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DCE comes to and the future is destined to turn our lives upside down.You deserve to see it first.

Back Ground

The global online game will be worth over $1 trillion

It’s reported by Game Look, App Annie issued the global online entertainment report recently, the company expects the online entertainment industry scale will reach $1 trillion in 2017.In fiscal 2014 global iOS mobile game revenue increse 55% year-on-year, a game of CARDS income increased by 50%, dice game revenues increased by 70% over the same period. As smart phone penetration increases, revenue of mobile game will continue to increase.

Below is the report content compiled by Game Look:

Online entertainment industry and the sports and entity online entertainment is experiencing a very rapid growth, App Annie expects the online entertainment industry in 2017 is expected to grow to $1 trillion , will bring huge revenue growth to related game company. While legal issues and app store rules impose restrictions on social gaming, the market range of such games has grown tremendously over the past year. From November 2013 to November 2014, revenue of the global iOS gaming game category increased by nearly 55%, a series of large-scale mergers and acquisitions solidified mobile game's position in this industry.

Mobile game is changing the game industry rapidly,and has brought a monumental change for transport, communications and entertainment. Another industry affected by mobile game is the online entertainment industry. Mobile game devices currently provide a very large revenue contribution to the online entertainment industry. For example,mobile online entertainment revenues doubled in fiscal 2014 In the UK. Although mobile online entertainment has continued rapid growth,but App Annie expected that will have greater range for growth in this field, it will reach $1 trillion in 2017, occupying 17% of the world's entertainment revenues.

To better understand this emerging market, we take Pachinko, a online entertainment in Japan as an example.

The entertainment industry is illegal in Japan until 2016. Of course, there are some exceptions, such as horse racing, boat racing, motorcycle racing, cycling and lottery.

However, entrepreneurs have found some simple and effective ways to circumvent their own laws in recent years. One of the most popular way is Pachinko.

Although it is almost unheard of outside in Japan, but the Pachinko game has led to a boom in Japan's domestic online entertainment industry. At that time, there were about 11, 000 bullet stadiums all over the country. Total revenue from Pachinko in 2015 reached $209 billion, it takes about 4-5% of Japan's gross domestic product.

The player participates in the game, need to buy "marbles"firstly. Then the balls are loaded into the pinball machine and the ball is placed at the top of the machine by operating a lever mechanism. At the top, as the marbles lose their power, they fall into a playground filled with obstacles. Once you hit the target, you will get more marbles.

These marbles does not have value, but upon the player the decide to end the game, they will spend the rest of the marble (including additional marbles they win) to change the prize in the exhibition booth.

Players can get "cash equivalents" by swapping marbles because the law forbid the ball store paying cash rewards to players,So the related business is derived, which can be used to buy these "cash equivalents" in cash.

But, what is this "cash equivalent"?

Those DCE that derived from the development of Block Chain technology and the application are the best "cash equivalents".

The DCE is derived from the background of online entertainment industry cash. It is not only a kind of "cash equivalent" for recreation ground, but also as industry regulation of new entertainment Block Chain ecosystem.

Part I: overview

I. abstract:

The DCE online entertainment Block Chain (Diverse Currency Circulation Ecosystem, the English full name is Diverse Currency Circulation Ecosystem, short for DCE) devote to build in ecological chain technology online entertainments under the mature Block Chain, provide the gaming Block Chain architecture system for mature gaming entertainment users,and Contribute to online entertainment ecology content, break the rules of the online entertainment industry, create a new business model.

In the white book of DCE, we describe how the DCE is conceived, designed and applied in details. DCE abide the principles of good design, reference the existing block and ecological chain technology, combining with the characteristics of the online entertainment industry, we propose a multiple technology and the way to combine the online entertainment and chain blocks, solve the problems of the existing profit difficulty, and to improve the performance of Block Chain, take more consensus approach at the same time , to expand the application scope of online entertainment Block Chain.

Block Chain is a new exploration industry, it has unlimited potential combined with the online entertainment industry too , even it can solve some pain points in the online entertainment industry ,after further accumulation in Block Chain framework and technology, we redesign the new technical architecture, and focuses on using the most appropriate and proven technology to build a mature Block Chain products.

II. Background and significance of Block Chain

When Satoshi Nakamoto started the bit coin Block Chain in January 2009, he introduced two revolutionary new concepts that were untested to the world . The first is bit coin, a point-to-point online currency that sustains value without any asset guarantees, intrinsic value or central issuer. So far, bit coin has attracted a lot of public attention, in terms of politics, it is a currency that has no central bank endorsement and has a sharp price fluctuation. The second is the consensus mechanism: the concept of Block Chain based on workload proof. It allows people to agree on the order of transactions. bit coin as an application can be described as A first-to-file system: if someone has 50BTC and sends the 50BTC to A and B simultaneously ,it will has an effect only the first confirmed transaction. There is no inherent way to determine which transactions will arrive first, which prevents the development of the decentralized digital currency for many years. The Block Chain of nakamoto is the first reliable decentralized solution. Now, developers are turning their attention to the next chapter of bit coin technology, how the Block Chain can be applied beyond of the currency. But due to the lack of Turing completeness COINS and cannot achieve circulation such as logic, so the bit corn is not suitable for the development of other scenarios, Vitalik released a new white paper in 2013 put forward a Turing complete Block Chain system -"Ethereum ", put forward to construct Web3.0 make Block Chain, a new concept for web 3.0, really makes Block Chain has extensive application value in the field of application.

