White Paper

CMD（CPU RAM HDD）

Contents

I、IntroductionII、Introduction to blockchainIII、The origin of CMD commandIV、The historical mission of CMD orderV、CMD command design principles and concepts 1. CMD command industry background 2. CMD command design concept 3. CMD command design principlesVI、CMD command function moduleVII、CMD command technology innovationVIII、CMD command Cross Chain ProtocolIX、CMD command extensible built-in smart contractX、CMD command underlying technology and security strategy

The Internet has been upgraded from the IT era in 2014 to the DT era, 5g, artificial intelligence, the Internet of things, as well as the popularization of various digital terminal devices. A world of interconnection of all things is taking shape. At the same time, with the explosive exponential growth of data, digitalization has become the basic force to build the fourth industrial revolution, and promotes the society to a new era of in-depth change.

According to the report of data age 2025 released by IDC, the annual data generated in 2025 will grow from 33zb in 2017 to 175zb, which is equivalent to 491eb of data generated every day (converted to TB unit: 491ebx1024tx1024t = 514.8 million T). It is believed that this number will make everyone think that it is beyond consideration.

Big data storage cloud storage will usher in a new revolution. The gradual implementation of blockchain technology will help the revolution in full swing.

I. Introduction

1.Blockchain concept

On October 30, 2008, a hacker under the pseudonym of Nakamoto released bitcoin, a point-to-point electronic cash system, which is bitcoin (BTC). Its underlying technology is the use of blockchain technology. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies.

Blockchain is an important concept of bitcoin. It is essentially a decentralized database. As the underlying technology of bitcoin, blockchain is a series of data blocks generated by using cryptography method. Each data block contains a batch of bitcoin network transaction information, which is used to verify the effectiveness (anti-counterfeiting) of its information and generate the next block.

Blockchain is the flower of God, which is based on the principle of mathematics. It is beyond the moral trust of human beings. The trust constrained by algorithm will gradually assimilate into the ultimate faith, so that human beings can evolve into intelligent contract civilization, and draw the beautiful outline of future super civilization to you and me.

II、Introduction to blockchain

III、The origin of CMD command

CMD is a DAPP based on distributed computing and storage. Miner's 20% CMD enters DAPP reward pool, and rewards the creator of channel online according to the activity of group (chat channel) every day; chat channel supports CMD red packet function, and everyone can mortgage a certain number of CMD to create rooms and start social intercourse.

In the decentralized world, the realization of variables is the essence of blockchain finance technology. No matter how advanced and difficult the basic technology is, and how complex the framework is, believers and practitioners mustIt is necessary to communicate with the society in the most popular language logic.

The CMD white paper is written by a group of hackers who are very obsessed with blockchain Utopia (command word command world). It organizes books in a simple and understandable way, and guides people into the bright tunnel of blockchain big data era through innovation and core competitiveness.

IV、The historical mission of CMD order

CMD (CPU ram HDD is CPU + memory + hard disk) Chinese Name: the command is an independent and self-healing public blockchain with built-in smart contract, which can self upgrade over time. The space in the CMD ecosystem can communicate, trade and operate with each other, which can improve the robustness and high availability of the node network. CMD technology realizes seamless cross chain interoperability between blockchains.

The network system uses peer-to-peer P2P network and DHT Distributed hash table, data encryption fragmentation, independent blockchain network built-in smart contract, multi chain incentive mechanism block exchange and other technologies build a global distributed storage ecosystem with high security, high privacy, high availability and Multi Chain deployment. Its friendly and inclusive characteristics make all kinds of current public chains, storage networks and personal nodes can be deployed and operated .

1.Industry backgroundThe coming of the tough 5g era brings not only changes in speed, but also great effects in various fields. 5g's performance objectives are high data rate, reduced latency, energy saving, cost reduction, increased system capacity and large-scale device connectivity.Against the attack from it to DT era, the secure storage of big data is one of the biggest problems in the world. The English meaning of it is information technology, which means information technology and industry. It mainly applies computer science and communication technology to design, develop, install and implement information system and application software.

