CN111522826A - Bidding transaction processing method and system based on block chain and related nodes - Google Patents
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Abstract
The invention provides a bidding transaction processing method and system based on a block chain and related nodes, wherein the nodes of bidding transaction participants form a block chain network; the bidding transaction processing method comprises multiple sets of bidding, wherein one set of bidding comprises the following steps: selecting a transaction processing node from the bidding transaction participant nodes; the transaction initiating node submits a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network; the transaction processing node receives a plurality of transaction statements; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; sending a settlement processing request to a block chain network; and the transaction initiating node receives the settlement processing request and carries out cash and asset exchange processing. The technical scheme realizes efficient, safe and reliable processing of the bidding transaction.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a bidding transaction processing method and system based on a block chain and related nodes.
Background
Currently, traditional bid transactions have the following characteristics: 1) in the traditional centralized transaction, price bidding depends on a centralized platform to obtain quotes, price bidding match, registration and the like, and has higher requirements on the credit and risk bearing capacity of transaction center nodes; 2) in order to realize centralized transaction, assets need to be hosted in an asset hosting mechanism, the centralized asset hosting mechanism carries out settlement transfer of the assets, and risks and settlement conditions of a time point need to be obtained and risk processing is carried out during the transfer; 3) the centralized trading facility has high requirements on the physical performance of a single point and the physical connection performance of a trader and a trading system. Due to the above characteristics, the centralized trading system bears financial market risk, and has high operation cost, limited capacity and high product and client expansion cost.
Meanwhile, the traditional bidding transaction is applied to a decentralized block chain, and the continuous bidding with time priority and price priority has the problems that price priority is difficult to meet, the requirement of the transaction on node physical performance is high, and information feedback is not timely.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a bid transaction processing method based on a block chain, which is used for realizing the efficient, safe and reliable processing of bid transactions, wherein nodes of bid transaction participants form a block chain network; the block chain-based bid transaction processing method comprises a plurality of times of aggregate bid processing, wherein one aggregate bid processing comprises the following steps:
the bidding trading participant node selects at least one bidding trading participant node as a trading processing node;
a transaction initiating node in the bidding transaction participant nodes submits a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network;
the transaction processing node receives a plurality of transaction reports sent by the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; sending a settlement processing request to a block chain network;
and the transaction initiating node receives a settlement processing request sent by the blockchain network and carries out cash and asset exchange processing according to the settlement request.
The embodiment of the invention also provides a bidding transaction processing method based on the block chain, which is applied to a bidding transaction initiating node and used for realizing the efficient, safe and reliable processing of bidding transaction, wherein nodes of bidding transaction participants form a block chain network; the bidding transaction processing node is selected by the bidding transaction participant node, and the bidding transaction processing method comprises the following steps:
submitting a transaction statement according to the requirement;
checking and freezing the related funds and assets according to the contents of the transaction statement;
sending the transaction statement to the blockchain network;
receiving a settlement processing request corresponding to a transaction statement sent through a block chain network;
and carrying out fund and asset cashing treatment according to the settlement request.
The embodiment of the invention also provides a bid transaction processing method based on the block chain, which is applied to bid transaction processing nodes and used for realizing efficient, safe and reliable processing of bid transactions, wherein the bid transaction participant nodes form a block chain network; the bidding transaction processing node is selected by the bidding transaction participant node, and the bidding transaction processing method comprises the following steps:
receiving a plurality of transaction statements sent through a blockchain network;
according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports;
and sending the settlement processing request to the block chain network.
The embodiment of the invention also provides a bidding transaction processing system based on the block chain, which is used for realizing the efficient, safe and reliable processing of bidding transactions, and the nodes of the bidding transaction participants form a block chain network; the bid transaction processing system includes:
a transaction initiation node of the bidding transaction participant nodes for submitting a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network; receiving a settlement processing request sent by a block chain network, and carrying out cash and asset exchange processing according to the settlement request;
at least one transaction processing node selected by the bidding transaction participant nodes for receiving a plurality of transaction statements sent over the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; and sending the settlement processing request to the block chain network.
The embodiment of the invention also provides a bidding transaction initiating node based on the block chain, which is used for realizing the efficient, safe and reliable processing of bidding transaction, and the nodes of bidding transaction participants form a block chain network; the bidding trading processing node is selected by a bidding trading participant node, and the bidding trading initiating node comprises:
the first receiving unit is used for submitting a transaction statement; receiving a settlement processing request sent through a blockchain network;
the first processing unit is used for carrying out checking and freezing processing on related funds and assets according to the contents of the transaction report; carrying out fund and asset cashing and paying treatment according to the settlement request;
and the first sending unit is used for sending the transaction statement to the blockchain network.
