CN108960826A - A kind of trading group, trading group building method, storage medium, equipment and system - Google Patents
A kind of trading group, trading group building method, storage medium, equipment and system Download PDFInfo
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- CN108960826A CN108960826A CN201810695527.9A CN201810695527A CN108960826A CN 108960826 A CN108960826 A CN 108960826A CN 201810695527 A CN201810695527 A CN 201810695527A CN 108960826 A CN108960826 A CN 108960826A
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- G06Q20/00—Payment architectures, schemes or protocols
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- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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Abstract
The invention discloses a kind of trading group, trading group building method, storage medium, equipment and systems, belong to block chain technical field.It includes a kind of trading group, a kind of trading group building method, and the hash value of transaction, the first hash value of calculating tail portion transaction are calculated since being traded to head transaction the tail portion of trading group；The hash value for calculating adjacent transaction of trading with tail portion successively calculates the hash value of each transaction according to the sequence, until calculating the hash value of head transaction；The hash value that head is traded is respectively put into the transaction of each of trading group；Calculate the SIGHASH of each transaction, and calculate the signature；A kind of equipment and system.Aiming at the problem that one group of transaction being sent in block chain in the prior art can not accomplish the atomicity of transaction, it can ensure that one group of transaction being sent in block chain or transferring accounts all successful or transferring accounts and all fail.
Description
Technical field
The present invention relates to block chain technical field more particularly to a kind of trading group, trading group building method, storage medium,
Equipment and system.
Background technique
The Transaction Information on block chain includes three parts in the prior art, as shown in Figure 1, TxHash is to transaction content
Hash value；Tx content refers to transaction content；Tx, which signs, refers to the signature of transaction.It is that can guarantee for single transaction atomicity
, when being related to 2 or more transaction, if thinking to send more transactions simultaneously, and keep trading order not to be disturbed, or more
Transaction success simultaneously unsuccessfully then cannot achieve simultaneously, can not accomplish the exchange atomicity of trading group, cause to occur not
Fair transaction；In order to accomplish transaction order, generally require single trade confirmation one transaction after could send it is next
Transaction, moreover, not can guarantee trading order in the case where block rollback and be not reversed.This mode is applied in transaction
Between in the trading group that interdepends when, need more times to propagate each transaction in trading group, trading processing ability is low,
Reduce the spread speed of block.
In block catenary system, most of system only guarantee single transaction atomicity, that is to say, that transaction A otherwise
Failure is run succeeded or executed in block chain, will not say the case where going to half.But independent strokes is handed in block chain
It can not accomplish atomicity between easily.
In currently existing scheme, more transactions cannot be guaranteed the atomicity and succession of transaction.For example, A0 makes a call to ten to A1
Token1, A1 go A2 to buy a token2 with this ten token1 here, this is actually two transactions；Execute this two transaction
Shi Bixu first guarantees that this transaction of A0- > A1 first confirms in block chain, the transaction of A1- > A2 then could be sent, now with side
Case cannot send this two transaction simultaneously.In addition, for example, A1 and A2 will intercourse token1 and token2, A1- > A2 ten
Mono- token2 of token1, A2- > A1, this two transaction, it is necessary to assure otherwise atomicity will lead to wrongful dealing appearance.
That is it one group of transaction being sent in block chain or transfers accounts all successful or transfers accounts and all fail；And currently existing scheme
In, it can not accomplish the atomicity exchanged.
Summary of the invention
1. technical problems to be solved by the inivention
In order to overcome the above technical problem, the present invention provides a kind of trading group, trading group building method, storage medium,
Equipment and system.
2. technical solution
To solve the above problems, technical solution provided by the invention are as follows:
A kind of trading group, the trading group include multiple transaction, and the transaction includes transaction content, hash value and signature,
It is interconnected between transaction and transaction by a Hash chained list, and the head transaction of preservation trading group in every transaction
Hash value.
Preferably, the Hash chained list is the hash value of a wherein transaction in adjacent transaction.
Preferably, the hash value of the transaction includes transaction content, the hash value of next transaction and the sum of transaction.
Preferably, the signature includes transaction content, the hash value of next transaction, the sum of transaction and the head of trading group
The hash value of portion's transaction；Preferably, the sum of the transaction is more than or equal to 2.
Preferably, the whole service charge of trading group is paid by head transaction, other transaction in transaction do not need to pay
Service charge；Preferably, the transaction in the trading group is contract transaction or payment transaction.
