CN108647958A - A kind of digital asset method of commerce and system based on block chain - Google Patents

A kind of digital asset method of commerce and system based on block chain Download PDF

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Publication number
CN108647958A
CN108647958A CN201810247448.1A CN201810247448A CN108647958A CN 108647958 A CN108647958 A CN 108647958A CN 201810247448 A CN201810247448 A CN 201810247448A CN 108647958 A CN108647958 A CN 108647958A
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Prior art keywords
digital asset
transaction
current
asset
circulation
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雷凯
齐竹云
杨力维
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Peking University Shenzhen Graduate School
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Peking University Shenzhen Graduate School
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Priority to CN202211175835.1A priority Critical patent/CN115578097A/en
Priority to CN201810247448.1A priority patent/CN108647958A/en
Publication of CN108647958A publication Critical patent/CN108647958A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/381—Currency conversion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G06Q20/3827—Use of message hashing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange

Abstract

A kind of digital asset method of commerce and system based on block chain, this method realized based on the intelligent contract of block chain, including：Circulation standard contract is issued when receiving the digital asset distribution request that digital asset distribution client is sent according to digital asset to store digital asset to block chain；The digital asset transaction request that record user terminal is sent is received, asset pricing intelligence contract calculates the current price and the current equalization exchange rate of each type digital asset according to the current circulation of each type digital asset, current consumption amount, transaction total amount, the commodity price index that can be bought and commodity amount；Circulation standard contract is issued according to digital asset and the current equalization exchange rate, transaction change intelligence contract are traded digital asset by all digital asset transaction requests.It can determine the value and the exchange rate of digital asset in real time with transaction situation according to market information and the scale of digital asset, ensure that digital asset value stablizes circulation and the equilibrium of the exchange rate.

Description

A kind of digital asset method of commerce and system based on block chain
Technical field
The present invention relates to technical field of the computer network, and in particular to a kind of digital asset method of commerce based on block chain And system.
Background technology
Digital asset on internet generally refers to exist with spreadsheet format and has certain values and economic benefit Digital resource, such as businessman integral, electronic money and payment music.In general, each digital asset system is relatively independent, Digital asset can only circulate in same system, intercommunication can not be carried out between cross-system and mutually converted.But with internet and shared warp The development of Ji, the circulation between a variety of digital assets will become a kind of trend, this is important to realizing effectively being configured with for resource Facilitation.
The basis of digital asset transaction is the common trust for value, both parties and trading rules, but due to each The value judge of digital asset system is difficult to reach unification, and there are prodigious otherness, interests in distribution of interests demand Distribution is difficult to coordinate, this to be difficult to realize free transaction between each digital asset.In order to realize between each digital asset Free transaction, traditional solution is to take centralized transaction institute, can rely on the credit endorsement of exchange, is formulated unified Trading rules realize the transaction between each digital asset according to market match mechanism.However, in numerous digital assets It sets up the authoritative institution that one is approved in many ways and establishes a set of unified trading rules, the meter needed in multiple systems of values Calculation, storage and management cost are inestimable；Moreover, the organizational structure of centralization makes right and information put together, during this makes Concentric mechanism itself is easy under attack or carries out malicious operation, to destroy the operation in market.
Floor layer Technology of the block chain as bit coin combines Distributed Calculation and storage, cryptographic algorithm, distribution one The technologies such as cause property algorithm and intelligent contract construct a kind of decentralization, the whole network common recognition, data transparency, retrospective distribution The network architecture receives highest attention in each fields such as finance, economy and science and technology.
Currently, using block chain realize different digital assets between transaction in terms of, mainly have Ripple (auspicious wave coin), The whole network book keeping operation of block chain and distributed common recognition is utilized in BitShares (bit stock), 0x agreements etc., these digital asset systems Characteristic, provide decentralization Real Time Gross Settlement system, or difference is realized in such a way that the dealing of user's sheet is brought together Circulation between digital asset.But in the price and the exchange rate for determining digital asset, place one's entire reliance upon these methods exterior market Dealing, in this way, in scale deficiency, the extremely asymmetric digital asset market of information, transaction value is highly prone to human factor Influence generate larger fluctuation to cause a deviation from the value of assets itself so that assets are broken one's promise, it is difficult to realize valence Value stablizes circulation peace weighing apparatus.