The embodiment of the invention also provides a bidding transaction processing node based on the block chain, which is used for realizing the efficient, safe and reliable processing of bidding transaction, and the nodes of bidding transaction participants form a block chain network; the bid transaction processing node is selected by a bid transaction participant node, the bid transaction processing node comprising:
a second receiving unit, for receiving a plurality of transaction reports sent through the blockchain network;
the second processing unit is used for carrying out matching and deal registration processing on the transactions related to all transaction reports according to a preset transaction time interval and on the basis of a quoted price priority deal principle in a preset time period;
and a second sending unit for sending the settlement processing request to the blockchain network.
The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the processor implements the above block chain-based bid transaction processing method.
An embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program for executing the above block chain-based bid transaction processing method.
The bidding trading participant nodes in the technical scheme of the bidding trading processing based on the block chain form a block chain network; the block chain based bid transaction scheme includes a multiple-set bid process, wherein a set bid process includes: the bidding trading participant node selects at least one bidding trading participant node as a trading processing node; a transaction initiating node in the bidding transaction participant nodes submits a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network; the transaction processing node receives a plurality of transaction reports sent by the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; sending a settlement processing request to a block chain network; the transaction initiating node receives a settlement processing request sent by a block chain network, and performs cash and asset exchange processing according to the settlement request, and the technical scheme is applied, so that the bid transaction is efficiently, safely and reliably processed.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a block chain based bid transaction processing method applied to the system in an embodiment of the present invention;
FIG. 2 is a schematic diagram of block chain based bid transaction processing in an embodiment of the present invention;
FIG. 3 is a block chain based bid transaction processing method applied to a bid transaction initiating node according to an embodiment of the present invention;
FIG. 4 is a block chain based bid transaction processing method applied to a bid transaction processing node in an embodiment of the present invention;
FIG. 5 is a block chain based bid transaction processing system according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a bidding transaction initiating node according to an embodiment of the present invention;
figure 7 is a block diagram of a bid transaction processing node in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before the scheme provided by the embodiment of the present invention is introduced, the technical terms related to the embodiment of the present invention are first introduced:
1. block chains: a technology based on a distributed account book and a consensus mechanism is provided, wherein the distributed account book refers to information sharing among nodes, the consensus mechanism refers to that nodes confirm and release information changes in the distributed account book, and the information changes in each node of a block chain have uncollability and traceability.
2. Intelligent contract: in conventional contracts, many problems may be encountered in executing the contract. Execution failure problem, third party participation problem. Even more other problems may be encountered during contract execution.
An intelligent contract is a set of commitments defined in digital form, including agreements on which contract participants can execute the commitments. That is, an intelligent contract is a set of protocols that can automatically perform some manual task. In essence, an intelligent contract is equivalent to building a contract in a computer system that is readable by all parties. Only when a certain event is triggered, it will be executed immediately. For example, A pays XX dollars to B, and B gives A goods.
The intelligent contracts do not necessarily need to be implemented by relying on the blockchain, and part of the basic characteristics of the blockchain determine that the intelligent contracts are more suitable for being implemented on the blockchain. Such as decentralization, tamper resistance of data, high availability, etc. The decentralized mode can guarantee that the whole network backup of the data cannot be interfered by a third party mechanism, and the data can not be tampered. Meanwhile, the method is also beneficial to the following auditing work. High availability does not present the problem of contract non-execution as occurs with current central services or central storage systems subject to attacks or other problems. In general, the best feature that blockchains offer intelligent contracts is the "trust mechanism".
Asset trading on blockchains is an important research direction for blockchain applications. For a long time, two development routes of decentralized trading and centralized trading exist in trading.
At present, centralized trading is the mainstream of blockchain asset trading. Regardless of whether the blockchain digital currency transaction is mainly completed by a centralized transaction, various blockchain-based digital asset transactions are also completed by a centralized transaction, and the centralized transaction exchange often requires a customer to host a digital asset to a certain designated account. The customer submits a transaction statement to the exchange, which completes the transaction match and the settlement transfer. The centralized transaction of the digital assets is not greatly different from the centralized transaction of the traditional assets, the defects of the traditional centralized transaction such as high system requirement, high credit risk and the like exist, and the technical fault of the exchange causes the loss of customers, the theft of the managed assets of the exchange, the rolling and running of the exchange and the like.
Decentralized trading is also more realized on a blockchain, but at present, a decentralized trading exchange does not have an asset pricing function, and the main function of the decentralized trading exchange is to provide trading for trading interested persons. The main transaction protocols of the decentralized exchange include 0x, IDEX, Waves, looping, Kyber Network, decrypted, Nash exchange and AtomicDEX, etc. Where 0x relies on the repeater (Relayer) model to perform the process of matching orders between two traders. IDEX only supports tokens that are etherhouse ecological, using etherhouse as a settlement layer, all content is first updated in its centralized database before it is written into the blockchain. The Waves DEX is derived from the Waves project. Waves have their own blockchain and a token (Waves) of the same name that they are part of to decentralize the transaction platform. Although Waves' order matching engine is open source, order matching is still centralized. The transaction is done through a matcher (middleman) and is therefore not done on the chain.