Ethereum is a "smart" contract with Turing-complete Block Chain, intelligent contracts in simple logic expression, this is a set system of transfer digital assets according to the any custom rules in advance.For example, someone may has a storage contracts, in the form of "A can withdraw at most X COINS daily, B can withdraw at most Y COINS daily. A and B can withdraw together at will , A can stop the B

Withdraws rights". Logical social scene in this agreement is Decentralized autonomous organization DAOs (Decentralized Anonymous Organizations) using a long-term containing the assets of an organization and intelligent contract of organization rules encoding. Ethernet fang's aim is to provide a a built-in chain blocks with mature Turing-complete language , using this kind of language can create contracts to encode any state transition function, users just realize the logic with simply using a few lines of code, can create all of the above mentioned systems, as well as many other system we can't imagine.

However in the online entertainments field, Block Chain network structure may not be appropriate based on the currency and Ethereum , because that the currency and the Ethereum can only provide a small amount of TPS currently, may cause some certain congestion, will affect the operation of the online entertainment industry seriously, and the ecological system of Ethereum is not so perfect , lack of certain privileges on the basic design.

We've thought about building a new DCE by two ways. 1. Building the ecosystem of the game side chain base on the Ethereum. 2. Rebuild the new Block Chain in the exclusive domain. After a period of technical experiments and tests, we decided to redesign the consensus mechanism based on DPOS after rigorous investigation of consensus, ecology and performance. We consider that the consensus of the mechanism based on POW is the most effective consensus method at present, but this is not a perfect performance solution, can solve the problem based on the consensus of DPOS mechanism in performance , but it is weak in cannot complete decentralization, we decided to take a compromise solution.

Part II: The design principle and realization method of DCE

（I）Why connect the online entertainment to DCE

Although the online entertainment industry is full of giants, there are various risks, including industry risk, market risk, risk of core staff’s lost, financial risk and so on. Making online entertainment in decentralized company way , maybe able to solve these problems in the online entertainment industry, but by high transaction costs and limited computing power limitation, the existing Block Chain platform is not suitable for the online entertainment industry. Some pain points can't be solved in the online entertainment industry:

(1) Research and development pain points of online entertainments

1.High commission, backward settlement way, bad debts

Developers have developed a game that requires pass it to publishers submit the product through channels,and then push it to players. So,after launch a game,the revenue from the player, need to strand on the channel firstly, after a long complex reconciliation, excluded bad loans, and then settle to the vendor after 2 ~ 3 months. and then issue according to their own situation, after deducting fees, and after 1 ~ 2 months to settle to the research and development. In the process, the payment channels charge 30% to 50% of the commissions normally, while the download channels charge is multifarious, and the rest are collected by distributors and developers.

2. Lack of product promotion way, the marketing cost is high

Developer will give up their own profits in principle to promote product, but due to the lack of trust mechanism at present, so only can be the form of purchase user (normally known as buy quantity), it will be a big cost for the promotion and development. Many developers are unable to do that. At the same time, due to the false information of some game products, game ranking, evaluation and comment of the authority is being questioned. Players are likely to choose games recommend by friends or BBS.

3. Lack of trust mechanism

There is multi-working in research and development of the game products , even many process completion. For example: art outsourcing, IP sharing, planning outsourcing, program outsourcing, etc. At present, there is a relatively simple approach to this kind of multi-industry cooperation, namely, one-time paid purchase, which leads to the high cost of research and development. There are no upfront fees and it is only involved in sharing, which often reduces the upfront cost and improves the quality of the product (as the profit depends on the performance of the game). However ,the same pattern in all kinds of outsourcing, because of the trust mechanism problems, still need to charge high cost of outsourcing, the cost in research and development is high, and the outsourcing quality feedback for the market, also won't affect the benefits of outsourcing, caused a lot of low quality outsourcing to disrupt the market, destroy the product.

(2) The publisher pain points

1. The game user can't twice converted

Medium and small distributors can not achieve the platform, and multiple games are controlled by the account system of each channel. Users of each game can't twice converted into other games .And publisher’s information can’t be used effectively, Even if the two games are aimed at the same users, the publisher still needs to promote the games individually and cannot realize the user's secondary transformation.

2.Malicious competition between channels

Perennial malicious competition between channels, adopt grab each other user behavior by rebates, discounts, for publishers, the game of life cycle is shortened, profit fell sharply, users are hurted. So such a good quality game channels are often malicious competition into a wave of products.

