle
25< The boundary river between China and Korea is (c)
A, Songhuajiang B, Nenjiang C, Yalujiang
27. The largest commercial bank in China is (a)
A, instrial and Commercial Bank of China B, Huaxia Bank of China C, Agricultural Bank of China D, postal savings of China
28. The side opposite the right angle in an isosceles right triangle is called (b)
A, opposite B, chord C, cosine D, hypotenuse
29. Which is the biggest treasure house of classical art in China A)
A, Dunhuang Mogao Grottoes B, Leshan Giant Buddha C, Potala Palace D, terracotta warriors and horses of Qin Shihuang
30, the hardest part of the human body is (b)
A, calf bone B, tooth C, back bone D, head bone
31. What is camel hump used to store for itself C)
A, food B, water C, fat D, excess nutrition
Media coverage & lt; Four members of a family were killed at the same time; Many netizens have paid attention to the murder case. This heinous case happened in yueliu administrative village, Renzhai Township, Jieshou City, Anhui Province. The victims were a couple (husband Cao and wife Liu) and their two young children. When they were found, they were all lying in a pool of blood, without vital signs
at the beginning, it was Liu's colleagues who found something wrong. Liu works in a local supermarket, usually very punctual. On the day of the incident, Liu's colleagues found that she didn't come to work and couldn't get in touch, so they went to Liu's home to find her. As a result, Liu's colleagues found a lot of blood in Liu's home through the window, so they reported the case
here, we may never know the motive of Cao killing his family and then committing suicide. However, this matter can give you a lot of room for reflection< in this world, there is no barrier that can not be overcome. In the face of difficulties and setbacks, there must be solutions. There is really no need to go to extremes. Only people live, there is always a way out