The traditional bidding transaction has the following characteristics: 1) in the traditional centralized transaction, price bidding depends on a centralized platform to obtain quotes, price bidding match, registration and the like, and has higher requirements on the credit and risk bearing capacity of transaction center nodes; 2) in order to realize centralized transaction, assets need to be hosted in an asset hosting mechanism, the centralized asset hosting mechanism carries out settlement transfer of the assets, and risks and settlement conditions of a time point need to be obtained and risk processing is carried out during the transfer; 3) the centralized trading facility has high requirements on the physical performance of a single point and the physical connection performance of a trader and a trading system. Due to the above characteristics, the centralized trading system bears financial market risk, and has high operation cost, limited capacity and high product and client expansion cost. Meanwhile, the traditional bidding transaction has high demand on mobility due to more transaction opportunities, and is easy to have the situations of flashover and the like. Many scholars think of the rationality of traditional bidding, for example, a scholars think that multiple collective bidding opportunities replace continuous bidding and become the mainstream mode of asset pricing.
Blockchain technology provides a new idea for exchange implementation. The block chain system has a consensus mechanism, an encryption transmission mechanism, a consistency check mechanism and the like, and has the characteristics of decentration and trustiness based on a distributed account book. With the development of the block chain, the new generation block chain has the characteristics of quickly achieving transactions, low-cost credible verification, supporting intelligent contracts and the like. However, the traditional blockchain system supports functions of distributed accounting, point-to-point transfer and the like, but does not have a centralized aggregate bidding transaction mechanism, and a credible asset price cannot be formed.
In view of the technical problems of the existing service data processing method, the inventor proposes a block chain-based bid transaction processing scheme, which is a bid transaction scheme that can be executed decentralized on a block chain, and the scheme has the following characteristics: the proposal bidding has low requirements on node performance and credit and does not need to be completed at a node with high specific credit or physical performance; the scheme can complete the transaction achievement and price discovery function of the traded variety and is competent for the pricing function of the traded variety; and thirdly, the scheme can ensure the safety and reliability of settlement transfer. The block chain based bid transaction processing scheme is described in detail below.
Fig. 1 is a flow chart of a block chain-based bid transaction processing method applied to the system in the embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step 101: the bidding trading participant node selects at least one bidding trading participant node as a trading processing node;
step 102: a transaction initiating node in the bidding transaction participant nodes submits a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network;
step 103: the transaction processing node receives a plurality of transaction reports sent by the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; sending a settlement processing request to a block chain network;
step 104: and the transaction initiating node receives a settlement processing request sent by the blockchain network and carries out cash and asset exchange processing according to the settlement request.
Compared with the continuous bidding processing scheme in the prior art, the bidding transaction processing method provided by the embodiment of the invention has the beneficial technical effects that:
compared with the scheme that price bidding depends on a centralized platform to obtain price quotes, price bidding match, registration and the like to complete continuous price bidding, the requirement on the credit and risk bearing capacity of a transaction center node is high, the requirement on the physical performance of a single point by a centralized transaction facility is high, and the requirement on the physical connection performance of a trader and a transaction system is high.
Compared with the scheme that in the prior art, the asset needs to be hosted in an asset hosting mechanism for realizing centralized transaction, the centralized asset hosting mechanism carries out settlement transfer of the asset, and the safety and the reliability are poor, the scheme provided by the embodiment of the invention obtains the risk and settlement condition at a time point during transfer, the node time of a selected transaction processing node is used as the reference time of one transaction for collective bidding, the risk processing transaction asset and fund are frozen before the transaction, and the safe and reliable performance of bidding transaction processing is ensured.
In addition, the collective bidding adopts the prior bargaining of the quoted price in a specified time period, thereby ensuring that the bidding trading process is safely and reliably carried out.
In conclusion, the bid transaction processing method provided by the embodiment of the invention realizes efficient, safe and reliable bid transaction processing.
In specific implementation, the blockchain in the embodiment of the present invention includes, but is not limited to, various public chains, private chains, and federation chains; the blockchain itself needs to have a consensus mechanism, an encryption mechanism, a consistency check mechanism.
The steps involved in the embodiments of the present invention are described in detail below with reference to fig. 2.
First, the above step 101 is described.
In specific implementation, as shown in fig. 2, the bidding transaction participant node on the blockchain elects or designates to generate the transaction processing node through an election mechanism, that is, based on a certain consensus mechanism, specifically, the transaction initiating node of the blockchain according to the agreement elects the transaction processing node through a consensus algorithm, which may be generated through a DPOS consensus algorithm in a private chain environment. Specifically, each trading participant node may specify one trading processing node, or may specify a plurality of trading processing nodes by comprehensively evaluating network quality, trading behavior of each trading participant node, or the like.
Step 102 is described next.