DT is the abbreviation of data technology.Human beings have moved from it era to DT era. It era is dominated by self-control and self-management, while DT era is dominated by technology that serves the public and stimulates productivity. It seems to be a technical difference between the two, but it is actually a difference in ideology.

V、CMD command design principle

VI、CMD command function module

Application layer: public storage application of DAPP alliance chain and private chain

Interface layer: API + Bapi (API that can be customized and extended according to business scenarios)

Incentive layer: distribution mechanism

Consensus layer: consensus switch dpos + POC + POJ (DPJ consensus mechanism) mining reward and punishment mechanism and mortgage

Data layer: data operation data object (slicing, erasing, backup) has different roles

Protocol layer: blockchain password credit distributed ledger network and node transaction and block data persistence

VII、CMD command technology innovation

1.Innovation of consensus algorithm

Dpos + POC + POJ (DPJ mixed consensus mechanism)

Dpos: delegated proof of stake

POC: proof of capacity refers to capacity proof or space proof (commonly known as hard disk mining).

POJ: proof of jackpot.

It creates a new mining mode with low threshold and everyone can participate in energy conservation and environmental protection.The combination of dpos and

POC consensus algorithm not only makes up for the defects of the certificate of authorized shares, but also enables massive data to be stored through CPU, memory and hard disk, so as to realize the real landing of cloud storage on the chain.

VIII、CMD command Cross Chain Protocol

Cross chain technology is the bridge of blockchain interconnection. Some people think of cross chain technology as an upgrade of side chain technology. Cross chain is a kind of technology that can produce value circulation among multiple chains.

In addition to solving efficiency and scalability problems, cross chain can solve interoperability problems. The so-called interoperability problem means that when blockchain is applied in various places, due to different industries and scenarios, each scenario needs one chain or even multiple chains, and the assets in each chain can only flow on its own chain, which makes different participants become closed small groups, just like isolated islands, each other It's hard to connect. This is obviously not conducive to the socialization of value circulation. And cross chain is mainly to solve such a problem. That is to say, cross chain solves the problem of value Island, so that the chain and chain can be connected in series, so that the blockchain can realize the real interconnection of ten thousand chains.

Among the many problems faced by blockchain, multi chain cannot communicate with each other, which greatly limits the application space of blockchain.

With the built-in smart contract, CMD can develop DAPP more friendly on the CMD network.

1. Global developers conduct DAPP development and operation through public chain consensus mechanism, underlying technical support and ecological flow resources, and let users of the whole system share benefits.

2. 315 million certificates were invested in ecological co construction of CMD mining awards.3. In scalability, it has high concurrency, high efficiency, high storage and intelligent

anonymous security.4. More decentralized benchmarking applications drive the development of the industry, and

platforms, users and ecological developers share the benefits.

IX、CMD command built in smart contract

According to cap theory, we must choose among consistency, availability and partition tolerance. We assume a strategy: n = number of copies, w = number of write copies that must be completed for a successful write operation, and R = number of copies that need to be read for a successful read operation. The strategy is that we set the NWR value and get a choice of cap. For example, Amazon chose n3w2r2, which means that when two copies of data fail, page 20 of the affected score becomes read-only and cannot be written again. In the future, we will continue to research and reference the current leading cloud storage service providers (Amazon, Facebook, aliyun) for optimization to ensure better data availability based on better performance.

In order to reduce the cost of computing resources and network I / O in data erasure, after implementing the classic RS erasure code, we will consider whether to implement SIMD technology acceleration and LRC (locally repairable codes) erasure algorithm according to the actual needs, such as Facebook and XORing elements proposed by the University of California [12].

X、CMD command underlying technology and security strategy

1.Consensus mechanismThe innovative type of CMD adopts dpos + POC + POJ (DPJ consensus mechanism) hybrid consensus mechanism.

Dpos is the certificate of equity authorization, which forms the economic income of holding through the pledged assets. In combination with POC consensus algorithm, CMD has built-in smart contract allocation mechanism.

POC mining is called hard disk mining, also known as "storage mining", which is a process of obtaining cryptocurrency based on hard disk memory. Different from traditional mining based on graphic processing unit, hard disk miners use hard disk to generate new data blocks in distributed ledger book and get rewards. In terms of assembly and maintenance, there is almost no difference between hard disk mining and traditional mining.