Invention content
The application provides a kind of digital asset method of commerce and system based on block chain, with to the digital asset in market Equilibrium pricing is carried out, price and the equilibrium rate of exchange of digital asset are automatically determined, ensures the allocation optimum of resource in market.
According in a first aspect, provide a kind of digital asset method of commerce based on block chain in a kind of embodiment, it is applied to Server, the server include digital asset distribution circulation standard contract, transaction change intelligence contract and asset pricing intelligence Energy contract, the method includes：
Receive the digital asset transaction request that user terminal is sent；
Transaction change intelligence contract records all digital asset transaction requests；
Asset pricing intelligence contract according to the current circulation of each type digital asset, current consumption amount, transaction total amount, The commodity price index and commodity amount that can be bought calculate the current price of each type digital asset, and according to described Current price determines the current equalization exchange rate；
Circulation standard contract and the current equalization exchange rate are issued according to digital asset, transaction change intelligence contract is according to all institutes Digital asset transaction request is stated to be traded digital asset；
The digital asset distribution circulation standard contract, the transaction change intelligence contract and the asset pricing intelligently close The intelligent contract about established based on block chain.
According to second aspect, a kind of digital asset transaction system based on block chain is provided in a kind of embodiment, including：
Subscription client, for sending digital asset transaction request to server；
Server, the server include intelligent contract layer, block chain and the general module interacted for realizing the two, institute It states intelligent contract layer to run on the block chain, including digital asset intelligence contract module, transaction change intelligence contract module With asset pricing intelligence contract module；The transaction change intelligence contract module is asked for recording all digital asset transaction It asks, is referred to according to the current circulation of each type digital asset, current consumption amount, total amount of merchandising, the commodity price that can be bought Number and commodity amount calculate the current price of each type digital asset, and determine current equalization according to the current price The exchange rate；What the asset pricing intelligence contract module was used to be established based on block chain according to the digital asset intelligence contract module Digital asset distribution circulation standard contract and the current equalization exchange rate, according to all digital asset transaction requests to number Assets are traded.
According to the third aspect, a kind of computer readable storage medium, including program, described program are provided in a kind of embodiment The method to realize the digital asset transaction based on block chain as above-mentioned can be executed by processor.
Digital asset method of commerce, system and the computer-readable storage medium based on block chain according to above-described embodiment Matter, due to server can according to the current circulation of each type digital asset, current consumption amount, transaction total amount, can purchase The current price of each type digital asset is calculated in the commodity price index and commodity amount bought, and true according to current price Make the current equalization exchange rate, then according to digital asset issue circulation standard contract, make the transaction of all digital assets all in accordance with The current equalization exchange rate carries out, so as to according to itself scale and friendship of the macroscopic information in market and each type digital asset Easy situation determines the value and the exchange rate of digital asset in real time, ensure that the allocation optimum of resource in market.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of server in embodiment；
Fig. 2 is the structure chart of digital asset distribution circulation standard contract；
Fig. 3 is the class figure of digital asset distribution circulation standard contract；
Fig. 4 is a kind of structure chart of the digital asset transaction system based on block chain in specific embodiment；
Fig. 5 is a kind of flow chart of the digital asset method of commerce based on block chain in specific embodiment；
Fig. 6 is the flow chart that digital asset businessman issues digital asset；
Fig. 7 is the structural schematic diagram that businessman's distribution and user buy digital asset；
Fig. 8 carries out the flow chart of different type digital asset exchange between different user.
Specific implementation mode
Below by specific implementation mode combination attached drawing, invention is further described in detail.
Block chain by distributed storage, Encryption Algorithm and common recognition mechanism provide the book keeping operation of the whole network, information transparency and The bottom frame that can not be distorted, intelligent contract are the business logic codes run based on block chain, and therefore, block chain is that intelligence is closed Condition is about provided, intelligent contract is enable to be run on the block chain frame (such as ether mill block chain) of bottom.