In specific implementation, as shown in fig. 2, each transaction initiation node designates an asset account and a fund account, and performs fund check freezing and asset check freezing while quoting, that is, the transaction initiation node on the blockchain submits a transaction statement, and simultaneously locks the related fund and asset according to the content of the transaction statement. The transaction initiation node broadcasts its transaction statement (transaction statement) to the blockchain, i.e., the transaction initiation node transmits the transaction statement to the transaction processing node through the blockchain communication mechanism.
In one embodiment, the transaction statement may include quote price data and its corresponding direction and volume of deals.
In specific implementation, the transaction report initiated by each transaction initiating node includes the transaction willingness of a plurality of prices, namely, the quoted price data and the corresponding transaction direction and transaction amount.
Step 103 is described next.
In one embodiment, the block chain-based bid transaction processing method may further include:
after matching and deal registration processing, the transaction processing node writes the set bid price data and deal amount data into a block chain account book and sends the block chain account book and the deal amount data to a block chain network; or under the condition that no bargaining exists at this time, writing the highest buying price data and the lowest selling price data into a block chain account book and sending the block chain account book and the lowest selling price data to a block chain network;
the transaction initiating node receives the current set bidding price data and volume data sent through the blockchain network; or the highest bid price data and the lowest ask price data.
In specific implementation, as shown in fig. 2, the transaction processing node performs matching and deal registration on the transaction according to the time specified by the block chain, sends a settlement request to the transaction initiating node, and sends the current round of aggregate bid price and deal amount, and if no deal exists in the current round, sends the highest bid price and the lowest bid price, and the data is safe and transparent, so that the bid transaction can be safely and reliably processed.
In specific implementation, as shown in fig. 2, the transaction processing node collects all transaction reports and performs matching, and performs bidding processing according to a preset standard set bidding flow, where the quote in the bidding processing cannot be cancelled. If no deal is made, the deal processing node is re-asked to bid and proceed to the next round of bidding. After the bidding transaction is processed, the received transaction statement content is stored in the transaction processing node, funds and assets of the transaction initiating node transfer accounts according to the preset rules of the basic block chain, and the transfer result is written into the block by the transaction processing node. The transaction processing node writes the transaction price and the transaction amount into the block at the same time, but if no transaction is made in a round of transaction, the transaction processing node writes the optimal buying price or selling price of the last transaction into the block.
In one embodiment, the block chain-based bid transaction processing method may further include:
after receiving a plurality of transaction reports sent by the blockchain network and passing the verification, the transaction processing node sends a plurality of processing return receipts to the blockchain network;
the associated transaction initiating node receives a processing receipt sent over the blockchain network.
When the transaction processing node is implemented specifically, the transaction processing node sends a processing receipt to the transaction initiating node after receiving the transaction report of the transaction initiating node and passing the verification, so that the safe and reliable processing of the bidding transaction is ensured.
The inventors have found a technical problem: the trade interval is determined according to the target price fluctuation in one day. The calculation formula is Argmax [ tau ] { thetae(τ)×ψe(τ) < Threshold } to ensure that prices are continuously available.
Using market microstructure technology analysis, assuming a market is composed of N information traders and M liquidity providers, it can be demonstrated that aggregate bid balance exists, which must be satisfied:
where p may be considered the earning expectations of the trader per trade and ψ is the fluctuation in the price of the asset. At this point, the market can be cleared at a balanced price. But the market cannot form a balanced price when the undisclosed information is large, the asset fluctuation is large, and the trader trading profit expectation is high. Therefore, in consideration of the above-described technical problems, the inventors propose that in a plurality of collective bids, transaction rounds must be comprehensively established according to asset fluctuations, unpublished information situations, and the like. Thus, the formula is taken as: argmax τ θe(τ)×ψe(τ)＜Threshold}。
That is, in one embodiment, the preset transaction time interval is determined according to historical information of bid transactions and market information.
When the method is specifically implemented, the transaction is carried out for a plurality of times according to the market conditions or the transaction history, the time interval of each execution is autonomously determined according to the history information and the price of the referent variety, namely the execution time interval is comprehensively specified by the history information of the preorder transaction and the market condition information, and the safety and the reliability of the bidding transaction processing are improved.
In one embodiment, the preset transaction time interval is determined according to the following formula:
Argmax{τ}{θe(τ)×ψe(τ)＜Threshold}； (2)
wherein tau is a transaction time interval; psie(τ) is the asset volatility within τ; thetae(τ) is the unpublished information case within τ, and in applications it is generally assumed that it reaches Brownian motion with constant intensity, then the unpublished information is θ-eA Threshold is an empirical value, typically a constant.
In specific implementation, the preset transaction time interval is determined according to the formula (2), so that the safety and reliability of the bidding transaction processing are further ensured.
Step 104 is described next.
In one embodiment, the block chain-based bid transaction processing method may further include:
after the transaction initiating node finishes the cashing processing, sending a settlement processing finish receipt to the block chain network;
and the transaction processing node receives a settlement processing ending receipt sent by the block chain network and performs block chain accounting processing according to the settlement processing ending receipt.
