Mining
source: benzinga.com
Cryptocurrency mining includes two functions, namely: adding transactions to the blockchain (securing and verifying) and also releasing new currency. Individual blocks added by miners should contain a proof-of-work, or PoW.
Mining needs a computer and a special program, which helps miners compete with their peers in solving complicated mathematical problems. This would need huge computer resources. In regular intervals, miners would attempt to solve a block having the transaction data using cryptographic hash functions.
Hash value is a numeric value of fixed length that uniquely identifies data. Miners use their computer to zero in on a hash value less than the target and whoever is the first to crack it would be considered as the one who mined the block and is eligible to get a rewarded.
The Bitcoin block mining reward halves every 210,000 blocks, the coin reward will decrease from 12.5 to 6.25 coins.
Earlier, only cryptography enthusiasts served as miners. However, as cryptocurrencies gained in popularity and increased in value, mining is now considered a lucrative business. Consequently, several people and enterprises have started investing in warehouses and hardware.
As enterprises jumped into the fray, unable to compete, miners have begun to join open pools, combining resources to effectively compete.
Bank of New York Mellon Corp BK 0.02% has been running an internal blockchain platform for U.S. Treasury bond settlements since early 2016, a Marketwatch report quoting Morgan Stanley said. The private nature of the platform has kept it out of the regulatory purview. Once the bank decides to roll it out to clients and use it commercially, regulatory oversight might come into the picture.
A complete mining kit consists of graphics cards, a processor, power supply, memory, cabling and a fan, which would cost between $2,400 and $3,800
The top three mining hardware, according to 99bitcoins.com, are Avalon6, AntMiner S7 and AntMiner S9.
Given that existing GPUs aren’t powerful enough, now miners are flocking to application-specific integrated circuits, or ASICs. To circumvent this shortcoming, Nvidia and AMD are said to be working on GPUs, which could be used specifically for the purpose.
The two companies who are dominant in consumer-grade mining hardware are Canaan and Bitmain. Bitmain, based in Beijing, does mining as well as manufactures mining hardware.
Mining Pools And Their Share Of Mining

most of the mining pools often support also other cryptocurrencies
Source: Block Chain
Mining pools are concentrated in China, which boasts of 81 percent of the network hash rate.
Why Mining Chips Are A Fickle Revenue Stream
For companies such as AMD and Nvidia, which have dominant positions in the gaming chip market, a focus away from their core business may not be a prudent course of action.
As seen, these companies may have to bring out new GPUs designed exclusively for this purpose to pose a real threat to the ASIC chips, which are predominantly manufactured by the Chinese, who are notorious for their low-cost market positioning. How viable is the spend on such exclusive chips is a moot point.
Additionally, national governments and exchanges are mulling over regulation of the whole realm of cryptocurrencies. Japan has recently introduced legislation to protect users after Tokyo-based Bitcoin exchange Mt Gox collapsed in 2014. Similarly, introducing taxation such as capital gains tax on Bitcoin sales may also impede the cryptocurrency industry.