In embodiments of the present invention, it is based on block chain, the intelligent contract layer in server is according to each number of types in market Current circulation, current consumption amount, transaction total amount, the commodity price index that can be bought and the commodity amount of word assets are counted in real time The current price of each type digital asset is calculated, and the current equilibrium rate of exchange is determined according to current price, and then according to foundation Digital asset distribution circulation standard contract, make all transaction requests according to the equilibrium rate of exchange carry out.
Fig. 1 shows a kind of structural schematic diagram of server in embodiment, as shown in Figure 1, server includes intelligent contract Layer 1, general module 2 and block chain 3, intelligent contract layer 1 are interacted by general module 2 and block chain 3, so that intelligent contract Layer 1 is run on block chain 3；In the present embodiment, intelligent contract layer 1 includes digital asset intelligence contract module 11, merchandises and convert Change intelligent contract module 12 and asset pricing intelligence contract module 13.Wherein, transaction change intelligence contract module 12 is for taking Business device records all digital asset transaction requests when receiving digital asset transaction request；Asset pricing intelligence contract module 13 is used According to the current circulation of each type digital asset, current consumption amount, commodity price index transaction total amount, can bought The current price of each type digital asset is calculated with commodity amount, and the current equalization exchange rate is determined according to the current price；It hands over It easily exchanges intelligent contract module 12 and is additionally operable to the digital asset established based on block chain according to digital asset intelligence contract module 11 The current equalization exchange rate that distribution circulation standard contract and asset pricing intelligence contract module 13 are determined, according to all digital assets Transaction request is traded digital asset.
Digital asset intelligence contract module 11 constructs a kind of digital asset distribution circulation standard contract, i.e., unified number Assets are issued and mode of doing business, and Fig. 2 and Fig. 3 show that digital asset issues circulation standard in the form of structure chart and class figure respectively The content of contract, as shown in Figures 2 and 3, digital asset distribution circulation standard contract (Digital Assets Standard) are wrapped Include the following contents：
1) digital asset title (name)：The title of digital asset is indicated in the form of character string (string)；It is in class figure In be expressed as：-name：string；
2) digital asset symbol (symbol)：The unit symbol of digital asset is indicated in the form of character string (string)；Its It is expressed as in class figure：-symbol：string；
3) digital asset total circulation (totalSupply)：The total of digital asset is indicated in the form of long (uint256) Circulation；It is expressed as in class figure：-totalSupply：uint256；
4) digital asset account balance array (balanceOf)：With the mapping (mapping of account address and remaining sum (address=>Uint256 the remaining sum for possessing the account and the account corresponding digital asset of digital asset)) is indicated, it is therein Remaining sum is indicated in the form of long；
It is expressed as in class figure：-balanceOf：Mapping (address=>unint256)；
5) digital asset distributing method：With the circulation of purpose account address (address_to) and digital asset (uint256_amount1) it is that parameter issues digital asset, increases the total circulation of the corresponding digital asset in purpose account address；
Digital asset distributing method is expressed as in class figure：Issue (address_to, uint256_amount1), as Digital asset issues function；
6) digital asset consuming method：Number is consumed with accounts of consumption address (address_from) and digital asset (uint256_amount2) it is that parameter consumes digital asset, the corresponding total hair for reducing the corresponding digital asset in accounts of consumption address Row amount；
Digital asset consuming method is expressed as in class figure：Consume (address_from, uint256_amount2), As digital asset consumption function；
7) digital asset transfer method：With sender's account address (address_from), recipient's account address (address_to) and digital assets transfer number (uint256_value) is parameter, in same type of digital asset system The account balance array under the type digital asset system is changed in lower assets transfer, that is, it is corresponding to increase recipient's account address Account balance and single-candidate reduce the corresponding account balance in sender's account address；
Digital asset transfer method is expressed as in class figure：Transfer (address_from, address_to, uint256_value)：Bool, as digital asset transfer function；Wherein, bool indicates that data type is Boolean type；
8) digital asset conversion method：With sender's account address (address_sourceToken), recipient's account Location (address_destToken) and the digital asset number (uint256_sourceAmount) sent are parameter in inhomogeneity Digital asset transfer is carried out between the digital asset of type, the assets number that recipient receives is by asset pricing intelligence contract module 13 The current equalization exchange rate determined obtains；
Digital asset conversion method is expressed as in class figure：Convert (address_sourceToken, address_ DestToken, uint256_sourceAmount)：Bool, as digital asset transfer function.