In specific implementation, as shown in fig. 2, the transaction initiation node performs fund and asset redemption according to a settlement request of the transaction processing node, and sends a settlement completion receipt (settlement completion processing receipt) to the transaction processing node after the redemption is completed, and the block chain accounts the generated transaction, thereby ensuring efficient, safe and reliable processing of the bidding transaction.
In the following, an example is described with reference to fig. 2 to facilitate understanding of how the present invention may be implemented.
The present embodiment illustrates how a matching transaction is implemented in the presence of a transaction processing node, a transaction initiating node.
At T0At the moment, a block chain elects transaction processing nodes through a consensus algorithm according to transaction initiating nodes of a protocol, and under a private chain environment, the consensus algorithm can be generated through a DPOS (distributed data processing) consensus algorithm, so that each transaction participant node designates one transaction processing node, one transaction processing node or a plurality of transaction processing nodes through comprehensive evaluation on network quality, transaction behaviors of each transaction participant node and the like;
at T1At that moment, the transaction initiation node broadcasts its transaction declaration to the blockchain, assuming that the transaction object is gold (g), the order format may be as shown in table 1 below:
| price | Direction of rotation | Open flat | Number of |
| 269(/g) | Ask | Flat plate | 100(g) |
| 268(/g) | Ask | Flat plate | 50(g) |
| 267(/g) | Ask | Flat plate | 20(g) |
| 266(/g) | Ask | Flat plate | 10(g) |
| 265(/g) | Ask | Flat plate | 5(g) |
TABLE 1
The assets and funds recorded in the blockchain ledger can be as shown in table 2 below:
| capital | Assets |
| 300000 | 1000g |
TABLE 2
If the node risk check is passed, the block chain link point locks the fund of the node, the order is broadcasted to all the block chain link points, and the transaction processing node receives and replies that the order is successfully received;
at T2At the moment, the transaction processing node processes the declaration form and obtains a queue:
queue 1: the buy queue can be as shown in table 3 below:
| price | Direction of rotation | Open flat | Number of |
| 269 | Bid | Opening device | 100 |
| 268 | Bid | Opening device | 200 |
| 267 | Bid | Opening device | 500 |
| 266 | Bid | Opening device | 900 |
| 265 | Bid | Opening device | 1000 |
TABLE 3
Queue 2: the sell queue may be as shown in table 4 below:
| price | Direction of rotation | Open flat | Number of |
| 269 | Ask | Flat plate | 1000 |
| 268 | Ask | Flat plate | 800 |
| 267 | Ask | Flat plate | 600 |
| 266 | Ask | Flat plate | 400 |
| 265 | Ask | Flat plate | 100 |
TABLE 4
From the above, it can be seen that the buy queue at 267 has 800g buy and 1100g sell. At this point, the transaction processing node sets the benchmark price to 267, and then evenly distributes 300g of the opening demand to each node with the leveling demand.
T3And at the moment, the transaction processing node sends a settlement request to the transaction initiating node and sends the matched price to the block chain node. If the round has not been committed, the highest bid price and the lowest selling bid price are sent.
T4And at the moment, each node finishes settlement, accounts are booked to the block chain, assets and fund accounts are updated, and the transaction is finished. Meanwhile, calculating the waiting time of the next round according to the fluctuation rate of gold, and preparing to start the bidding of the next round.
In summary, the bid transaction processing scheme has the following advantages: 1) the scheme uses a block chain as a bottom system, the distributed nodes and the central node carry out processing such as quotation collection, bid matching, registration and the like together, and the distributed nodes (selected bid transaction processing nodes) carry out settlement, so that the pressure of the original central node is reduced; 2) the scheme realizes real-time registration and settlement of each round of transaction, and processes the risk of each round of transaction; 3) the scheme can realize 7 x 24 hours of operation and obtain matched reference prices.
Based on the same inventive concept, the embodiment of the present invention further provides a block chain-based bidding transaction processing method, which is applied to a bidding transaction initiating node, as described in the following embodiments. Because the principle of solving the problem of the bidding transaction processing method applied to the bidding transaction initiating node is similar to that of the bidding transaction processing method based on the block chain applied to the system, the implementation of the bidding transaction processing method applied to the bidding transaction initiating node can refer to the implementation of the bidding transaction processing method based on the block chain applied to the system, and repeated details are omitted. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
FIG. 3 is a block chain-based bid transaction processing method applied to a bid transaction initiating node according to an embodiment of the present invention, where the bid transaction participant nodes form a block chain network; the bid transaction processing node is selected by the bid transaction participant node, as shown in fig. 3, and the bid transaction processing method includes the following steps:
step 201: submitting a transaction statement;
step 202: checking and freezing the related funds and assets according to the contents of the transaction statement;
step 203: sending the transaction statement to the blockchain network;
step 204: receiving a settlement processing request corresponding to a transaction statement sent through a block chain network;
step 205: and carrying out fund and asset cashing treatment according to the settlement request.