A kind of trading group building method, comprising the following steps:
The first step, a kind of trading group according to any of the above one trade from the tail portion of trading group and trade to head
Start to calculate the hash value traded, the first hash value of calculating tail portion transaction；
The trade hash value of adjacent transaction of second step, calculating and tail portion according to the sequence successively calculates each transaction
Hash value, until calculating the hash value of head transaction；
Third step is respectively put into the hash value that head is traded in the transaction of each of trading group；
4th step, the SIGHASH for calculating each transaction, and calculate the signature.
Preferably, the hash value of next transaction is sky in the hash value of the tail portion transaction.
Preferably, SIGHASH mode is SIGHASH_ALL, SIGHASH_NONE or SIGHASH_SINGLE.
A kind of storage medium, for storing the corresponding program of one or more the process described above.
A kind of equipment, the equipment include: one or more processors；Memory, for storing one or more programs,
When one or more of programs are executed by one or more of processors, so that one or more of processors execute
Method described in any of the above item forms a kind of above-described trading group.
A kind of system, including transaction structural unit and trading group structural unit, the transaction structural unit, according to above
The method forms the transaction in a kind of above-described trading group, the trading group structural unit, as described above
Method form a kind of above-described trading group.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
(1) every transaction or mutual independence in the present invention, can execute according to original logical transaction, will not invade
Enter any service logic of transaction；
(2) it trades in the present invention and is interconnected between transaction by a Hash chained list, and saved in every transaction
The head of trading group is traded hash value, in this way, either party in trading group has modified original transaction, can all head be caused to be handed over
Easy variation, to make trading group incorrect, after preventing a side from signing, in addition a side trades to modify, it is ensured that the original of trading group
Sub- property.
Detailed description of the invention
Fig. 1 is the Transaction Information on block chain in the prior art；
Fig. 2 is trading group of the invention and its building method schematic diagram；
Fig. 3 is the trading group and its organigram when transaction amount is 2；
Fig. 4 is the trading group and its organigram when transaction amount is 3；
Fig. 5 is equipment schematic diagram of the invention；
Fig. 6 is the Address d istribution schematic diagram in client；
Fig. 7 be system and equipment on client inside and its between trading group distribution schematic diagram.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with accompanying drawings and embodiments, the present invention is described in detail.
Embodiment 1
A kind of trading group, the trading group include multiple transaction, and the transaction includes transaction content, hash value and signature,
It is interconnected between transaction and transaction by a Hash chained list, and the head transaction of preservation trading group in every transaction
Hash value.
Through this structure, any one transaction is deleted or is modified from trading group, is all easy to judge this
A trading group is wrong.This guarantee is extremely important, and the transaction of the signature that user can trust oneself does not have to be afraid of that its other party is come
Modify any transaction.
Embodiment 2
As shown in Fig. 2, a kind of trading group of the present embodiment, is further improved on the basis of embodiment 1, it is described
Hash chained list is the hash value of a wherein transaction in adjacent transaction.Each transaction in trading group, according to from tail portion transaction to
The sequence of head transaction is constructed, will be adjacent by the way that the hash value of a upper transaction is added in the content currently traded
Two transactions are associated by hash value, finally construct head transaction, and head transaction is put into the content of each transaction
Hash value, when change trading group in any transaction when, which mistake will occurs, any transaction in trading group
Can not all it succeed.
Embodiment 3
A kind of trading group of the present embodiment is further improved, the Hash of the transaction on the basis of embodiment 1 or 2
Value includes transaction content, the hash value of next transaction and the sum of transaction.When constructing this transaction, it is added next
The hash value of transaction, when the content that upper one is traded changes, this transaction can not be set up, and transaction errors occur,
Guarantee can not changing for the trading group each transaction in inside, it is ensured that each transaction success simultaneously fails simultaneously, it is ensured that trading group
Atomicity.The content of transaction may include intelligent contract or intellectual capital, when being related to multinomial intelligent contract or intelligence money in many ways
When production, for the transaction to interdepend, it can be ensured that the atomicity of All Activity when being executed reduces and executes risk, avoids out
Existing wrongful dealing.