Based on server shown in FIG. 1, Fig. 4 shows the digital asset transaction based on block chain in a kind of specific embodiment System, as shown in figure 4, issuing client C including subscription client A, server B and digital asset, subscription client A includes " inquiry ", " assets consumption ", " assets transfer " and " assets exchange " function can send phase to server B according to the user's choice The request message of pass, so that server B realizes corresponding function by intelligent contract layer 1；Digital asset issues client C " assets distribution ", " assets mandate " and " commercial scale expansion " function, it is similar with subscription client A, it can be according to digital asset quotient The selection of family sends relevant request message to server B, so that server B realizes corresponding function by intelligent contract layer 1. General module 2 in server B includes visualization front-end module 21, account management module 22, system interaction API (Application Programming Interface, application programming interface) module 23 and Solidity (intelligent contracts Programming language) mode module 24 is designed, the common data interaction between intelligent contract layer 1 and block chain 3 provides interaction Interface.Block chain 3, for example can be ether mill block chain, including enciphering algorithm module 31, common recognition algoritic module 32, script draw Module 33, communication protocol module 34 and data memory module 35 are held up, is passed for realizing the storage of data, the communication of network, data The functions such as defeated encryption and common recognition provide running environment for intelligent contract layer 1.
In practical application, system interaction API module 23 can be Web3 either RPC (RemoteProcedure Call, Remote procedure call)；Hash (Hash) algorithm, such as SHA256 algorithms or SM3 algorithms may be used in enciphering algorithm module 31； PoW (ProofofWork, proof of work) algorithm, PoS (Proof of Stake, equity may be used in common recognition algoritic module 32 Prove) algorithm either both combination；Script engine module 33 can be EVM (Ethereum Virtual Machine, with Too mill virtual machine)；May be used in communication protocol module 34 P2P (Peer to Peer, peer-to-peer network) agreement, broadcast mechanism, At least one of routing management, RPC and communication encryption；Data memory module 35 can be database, such as LevelDB data Library or CouchDB Database Systems etc. can also be file system either cloud storage.It should be noted that it is only for lift Example explanation, is not intended to restrict the invention.
Digital asset transaction system based on shown in Fig. 4, Fig. 5 show the number based on block chain in a kind of specific embodiment Word transaction in assets method, this method are illustrated so that user carries out digital asset transaction as an example, as shown in figure 5, including following step Suddenly：
Step S1：Send digital asset transaction request.
User can submit digital asset transaction request, such as digital asset to sell request, number on subscription client A Asset-buying is asked or digital asset redemption request, and at this moment, digital asset transaction request is sent to server by subscription client A B。
Step S2：Record digital asset transaction request.
Current time, server B receive the digital asset transaction request that all users are sent by subscription client A Afterwards, it triggers intelligent contract layer 1 to run on block chain 3, at this moment, transaction change intelligence contract module 12 will provide all numbers Production transaction request is recorded.
Step S3：Calculate current price.
Asset pricing intelligence contract module 13 is according to current circulation, the current consumption of each type digital asset in market Amount, transaction total amount, the commodity price index that can be bought and commodity amount calculate the current price of each type digital asset, tool Body is realized by step S31 to step S33：
Step S31：Calculate current total volume of issuing.
Asset pricing intelligence contract module 13 is adopted according to the current circulation and current consumption amount of each type digital asset The current total volume of issuing of each type digital asset is calculated with formula (1), formula (1) therein is：
Si=Ii-Ci(1)
Wherein, i is the type of digital asset, SiFor the current total volume of issuing of i type digital assets, IiIt is provided for i type numbers The current circulation of production, CiFor the current consumption amount of i type digital assets, i is the integer more than 0.
Step S32：Calculate circulating rate.
