What is mining futures
unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency 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
mining machine is a tool for procing and mining bitcoin
Bitcoin mining machine is a kind of computer used to earn bitcoin. This kind of computer generally has professional mining chips and works in the way of burning graphics card, which consumes a lot of power. It is one of the ways to get bitcoin that users download software from personal computer and then run specific algorithm to get corresponding bitcoin after communicating with remote server
mining is actually a competition of performance and equipment, and a competition of computing power among miners. Miners with more computing power are more likely to dig bitcoin. With the increase of computing power in the whole network, it is more and more difficult to dig bits with traditional devices (CPU, GPU). People have developed chips specially used for mining. Chip is the core part of mining machine. The process of chip operation will proce a lot of heat, in order to cool down, bitcoin miner is generally equipped with heat sink and fan
bitcoin is a kind of virtual currency. Bitcoin mining system is the process of carrying out mathematical operation for bitcoin network through computer hardware. Miners who provide services can get a reward, because the network reward is calculated according to the tasks completed by miners, so the competition for mining is very fierce
bitcoin mining started with low-cost hardware such as CPU or GPU, but with the popularity of bitcoin, the mining process has changed greatly. Nowadays, the mining activities are transferred to the field programmable gate array, and the hash speed can be achieved through optimization. The mining efficiency of this mode is very high
computing power of 5.6gh/s, the price of 3000 yuan "futures miner", so that you can back to the original in 30 days or so, and the cash miner back to the original time is about half a year, it can be seen that the temptation is full! However, in April, the author ordered "butterfly machine", the ancestor of "futures miner", on the US website. At that time, the book could be returned within 9 days, but now the goods have not been received, and the time of returning the book has become dozens of days
why? As more and more people join bitcoin, the difficulty of mining will increase and the income will decrease. Taking the equipment in my hand as an example, in early June, I can get 130 yuan of income from mining every day, but by the end of June, the income will be less than 50 yuan. Those futures mining machines are now back to the original time is 30 days, a few months later when you receive the goods... Think about it all feel terrible
therefore, returning to the original in 30 days is a cover up
the second trick: Celebrity investment / Tauren team
now there are many such futures mining machines in China, but they will play the banner of celebrity / Tauren to attract customers in the publicity. For example, in the early days, some people publicized that their technical team was composed of graate students from Tsinghua University / Chinese Academy of Sciences, in order to show that the mining machinery could be proced on time. Recently, the futures mining machinery company changed to claim that its partners included the founder of XX website, the former VP of XX website, and so on
but the problem is that no matter what kind of celebrity or coworker, they can't change the reality that the miner can't be delivered in a few months (the reason will be explained later)
barrier three: it is called
the real threshold of Miner: Avalon chip ordering
bitcoin miner is mainly composed of miner motherboard and Avalon chip. The former has long been published by Avalon miner's real inventor, Dr. pumpkin Zhang. Any electronic factory can download information and make it by itself. In addition, the overall cost of various electronic components is very low
the core Avalon chip is not so simple, it must be manufactured by a chip foundry such as TSMC. However, as Avalon chip is a kind of ASIC, unlike CPU and flash memory, it is a general-purpose chip, so the foundry must receive orders to start proction. This involves two thresholds: first, the order should start from 10000 pieces (the total price is about 5.6 million yuan), and second, it will take at least two or three months to deliver the goods after placing the order
this explains why the "futures miner" has to pay several months before delivery, and also explains why the "futures miner" manufacturers require you to pay in advance and do not allow a refund.