CN115601037A - Carbon integral cross-system transfer clearing method and system based on block chain - Google Patents

Abstract

The invention provides a block chain-based carbon integral cross-system transfer clearing method and a block chain-based carbon integral cross-system transfer clearing system, which comprise the following steps: enabling the liquidity provider to pay the integral to a local account Z2 of the block chain corresponding to the second system at an account Z5 of the block chain, and sending a corresponding transfer certificate B to a block chain verification node; the block chain verification node checks the transfer certificate A and the transfer certificate B, and the block chain is cleared after the check is passed; after clearing is completed, the local account Z1 of the block chain corresponding to the first system collects points to the local account Z3 of the block chain corresponding to the first system. The invention simultaneously forms and is butted with two carbon credit generation and transaction systems which are not communicated with each other through the credit synchronization module, and is butted with the block chain system, a block chain local account is established for a user, a bidirectional anchoring relation is established between the carbon credit account of the user and the block chain local account, the synchronous change of the two is realized, and the transparency of the transaction process is ensured.

Description

Method and system for cross-system transfer and settlement of carbon credits based on blockchain

technical field

The present invention relates to the technical field of block chains, in particular to a method for transferring and clearing carbon credits across systems based on block chains.

Background technique

Patent document CN111539722A discloses a blockchain-based carbon trading system and method, including a carbon emission acquisition module to obtain carbon behavior data and generate carbon emission data; the carbon behavior data includes at least one of carbon consumption and carbon emission reduction behavior The carbon transaction module adds time points to the carbon behavior data and processes them into distributed carbon transaction bills; the block chain module configures the carbon transaction bills for each block chain node; the carbon transaction management module confirms that each block chain module Carbon transactions between different buyers and sellers of blockchain nodes and carbon transaction data are stored.

However, the patent document CN111539722A does not solve the technical problem of how to realize the transaction between mutually incompatible carbon points and transaction systems. Therefore, there is a need for a method and system for cross-system transfer and settlement of carbon credits based on blockchain to improve the above problems.

Contents of the invention

In view of the defects in the prior art, the purpose of the present invention is to provide a method for transferring and clearing carbon credits across systems based on blockchain.

According to a blockchain-based cross-system transfer and clearing method for carbon credits provided by the present invention, it includes:

Integral synchronization step: create blockchain local account Z1 and blockchain local account Z2 for the users of the first system and the second system, respectively, so that the blockchain local account and carbon credit account of the same user can change synchronously; among them, The first system and the second system are different carbon credit generation and trading systems. The first system and the second system provide carbon credit accounts for their respective users;

Liquidity provider step: provide a liquidity provider who creates a carbon credit account in the first system, and the carbon credit account of the liquidity provider has a blockchain local account Z3 corresponding to the first system;

Sender step: the first system generates the first record information and synchronizes it to the blockchain local account Z1 corresponding to the first system for accounting, and the blockchain local account Z1 corresponding to the first system sends the transfer certificate A to the blockchain Verification node; wherein, the first record information indicates the points to be transferred out;

Receiver step: the second system generates the second record information and synchronizes it to the blockchain local account Z2 corresponding to the second system, and the blockchain local account Z2 corresponding to the second system broadcasts the second record information in the blockchain; where , the points to be transferred out of the first record information match the points to be transferred in from the second record information;

Liquidity business step: According to the second record information, the liquidity provider’s account Z5 in the blockchain advances the points to the corresponding blockchain local account Z2 of the second system, and sends the corresponding transfer certificate B to the blockchain for verification node;

Verification steps: The blockchain verification node checks the transfer certificate A and the transfer certificate B, and the blockchain performs liquidation after the verification is passed; after the liquidation is completed, the corresponding blockchain local account Z1 of the first system remits the points to the corresponding first The system's blockchain local account Z3.

Preferably, before the liquidation is completed, the blockchain local account Z2 is synchronized with the corresponding carbon credit account.

Preferably, the first record information and the second record information both include: the transaction quantity of carbon credits, the receiver information of carbon credits, and the timeout time of carbon credit transactions, wherein the receiver information of carbon credits includes: account number, Contact and address.

Preferably, the liquidation of points uses the hash time lock agreement to carry out cross-chain liquidation of carbon points.