Asset pricing intelligence contract module 13 is calculated according to the transaction total amount of each type digital asset using formula (2) The circulating rate of each type digital asset, the i.e. number of turnover per per day per unit digital asset, formula (2) therein For：
Wherein, ViFor the circulating rate of i type digital assets,For the transaction total amount of i type digital assets,It is lost for transaction, the digital asset number for being defined as being used up in a transaction and this in transaction are lost in transaction The digital asset of number is detained the product of number of days, reflects the brisk trade degree of digital asset, wherein tjFor i type numbers The trading volume of assets jth time, NjFor the consumption figure of i type digital assets jth time, WjFor NjCorresponding delay number of days, m are i types The transaction count of digital asset, j and m are the integer more than 0.
Step S33：Calculate current price.
Asset pricing intelligence contract module 13 is according to calculated current total volume of issuing, circulating rate and each number of types The commodity price index and commodity amount that word assets can be bought calculate the current of each type digital asset using formula (3) Price, formula (3) therein are：
Wherein, pi AFor the current price of i type digital assets, P is that the commodity price that i types digital asset can be bought refers to Number, MiThe commodity amount that can be bought for i types digital asset.
Step S4：Calculate the current equalization exchange rate.
After obtaining the current price of each type digital asset, asset pricing intelligence contract module 13 seeks arbitrary two Ratio between the current price of type digital asset, obtains the current equalization exchange rate.
Step S5：Digital asset is traded.
Asset pricing intelligence contract module 13 is after obtaining the current equalization exchange rate, transaction change intelligence contract module 12 Digital asset transfer method and/or digital asset conversion method in circulation standard contract are issued according to digital asset, with current equal The exchange rate when weighing apparatus exchange rate is transaction, is traded digital asset according to all digital asset transaction requests.Specifically, transaction is converted It changes intelligent contract module 12 to match all digital asset transaction requests, and then is concluded the transaction according to the current equalization exchange rate, For example, the asking using the exchange assets 1 of assets 2 for exchanging the request of assets 2 using assets 1 and user 2 sends that user 1 is sent It asks and is matched, after successful match, transaction change intelligence contract module 12 will issue in circulation standard contract according to digital asset Digital asset conversion method, the assets exchange trading between user 1 and user 2 is reached with the current equalization exchange rate.
In practical application, digital asset businessman can apply the account of oneself to issue client C at any time by digital asset Issue digital asset.Fig. 6 shows that digital asset businessman issues the flow chart of digital asset, as shown in fig. 6, digital asset businessman The account of oneself is logged on digital asset distribution client C, title, symbol and the distribution of the digital asset to be issued are set Then amount initiates digital asset distribution request, digital asset, which issues client C, to issue request and digital asset by digital asset Title, symbol and circulation be sent to server B, server B triggers intelligent contract after receiving digital asset distribution request Layer 1 runs the digital asset distributing method in digital asset distribution circulation standard contract on block chain 3, and digital asset is stored In block chain, while increasing the corresponding total volume of commodities of the type digital asset and circulation, at this time asset pricing intelligence contract Transaction total amount T and current total volume of issuing S in module 13 increase.
Similar, user can also use the account of oneself to be sent by subscription client A and exchange merchandise request, specifically , user logs in the account of oneself on subscription client A, is then sent to server B and exchanges merchandise request, server B connects Triggering intelligence contract layer 1 after exchanging merchandise request is received to run on block chain 3 in digital asset distribution circulation standard contract Digital asset consuming method, at this moment, transaction change intelligence contract module 12 consume digital asset using digital asset consuming method, User account remaining sum is reduced, the transaction total amount T in asset pricing intelligence contract module 13 and current total volume of issuing S is reduced at this time.
In order to clearly embody the purpose of the present invention, make further to illustrate on the basis of the above embodiments It is bright.
Fig. 7 is the structural schematic diagram that businessman's distribution and user buy digital asset, as shown in fig. 7, being sent out according to digital asset Row circulation standard contract, by digital asset transaction platform, (digital asset issues client to three businessmans or digital asset is issued Webpage) three kinds of different digital assets have been issued into market：Assets 1, assets 2 and assets 3, and be respectively that these three are different Title, symbol and circulation is arranged in digital asset.There are two users in market：User 1 and user 2, user 1 are bought by franc Assets 1, user 2 buy assets 2 and assets 3 by franc, at this moment, issue circulation standard contract according to digital asset, transaction is converted The digital asset that intelligent contract module automatically buys user is changed to be stored in corresponding user balance account book.At this point, asset pricing The transaction total amount T and current total volume of issuing S of intelligent contract mould each digital asset in the block increase, and the price of digital asset is automatic Update.In this process, for example businessman relays supervention row assets 1 to market, increases the 1 corresponding total volume of commodities of assets and hair Row amount, the transaction total amount T and current total volume of issuing S of assets 1 can increase in asset pricing intelligence contract module at this time, at this moment will weigh The new price for calculating assets 1 and the current equilibrium rate of exchange, make the price of assets 1 be automatically updated, ensure that exchange rate Equilibrium.