（3）Players’ pain points

1. Disorderly and overgrown third-party trading platform

With the development of the online entertainment industry, the great demand for trading accounts, replaceable payment and other transactions , and the virtual game content trading market of third parties is gradually formed. However, due to the lack of a mature third-party trading platform, such transactions tend to be completely independent from the game system, there is some problem with high transaction costs, difficult to implement, and easy to dispute.

2.Players can't enjoy good games

Small and medium-sized game companies have been struggling to survive, and counterfeit the game date usually, which lead the game industry is facing the problem of audience autonomy and criticism. In the case of "Bad horses dislodge good horses", the game industry's ecological deterioration has been caused. For players, to enjoy good games is getting more difficult.

Therefore, we designed and developed the DCE for the above risks and pain points.

（II）The application of Block Chain - DCE

DCE is to establish a set of decentralized counterpoising truly mode, joint account through each node , to protect digital asset transfer’s unique legitimacy , don't rely on the offline traditional third party, is a kind of low cost of credit system. In financial services, Block Chain by encrypting currency, intelligent participation mechanism, contract and agreement will be evolved into the traditional financial and legal system of decentralized autonomous system, promoting financial business running in full diversification and decentralized way, implement the financial business subject, financial products and financial infrastructure and so on each link of the large-scale system collaboration.

DCE chain combine the online entertainment, mobile financial, tourism and leisure, and other industries step by step based on Block Chain technology of integral system upgrade traditional integral liquidity, security, try to integral consumer electronics, such as lottery betting entertainment online entertainment services spread slowly , it is committed to building industry alliance ecosystem, issuing and trading of digital assets and management, realize the exchange swaps between different digital assets, liquidity, to take more value for all parties.

DCE online entertainment based on the cloud platform, collecting video, lottery online entertainment projects, building security trusted open gaming service, committed to build an internet betting services which in line with the online entertainment market demand, and worthy of sports fans trust .

It aslo joint with a Las Vegas, the Venetian Macao resort hotel etc, introduced a entertainment club application solutions, and construct a powerful online and offline sports lottery betting with strength , collect all kinds of sporting events in the world and provides various style choice for player, customized for each player, able to meet the players' sports view and admire and betting preferences as the goal of global entertainment bets.

In order to optimize the user experience, use the advanced mobile technology, focus on the demands of users, in the pioneering entertainment club service,at the same time, DCE chain perfecting tourism scene wisdom, joint Las Vegas, the Venetian Macao resort hotel and many forces offers deluxe suites, themes shopping centers, restaurants, performance hall, gymnasium, playground, golf course and online entertainment, exhibition, shopping, sports, variety and recreational facilities, to promote the rapid development of leisure tourism market.

DCE chain mobile financial particularly emphasis on the strain capacity of financial market, Through the powerful mobile Internet technology, and intelligent data analysis, DCE chain response to any change in the financial markets instantly. With reports of risk monitoring, risk response plan, intelligent investment strategy combination plan, global financial services, such as intelligent finance form to help users in the face of the surging wave of Internet financial. The strong combination of mobile Internet and finance has realized the innovation of financial products and services.

DCE provides the ability of digital assets, scene that can develop the issuance of assets management rapidly, realization of assets exchange, precision marketing through data intelligent analysis , improve the overall marketing value, user precision marketing, create more business value.

DCE has successfully built the ecological chain based on the center of online entertainment,mobile financial,leisure and entertainment ,which encompasses online entertainment,exhibition, shopping,sports, variety and mobile,mobile banking, stock funds and other financial investment service,develops reasonably and sustainably

Of course, DCE chain won’t satisfiy with it. In the near future, DCE will continue to radiate to the four industries and join the food city, theme parks, water world and other life services to meet the various entertainment needs of all levels of life. DCE chain ecosystem won’t stop to develop, improve and expand its influence, and construct an innovative and rapided mobile Internet culture.

We believe that the development of DCE will be used in all aspects of life, which will make you feeling the charming of Block Chain mobile service!.

（1）Block Chain infrastructure

Block Chain infrastructure tools are the necessary components of the DCE, wallet, and account systems. They reused the modular components ,and these components can be used as the basis for applications and can be improved.

（2）Identity system

Each account will have a specified and unique ID. User can register a unique name and connect the name to the Merkle root of a data structure. The data structure can contain one user's unique ID and other account information.

（3）wallet

A wallet is a software used to interact with DCE Token. The wallet will take charge of the DCE private key, and create and sign transactions. Users can use the wallet to send channel transactions and use app which connect the network.

（4）Charge API

Most of today's API is public which anyone can call, or using certain API that requires a user name, password, or unique access DCE. Payment channels make it possible for a new type of API to be paid,you can pay for each API call, or even every HTTP request. Paying for access to API also solves the DDoS problem and makes it easier to build high-quality and always available API. The API response that needs to be paid is fundamental to the creation of some hitherto impossible business models that can play a very important role in the future of the centralized economy. They can provide economic incentives for holders of information so that they can make the owned data publicly available.

（5）Insurance system

To create a new entertainment insurance system to prevent addiction. As a new system of property protection.