Embodiment 4
A kind of trading group of the present embodiment is further improved on the basis of embodiment 1 or 2 or 3, and the signature includes
The hash value that transaction content, the hash value of next transaction, the sum of transaction and the head of trading group are traded；Preferably, described
The sum of transaction is more than or equal to 2.The hash value of next transaction, the sum of transaction and friendship are added in current trading signature construction
The hash value for the head transaction easily organized, it is ensured that the change of associated transaction or the change of this trading group number or trading group head
The change of transaction can embody in current transaction, unless All Activity all re-starts change, trading group re-starts structure
It makes, otherwise the change of any transaction, trading group can all be caused mistake occur, All Activity is unable to run succeeded, it is ensured that
The atomicity of trading group, it is ensured that the fairness of transaction.After one or more counterparties in trading group sign transaction, trading group
In remaining any one or more counterparty when modifying original transaction, can all cause the head of trading group to be traded hash value
Variation, to make trading group incorrect, after preventing a side or multiple party signatures, either party or multi-party when modifying transaction, avoid
Wrongful dealing occurs.
Embodiment 5
A kind of trading group of the present embodiment is further improved on the basis of embodiment 1 or 2 or 3 or 4, trading group
Whole service charge is paid by head transaction, other transaction in transaction do not need payment procedure expense；In this way in addition in trading group
Head transaction other than transaction initiator, do not need payment procedure expense, can also initiate to trade, increase the flexible of transaction
Property；When the transaction in trading group is that contract is traded, the content of different contracts can be arranged between each dealer, for example close
About content can be related to stock exchange, loan repayment, and personal health management is related to the equity agreement of law, testament, entity asset
Distribution, renting a house in law of property, agreement of hiring a car, house-purchase, auto loan etc.；When the transaction in trading group is payment transaction
When, entity fund associates with encryption currency, and intellectual capital is associated with entity asset by Internet of Things, multi transaction person
The transfer of assets/fund, exchange and dealing can be legally carried out, the efficiency that transaction executes is improved.Between more transactions mutually
Association, there is no the third party transactions centers such as bank, realize the design of decentralization, prevent from transaction data from distorting, lose etc. to anticipate
The occurrence of outer.
Embodiment 6
A kind of trading group building method of the present embodiment, a kind of trading group described in constructed embodiment 1 or 2 or 3 or 4 or 5,
The following steps are included:
The first step, a kind of trading group according to any one technical solution in embodiment 1 or 2 or 3 or 4 or 5, from friendship
The tail portion easily organized, which is traded, starts to calculate to head transaction the hash value of transaction, the first hash value of calculating tail portion transaction；Such as Fig. 2 institute
Show, N1, as tail portion transaction Nn, calculates the hash value of tail portion Nn as head transaction N1, Nn first；
The trade hash value of adjacent transaction of second step, calculating and tail portion according to the sequence successively calculates each transaction
Hash value, until calculating the hash value of head transaction；The corresponding transaction Nn-1's that in Fig. 2, calculating is traded adjacent with tail portion
Hash value successively calculates the hash value of each transaction according to the sequence, until calculating the hash value of head transaction N1；
Third step is respectively put into the hash value that head is traded in the transaction of each of trading group；It corresponds in Fig. 2
In, the hash value of head transaction N1 is respectively put into the transaction of each of trading group；
4th step, the SIGHASH for calculating each transaction, and calculate the signature.
The hash value of next transaction is sky in the hash value of the tail portion transaction, and SIGHASH mode is SIGHASH_
ALL, SIGHASH_NONE or SIGHASH_SINGLE；Single transaction content can be by participating in many ways, and signature verification is flexible.
Embodiment 7
A kind of storage medium, for storing the corresponding program of method described in one or more embodiments 6.A kind of equipment,
As shown in figure 5, the equipment includes: one or more processors；Memory, for storing one or more programs, when described
When one or more programs are executed by one or more of processors, so that one or more of processors are executed as implemented
Method described in example 6 forms a kind of trading group described in embodiment 1 or 2 or 3 or 4 or 5.
