CN109658247B - System and method for invalidating frozen digital assets after return of managed assets - Google Patents
System and method for invalidating frozen digital assets after return of managed assets Download PDFInfo
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Abstract
The invention discloses a system and a method for invalidating frozen digital assets after return of managed assets, and relates to the technical field of digital assets. One embodiment of the method comprises: the asset account book system verifies the operation instruction for cancelling the down-link returned asset based on the operation instruction for cancelling the down-link returned asset with the signature of the asset hosting system submitted by the asset hosting system; after the verification is passed, asset invalidation is carried out according to the operation instruction of asset invalidation of downlink return, and a final caking is generated; the asset hosting system searches and obtains the operation result information of the obsolete assets in the asset book system and verifies the operation result information of the obsolete assets; and after the verification is passed, confirming that the assets on the chain are invalidated and completed. According to the implementation mode, after the managed assets are returned to the user to complete the registration of the right, the digital assets frozen on the chain before the return transfer are wasted, and the final block is generated, so that the final state of the digital assets on the chain is realized, and the asset downlink operation is completely completed.
Description
Technical Field
The invention relates to the technical field of digital assets, in particular to a system and a method for invalidating frozen digital assets after return of managed assets.
Background
At present, the blockchain technology is rapidly developed, and the blockchain is used as a decentralized novel distributed computing paradigm and provides technical support for the operation of various digital assets on a distributed network. The digital assets run on a distributed network of a block chain, the global multi-node consensus accounting is carried out in a mode of sharing an account book without depending on accounting of a specific third party or a central party, and a safety system of technical guarantee is realized through an encryption algorithm.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the existing block chain lacks the traditional asset hosting and complete asset information chain on-registration capability, the traditional asset uplink cannot be realized, and the method for on-chain asset downlink return cannot be realized.
Disclosure of Invention
In view of this, embodiments of the present invention provide a system and a method for invalidating a frozen digital asset after return of a custody asset, which can invalidate the digital asset frozen on a chain before return transfer after the custody asset returns to a user and completes right registration, and generate a final chunk corresponding to a down-chain returned asset, thereby implementing a termination state of the on-chain digital asset and completely completing an asset down-chain operation.
To achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a system for invalidating a frozen digital asset after return of a hosted asset, including:
an asset hosting system and an asset ledger system; wherein, the first and the second end of the pipe are connected with each other,
the asset ledger system verifies the operation instruction of the down-link returned asset invalidation based on the operation instruction of the down-link returned asset invalidation with the signature of the asset hosting system submitted by the asset hosting system; after the verification is passed, asset invalidation is carried out according to the operation instruction of the lower-chain returned asset invalidation, and a final caking corresponding to the lower-chain returned asset is generated;
the asset hosting system searches and obtains the operation result information of the obsolete assets in the asset book system and verifies the operation result information of the obsolete assets; and after the verification is passed, confirming that the assets on the chain are invalidated.
Optionally, the instruction of the operation of revoking the return assets from the lower link includes: the method comprises the steps of returning asset types, first obsolete asset information, a list of initial block numbers to be terminated and updated hosted asset registration index information with a storage service system signature;
the voided asset operation result information includes: the account book address of the obsolete asset, the asset class of the obsolete asset, the information of the second obsolete asset and the information of the terminal block;
the terminating block information includes: a terminated initial block record list corresponding to the terminating block, a terminating block number, and updated hosted asset registration index information with a storage service system signature.
Optionally, the verifying, by the asset ledger system, the operation instruction of canceling the downlink returned asset includes:
the asset account book system performs signature verification on the signature of the asset hosting system in the downlink return asset invalidation operation instruction; after the verification of the signature is confirmed to pass,
verifying the operation instruction for cancelling the downgoing return asset, wherein the verification content comprises the following steps:
whether an asset account book system address corresponding to the asset hosting system signature certificate is authorized to invalidate the assets to be invalidated or not;
whether the asset class of the returned asset is the same as the asset class of the frozen asset inquired from the asset ledger system; whether the assets to be invalidated in the invalidated asset transaction in the first invalidated asset information are consistent with the frozen asset quantity of the frozen asset information and the frozen asset record index inquired from the asset ledger system or not;
whether the initial block number list to be terminated is the same as the frozen initial block number list inquired from the asset account book system or not is judged;
and if so, returning result information of passing verification to the asset account book system.