（6）Secure public offerings

We can use priority protection contracts (dominant assurance contracts) to deploy all the security activities raised.

（7）Point to point communication system

Using Block Chain level security encryption techniques can’t be broken at present. Convenience for private communication, solve privacy problems, solve the problem of monitoring and network transmission.

（8）Privacy protection

DCE system will management the user of platform by smart contract. The system will provide an optional identification module, which is a prerequisite for the Block Chain system to dock with the financial system. System developers will develop the corresponding smart contract code, and can link third party organizations, aslo can generate anonymous players, using anonymous user systems only .

(III)The current technical details of Block Chain and the solution of DCE

(1) Working mode of bit coin

Bit coin has been in operation for eight years since the bit coin open source code was designed by satoshi nakamoto, it is the first application based on the consensus of the POW. Let's take a look at the principles of the bit coin system: bit coin is a ledger system that combines a node based decentralized consensus protocol with a workload proof mechanism. In the system, the node has the right to participate in the system through the workload proof mechanism, and the transaction is packaged into "block" every ten minutes to create a growing Block Chain. In this system, nodes with a large amount of computing power have greater influence. So it's going to be a very large network of computing forces, and it's much more difficult to get the more computing forces of entire network then to create a million nodes, and these forces maintaining the stability of the bit coin system. Although the bit coin Block Chain model is rudimentary, it has proven to be good enough, and it will be the cornerstone of more than two hundred currencies and agreements across the world in the next five years.

As the currency of state transition system , from a technical point of view, the currency books can be considered to be a state transition system, the system includes all the existing state of the currency ownership and state transition function. The status transition function outputs a new status with the current status and transaction as input.

For example, in the standard of the banking system, the state is A balance sheet, requests from A account transfer $X to B account is a deal, the state transition function subtract $X from A account,and add $X to B account. If the balance of A account is less than $X, the state transition function will returns an error message.

So we can define the state transition function as follows:

APPLY(S,TX) > S' or ERROR

In the banking system mentioned above, the state transition function is as follows:

APPLY({ Alice: $50, Bob: $50 },"send $20 from Alice to Bob") = { Alice: $30,Bob: $70 }

But:

APPLY({ Alice: $50, Bob: $50 },"send $70 from Alice to Bob") = ERROR

The "state" of the bit coin system is the collection of all unspent and scooped bit coins, (technically known as "unspent transaction outputs, unspent transaction outputs or UTXO"). Each UTXO has a face value and the owner (defined by the address of the 20 bytes essentially the cryptographic public key). One or more inputs and one or more outputs are easily included in each trasaction. Each input contains an existing UTXO reference and a cryptographic signature created by the private key corresponding to the owner's address. Each output contains a new UTXO that is added to the state. In the bit coin system, the state conversion function APPLY (S, TX) - > S can be generally defined as follows:

Each input of the transaction:

If the referenced UTXO does not exist in the current state (S), return an error message

If the signature is not consistent with the UTXO owner's signature, return an error message

The first part of the first step prevents the sender of the transaction spending the non-existent bit coin, and the second part prevents the sender of the transaction spending other people's bit coin. The second step is to ensure conservation of value.

The payment protocol for bit coin is as follows: suppose that Alice wants to send Bob 11.7 BTC. In fact, Alice hasn’t exactly 11.7 BTC. Suppose that the smallest amount she can get is: 6+4+2= 12. So she can create a transaction with three inputs and two outputs. The first output has a face value of 11.7 BTC, the owner is Bob (Bob's bit coin address), and the second output face value is 0.3 BTC, and the owner is Alice herself, which is change.

Let's see the mining model for generating new blocks:

Each block contains a time stamp, a random number, a primer for the last block (that is hash), and all transactions that have occurred since the last block was generated. This creates a growing Block Chain as time goes by, which is constantly updated to represent the latest state of the bit coin ledger. According to this paradigm, the algorithm to check whether a block is valid is as follows:

Check that whether the last block referenced by the block is exist and valid. Check whether the block's time stamp is later than the previous block's time stamp, and is as early as 2 hours [2]. Check whether the workload proof of the block is valid. Put the final state of the last block to S [0]. Suppose that TX is a trading list of blocks, including n transactions. For belonging to 0... All the I of n minus 1, to state transformation S [I +1] = APPLY(S [I], TX [I]). If any transaction I make a mistake in the state transition, exit the program and return an error. Return to correct, state S [n] is the final state of this block.

Essentially, Remember that it is purely check nod each transaction in the block must provide a correct state transition, but pls.note that the "state" is not coded to the block.it is an abstract concepts remembered by check nodes, for any blocks can be started from the foundation of the state,every transaction of every block is added in order,to calculate the current status exactly. In addition, pay attention to the order of miners’transaction in the block. If there are A and B transactions in one block, the B costs is UTXO created by A. If A is before B, this block is valid, otherwise, the block is invalid.

