The authenticity of virtual currency
if you don't understand digital currency, you'd better not touch it. The water of digital currency is very deep. Digital currency is even more chaotic, deception is repeated. If you are interested, you can first learn about the crowdfunding project token on coin Ying China platform.
the model adopted is the same as Vicat, Baichuan, Morgan and mark, which can be basically confirmed as MLM
if the model is the same as bitcoin, Leyte and Ruitai, it is relatively reliable; There is also to see if this digital currency is open source currency.
1. First of all, we should have a clear understanding of the patterns used on coins of different years when we identify the authenticity of one yuan coins. Because the technology of making coins belongs to state secrets to a certain extent, it is difficult for counterfeiters to master all the technologies. Therefore, generally speaking, the patterns of fake coins have some flaws, or the lines are very rough, or the strokes are not standard, etc
2. Secondly, the authenticity of one yuan coins can also be judged from the color. The color of real one yuan coins is nickel white, while the color difference of fake coins is obvious because of the different materials used. Whether it is stainless steel counterfeit coins or other types of counterfeit coins, the color is either too bright or gray. In addition, if you have a certain understanding of the manufacture of coins, you will know that the center lines of the front and back patterns must be symmetrical
Finally, we can judge the thickness of a dollar coin from its own, but normally, we need to pay attention to it consciously and grasp the thickness of the real coin accurately. Generally speaking, e to the limited technology of making fake one dollar coins, it is not easy to grasp the thickness, so the phenomenon of uneven thickness is very common 
extended information:
the patterns of RMB coins in circulation are very fine, with uniform quality and bright luster. In particular, the national emblem, ears of wheat and other places are very clear, while the effect of forged coins is relatively vague. Take the circulation coin of 1 yuan as an example:
1. Pattern: the stamen, rice ear, national emblem, Tian'anmen Square and other patterns of real 1 yuan coin are clear and concave convex, while the counterfeit coin is rough and fuzzy. In addition, the front and back patterns of the real 1 yuan coin are in the same direction, even if there is an error, it is very small; However, the front and back patterns of counterfeit coins are usually in different directions, which makes them asymmetric
2. Edge of round frame: the thickness of real coin is uniform and smooth, while the thickness of counterfeit coin is usually uneven, and the edge is cut and worn
3. Material: the real 1 yuan coin is made of nickel clad steel, which can be sucked up with a magnet, otherwise it must be counterfeit; In addition, a lot of fake 1 yuan coins are made of lead or aluminum. When they are painted on white paper, clear marks like pencil lines will appear. Of course, some counterfeit coins with or without lead may not be detected by this method
4. Stacking: the real 1 yuan coins are very flat when they are stacked together, but the fake coins are stacked in the real coins because of the different thickness, which will proce a feeling of disharmony
extended data source: Internet_ Coins