PoW workload proved, PoS is proof of interest, DPoS prove commission of equity, but how PoC is a kind of consensus mechanism?
PoC Proof of Capacity is an abbreviation called to prove the capacity mechanism, it is a POW consensus mechanism, it is hard as a consensus of participants, it is characterized by sacrifice performance to get safe and reliable, very much reduced relative POW security and trust costs, lower cost to solve the global trust and security, almost does not consume power resources, and can be shared and reused trust ecology.
Currently, most digital currency mining uses a POW (workload proof). Just BHD, Burst mode using the POC mining (Yottachain not on the main network lines, YTA currency for the time being is not in the column).
The so-called POC, which in the end what is it?
Compared POW kept changing the header area of a digital to guess the correct hash value, POC guessing your workload becomes hard disk space effort "mapping" (plotting) a. Calculation method (solutions) for each block will bind a unique "puzzle", before the mining began, the network will be stored in unraveling the mystery of your hard disk space. These calculation methods and some faster, some slower, if you happen to have a method to calculate your hard drive, is the recently created this block puzzle where the corresponding "fastest solution", then you win accounting right this block - mining reward is yours. 
Compared with the PoW mechanism, PoC has many advantages:
1, low power consumption, more energy efficient
compared to the PoW, POC mining would force operators to replace hard disk space, to a large extent eliminate the waste of resources caused by mining and POW issues such as unfriendly to the environment, while reducing mining costs, so that the miners earn more profits from mining in.
The most commonly used power mining machine is substantially smaller ants are between 1-2 kW, and the power consumption of a disk 8T few watts, a hard disk POC mining machine is approximately equal to the power consumption of about 25W, 100 machine power station only 2 thousand watts.
2, the threshold is low, everyone can participate
compared to other mining machine use, graphics, ASIC chip digital currency such as mining, mining PoC lower investment costs. Compared to now a POW machine mining machine's hard to find, PoC can be hard as long as mining, mining greatly reduces the threshold. PoC mining machine with low power consumption, low noise, low cost, suitable for all the family mining and mining.
ASIC PoW mining machine used at present can only do mining, the operator of the new force higher mining machine on the market, the old iron mine machine can only sell obsolete, worthless. And even if the machine is not used as POC ore mining can be as hard to use, and very large hard drive shipments, there is no monopoly, stable prices, the secondary hard drive hedge rate is very high.
3, mortgage mechanism
POC mining hard, though, and mining POW similar in concept, but in the beginning of the design adds a mortgage mechanism that allows users to encrypt lend money needed to obtain benefits Miner. Mortgage mechanisms raised the threshold count centralized force, even with the emergence of super miner, ordinary retail investors can continue to benefit.
4, anti-ASIC, antitrust
When Bitcoin miners are emerging use of CPU mining, anyone who only has a computer can participate in mining, which is Nakamoto mind. However, with the popular graphics Bitcoin, have higher power and energy efficiency of the operator out of the CPU mining, large miners after admission ASIC with more professional mining machine mining machine replaces the cards. Mining has become a capitalist game, the average user loses eligibility for admission.
PoC mining capacity hard disk instead of the operator force, with anti-ASIC natural attributes, PoC mainstream mining equipment in recent years will always stay on the mechanical hard drive, the average user is not much mining and disadvantages.
POC in 2019 with the rise of an ecumenical chain Yottachain, more and more miners join the POC hard mining industry the army. Yottachain is a public open chain, which provides services to all of the block chain store items, such conventional centralized storage applications may directly YottaChain seamlessly migrate to store shared data storage stand reliable, low cost, and an anti-DDoS advantage comes with disaster recovery capability.
Block chain store outlet now is well deserved, as the best landing scenario storage block chain technology is indeed evidence-based, "First, storage is totally exist in digital form real economy, all of the code can be used controlled, and the mechanism does not require any, of the card can be passed directly, directly on the chain. second, the enhanced data reliability, availability, etc. disaster Recovery stores demand decentralized, and block chain fit. third, stores characteristic data de-duplication, so that more users, lower cost.
By incentive system block chain, not only can encourage miners to join, to quickly build a large storage pool global coverage; can punish storage node does not provide promised services, ensure the quality of storage services; can also encourage users to use, to a greater extent to reduce costs . "
In the entire block chain in the world are exploring how the real economy can be timed, YottaChain have made a breakthrough, this is YottaChain a small step, but it is a big step entire block chain world. All in all, PoC relative to the PoW, is a more valuable consensus, perhaps POC mining is also likely to become a new trend in the next block chain technology applications.