The interesting part of Block verification algorithm is the concept of "work proof" : SHA256 hash handling for each block, and will get the hash as a length of 256 bits of values, the value must be less than the target value of continuous dynamic adjustment, target value when writing this book is about 2-190. The purpose of the workload proof is to make the creation of the block getting more difficulty, so that can prevent the witch attackers can’t maliciously re-generate the Block Chain. Because SHA256 is completely unpredictable pseudo-random function, the only way to create a valid block is simply trial and error, increase the value of the random number constantly , check if a new hash value is less than the target value. If the current target value is 2-192, means that the average need 2-64 times to generate effective block. In general, the bit coin network resets the target value every 2016 block, ensuring that an block is generated every ten minutes. In order to reward the miners' calculations, each miner who has successfully generated the block has the right to include a deal in the block that has been sent out of without foundation to their own 25BTC. In addition, if the input of the transaction is over than the output, the difference is paid to the miners as "transaction costs". By the way,the only mechanism for the issue bit coin is the prize for miners , which has no bit coin in its creation.

To better understand the purpose of mining, let's analyze what happens when a malicious attacker hits the bit coin network. Because the cryptographic basis of bit coin is very safely,so the attackers will choose the parts that are not directly protected by cryptography to attack: the order of transactions. The attacker's strategy is very simple: send 100BTC to the seller for purchasing (especially electronic items that no need to be mailed). Waiting until the goods are sent. Create another transaction and send the same 100BTC to their owned account,let the bit coin network to believe that transactions sent to its own account was the first transaction. Once the first steps occured, the miners will pack the transaction into the block a few minutes later,suppose it is the 270000 block. About an hour later, there will be five blocks in the back of this block, each block pointing to the deal to confirm the deal indirectly. Then the seller get the payment and sends the goods to the buyer. Because we assume this is a digital product, the attacker can receive the goods immediately. Now the attacker creates another transaction and sends the same 100BTC to his account. If the attacker broadcasts this message to the entire network only, this transaction will not be processed.The miniers will take operation state conversion function APPLY(S, TX) , and found that the transaction wouldn’t be spent in UTXO in state. Therefore, the attacker will split the Block Chain and regenerate the 270000 block based on the 269999 block as the parent block, replacing the old transaction with a new one in this block. Because the block data is different, it requires a re-proof of the workload. In addition, because the attacker generated new 270000th block has different hash, so the original 270001-270005 block are not pointing to it, so the original Block Chain and the attacker's new blocks are separated completely. When spliting the fork Block Chain, chain long branch is considered to be honest the Block Chain,the legitimate miners will mining follow the original 270005th block, the attacker is the only one mining after the new 270000th block.In order to make his Block Chain to be the longest, the attacker needs to have more computing power than the rest of the net to catch up (the 51% attack).

(2) Solutions for DCE

1. View from the technical level

Ethereum is using POW mechanism to relize at present, viewing from the POW system, the TPS of POW COINS and etheric is insufficiency seriously , Ethereum had a massive network congestion, the reason is that using the above POW mechanism can’t support the larger network’s execution speed, also cannot achieve the second level validation mechanism.

So, here we introduce the BTS DPOS mechanism, let’s have a thorough understanding of DPOS principle: after generate a block in bit coin network, an authorization equity certificate system (DPOS) which will verify your trade have 20% of shareholders, and after the currency network statement the transaction has almost irreversible (6 block, about 1 hour), under the DPOS mechanism,your trade has 100% shareholders has been verified through its representative . When using the claim of Decentralized Autonomous Company (Decentralized Autonomous Company, DAC), Decentralized every shareholders according to their shareholding have influence, 51% of voting shareholders result will be irreversible and binding. The challenge is to achieve 51% approval in timely and efficient way. To achieve this goal, each shareholder may grant its voting rights to a representative. The top 100 delegates will generate block in turn.Each delegate is distributed in one time to generate blocks. All representatives will receive 10% of the transaction fee in the average block as reward. If an average block contains 100 shares as a transaction fee, one representative will receive one share for payment.

In the process of splitting, network latency may cause some representatives to fail to broadcast their blocks in time, which will lead to Block Chain splitting. However, this is unlikely to happen, because the representative of the manufacturing block can establish direct connections with representatives of the before and after manufacturing block. The direct connection with your subsequent representatives (and perhaps include the later representative) is to ensure that you can get paid. This model can generate a new block every 30 seconds, and the possibility of Block Chain bifurcation in normal network conditions is small, even if it can be solved in a few minutes. For the behalf of distributed reject service attack (DDOS) , since there are only 100 representatives, it can be imagined that an attacker will reject a service attack on the representative of each generated block. Fortunately, in fact, each representative's identity is a public key rather than an IP address, the threat of this particular attack is easily mitigated .This it will make more difficult to determine a DDOS attack target. The potential direct links between representatives would make it more difficult to generate blocks.

The consensus mechanism based on DPOS can effectively improve the throughput performance of Block Chain network. It will let the network can load more transactions. the online entertainment industry needs a high-throughput, performance-sensitive industry, so the consensus model is more suitable for the DCE.

