1. It's hard to say. Anyway, lightcoin
mining is basically no longer profitable, so is
bitcoin. Some time ago, e to the sharp drop in the price of lightcoin, Zeus lightcoin cloud mining project has stopped mining. The mining of Laite coin is still so, and the mining of indivial investors is even more difficult. There are different opinions about the cost of bitcoin mining, some say 1500, some say 500. This has something to do with the performance and electricity price of the mining machine.
2. It's about 37 yuan
let me first introce the reward mechanism of bitcoin system
bitcoin can basically dig out a block every 10 minutes through system settings. The reward for each block is given to the miners who dig out the block. The miner who digs out the block is called the block miner. The block miner will record the legal transactions in the bitcoin network to the blockchain, so that the miner can receive the service charge for bookkeeping
there are two parts in the reward for the block Miner: one part is the reward given by the system, which is called coinbase reward (also known as system issuance reward), the other part is the reward for bookkeeping, which is called miner's fee. The coinbase reward started with 50 bitcoins. For every integral multiple of 210000 blocks, the coinbase reward will be halved. This is what we often hear about bitcoin mining reward halved in four years
at the present stage, the reward of coinbase is 12.5 bitcoins. At the present stage, the average transaction miner fee received by miners for digging out a block is about 0.1 bitcoin (not fixed), that is to say, the average reward received by miners for digging out a block is about 12.6 bitcoin
about 99% of miners' rewards come from the system's coinbase rewards. According to the bitcoin system, one block can be g out every 10 minutes on average. The number of new blocks that can be g out in one day is 144 (60 * 24 / 10 = 144). At present, the number of bitcoins that can be g out every day is 1800btc (144 * 12.5btc = 1800btc). With the miner's fee of about 0.1btc per block, the total reward for all miners in one day is about 1814.4btc

3. This is hard to say. Ant miner once said that its mining cost is only about 200 yuan. In September 2014, major mining machinery manufacturers generally believed that their mining cost was around 2000. To be specific, the following figure is the basic information of bitcoin mining Revenue:
4. Mining now? The cost of bitcoin is too high! Now that the situation is over, you might as well know about the Khan currency, which is a real virtual digital cryptocurrency. Now the price is only a few cents, which is very cost-effective. You can know about it
5. Bitcoin mining machine can be done for tens of thousands of yuan now, but the high electricity cost is not affordable by most of us. It is not recommended that bitcoin can choose some other currencies for mining.
6. After the price of bitcoin reached its peak in 2017, the price began to fall all the way below the mining cost price, and countless miners suffered serious losses. At present, the price of bitcoin has stabilized and rebounded in 2019, and the mining price is profitable. At present, many well-known blockchain leaders have begun to lay out mines. Xiaoju, the capital boss of cloud chain, said that the next two years will be the prime time for miners, Wall Street is speeding up its approach
7. First of all, it depends on the background of the company. Then it depends on the company. Where is the server and what is the mode? Violation of the law or not, if there is no problem with these, you can invest!
8. From the traditional promotion is divided into offline way, mainly about the promotion in the entity and the Internet is divided into different ways. The main promotion of blockchain is in e-commerce network promotion channels (database marketing, social media marketing, online advertising, mobile client, distribution platform, search engine marketing, resource cooperation marketing, classified information, etc.). The mode is always changeable, but it's always the same, no matter which promotion channels are only for a common goal: profit
the above is purely personal.