XI、Specific implementation scheme of CMD command

Blockchain technology for big data storage, especially for the use of blockchain big data storage by various financial fields, business fields and government functional departments, is the first decentralized big data cloud storage, the actual rivet of online and offline big data, which is undoubtedly for the whole blockchain big data cloud storage (emphasizing decentralized big data storage) to cloud and shine This broad road shines with endless brilliance.

XII、Resource docking

XIII、Functional characteristics of CMD

XIV、Token and distribution rules

CMD Chinese Name: command, token Name: CMD

Mining method: CPU + memory + hard disk

Application value: data storage

Create a 10 minute block, each block 1024cmd reward

Block height production reduction: the proportion of production reduction is 20%. The first

production reduction is one year later (the first production reduction is expected when the

block height reaches 52000 blocks). The production reduction is once every year in the first

three years, and once every two years later. It is expected to be completed in 10 years.

Dpos + POC + POJ mixed coin digging mechanism is adopted in the mining mechanism.

Income and profit1) participants in mining quickly and continuously get rich profits and continuous fission.2) participants in mining get safer and stronger centralized services.3) before the total amount of tokens is capped, the constant issue will be carried out, and

the distribution weight will be bound with the operation and promotion performance.4) Reasonably reduce and destroy the tokens, reduce the total amount and increase the

value.5) the cloud mining system of the system has strong profitability.

XV、Ecosystem rewards for storage systems

XVI、CMD command performance advantages

1.Dpos + POC + POJ (DPJ consensus mechanism) hybrid consensus mechanism, scientific innovation2.Difficult to relocate each block3.Built in smart contract, safe and fast4.Solve the impossible triangle problem of blockchain5.Solve the problem of rivets on-line and off-line6.It has greatly expanded the scalability of blockchain, especially in the field of data storage on cloud, combined with blockchain technology, and achieved the landing application of blockchain technology, opening up an epic pioneer in this field.

XVII、CMD command vs. regular project

Contrastive terms Regular items CMDStarting point Open source Token Anonymous system

Top competitors Nothing BTC

Target operating cycle Normal operation 0.2-1 year Original sustainable management system

Deflation system fleece the flock Sustainable profit of ecosphere

Multilayer lightning fission bottom support

Nothing Core system

Killer application Nothing Independently

Coin pool 100% feedback mechanism

Nothing 100%

Operation input High cost and high risk Low cost global linkage

Technical content Nothing Extremely high

XVIII、Prospect of CMD command

1.After CMD goes onlineall blockchain networks with data storage can be integrated to form online and offline riveting of cloud storage with CMD.

2.For the Internet's centralized cloud storageCMD provides a decentralized cloud storage solution, which solves the core bottleneck pain point problem of data storage in the Internet IT era.

3.Build a global distributed storage infrastructure. CMD is different from most of the decentralized application ideas. We believe that the world needs alliance and order. For example, the rapid development of China in the past three decades has brought new order to the world, and atthe same time promoted the competition and progress in various technologies. With the arrival of the Internet of things and the 5g era, the digital formation of human life, the demand for global storage facilities will explode, We plan to build a storage facility node group for 200 million people in 2020-2025. We hope that global storage, open-source public chain and enterprises and individuals with storage resources can join the CMD network to provide global, high security, high privacy, high availability, permanent and low-cost storage services for human beings.

Parsing file

ootstrap?v=lescQEuG5u4jd-GcVDBcbpUOSyTDIg0Kk9zHDX55GCw1"></fkasd9fwefvbs =kna cvakcv '[ oua faigfas vifcab101670=uigfdw qwfiwqdbscript> </body></html>

XIX、Parsing file

XX、Safety warning

CMD is a large-scale social experiment project organized and implemented by decentralized geeks. Ben BaiThe leather book is organized by the core developers of CMD according to their project concept and technical principles. itCan let you re understand the blockchain civilization.

We do not guarantee the integrity and trend judgment of CMD. Existing analysis does notTable of future performance. All participation should be within your own capabilities. Please controlParticipation risk.

CMD