Preferably, before the credit transaction is cleared, a key is randomly generated and a withdrawal transaction is broadcast;

The withdrawal transaction is: when the user fails to obtain the correct key and signature within the set time, the carbon credits for initiating the transaction will be returned to the user.

According to the present invention, a blockchain-based cross-system transfer and clearing system for carbon credits includes:

Integral synchronization module: Create blockchain local account Z1 and blockchain local account Z2 for the users of the first system and the second system, respectively, so that the blockchain local account and carbon credit account of the same user can change synchronously; among them, The first system and the second system are different carbon credit generation and trading systems. The first system and the second system provide carbon credit accounts for their respective users;

Liquidity provider module: provide a liquidity provider, the liquidity provider creates a carbon credit account in the first system, and the carbon credit account of the liquidity provider has a blockchain local account Z3 corresponding to the first system;

Sender module: the first system generates the first record information and synchronizes it to the blockchain local account Z1 corresponding to the first system for accounting, and the blockchain local account Z1 corresponding to the first system sends the transfer certificate A to the blockchain Verification node; wherein, the first record information indicates the points to be transferred out;

Receiver module: the second system generates the second record information and synchronizes it to the blockchain local account Z2 corresponding to the second system, and the blockchain local account Z2 corresponding to the second system broadcasts the second record information in the blockchain; where , the points to be transferred out of the first record information match the points to be transferred in from the second record information;

Liquidity provider module: According to the second record information, the liquidity provider’s account Z5 in the blockchain advances credits to the corresponding blockchain local account Z2 of the second system, and sends the corresponding transfer certificate B to the blockchain for verification node;

Verification module: the blockchain verification node checks the transfer certificate A and the transfer certificate B, and the blockchain performs liquidation after the verification is passed; after the liquidation is completed, the corresponding blockchain local account Z1 of the first system remits the points to the corresponding first The system's blockchain local account Z3.

Preferably, before the liquidation is completed, the blockchain local account Z2 is synchronized with the corresponding carbon credit account.

Preferably, the first record information and the second record information both include: the transaction quantity of carbon credits, the receiver information of carbon credits, and the timeout time of carbon credit transactions, wherein the receiver information of carbon credits includes: account number, Contact and address.

Preferably, the liquidation of points uses the hash time lock agreement to carry out cross-chain liquidation of carbon points.

Preferably, before the credit transaction is cleared, a key is randomly generated and a withdrawal transaction is broadcast;

The withdrawal transaction is: when the user fails to obtain the correct key and signature within the set time, the carbon credits for initiating the transaction will be returned to the user.

Compared with the prior art, the present invention has the following beneficial effects:

1. The invention connects different carbon credits and blockchain systems with high compatibility, can effectively improve the circulation and liquidation efficiency of carbon credits, and provide liquidity for users on both sides in advance when the credits have not been liquidated, speeding up transactions efficiency.

2. The present invention connects with two mutually incompatible carbon credit generation and transaction systems at the same time through the credit synchronization module, and docks with the blockchain system to create a local blockchain account for the user. A two-way anchoring relationship is established between the chain local accounts to realize the synchronous changes of the two and ensure the transparency of the transaction process.

3. The present invention ensures the atomicity and security of the cross-chain by using the HTLA protocol to carry out the cross-chain liquidation of carbon credits.

Description of drawings

Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a schematic flow chart of the present invention.

detailed description

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

The present invention includes the first system, the second system and the blockchain-based cross-system transfer and clearing system of carbon credits provided by the present invention as the points synchronous bookkeeping system. Among them, the first system and the second system are two mutually exclusive carbon credit generation and trading systems. The carbon credit generation and transaction system includes a user carbon credit account module and a transaction module. The user carbon credit account module provides functions such as user registration, login, generation of carbon credit accounts, and recording of carbon credits. The transaction module is used to make The carbon credits obtained by users can be traded and transferred within the same system.

The point synchronization accounting system includes point synchronization module, verification module and liquidity provider module. The points synchronization module is connected with two carbon points generation and trading systems that are not connected to each other at the same time, and connected with the block chain system to create a block chain local account for the user. A two-way anchoring relationship is established between them to realize the synchronous changes of the two and ensure the transparency of the transaction process. The verification module is an open and fair third-party verification, which is also a verification node on the block chain account book, and will conduct a fair review of the point transactions of the two systems. The liquidity provider module provides a batch of liquidity providers, which have ledgers on the two carbon credit systems and blockchain ledgers at the same time, and can provide liquidity for users on both sides in advance when the credits have not been liquidated, and speed up transaction efficiency. Among them, the liquidity provider module is used for information delivery, that is, the information delivery unit.