In one embodiment, the bid transaction processing method applied to the bid transaction initiating node may further include: receiving the current set bidding price data and volume data sent through the blockchain network; or the highest bid price data and the lowest ask price data.
In one embodiment, the bid transaction processing method applied to the bid transaction initiating node may further include: a processing receipt sent over the blockchain network is received.
In one embodiment, the bid transaction processing method applied to the bid transaction initiating node may further include: and after the cashing processing is finished, sending a settlement processing finished receipt to the block chain network.
Based on the same inventive concept, the embodiment of the present invention further provides a bid transaction processing method based on a block chain, which is applied to a bid transaction processing node, as described in the following embodiments. Because the principle of solving the problem of the bidding transaction processing method applied to the bidding transaction processing node is similar to that of the bidding transaction processing method based on the block chain applied to the system, the implementation of the bidding transaction processing method applied to the bidding transaction processing node can be referred to the implementation of the bidding transaction processing method based on the block chain applied to the system, and repeated details are omitted. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
FIG. 4 is a block chain based bid transaction processing method applied to bid transaction processing nodes that form a block chain network according to an embodiment of the present invention; the bid transaction processing node is selected by a bid transaction participant node, as shown in fig. 4, and the bid transaction processing method includes the steps of:
step 301: receiving a plurality of transaction statements sent through a blockchain network;
step 302: according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports;
step 303: and sending the settlement processing request to the block chain network.
In one embodiment, the bid transaction processing method applied to the bid transaction processing node may further include:
after match and deal registration processing, writing the set bidding price data and deal amount data into a block chain account book; or under the condition that no bargaining is carried out at this time, writing the highest buying price data and the lowest selling price data into a block chain account book;
after match and deal registration processing, sending the aggregate bid price data and the deal amount data to a block chain network; or under the condition that no bargaining exists at this time, the highest buying price data and the lowest selling price data are sent to the block chain network.
In one embodiment, the bid transaction processing method applied to the bid transaction processing node may further include: after receiving the transaction receipts sent through the blockchain network and the transaction receipts pass the verification, sending the processing receipts to the blockchain network.
In one embodiment, the bid transaction processing method applied to the bid transaction processing node may further include:
receiving a settlement processing end receipt sent by a block chain network;
and carrying out block chain accounting processing according to the receipt after the settlement processing is finished.
In one embodiment, the bid transaction processing method applied to the bid transaction processing node may further include: when a plurality of transaction processing nodes are selected in the process of one-time aggregate bidding processing, transaction statement consistency checking processing is carried out among the transaction processing nodes.
Based on the same inventive concept, the embodiment of the present invention further provides a block chain based bid transaction processing system, as described in the following embodiments. As the principle of solving the problem of the block chain-based bid transaction processing system is similar to the block chain-based bid transaction processing method applied to the system, the implementation of the block chain-based bid transaction processing system can refer to the implementation of the block chain-based bid transaction processing method applied to the system, and repeated details are omitted. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
FIG. 5 is a block chain based bid transaction processing system according to an embodiment of the present invention, wherein the bid transaction participant nodes form a block chain network; as shown in fig. 5, the bid transaction processing system includes:
a transaction initiation node 01 of the bidding transaction participant nodes for submitting a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network; receiving a settlement processing request sent by a block chain network, and carrying out cash and asset exchange processing according to the settlement request;
at least one transaction processing node 02 selected by the bidding transaction participant nodes for receiving a plurality of transaction statements sent over the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; and sending the settlement processing request to the block chain network.
In one embodiment, the transaction processing node may be further configured to write the current set bid price data and the volume data into the block chain ledger and send the block chain ledger to the block chain network after match and deal registration processing; or under the condition that no bargaining exists at this time, writing the highest buying price data and the lowest selling price data into a block chain account book and sending the block chain account book and the lowest selling price data to a block chain network;
the transaction initiating node can also be used for receiving the current set bidding price data and volume data sent through the blockchain network; or the highest bid price data and the lowest ask price data.
In one embodiment, the transaction processing node may be further configured to send a plurality of processing receipts to the blockchain network after receiving the plurality of transaction receipts sent through the blockchain network and checking the transaction receipts;
the associated transaction initiating node may also be configured to receive a processing receipt transmitted over the blockchain network.
In one embodiment, the transaction initiation node may be further configured to send a settlement processing end receipt to the blockchain network after the redemption processing ends;
the transaction processing node can also be used for receiving a settlement processing ending receipt sent by the blockchain network and carrying out blockchain accounting processing according to the settlement processing ending receipt.
In one embodiment, when multiple transaction processing nodes are selected during a collective bidding process, the multiple transaction processing nodes may also be used to verify transaction statement consistency among the multiple transaction processing nodes.
In one embodiment, the preset transaction time interval may be determined according to historical information of bid transactions and market information.