2. View from the Block Chain service of DCE ecosystem

Through Block Chain technology, combined with Software Development Kit (SDK) developed by the team of DCE, to provide income plan ,marketing plan, pay interface, one button publishing, account and complete virtual asset management tool for developer. Through Block Chain technology, we are strive to change the traditional gaming industry and value chain, to build a more open and transparent ecosystem for the industry, high quality and new entertainment experience for player.

(Ⅳ)Design principles of DCE

(1) compatibility with bit coin related agreements.

Ecosystem of bit coin network is one of the largest technology ecosystem block, according to the influence of network Effect and the Matthew Effect, we have to believe that the bit coin ecological system will futher expand and improves, which means more maturity of code and more developers. When we design the DCE, we try to keep the compatibility of bit coin and Ethereum system ,with experience of community, using the related agreement of bit coin, provide the possibilities of technical . So the DCE will compatible most agreement of Ethereum later, such as network (lighting network) and side chain lightning (side chain) and chain drive technology (drive chain) and Zcash protocol based on zero knowledge proof.

1. Support the millions level users

DCE ecosystem applications require response rapidly, and there are a large number of users in the ecosystem , it need the technical scheme of Block Chain can which can load a large number of daily millions active users, and in some cases, if there is a few user, games may not be operated. Therefore, it is necessary to support the level above millions users, then it has commercial value.

2. Free using for users

DCE ecosystem developers need to provide some free service, if you need to pay in Block Chain before using, this is not appropriate, a Block Chain platform which can be widely used can get a greater range of decentralization for users, developers will be able to get more effective profit strategy.

3. Modular design

In order for maintainability, we will fully decouple the each function module of Block Chain ,intelligent contract the virtual machine layer, the API layer, and application SDK layer. In the core Block Chain function we are using MIT protocol open to community maintenance,.

4. Low latency design

Good user experience requires reliable user feedback and low delay, a long time delay which makes user feel use the DCE ecosystem supported by Block Chain is not better than the entertainment of block design .We design a second level confirmation mode to ensure a good user experience.

5. The safe and scalable design

The Block Chain is designed for DCE ecosystem application, basic design requires flexibility and scalability, any software has bugs, same as the Block Chain’s design, the platform must be strong enough to repair all kinds of new bugs quickly, we design the GVM virtual machine has the authorization mechanism, in order to prevent DDOS attacks and network congestion, normal nodes are not support intelligent contracts running, smart contracts running need Block Chain network resources,only authorized nodes can do it.

6. Product and easily using strategy

Block Chain product is an extremely important strategy, and the current Block Chain application is difficult to understand and use. Easy for using as one of the core advantages of the DCE, it is also the guarantee mode of greater decentralization .

(2) Characteristics of DCE

1. Safe, open and transparent

Based on the characteristics of Block Chain technology, DCE is a decentralized,unchangeable, transparent and open ecosystem.

2.DPOS takes into account of transparency, speed, stability and safety

The fairness and transparency of private chains are often questioned，its pay way is not accepted by mainstream exchanges；The speed and stability of the public chain are often affected by the network situation, such as Ethernet square network congestion situation always happen, is not suitable for gaming, such as gaming which need high request for the stability of the system. Therefor, DCE using DPOS consensus mechanism and issuing - DCE as a payment media of diverse currency circulation ecosystem, used for online entertainment, virtual asset trading, sharing, reward etc.

3.Game general assets

DCE is the perfect solution to the problem of bad debts and long collection cycles: first, by accessing SDK, asset transactions within the game, and service purchases, can be carried out via DCE. Second, DCE is based on Block Chaining, virtual goods, transaction security, and no fraud and bad debts. Third, via intelligent contracts, channels, distribution, R & D revenue can be explicitly confirmed by all parties, and can not be changed after confirmation. Finally, spending of each player can be transfered to each DCE wallet by smart contract immediately , realize account synchronously.

4.New experiences of making money in playing

DCE to ensure that the DCE is realized, and the game player can obtain virtual assets by the game, and then get the DCE via the virtual assets transferred to other game player , player can also enjoy the new experience of money except playing.

5.Sharing reward mechanism

Players through the diverse currency circulation ecosystem of shared communities to join the relevant lottery game fans circle, not only improve the viscosity and loyalty of players, but also to help the community spontaneously invite friends to participate in gaming. After inviting new players successfully, the inviter get virtual asset rewards such as DCE from the community or gaming activities. The more new players are invited, the more benefits they got, and spread the depth of the game's ability. Since virtual assets can obtain DCE with changing cash security through transactions, the incentive mechanism of DCE will be more effective than the normal reward mechanism. At the same time, the mechanism based on the smart contract will share the pays rewards automatically, and the DCE reward system can easily gain the trust of the player.

（Ⅴ）DCE implementation plan

（1）DCE implementation scheme

Bit coin and Ethereum establish a public chain via centralization.The purpose of DCE is to establish a public chain which is centralization of DCE ecosystem, through the high performance and strategy mechanism to ensure that the whole network without obstruction, realize the flow of assets point-to-pointlow.

