Mining climate which is conducive, remains decentralized, became the starting back the success and security of bitcoin. Over the course of time and climate development, mining also potentially be centered because of the power of big capital or specific group of successful mining computing magnitudes have almost close to 50%.

Background

The Group's capital strength or potentially master mining ecosystem with enlarge quantity computing power (hashrate) network of bitcoin. In this regard, the group, or the power of big capital that his greatest influence came from the device manufacturer mining bitcoin currently has many dominated with ASIC (Application Specific Integrated Circuits).

Mining device into many ASIC dominate mining ecosystem bitcoin because efficiency and effectiveness in performing certain computing to mine bitcoin if compared to the GPU (Graphics Processing Unit).

Monopoly Hashrate and ASIC

One of the great, Bitmain ASIC vendors, then became one of many parties to monopolize the ecosystem through mining pabrikannya ASIC device. In the network of bitcoin, Bitmain party ever had hashrate approached 50%.

The condition of course be conditions that ought to be feared, is associated with the potential network mastery may occur at any time, including the potential 51% attack. However, basically, the dynamic conditions of the vendor of the ASIC is not the issue if more alternative vendors ASIC popping up. So climate manufacturers be more competitive and ASIC also conducive.

Unfortunately, gradually since they stood, BItmain himself has a lot of positioning itself as a manufacturer of ASIC which more monopolized the market. Allegedly, the number of devices to be used on its own is much larger than the number of ASIC market for sale.

From the picture we can see that Bitmain with the device has enough potential to make the network of bitcoin became tersentral. Own Bitmain party tudingan BTC.com that shook off many independents, but it is just another empty pepesan only because the reality is wholly owned by Bitmain.

Inter AsicBoost ASIC
AsicBoost, is an ASIC for mining that implanted a new way to allow exploitation of the device can maximize the performance of up to 20% faster, and then embedded on the chip ASICnya.

The potential weakness of the algorithm in consensus POW bitcoin was first noticed by Grex Maxwell and posted into the forum mailing list developer bitcoin on 5 April 2017. The potential of the unknown, there are several miners who use unfair means against the other miners in the network of bitcoin.

Unfair efforts that using ways that are deemed detrimental to other miners. This function utilizes the Asicboost Freitas damgard hash, where the process of mining bitcoin generally perform hashing block 80 byte header with focusing on nonce with a size of 32 bits.

If on any process of hashing SHA256 exclusively using 64 bit in the first option, then the influence of the previous data also will not be affected. Whereas if a miner was able to make the first 64 bits of the header block and the second block with a closer or identical with 16 bit, then miner that can use it and the calculation repeated for a few experiments in the next block. As a result, the methods can effectively to reduce the consumption of energy and resources, so that it is able to work up to 20% more effective.

Attacks that use media device named Asicboost ASIC was originally patented by Timo Hanke and Sergio Demian Lerner in November of the year 2014. Controversy about Asicboost continued when suddenly the party Bitmain Asicboost versions of their patented copes without completely specify credit Timo Hanke and Sergio Demian Lerner. Patent Asicboost was registered in China on behalf of Bitmain.

Again the efforts done by the back culas Bitmain to back trying to do network through mastery of quantity of computing devices ASIC. It was later repulsed with activation Segwit bitcoin, which makes Asicboost may not work. The cornerstone of the activation Segwit this is what later become rejected by party plot Bitmain CS, and engender BCash (Bitcoin Cash).

Instead of disagreeing with the Segwit, the Bitmain CS proposes a Segwit2x so that Asicboost actually they can still function and the elections caused profits much bigger. When Segwit bitcoin active and successful, then again Bitmain CS try looking the other way with a new drama gave rise to the name BCash.

Overall, a good mastery of the bitcoin network through potential producers a big ASIC, and potential Asicboost has long been a thorn in the flesh in the Bitcoin. However, should the bitcoin can make mining and climate network of bitcoin overall remains decentralized, none of the control and the control of in them.

PoWx Dengan Komputasi Optik dalam Proof of Work Bitcoin

Lambat laun, munculah opsi untuk mengubah PoW bitcoin. Luke Dashjr, developer bitcoin, kemudian berkali-kali mencoba menggali pendapat di komunitas bitcoin tentang opsi tersebut. Hingga tak lama kemudian muncul PoWx yang memanfaatkan Komputasi Optik (Photonic Computing) untuk dapat meningkatkan keamanan konsensus PoW bitcoin.

https://www.scribd.com/embeds/383159638/content?

So far the conversion option PoW bitcoin is still in accordance with the proposal, and also still in a stage of further development. However, understanding the ecosystem conditions of mining and everything above enclosing them become quite important to know if it turns out that at some point later this option is used in the Bitcoin.

Then how Optical Proof of Work (OPoW) this fact? OPoW basically focuses on the use of hardware and software based on Optical Computer/Optical Computing, or called (Western Digital my Computing). In this case, the devices in it no longer rely to make use of the current electric energy to be able to perform a computation, but instead use a photon of visible light or infrared (IR).

If the general basic building a modern computers is the transistor, then transistors were later replaced with optical-based electronic components. So the light intensity can be entered and transmitted through its material in the same way as does the response of bipolar transistors.

Because of the importance of the elements into light then nothing like the electric energy that could potentially damage the device more heat if komputasinya getting faster, culminated with the increasing number of electricity used, and the heat becomes a major factor damage to this device. With a light, then no matter how much you use, so that the development of a system of data processing and computing becomes more resistant and strong. This optical-based computer technology, is believed to be able to process much faster than today's modern electronic computers.

In General, vision-based OPoW application of optical computing from PoWx has many benefits, such as:
Beneficial for improving decentralized mining ecosystem bitcoin

• To minimize the level of power consumption electrical energy
• Troubleshoot the potential centrality of mining ecosystem such as ASIC/GPU
• Projected to run on PoW Bitcoin.
• Creating a climate more competitive mining ecosystem, away from a monopoly with the project-based open source -development projects.
• To make it more alacrity against a challenge from Quantum Computing in the future

Use of electric energy issues high on Mining Bitcoin
One of the biggest problems in the ecosystem of mining is the magnitude of the electrical power needed to perform the computation. So far, with the effectiveness performance of ASIC devices still haven't been able to provide solutions to the magnitude of the power that energy.

If on some variant of Altcoin many who use the DPoS to mining mechanism, then the Bitcoin should still strives to be the more expensive so that ecosystems remain can be decentralized. It still makes the criterion bitcoin with some variant of Altcoin.

Because the DPoS, allowing a small part of the group that could potentially overwhelm the network. POW bitcoin today, to be able to master the bitcoin network will require resources that are really so great. Despite the potential that is still possible, but it will be hard enough it can be done. While the hardware for the mining, OPoW will also use the ASIC based optics. In this case, the use is Application Specific Integrated Circuit Western Digital my ##(ASPIC).