Embodiment one

According to a blockchain-based cross-system transfer and clearing method for carbon credits provided by the present invention, it includes:

Integral synchronization step: create blockchain local account Z1 and blockchain local account Z2 for the users of the first system and the second system, respectively, so that the blockchain local account and carbon credit account of the same user can change synchronously; among them, The first system and the second system are different carbon credit generation and trading systems. The first system and the second system provide carbon credit accounts for their respective users;

Liquidity provider step: provide a liquidity provider who creates a carbon credit account in the first system, and the carbon credit account of the liquidity provider has a blockchain local account Z3 corresponding to the first system;

Sender step: the first system generates the first record information and synchronizes it to the blockchain local account Z1 corresponding to the first system for accounting, and the blockchain local account Z1 corresponding to the first system sends the transfer certificate A to the blockchain Verification node; wherein, the first record information indicates the points to be transferred out;

Receiver step: the second system generates the second record information and synchronizes it to the blockchain local account Z2 corresponding to the second system, and the blockchain local account Z2 corresponding to the second system broadcasts the second record information in the blockchain; where , the points to be transferred out of the first record information match the points to be transferred in from the second record information;

Liquidity business step: According to the second record information, the liquidity provider’s account Z5 in the blockchain advances the points to the corresponding blockchain local account Z2 of the second system, and sends the corresponding transfer certificate B to the blockchain for verification node;

Verification steps: The blockchain verification node checks the transfer certificate A and the transfer certificate B, and the blockchain performs liquidation after the verification is passed; after the liquidation is completed, the corresponding blockchain local account Z1 of the first system remits the points to the corresponding first The system's blockchain local account Z3.

The first record information and the second record information include: the transaction quantity of carbon credits, the receiver information of carbon credits, and the timeout time of carbon credit transactions, wherein the receiver information of carbon credits includes: account number, contact information and address . The information processing includes: circulation of carbon credits and transaction settlement of carbon credits. The settlement of the carbon points uses the hash time lock agreement to carry out the cross-chain liquidation of carbon points. Before the transaction settlement of the carbon credits, the system first randomly generates a key and broadcasts a withdrawal transaction. The withdrawal transaction is: when the user fails to obtain the correct key and signature within the set time, the carbon credits for initiating the transaction will be returned to the user.

Specifically, the present invention can be used for carbon credit transfer and settlement, and the specific workflow is shown in Figure 1: Suppose there are two users A and B in two mutually exclusive carbon credit systems 1 and 2, and now A and B Carbon credit trading is required.

First of all, System 1 is connected to the points synchronous bookkeeping system to generate a blockchain carbon point account Z1, and System 2 is connected to the point synchronous bookkeeping system to generate a blockchain carbon point account Z2; the liquidity provider C in the point synchronous bookkeeping system Carbon credit accounts will be created in System 1 and System 2 respectively, and will be synchronized with the blockchain through the credit synchronization module to form C’s blockchain carbon credit account Z3 on System 1 and blockchain carbon credits on System 2 Account Z4.

Then, if A needs to trade a certain amount of carbon points a, he will fill in the transaction quantity in System 1, determine the recipient information, address, and timeout time, etc.; the above information will be recorded through the account Z1 of System 1 in the blockchain, and The transfer certificate is sent to the verifier module.

Next, for the recipient, B fills in the receiver's address, timeout time and other information, and broadcasts it in the blockchain through the points synchronous accounting system. The account Z5 in the blockchain transfers the carbon credit b to the blockchain account Z2, and sends the transfer certificate to the verifier; the verifier checks the two transfer certificates.