As shown in Fig. 5,6 and 7, the arrow direction in figure refers to that the input address in transaction is directed toward the direction of output address,
Client installs the method that can independently execute construction trading group on said device, can form the trading group and be sent to
There are multiple wallets in block chain network, in single client, each wallet corresponds to multiple addresses, can be formed between multiple addresses
More transactions, interdepend or associated more transactions can construct trading group；In different clients, in different wallets,
More transactions can be constructed between different addresses, interdepend or associated more transactions can construct trading group, be sent to
In block chain network.Because of the atomicity of trading group, one group of transaction that is mutually related is made to be only capable of being present in the same effective area
It is identical as single transactional nature in block.If miner in calculation block, has only used the part transaction of same trading group, then
The block will not be able to be calculated as function, and trading group itself necessarily executes failure.It also constrains in turn each in trading group
Transaction will not be separately sent in block chain network in different network node, but be sent to area in the form of trading group entirety
Each network node on block chain.Trading group is set to have the same characteristic of single transaction or run succeeded (in trading group
Each transaction is performed both by success) or execute failure (each transaction in trading group is performed both by failure), without executing
Occur to the case where half (the part transaction in trading group runs succeeded, and another part transaction executes failure).
Embodiment 8
A kind of system, including transaction structural unit and trading group structural unit, the transaction structural unit, according to implementation
Method in example 6 forms the transaction in a kind of trading group described in embodiment 1 or 2 or 3 or 4 or 5, and the trading group constructs single
Member forms a kind of trading group described in embodiment 1 or 2 or 3 or 4 or 5 according to the method for embodiment 6.
Embodiment 9
Assure credit financing package
Chinese invention patent application in the prior art discloses a kind of based on block chain application No. is 2017101355993
The guarantee credit financing package of technology, in step s 4, when credit requirement side will finance ratio with being sent to fund supply side's public key
Location (transaction A), fund supply side squeeze into digital cash or RMB credit requirement side's proper account (transaction B), and this two
Transaction still has certain risk in reality: no measure can ensure that fund supply side is bound to incite somebody to action in credit requirement
After financing coin is sent to fund supply side, digital cash or RMB can be squeezed into the corresponding account in credit requirement side by fund supply side
Family.
And the trading group that the present embodiment creates on block chain creatively solves this technical problem, as shown in figure 3,
The trading group that the A that trades is constituted with the B that trades are as follows: when transaction A trades as head, the B that trades trades as tail portion, puts in transaction A
Enter the hash value of B of trading, and saves the hash value of transaction A in transaction A and the B that trades respectively.So that two transaction associations rise
Come, if one transaction of any of them is not carried out, is perhaps deleted or is modified, can all lead to this 2 transaction while not
It can succeed, avoid inequitable phenomenon appearance of trading；If both run succeeded, fair deal is completed.By this
Mode still may insure that only associated financing coin can be used in credit requirement side itself, non-assignable to give other credit requirement sides
Financing；And the financing that credit requirement side obtains is no more than maximum guarantee amount.
The component part of transaction A and B is identical, including transaction content, hash value and signature；Wherein, transaction content is related to handing over
Easy amount outputs and inputs address, and locking time needs to be recorded in the content etc. on block chain, the hash value packet for the A that trades
Include the content of transaction A, the trade hash value of B and the sum 2 of transaction；The hash value of transaction B includes the content and transaction of transaction B
Sum 2；The signature of transaction A includes the content of transaction A, the hash value for the B that trades, the hash value of the sum 2 of transaction and the A that trades；It hands over
The signature of easy B includes the content of transaction B, the sum 2 of transaction and the hash value of transaction A.When transaction A trades as tail portion, trade B
When as head transaction, situation is similar.The whole service charge of trading group trades A by head to pay, and transaction B does not need payment hand
It continues to pay dues.
The building method of the trading group for A and the B composition of trading of trading is as follows:
The first step, trading since the tail portion of trading group calculates the hash value of transaction, first calculating tail B trades A to head
The hash value of portion's transaction B；
The hash value of second step, calculating the head transaction A adjacent with tail portion transaction B；
Third step is respectively put into the hash value of head transaction A in head transaction A and tail portion transaction B；
4th step, the SIGHASH for calculating each transaction, and calculate the signature.
Above-mentioned transaction A and transaction B can be the transaction of single-input single-output, the friendship of single input and multi-output, multi input respectively
The transaction singly exported, the transaction of multiple-input and multiple-output are therein any.