Likewise, user can exchange corresponding commodity using digital asset, for example, user 2 carrys out exchange agent using assets 2 Product issue circulation standard contract according to digital asset, and transaction change intelligence contract module can reduce the account balance of user 2, together When, the transaction total amount T and current total volume of issuing S of assets 2 can be reduced in asset pricing intelligence contract module, at this moment, asset pricing The price for recalculating assets 2 and the current equilibrium rate of exchange are made the price of assets 2 obtain automatically more by intelligent contract module Newly, exchange rate is made to keep in balance.
User can transfer accounts in same type digital asset system, for example, user 1 and user 2 are owned by assets 1, a part of assets 1 are transferred to user 2 by user 1, at this moment, in asset pricing intelligence contract module the transaction total amount T of assets 1 and Current total volume of issuing S is constant, and the price of assets 1 and the current equilibrium rate of exchange keep balance, and circulation mark is issued according to digital asset Quasi- contract, transaction change intelligence contract module reduce the account balance of user 1, accordingly increase the account balance of user 2.
User can also exchange another digital asset using a kind of digital asset, and Fig. 8 is shown between different user The flow chart of different type digital asset exchange is carried out, i.e. user exchanges the stream of another digital asset using a kind of digital asset Cheng Tu；As shown in figure 8, user 1 possesses assets 1, user 2 possesses assets 2, when user 1 need with assets 1 exchange assets 2, simultaneously When user 2 needs to exchange assets 1 with assets 2, user 1 and user 2 are merchandised using the account of oneself by subscription client respectively Platform or webpage transaction platform initiate digital asset transaction request, specifically, user 1 initiates the request that assets 1 exchange assets 2, User 2 initiates the request that assets 2 exchange assets 1；After server receives the two requests, intelligent contract layer is triggered in block chain Upper operation, at this moment, the two requests enter transaction change intelligence contract module, and transaction change intelligence contract module records the two Request, then seeks the current equilibrium rate of exchange to asset pricing intelligence contract module；At this moment, asset pricing intelligence contract module root According to the current circulation of each digital asset, current consumption amount, transaction total amount, the commodity price index that can be bought and commodity amount The price for calculating assets 1 and assets 2 obtains the current equalization exchange rate between assets 1 and assets 2 according to price, then should The equilibrium rate of exchange returns to transaction change intelligence contract module；Transaction change intelligence contract module utilizes digital asset distribution circulation mark Quasi- contract module is traded assets 1 and assets 2 according to the equilibrium rate of exchange, completes the exchange between assets 1 and assets 2；It hands over After being readily accomplished, broadcast and common recognition can be traded by block chain, and be stored in the database of block chain.
In digital asset redemption process shown in Fig. 8, be utilized block chain decentralization distributed network architecture and The whole network book keeping operation, information transparency, real time settlement characteristic, since the exchange rate between assets 1 and assets 2 is by each number in market What the information such as current circulation, current consumption amount and the transaction total amount of assets were calculated in real time, it is not entirely dependent on market machine The exchange of system, because without being influenced by human factor；Each number is monitored in real time by asset pricing intelligence contract module Circulation, consumption figure, commercial scale and velocity of liquid assets of assets etc. obtain city in real time by asset pricing intelligence contract module Every macro-performance indicator of digital asset, can in real time fix a price to each digital asset, ensure that digital asset in Value stablizes circulation and the equilibrium of exchange rate.