Then, after the verification is passed, the blockchain will be liquidated at the same time according to the HTLA atomic transaction agreement. Specifically, the steps are as follows: 1. The system randomly generates a key K for A, which only A knows; then the system initiates an on-chain transfer transaction to send carbon credit a to B according to A’s request①. However, the point transaction between A and B can only be completed after obtaining B's signature and providing the key K. 2. Before the official point settlement, the system will broadcast a withdrawal transaction for A ②, if the correct key and signature are not obtained within the timeout period set by A, then the carbon point a that initiated the transaction before will be returned to A . 3. B receives the transaction ② from A, both A and B sign the transaction ②, and the transaction ② is withdrawn to take effect, and then the system broadcasts the transaction ① to the whole network for A. 4. The system initiates a transaction ③ for B, and pays the corresponding carbon credit b to A. When A enters the key K and successfully decrypts it, and attaches A's signature, the carbon credit b can be obtained. In order to prevent A’s denial and ensure that he can successfully obtain the key K, the system also publishes a retracement transaction ④ that requires both A and B to sign before broadcasting the transaction ③. Provide the correct key K and attach the signature, and the carbon point b will be returned to B for the activated withdrawal transaction ④. 5. A and B attach their own signatures to the retracement transaction ④, and the retracement transaction ④ takes effect. At this time, the system also broadcasts the transaction ③ to the whole network for B. 6. A attaches his own signature to the transaction ③, and enters the correct key K, the transaction ③ is successful, A obtains carbon points b, and B obtains the key K. 7. After B gets the key K, enter the key and his own signature in System 2, and get A's carbon points

Finally, after the liquidation is completed, the blockchain will synchronize the point change to its corresponding account, and then the carbon point a in the account Z1 will be remitted to the liquidity provider, and the carbon point b in the account Z2 will be sent to the account of B, so that user A , B's cross-system transaction clearing.

In other words, the present invention mainly solves the problem of how to send the carbon credit a of system 1 to system 2 in two different carbon credit systems. Since system 2 does not accept carbon credit a, it needs to pass The liquidity provider converts it into carbon credit b, and then sends it to system 2.

Further, an example of an exchange scenario is used to describe the liquidation method of the present invention as follows:

Assume that there are two users A and B in two mutually exclusive carbon credit systems 1 and 2, and the two systems and users come from two countries respectively, and the carbon credit a of system 1 is an enterprise credit, and the price is 1 credit It is equal to 1 US dollar, and the carbon credit b of system 2 is a personal credit, and 1 credit is equal to 1 RMB. Since carbon credit a and carbon credit b have different uses, now A and B want to trade carbon credit a and b, the exchange rate is 1:7, and 100 carbon credit a is exchanged for 700 carbon credit b.

Preparations: System 1 is connected to the point synchronous bookkeeping system to generate a blockchain carbon point account Z1, and system 2 is connected to the point synchronous bookkeeping system to generate a blockchain carbon point account Z2; the liquidity provider in the point synchronous bookkeeping system (referred to as C) will create carbon credit accounts in System 1 and System 2 respectively, and will synchronize with the blockchain through the credit synchronization module to form C's blockchain carbon credit account Z3 on System 1 and the zone on System 2 Block chain carbon credit account Z4.

Step 1: A fills in the transaction 100 carbon points a in system 1, fills in the acceptance information and address of B, and sets the timeout period;

Step 2: The above information will be accounted for by system 1 by adding 100 carbon points a to account Z1 in the blockchain, and send the transfer certificate to the verifier module;

Step 3: B fills in A's acceptance information, timeout time and other information, and broadcasts in the blockchain through the points synchronous accounting system. At this time, liquidity provider C will advance carbon points b to B in advance, through its own in the area The blockchain account Z5 transfers 700 carbon points b to the blockchain account Z2, and sends the transfer certificate to the verifier; the verifier checks the two transfer certificates;

Step 4: After the verification is passed, the blockchain will be liquidated at the same time according to the HTLA atomic transaction agreement;

Step 5: After the liquidation is completed, the blockchain will synchronize the point change to its corresponding account, then 100 carbon points a in account Z1 will be remitted to liquidity provider C, and 700 carbon points b in account Z2 will be sent to B’s account , so as to realize the cross-system transaction settlement of users A and B.

Hashed Time-Lock Agreement, HTLA (Hashed Time-Lock Agreements) is a HTLC generalization agreement proposed by Interledger, regardless of whether the system supports the HTLC protocol, regardless of whether it is a distributed ledger or a centralized ledger, it can be used between systems HTLA realizes cross-chain exchange and supports multi-hop cross-chain exchange between multiple systems.