In one embodiment, the preset transaction time interval may be determined according to the following formula:
Argmax{τ}{θe(τ)×ψe(τ)＜Threshold}；
wherein tau is a transaction time interval; psie(τ) is the asset volatility within τ; thetae(τ) is the unpublished information case within τ, and Threshold is an empirical value.
In one embodiment, the transaction statement may include quote price data and its corresponding direction and volume of deals.
Based on the same inventive concept, the embodiment of the present invention further provides a bidding transaction initiating node based on a block chain, as described in the following embodiments. As the principle of solving the problem of the block chain-based bidding transaction initiating node is similar to the block chain-based bidding transaction processing method applied to the system, the block chain-based bidding transaction initiating node can be implemented by referring to the implementation of the block chain-based bidding transaction processing method applied to the system, and repeated details are omitted. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
FIG. 6 is a schematic structural diagram of a bidding transaction initiating node according to an embodiment of the present invention, where the bidding transaction participant nodes form a block chain network; the bid transaction processing node is selected by the bid transaction participant node, as shown in fig. 6, and the bid transaction initiation node includes:
a first receiving unit 011 for submitting a transaction statement; receiving a settlement processing request sent through a blockchain network;
a first processing unit 012, configured to perform a check freezing process on the funds and assets involved according to the contents of the transaction statement; carrying out fund and asset cashing and paying treatment according to the settlement request;
a first sending unit 013, configured to send the transaction statement to the blockchain network.
In an embodiment, the first receiving unit 011 can be further configured to receive the current set bid price data and volume data sent through the blockchain network; or the highest bid price data and the lowest ask price data.
In one embodiment, the first receiving unit 011 can be further configured to receive a processing receipt transmitted through the blockchain network.
In one embodiment, the first sending unit 013 can be further configured to send a receipt of the end of the settlement processing to the blockchain network after the end of the redemption processing.
Based on the same inventive concept, the embodiment of the present invention further provides a block chain-based bid transaction processing node, as described in the following embodiments. As the principle of solving the problem of the block chain-based bid transaction processing node is similar to the block chain-based bid transaction processing method applied to the system, the implementation of the block chain-based bid transaction processing node can refer to the implementation of the block chain-based bid transaction processing method applied to the system, and repeated details are omitted. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
FIG. 7 is a block diagram of a bid transaction processing node according to an embodiment of the present invention, with bid transaction participant nodes forming a block chain network; the bid transaction processing node is selected by a bid transaction participant node, as shown in fig. 7, and includes:
a second receiving unit 021, configured to receive a plurality of transaction tickets sent through the blockchain network;
a second processing unit 022, configured to perform matching and deal registration processing on the transactions related to all transaction statements according to a preset transaction time interval and based on a quoted price priority deal principle in a preset time period;
a second transmitting unit 023, configured to transmit the settlement processing request to the blockchain network.
In one embodiment, the bid transaction processing node may further comprise: the writing unit is used for writing the current set bidding price data and the volume data into the block chain account book after the matching and transaction registration processing; or under the condition that no bargaining is carried out at this time, writing the highest buying price data and the lowest selling price data into a block chain account book;
the second sending unit 023 may be further configured to send the current set bid price data and the volume of trades data to the blockchain network after the match and deal registration processing; or under the condition that no bargaining exists at this time, the highest buying price data and the lowest selling price data are sent to the block chain network.
In one embodiment, the second sending unit 023 is further configured to send a plurality of processing receipts to the blockchain network after the plurality of transaction receipts sent through the blockchain network are received and verified.
In one embodiment, the second receiving unit 021 may be further configured to receive a settlement processing end receipt sent through the blockchain network;
the transaction processing node may further include: and the accounting processing unit is used for carrying out block chain accounting processing according to the receipt after the settlement processing is finished.
In one embodiment, the transaction processing node may further comprise: and the consistency processing unit is used for carrying out the consistency processing of the check transaction statement among the transaction processing nodes when the transaction processing nodes are selected in the process of one-time set bidding processing.
The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the processor implements the above block chain-based bid transaction processing method.
An embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program for executing the above block chain-based bid transaction processing method.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the beneficial technical effects that:
1) the centralized exchange relies on the continuous operation of a single point of a central system, once the center fails, the transaction cannot be completed, and the system is weak. The embodiment of the invention can carry out aggregate bidding transaction at the decentralized node, does not depend on the continuous work of a certain node, and has stronger robustness.
2) The embodiment of the invention uses a pricing match-based transaction method, and each transaction does not need to be sequenced, so that the dependence of a block chain transaction system on synchronization and network delay is reduced.