Digital asset method of commerce and system provided in this embodiment based on block chain, digital asset businessman can pass through Digital asset issues client and issues circulation standard contract issuing asset according to digital asset, and user can pass through subscription client Purchase, consumption, transfer and the exchange for carrying out digital asset, realize the free issue of each digital asset and different type in market The transaction and intercommunication of digital asset；It makes use of the distributed network architectures of block chain decentralization and the whole network to keep accounts, information is saturating Bright, real time settlement characteristic passes through transaction change intelligence contract mould when receiving the digital asset transaction request of user's transmission Block records all requests, then by asset pricing intelligence contract module according to the current hair of each type digital asset in market Row amount, current consumption amount, transaction total amount, the commodity price index that can be bought and commodity amount calculate each type number money The current total volume of issuing and circulating rate of production, then each type digital asset is calculated by current total volume of issuing and circulating rate It is current price and the equilibrium rate of exchange, and then using digital asset issue circulation standard contract make digital asset according to the equilibrium rate of exchange It is traded；Since asset pricing intelligence contract module can monitor circulation, consumption figure, the commodity rule of each digital asset in real time The items macro-performance indicator such as mould and velocity of liquid assets obtains market macroscopic information, and can be automatically according to these market macroscopic view letters Itself scale and transaction situation of breath and each type digital asset in real time fix a price to each digital asset, automatically determine remittance Rate, because without being influenced by human factor, ensure that the equilibrium for stablizing circulation and exchange rate of digital asset value, into And it ensure that the allocation optimum of resource in market.
It will be understood by those skilled in the art that all or part of function of various methods can pass through in the above embodiment The mode of hardware is realized, can also be realized by way of computer program.When all or part of function in the above embodiment When being realized by way of computer program, which can be stored in a computer readable storage medium, and storage medium can To include：It is above-mentioned to realize to execute the program by computer for read-only memory, random access memory, disk, CD, hard disk etc. Function.For example, program is stored in the memory of equipment, memory Program is executed when passing through processor, you can in realization State all or part of function.It is realized by way of computer program in addition, working as all or part of function in the above embodiment When, which can also be stored in the storage mediums such as server, another computer, disk, CD, flash disk or mobile hard disk In, by download or copying and saving to the memory of local device in, or version updating is carried out to the system of local device, when logical When crossing the program in processor execution memory, you can realize all or part of function in the above embodiment.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not limiting The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple It deduces, deform or replaces.

Claims (10)

1. a kind of digital asset method of commerce based on block chain, which is characterized in that be applied to server, wrapped in the server Digital asset distribution circulation standard contract, transaction change intelligence contract and asset pricing intelligence contract are included, the method includes：
Receive the digital asset transaction request that user terminal is sent；
Transaction change intelligence contract records all digital asset transaction requests；
Asset pricing intelligence contract according to the current circulation of each type digital asset, current consumption amount, transaction total amount, can The commodity price index and commodity amount of purchase calculate the current price of each type digital asset, and according to described current Price determines the current equalization exchange rate；
Circulation standard contract and the current equalization exchange rate are issued according to digital asset, transaction change intelligence contract is according to all institutes Digital asset transaction request is stated to be traded digital asset；
The digital asset distribution circulation standard contract, the transaction change intelligence contract and the asset pricing intelligence contract are The intelligent contract established based on block chain.
2. the method as described in claim 1, which is characterized in that the current circulation according to each type digital asset, Current consumption amount, transaction total amount, the commodity price index that can be bought and commodity amount calculate each type digital asset Current price, and the current equalization exchange rate is determined according to the current price, including：
According to the current circulation and current consumption amount of each type digital asset, each type number is calculated using formula (1) The current total volume of issuing of assets；
According to the transaction total amount of each type digital asset, the circulating rate of each type digital asset is calculated using formula (2)；
The commodity price that can be bought according to the current total volume of issuing, the circulating rate and each type digital asset refers to Number and commodity amount calculate the current price of each type digital asset using formula (3)；
The ratio between the current price of arbitrary two types digital asset is calculated, the current equalization exchange rate is obtained；
The formula (1), (2) and (3) is respectively：
Si=Ii-Ci (1)
Wherein, i is the type of digital asset, the SiFor the current total volume of issuing of i type digital assets, the IiFor i number of types The current circulation of word assets, the CiFor the current consumption amount of i type digital assets, the ViFor the stream of i type digital assets Logical rate, it is describedIt is described for the transaction total amount of i type digital assetsIt is lost for transaction, wherein tjFor the trading volume of i type digital assets jth time, NjFor the consumption figure of i type digital assets jth time, WjFor NjCorresponding delay Number of days, m are the transaction count of i type digital assets, the pi AFor the current price of i type digital assets, the P is i types The commodity price index that digital asset can be bought, the MiFor the commodity amount that i types digital asset can be bought, the i, J and m is the integer more than 0.