（2）Account model

A new account can be created freely in the DCE. Based on the human identifiable account model, the account address and name can be clearly identified by an identifiable code name. You can also set name of spaces and organize hierarchically.

（3）Smart contracts and virtual machines

EVM of Ethereum is unique Block Chain virtual machine for testing widely, in the foreseeable future, EVM will become an important virtual machine of system Block Chain , Solidity pioneering defined form which based on the language of Block Chain. In addition, Java script has a fast and flexible language system, ES2015 is laying the important position of JavaScript in the Internet industry, GVM (Game chain Virtual Machine) design can extend language module, compatible with EVM of Ethereum , by Solidity, also support Java script, compatible with a variety of design patterns and language habits.

（4）DCE system

DCE is the specified currency of diverse currency circulation ecosystem, also as a payment tool for performing intelligent contracts, and as the crowd funding currency which centralization the gaming projects, the network contains its own built-in currency DCE, and play a dual role, mainly to provide liquidity for various digital asset transactions,the more important is to provide a mechanism for pay transaction cost.

（5）Consensus model

In the selection of consensus mechanism, according to the principle of consensus reliability and the centralization, we finally select the consensus mechanism based on DPOS as the basic consensus mechanism of public chain.There were more discussions about consensus mechanisms in community before, from POW to POS then DPOS, and then to the BFT consensus mechanism proposed by Hyper Ledger. The essence of consensus mechanism is how to achieve data consistency in a distributed system by some algorithms. Discussion on the consensus mechanism will eventually return to the consistency problem of distributed system of computer field, there were many studied and results in this field before, such as FLP theorem and CAP theorem guide people how to design a consensus mechanism according to request in details. We employ the DPOS to fuse the TPOS mechanism.

POW mechanism

In the bit coin network, the miners participate in the verification process of the bit coin network through client’s terminal of bit coin, to collide Hash value randomly, when the miners calculate Hash value , when meet certain conditions, we will say that the miners dug a block. The Hash (A) < M/D- Hash function represents the two times calculation of the SHA256 value in the range of [0, M], D is a integer of[1, M], the SHA256 mining algorithm of the bit coin network can let each node verify blocks’ validity

quickly, and each block of Block Header will change with the difference of and Nonce extra Nonce. The mining difficulty will be dynamic adjustmented based on the hash rate of network,according to the consensus protocol, when the network time has bifurcation, we will select the block contains more workload as a valid block. After according to the different mining algorithms, there are other Proof of Work algorithm, such as the Lite coin Script algorithm, X11 Dark coin algorithm, the designed purpose is to resist the algorithm concentration, which ensure the network centralization. However, the POW mechanism is heavily affected by performance constraints and does not apply to performance intensive industries.

DPOS Mechanism

DCE diverse currency circulation ecosystem optimization model consensus mechanism, on the basis of existing consensus model in the Block Chain, we optimize the DPOS (Delegated Proof of Stake) algorithm, under this algorithm, the user DCE can select the new one generated of new blocks by agreed voting system continuously . Those involved in generating new blocks will have the opportunity to generate new blocks with corresponding shares.The wonderful entertainment block generating speed is 3 seconds, in this 3 seconds, there is only one block generator that can generate new blocks, if the new block is not generated in the established time, this block will be ignored, if there is a block or more blocks are ignored, there will be 6 or more of blocks will be spaced.Using the generation model of DCE Block , each block is circulating from 21 blocks, after every 21cycles, independent block formation will be generated, the front confirmed 20 blocks will be selected automatically then the last generator will be generated in accordance with the proportion of generation, these selected generation use a block of time determined by the pseudo-random algorithm,and determine the random generation algorithm will all build maintain a balance with the same generation and other links, if a generation missed a block, and then did not generate any new block within 24 hours, he will be removed from the queue, until he re link the Block Chain, and notify the Block Chain I can rebuild the block, this way is proved to be reliable miss block by minimizing, to ensure network operation steady . Normally, the 1 DPOS Block Chain won’t bifurcate because the block generator is not generated by the competition but by cooperation, once there is bifurcation, consensus will automatically switch into the longest block. Double flowers will not appear in this case.

Transaction confirmation

A typical DPOS Block Chain is where 100% of the blocks are involved, and a transaction is confirmed once the 99.9% is confirmed. There will be some special circumstances, if a Block Chain software bug come out, or network congestion, or malicious block generated it will create two bifurcation, a node must wait for confirmation of 15 in 21 blocks,meet in a typical configuration, the normal waiting time is 45 seconds.In default, all nodes are determined and 15 cannot be withdrawn in 21. And you won't switch to that forked block.

TPOS（Transaction as Proof of Stake）algorithm

Each transfer of the DCE needs to include the first block of the previous block. Hash has two purposes for it:

1. prevent replay attacks on bifurcated branches

2. indicate which network is at the fork

（Ⅵ）System model

Account model/font

DCE ecosystem is a form of strong ecological accounts, accounts for human is readable, name is decided by the creator, establishing all accounts need to charge,at the same time, it also supports name the space ,in the content of centralization , the game designer will provide all cost for create an account requested. There is no need to register in another game upon it is created..