Embodiment two

The present invention also provides a blockchain-based cross-system transfer and clearing system for carbon credits. Those skilled in the art can realize the block-based The inter-system transfer and settlement system of carbon credits in chains, that is, the method of cross-system transfer and settlement of carbon credits based on blockchain can be understood as a preferred implementation of the cross-system transfer and settlement system of carbon credits based on blockchain.

According to the present invention, a blockchain-based cross-system transfer and clearing system for carbon credits includes:

Integral synchronization module: Create blockchain local account Z1 and blockchain local account Z2 for the users of the first system and the second system, respectively, so that the blockchain local account and carbon credit account of the same user can change synchronously; among them, The first system and the second system are different carbon credit generation and trading systems. The first system and the second system provide carbon credit accounts for their respective users;

Liquidity provider module: provide a liquidity provider, the liquidity provider creates a carbon credit account in the first system, and the carbon credit account of the liquidity provider has a blockchain local account Z3 corresponding to the first system;

Sender module: the first system generates the first record information and synchronizes it to the blockchain local account Z1 corresponding to the first system for accounting, and the blockchain local account Z1 corresponding to the first system sends the transfer certificate A to the blockchain Verification node; wherein, the first record information indicates the points to be transferred out;

Receiver module: the second system generates the second record information and synchronizes it to the blockchain local account Z2 corresponding to the second system, and the blockchain local account Z2 corresponding to the second system broadcasts the second record information in the blockchain; where , the points to be transferred out of the first record information match the points to be transferred in from the second record information;

Liquidity provider module: According to the second record information, the liquidity provider’s account Z5 in the blockchain advances credits to the corresponding blockchain local account Z2 of the second system, and sends the corresponding transfer certificate B to the blockchain for verification node;

Verification module: the blockchain verification node checks the transfer certificate A and the transfer certificate B, and the blockchain performs liquidation after the verification is passed; after the liquidation is completed, the corresponding blockchain local account Z1 of the first system remits the points to the corresponding first The system's blockchain local account Z3.

Among them, the first record information and the second record information in the above description include: the transaction quantity of carbon credits, the receiver information of carbon credits, and the timeout time of carbon credit transactions. Among them, the receiver information of carbon credits includes: account number, contact manner and address. The information processing includes: the circulation of carbon credits and the transaction settlement of carbon credits, wherein the settlement of carbon credits uses the HTLA protocol for cross-chain settlement of carbon credits. That is, the hash time lock agreement is HTLA (Hashed Time-Lock Agreements).

In the present invention, before the transaction settlement of carbon credits, the system first randomly generates a key and broadcasts a withdrawn transaction; the withdrawn transaction is: when the user fails to obtain the correct key and signature within the set time, the carbon Points will be returned to the user.

Those skilled in the art know that, in addition to realizing the system, device and each module thereof provided by the present invention in a purely computer-readable program code mode, the system, device and each module thereof provided by the present invention can be completely programmed by logically programming the method steps. The same program is implemented in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, and embedded microcontrollers, among others. Therefore, the system, device and each module provided by the present invention can be regarded as a hardware component, and the modules included in it for realizing various programs can also be regarded as the structure in the hardware component; A module for realizing various functions can be regarded as either a software program realizing a method or a structure within a hardware component.

Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims (10)

1. A carbon integral cross-system transfer clearing method based on a block chain is characterized by comprising the following steps:

and (3) integration synchronization step: respectively creating a block chain local account Z1 and a block chain local account Z2 for a user of a first system and a user of a second system, and enabling the block chain local account and the carbon integral account of the same user to synchronously change; the first system and the second system are non-communicated carbon credit generation and transaction systems, and respectively provide carbon credit accounts for respective users;

fluidity provider step: providing a liquidity provider that creates a carbon credit account at a first system, the liquidity provider's carbon credit account having a blockchain local account Z3 corresponding to the first system;

a sender step: the first system generates first record information and synchronizes the first record information to a local account Z1 of the block chain corresponding to the first system for billing, and the local account Z1 of the block chain corresponding to the first system sends the transfer proof A to a verification node of the block chain; wherein the first recording information indicates an integral to be rolled out;