In conclusion, the technical scheme provided by the embodiment of the invention realizes the efficient, safe and reliable processing of the bidding transaction.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A bid transaction processing method based on a block chain is applied to a system and is characterized in that nodes of bid transaction participants form a block chain network; the block chain-based bid transaction processing method comprises a plurality of times of aggregate bid processing, wherein one aggregate bid processing comprises the following steps:
the bidding trading participant node selects at least one bidding trading participant node as a trading processing node;
a transaction initiating node in the bidding transaction participant nodes submits a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network;
the transaction processing node receives a plurality of transaction reports sent by the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; sending a settlement processing request to a block chain network;
and the transaction initiating node receives a settlement processing request sent by the blockchain network and carries out cash and asset exchange processing according to the settlement request.
2. The method of block chain based bid transaction processing of claim 1, further comprising:
after matching and deal registration processing, the transaction processing node writes the set bid price data and deal amount data into a block chain account book and sends the block chain account book and the deal amount data to a block chain network; or under the condition that no bargaining exists at this time, writing the highest buying price data and the lowest selling price data into a block chain account book and sending the block chain account book and the lowest selling price data to a block chain network;
the transaction initiating node receives the current set bidding price data and volume data sent through the blockchain network; or the highest bid price data and the lowest ask price data.
3. The method of block chain based bid transaction processing of claim 1, further comprising:
after receiving a plurality of transaction reports sent by the blockchain network and passing the verification, the transaction processing node sends a plurality of processing return receipts to the blockchain network;
the associated transaction initiating node receives a processing receipt sent over the blockchain network.
4. The method of block chain based bid transaction processing of claim 1, further comprising:
after the transaction initiating node finishes the cashing processing, sending a settlement processing finish receipt to the block chain network;
and the transaction processing node receives a settlement processing ending receipt sent by the block chain network and performs block chain accounting processing according to the settlement processing ending receipt.
5. The block chain-based bid transaction processing method of claim 1, wherein the preset transaction time interval is determined according to history information of bid transactions and market quotation information.
6. The block chain based bid transaction processing method of claim 5, wherein the preset transaction time interval is determined according to the following formula:
Argmax{τ}{θe(τ)×ψe(τ)＜Threshold}；
wherein tau is a transaction time interval; psie(τ) is the asset volatility within τ; thetae(τ) is the unpublished information case within τ, and Threshold is an empirical value.
7. The method of claim 1, wherein the deal ticket includes quoted price data and its corresponding direction and volume of deals.
8. A bid transaction processing method based on a block chain is applied to a bid transaction initiating node and is characterized in that nodes of bid transaction participants form a block chain network; the bidding transaction processing node is selected by the bidding transaction participant node, and the bidding transaction processing method comprises the following steps:
submitting a transaction statement according to the requirement;
checking and freezing the related funds and assets according to the contents of the transaction statement;
sending the transaction statement to the blockchain network;
receiving a settlement processing request corresponding to a transaction statement sent through a block chain network;
and carrying out fund and asset cashing treatment according to the settlement request.
9. A bid transaction processing method based on a block chain is applied to bid transaction processing nodes and is characterized in that bid transaction participant nodes form a block chain network; the bidding transaction processing node is selected by a bidding transaction participant node, and the bidding transaction processing method comprises the following steps:
receiving a plurality of transaction statements sent through a blockchain network;
according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports;
and sending the settlement processing request to the block chain network.
10. A bid transaction processing system based on a block chain is characterized in that nodes of bid transaction participants form a block chain network; the bid transaction processing system includes:
a transaction initiation node of the bidding transaction participant nodes for submitting a transaction statement; checking and freezing the related funds and assets according to the contents of the transaction statement; sending the transaction statement to the blockchain network; receiving a settlement processing request sent by a block chain network, and carrying out cash and asset exchange processing according to the settlement request;
at least one transaction processing node selected by the bidding transaction participant nodes for receiving a plurality of transaction statements sent over the blockchain network; according to a preset transaction time interval, based on a quoted price priority transaction principle in a preset time period, matching and transaction registration processing are carried out on transactions related to all transaction reports; and sending the settlement processing request to the block chain network.
11. A bidding transaction initiating node based on a block chain is characterized in that bidding transaction participant nodes form a block chain network; the bidding trading processing node is selected by a bidding trading participant node, and the bidding trading initiating node comprises:
a first receiving unit that receives a settlement processing request transmitted through a blockchain network;
the first processing unit is used for carrying out checking and freezing processing on related funds and assets according to the contents of the transaction report; carrying out fund and asset cashing and paying treatment according to the settlement request;
and the first sending unit is used for sending the transaction statement to the blockchain network.
12. A bid transaction processing node based on a block chain is characterized in that bid transaction participant nodes form a block chain network; the bid transaction processing node is selected by a bid transaction participant node, the bid transaction processing node comprising:
a second receiving unit, for receiving a plurality of transaction reports sent through the blockchain network;
the second processing unit is used for carrying out matching and deal registration processing on the transactions related to all transaction reports according to a preset transaction time interval and on the basis of a quoted price priority deal principle in a preset time period;
and a second sending unit for sending the settlement processing request to the blockchain network.
13. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 7 when executing the computer program.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 7.
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