Loan repayment scheme
Using block chain distributed cryptographic record, confidentiality and can not tamper, the history creditor-debtor entry of the side of loaning bill, work
The full contents such as money flowing water, economic situation, credit report are recorded on block chain, and lender (is not limited to the finance such as bank herein
Mechanism can be fund possessor) check the above-mentioned record of loaning bill side, after the approval, lender agrees to maximum debt-credit amount,
And it is written to block chain, and after loan is agreed to by loaning bill side, to ensure that loaning bill side refunds in time, both sides' agreed terms, for example monthly borrow
It is necessary to refund after money side's paying out wages, corresponding punishment condition otherwise can be executed, and the treaty content is recorded on block chain,
Lender sends the encryption currency of the debt-credit amount according to contract agreement by block chain to loaning bill side, when unit one belongs to of loaning bill side
Pay wages to after loaning bill side's account (transaction A, it is assumed herein that the wage is also encryption currency), and loaning bill side will refund to loan
Side's (transaction B), to ensure to refund on time, according to " guarantee credit financing package " trading group building mode described in the present embodiment,
Both sides construct a transaction group, it is ensured that two transactions are performed simultaneously success, it is ensured that refund on time；This refund form can be used as
One of mode of refund is applied.
Embodiment 10
Most of manufacturing industry of analogy air conditioner industry, the prior art all refer to material supplier, manufacturer, retail
Several sides such as quotient and consumer manufacture processing in the purchasing of raw materials, are sold in each link such as wholesale and are related to treasury trade more, hand over
Situations such as account payable involved in easy process urges money, pays for first, finances, and borrows or lends money money, and shareholder benefit distribution and employee compensation provide is consumed
It is costly higher, it takes a long time, and often there is inequitable situation to occur.Material supplier, manufacturer, retailer will from each other
The contract of agreement is recorded on block chain, it is desirable to which, in consumer to (transaction C) after retailer's returned money, retailer can be to manufacturer
Returned money (transaction D), manufacturer can be to supplier's returned money (transaction E).
As shown in figure 4, the trading group that transaction C, D and E are constituted are as follows: when transaction C trades as head, the E that trades is as tail portion
Transaction is put into the hash value of transaction D in transaction C, and the hash value of transaction E is put into transaction D, and respectively in transaction C, D and E
In save transaction A hash value.
Transaction C, D is identical with the component part of E, including transaction content, hash value and signature；Wherein, transaction content is related to
The amount of transaction outputs and inputs address, and locking time needs to be recorded in the content etc. on block chain, the hash value for the C that trades
Content, the trade hash value of D and the sum 3 of transaction including the C that trades；The hash value of transaction D includes the content of transaction D, transaction E
Hash value and transaction sum 3；The hash value of transaction E includes the trade content of E and the sum 3 of transaction；The signature packets of transaction C
Include the content of transaction C, the hash value for the D that trades, the sum 3 of transaction and the hash value of transaction C；Signing for D of trading includes transaction D
Content, trade E hash value, transaction sum 3 and transaction C hash value；Signing for E of trading includes the content of transaction E, trades
Sum 3 and transaction C hash value.When transaction C trades as tail portion, and transaction E trades as head, situation is similar.Transaction
The whole service charge of group trades C by head to pay, and transaction D and E does not need payment procedure expense.
The building method of the trading group for C, D and E composition of trading is as follows:
The first step, trading since the tail portion of trading group calculates the hash value of transaction, first calculating tail E trades C to head
The hash value of portion's transaction E；
The hash value of second step, calculating the transaction D adjacent with tail portion transaction E, then calculate the Hash of head transaction C
Value；
Third step is respectively put into the hash value of head transaction C in transaction D and tail portion transaction E；
4th step, the SIGHASH for calculating each transaction, and calculate the signature.
Above-mentioned transaction C, D and E can be the transaction of single-input single-output, the friendship of single input and multi-output, multi input list respectively
The transaction of output, the transaction of multiple-input and multiple-output are therein any.
Material supplier, manufacturer, retailer with respective shareholder and in terms of personnel carry out distribution of interests and
Above-mentioned transaction association can also be used when paying out wages, form the form of trading group, combined with intelligent contract, simplify interests point
With the formality with paying out wages, the good operation of enterprise is kept.
Schematically the present invention and embodiments thereof are described above, description is not limiting, relates in description
And " head ", " tail portion ", " upper one ", the vocabulary such as " next " be opposite concept, it is shown in the drawings also only this
One of embodiment of invention, actual mode and application scenarios are not limited thereto.So if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As mode and embodiment, be within the scope of protection of the invention.
Claims (10)
1. a kind of trading group, the trading group includes multiple transaction, and the transaction includes transaction content, hash value and signature,
Be characterized in that, trade and trade between interconnected by Hash chained list, and the head of trading group is saved in every transaction
The hash value of portion's transaction.