3. the method as described in claim 1, which is characterized in that the digital asset distribution circulation standard contract includes with character String form indicate digital asset title and digital asset symbol, indicated in the form of long digital asset total circulation, with The digital asset account balance array of the mapping expression of account address and remaining sum, digital asset distributing method, digital asset are consumed Method, digital asset transfer method and digital asset conversion method；
The digital asset distributing method is to increase the purpose using the circulation of digital asset and purpose account address as parameter The method of the total circulation of the corresponding digital asset in account address；
The digital asset consuming method is to consume number and accounts of consumption address using digital asset to reduce the consumption as parameter The method of the total circulation of the corresponding digital asset in account address；
The digital asset transfer method is for same type of digital asset, with sender's account address, recipient's account Address and digital assets transfer number are parameter, increase the corresponding account balance in recipient's account address and reduce the hair The method of the corresponding account balance in the side of sending account address；
The digital asset conversion method is with the digital asset number of sender's account address, recipient's account address and transmission The method for carrying out digital asset transfer between different types of digital asset for parameter.
4. method as claimed in claim 3, which is characterized in that described according to digital asset distribution circulation standard contract and current The equilibrium rate of exchange, transaction change intelligence contract are traded digital asset according to all digital asset transaction requests, including：
According to the digital asset transfer method and/or the digital asset conversion method, transaction change intelligence contract is with described The exchange rate when current equalization exchange rate is transaction, is traded digital asset according to all digital asset transaction requests.
5. method as claimed in claim 3, which is characterized in that the method further includes：
Receive digital asset title, the digital asset symbol of digital asset distribution request and setting that digital asset distribution end is sent Number and digital asset circulation；
The digital asset title, the digital asset symbol and described of request and setting are issued according to the digital asset Digital asset is stored in block chain by digital asset circulation by the digital asset distributing method.
6. method as claimed in claim 3, which is characterized in that the method further includes：
Receive the exchange merchandise request that user terminal is sent；
According to the exchange merchandise request, digital asset is consumed using the digital asset consuming method.
7. a kind of digital asset transaction system based on block chain, which is characterized in that including：
Subscription client, for sending digital asset transaction request to server；
Server, the server include intelligent contract layer, block chain and the general module interacted for realizing the two, the intelligence Energy contract layer is run on the block chain, including digital asset intelligence contract module, transaction change intelligence contract module and money The intelligent contract module of production price；The transaction change intelligence contract module is used to record all digital asset transaction requests, According to the current circulation of each type digital asset, current consumption amount, transaction total amount, the commodity price index that can buy and Commodity amount calculates the current price of each type digital asset, and determines that current equalization converges according to the current price Rate；The number that the asset pricing intelligence contract module is used to be established based on block chain according to the digital asset intelligence contract module Word assets distribution circulation standard contract and the current equalization exchange rate provide number according to all digital asset transaction requests Production is traded.
8. system as claimed in claim 7, which is characterized in that the digital asset transaction system further includes：
Digital asset issues client, the digital asset name for sending digital asset distribution request and setting to server Title, digital asset symbol and digital asset circulation, so that the server is issued request according to the digital asset and set The digital asset title, the digital asset symbol and the digital asset circulation set, are sent out by the digital asset Digital asset is stored in block chain by the digital asset distributing method in row circulation standard contract.
9. system as claimed in claim 7, which is characterized in that the subscription client is additionally operable to send exchange agent to server Product are asked, so that the transaction change intelligence contract module in the server passes through institute according to the exchange merchandise request State the digital asset consuming method consumption digital asset in digital asset distribution circulation standard contract.
10. a kind of computer readable storage medium, which is characterized in that including program, described program can be executed by processor with Realize such as method according to any one of claims 1 to 6.
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Application publication date: 20181012