a receiver step: the second system generates second recording information and synchronizes to the local account Z2 of the block chain corresponding to the second system, and the local account Z2 of the block chain corresponding to the second system broadcasts the second recording information in the block chain; wherein the first record information indicates that the points to be shifted out match the points to be shifted in as indicated by the second record information;

a flow quotient step: according to the second record information, the liquidity provider pays the integral to a local account Z2 of the block chain corresponding to the second system on an account Z5 of the block chain, and sends a corresponding transfer certificate B to a block chain verification node;

a verification step: the block chain verification node checks the transfer certificate A and the transfer certificate B, and the block chain is cleared after the check is passed; after the clearing is completed, the local account Z1 of the blockchain corresponding to the first system remits the points to the local account Z3 of the blockchain corresponding to the first system.

2. A blockchain-based carbon credit cross system transfer clearing method as claimed in claim 1 wherein blockchain local account Z2 is synchronized with the corresponding carbon credit account before clearing is complete.

3. A blockchain-based carbon-integrated cross-system transfer clearing method according to claim 1, wherein the first record information and the second record information each include: the transaction amount of the carbon points, the receiver information of the carbon points and the overtime time of the carbon point transaction, wherein the receiver information of the carbon points comprises: account number, contact address and address.

4. A block chain based carbon credit cross system transfer clearing method as claimed in claim 1, wherein the clearing of credits uses a hash time lock agreement for carbon credit cross chain clearing.

5. A blockchain-based carbon credit cross system transfer clearing method as claimed in claim 4 wherein before the transaction clearing of credits, a key is randomly generated and a withdrawal transaction is broadcast;

the withdrawal transaction is: when the user does not obtain the correct key and signature within the set time, the carbon credit initiating the transaction will be returned to the user.

6. A block chain-based carbon integral cross-system transfer clearing system is characterized by comprising:

an integration synchronization module: respectively creating a block chain local account Z1 and a block chain local account Z2 for a user of a first system and a user of a second system, and enabling the block chain local account and the carbon integral account of the same user to synchronously change; the first system and the second system are non-communicated carbon credit generation and transaction systems, and respectively provide carbon credit accounts for respective users;

mobility provider module: providing a liquidity provider that creates a carbon credit account at a first system, the liquidity provider's carbon credit account having a blockchain local account Z3 corresponding to the first system;

a sender module: the first system generates first record information and synchronizes the first record information to a local account Z1 of the block chain corresponding to the first system for billing, and the local account Z1 of the block chain corresponding to the first system sends the transfer proof A to a verification node of the block chain; wherein the first recording information indicates an integral to be rolled out;

a receiver module: the second system generates second recording information and synchronizes to the local account Z2 of the block chain corresponding to the second system, and the local account Z2 of the block chain corresponding to the second system broadcasts the second recording information in the block chain; wherein the first recording information indicates that the score to be transferred out matches the score to be transferred in as indicated by the second recording information;

a mobile quotient module: according to the second record information, the liquidity provider pays the integral to a local account Z2 of the block chain corresponding to the second system on an account Z5 of the block chain, and sends a corresponding transfer certificate B to a block chain verification node;

a verification module: the block chain verification node checks the transfer certificate A and the transfer certificate B, and the block chain is cleared after the check is passed; after clearing is completed, the local account Z1 of the block chain corresponding to the first system collects points to the local account Z3 of the block chain corresponding to the first system.

7. A blockchain-based carbon credit cross system transfer clearing system as claimed in claim 6 in which blockchain local account Z2 is synchronized with the corresponding carbon credit account before clearing is complete.

8. A blockchain-based carbon-integrated cross-system transfer liquidation system as in claim 6, wherein the first record information and the second record information each comprise: the transaction amount of the carbon points, the receiver information of the carbon points and the overtime time of the carbon point transaction, wherein the receiver information of the carbon points comprises: account number, contact address and address.

9. A blockchain-based carbon credit cross system transfer clearing system as claimed in claim 6 wherein the clearing of credits uses a hashed time lock agreement for carbon credit cross chain clearing.

10. A blockchain-based carbon credit cross system transfer clearing system as claimed in claim 9 in which the transaction of credits is cleared prior to randomly generating a key and broadcasting a withdrawal transaction;

the withdrawal transaction is: when the user does not obtain the correct key and signature within the set time, the carbon credit initiating the transaction will be returned to the user.

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