2. a kind of trading group according to claim 1, which is characterized in that the Hash chained list be adjacent transaction in wherein
The hash value of one transaction.
3. a kind of trading group according to claim 1, which is characterized in that the hash value of the transaction includes transaction content,
The hash value of next transaction and the sum of transaction.
4. a kind of trading group according to claim 1, which is characterized in that the signature includes transaction content, next friendship
The hash value that easy hash value, the sum of transaction and the head of trading group are traded；Preferably, the sum of the transaction is more than or equal to
2。
5. a kind of trading group according to claim 4, which is characterized in that the whole service charge of trading group by head transaction Lai
It pays, other transaction in transaction do not need payment procedure expense；Preferably, the transaction in the trading group be contract trade or
Payment transaction.
6. a kind of trading group building method, which comprises the following steps:
The first step, according to claim 1 a kind of trading group described in -5 any one, trade from the tail portion of trading group and hand over to head
Easily start to calculate the hash value traded, the first hash value of calculating tail portion transaction；
The trade hash value of adjacent transaction of second step, calculating and tail portion according to the sequence successively calculates the Hash of each transaction
Value, until calculating the hash value of head transaction；
Third step is respectively put into the hash value that head is traded in the transaction of each of trading group；
4th step, the SIGHASH for calculating each transaction, and calculate the signature.
7. a kind of trading group building method according to claim 6, which is characterized in that in the hash value of the tail portion transaction
The hash value of next transaction is sky；Preferably, SIGHASH mode is SIGHASH_ALL, SIGHASH_NONE or SIGHASH_
SINGLE。
8. a kind of storage medium, it is characterised in that: for storing the corresponding journey of method described in one or more claim 6-7
Sequence.
9. a kind of equipment, it is characterised in that: the equipment includes: one or more processors；Memory, for store one or
Multiple programs, when one or more of programs are executed by one or more of processors, so that one or more of
Processor executes the method as described in any one of claim 6-8, forms a kind of trading group described in claim 1-5.
10. a kind of system, it is characterised in that: including transaction structural unit and trading group structural unit, the transaction constructs single
Member forms the transaction in a kind of trading group described in claim 1-5, the trading group according to the method for claim 6-8
Structural unit forms a kind of trading group described in claim 1-5 according to the method for claim 6-8.
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| CN201810695527.9A CN108960826B (en) | 2018-06-29 | 2018-06-29 | Transaction group, transaction group construction method, storage medium, device and system |
| PCT/CN2019/092156 WO2020001369A1 (en) | 2018-06-29 | 2019-06-20 | Transaction group, transaction group construction method, storage medium, device and system |
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| CN201810695527.9A CN108960826B (en) | 2018-06-29 | 2018-06-29 | Transaction group, transaction group construction method, storage medium, device and system |
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| CN109829822A (en) * | 2019-01-28 | 2019-05-31 | 杭州复杂美科技有限公司 | Transaction replacement method, transaction queuing strategy, equipment and storage medium |
| CN110008754A (en) * | 2019-03-18 | 2019-07-12 | 阿里巴巴集团控股有限公司 | A kind of pair of communication record carries out block chain and deposits card method and system |
| WO2020001369A1 (en) * | 2018-06-29 | 2020-01-02 | 杭州复杂美科技有限公司 | Transaction group, transaction group construction method, storage medium, device and system |
| WO2020220746A1 (en) * | 2019-04-29 | 2020-11-05 | 创新先进技术有限公司 | Block chain-based settlement method and apparatus, and electronic device |
| US10991045B2 (en) | 2019-04-29 | 2021-04-27 | Advanced New Technologies Co., Ltd. | Blockchain-based settlement method, apparatus, and electronic device |
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| CN109829822B (en) * | 2019-01-28 | 2020-10-23 | 杭州复杂美科技有限公司 | Transaction replacing method, transaction queuing method, device and storage medium |
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| WO2020220746A1 (en) * | 2019-04-29 | 2020-11-05 | 创新先进技术有限公司 | Block chain-based settlement method and apparatus, and electronic device |
| US10991045B2 (en) | 2019-04-29 | 2021-04-27 | Advanced New Technologies Co., Ltd. | Blockchain-based settlement method, apparatus, and electronic device |
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| CN108960826B (en) | 2021-02-09 |
| WO2020001369A1 (en) | 2020-01-02 |
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