Economic model:

In economic system, we designed the DCE currency model, the game currency stock model game coin model, game assets include: game account, game props, games, video game peripherals gold assets, game sharing mode etc,the game currency stock model include competitive field, competition model, point to point competition, athletics team sports game model. Ecosystem include: Mining ecology, war ecology, video sharing, ecology etc., the game team can issue assets on the chain, take new business models for the game.

（Ⅶ）Decentralized the game applications (DGAME)

DCE system fully support the decentralization of the game application from technical level, especially by introducing the mobile terminal strategy , productization the different idea of DGAME, taking Block Chain technology to more users and game industry.For example,decentralization the social,decentralization the store,and decentralization game domain service, decentralization the share service, change the existing gaming market and business models by the introduction of incentive mechanism and the deeper use of shared economy concept..

DCE Block Chain technology provides the infrastructure for building Decentralized Game. In the DCE, through the improvement design of API and distribution of Docker, simplify the preparation of developers, so that developers can go ahead the corresponding development work quickly,and develop high-quality DGAME through inner Token incentive.

In the DCE, it can support the needs of a variety of gaming applications: such as entertainment、financial、social and equity industry in the gaming. In addition, the intelligent contract based on the DCE can realize the flow of more complex gaming assets through the fully compiled programming language of Turing.

（Ⅷ）Application ecology of mobile terminal

The mobile terminal application is an important part of realize technology, in the DCE, we not only fully support and promote mobile application strategy, but aslo we will be with the third party developers, provide users with mobile terminal services together, which include mobile wallet, mobile terminal DGAME application,intelligent contract of mobile terminal,video broadcast application service etc. We also encourage developers from third parties to join us to promote the "Block Chain" technology in the gaming, to develop mobile terminal services which normal users can use. The problem of Block Chain

is the heavy node, for mobile computation , which can confirm the application in light quickly is more suitable for users, so we design the peripheral node, we call it as a Moon node, Moon node around the Earth node, provides the basis for supporting mobile application.

（Ⅸ）Market strategy

Early user acquisition strategy the introduction of high quality gaming

To successfully establish a new ecosystem, participants in the system must achieve sufficient clustering effect (Critical mass),the logic for DCE to achieve more user as below:

DCE sharing community and individual Block Chain team only do Block Chain services don't do the difference of game, DCE team is the expert in the online entertainment industry, at the same time, DCE sharing community ensures a lot of quality games is involved in.

（2）Mid term user acquisition strategy - many player sharing (early majority)

The DCE chain creates a very effective sharing mechanism by creating the game's universal asset - DCE, and using DCE as a shared reward. Game player can earn DCE by sharing process into the game, DCE can be used not only for buying virtual assets, but aslo can be the ability of change it into cash which ensured by entertainment chain, more new game player invited, the profit is bigger, the deeper ability of spread mining game. At the same time, the players who share the game will have higher viscosity and loyalty, and the ARPU of the game can be improved accordingly.

DCE entertainment sharing user community ecological system will be fully established, to attract game player with high-quality game, game player sharing will attract more player, and finally by the quantity and quality of the game player to attract more game access DCE..

（3）Late user acquisition strategy - play speculation coins

The introduction of the concept of playing speculation coins, players get virtual assets through the game, and sold on the trading platform in exchange for DCE. DCE as diverse currency circulation ecosystem entertainment sharing common assets within the community, it can be changed to cash,also can invest in other communities’ game, can earn DCE from playing, currency speculation can also be used after the play, entertainment sharing community will open up gaming and investment coins encryption of the segment, to bring a new experience for the online entertainment industry and encryption currency industry.

（4）business model

The depth understanding of the online entertainment industry, we are very clear to completely replace the payment channel by channel monopoly is not realistic, so DCE will start with three channels,there is the website download,the long tail platform(it is less then 5 million monthly in the platform ).The above three channels accounted for 20% of the global market, diverse currency circulation ecosystem's goal is to become the market leader in a year, the market share is expected to reach 10%,diverse currency circulation ecosystem annual market will reach $2 billion based on the global gaming industry scale of 100 billion dollars in 2017.

（Ⅸ）Presentation and distribution of DCE

（1）DCE introductionntation?

Diverse currency circulation ecosystem is DCE, total circulation: 86 million.

（2）Allocation scheme

（3）Private reservation amount: 25.8 million DCE coins (5%)

（Ⅺ）Planning for Capital utilization

（1）Using detailsan8v

1.R & D: Planning researcher and developers accounted for 80%, other personnel accounted for 20%. The team is expanded to 20-50 people, depending on the business development schedule and the financing scale.

2.Market promotion: Establish the developer community, user community, market education, and ensure the market attention.

3.Law: to provide legal compliance guidance service for the process construction of DCE.

4.Reserve money retained: the retention of certain reserves, for the wonderful entertainment chain ecosystem services.

（2）Capital allocation diagram

If the private placement is expected, the planned using will be distributed as follows:

More details can visit DCE official web: http://www.maecweb.com/

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