Optionally, the verifying the obsolete asset operation result information by the asset hosting system includes:
verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information; verifying whether the terminal block information in the obsolete asset operation result information is correct or not; and verifying whether a list of the number of the initial blocks to be terminated, which are contained in the information of the terminated blocks, is consistent with a list of the number of the initial blocks to be terminated of the operation instruction for canceling the downlink returned asset;
and if so, returning the result information of passing the verification to the asset hosting system.
Optionally, after confirming that the revocation of the asset on the chain is completed, the asset hosting system further includes:
and sending the voided asset operation result information with the asset hosting system signature to the terminal system so as to inform the hosting asset of return transfer and complete voiding of the on-chain assets.
According to still another aspect of an embodiment of the present invention, there is provided a method of invalidating a frozen digital asset after return of a hosted asset, including:
verifying the operation instruction with the signature of the asset hosting system for canceling the downlink return asset; after the verification is passed, asset invalidation is carried out according to the operation instruction of the down-link returned asset invalidation, and a final block corresponding to the down-link returned asset is generated;
searching and obtaining the operation result information of the obsolete assets, and verifying the operation result information of the obsolete assets; and after the verification is passed, confirming that the assets on the chain are invalidated.
Optionally, the instruction of the operation of revoking the return assets from the lower link includes: the method comprises the steps that the asset type of returned assets, first obsolete asset information, an initial block number list to be terminated and updated managed asset registration index information with storage service system signatures are obtained;
the voided asset operation result information includes: the account book address of the obsolete asset, the asset class of the obsolete asset, the information of the second obsolete asset and the information of the terminal block;
the termination block information includes: a terminated initial block record list corresponding to the terminating block, a terminating block number, and updated hosted asset registration index information with a storage service system signature.
Optionally, verifying the operation instruction of invalidating the assets returned by the lower link includes:
the asset account book system performs signature verification on the asset hosting system signature in the downlink return asset invalidation operating instruction; after the verification of the signature is confirmed to pass,
verifying the operation instruction for cancelling the downgoing return asset, wherein the verification content comprises the following steps:
whether an asset account book system address corresponding to the asset hosting system signature certificate is authorized to invalidate the assets to be invalidated or not;
whether the asset class of the returned asset is the same as the asset class of the frozen asset queried from the asset ledger system; whether the assets to be invalidated in the first invalidated asset information are invalidated or not, and the frozen asset quantity of the frozen asset information and the frozen asset record index of the first invalidated asset information are consistent or not;
whether the initial block number list to be terminated is the same as the frozen initial block number list inquired from the asset account book system or not is judged;
if yes, the verification is determined to be passed.
Optionally, verifying the operation result information of the obsolete asset includes:
verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information; verifying whether the terminal block information in the obsolete asset operation result information is correct or not; verifying whether a terminated initial block number list contained in the terminated block information is consistent with a to-be-terminated initial block number list of a downlink returned asset voiding operation instruction;
if yes, the verification is determined to be passed.
One embodiment of the above invention has the following advantages or benefits: the asset account book system is adopted to verify the operation instruction of the scrapping of the returned assets of the lower chain, and the technical means of executing the instruction, generating the final caking corresponding to the returned assets of the lower chain and verifying the operation result information of the inquired scrapping assets by the asset hosting system realize that after the hosting assets are returned to the user to complete the right registration, the digital assets frozen on the chain before the return transfer are scrapped and the final caking corresponding to the returned assets of the lower chain are generated, thereby realizing the final state of the digital assets of the upper chain and completely finishing the operation of the lower chain of the assets.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
FIG. 1 is a schematic diagram of the major subsystems of a system for voiding frozen digital assets after return of a managed asset in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of the main flow of a system for voiding frozen digital assets after a custody asset return in accordance with an embodiment of the present invention;
fig. 3 is a schematic diagram of the main flow of a method for invalidating frozen digital assets after a managed asset is returned, according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Fig. 1 is a schematic diagram of the main subsystems of a system for invalidating frozen digital assets after return of a managed asset according to an embodiment of the present invention, and as shown in fig. 1, a system 100 for invalidating frozen digital assets after return of a managed asset comprises:
the asset ledger system 102 verifies a downlink return asset invalidation operation instruction based on the downlink return asset invalidation operation instruction with an asset hosting system signature submitted by the asset hosting system 101; after the verification is passed, asset invalidation is carried out according to the operation instruction of the down-link returned asset invalidation, and a final block corresponding to the down-link returned asset is generated;
the asset hosting system 101 searches and obtains the operation result information of the obsolete assets in the asset ledger system 102 and verifies the operation result information of the obsolete assets; and after the verification is passed, confirming that the assets on the chain are invalidated.
The asset hosting system 101 may be a system that hosts registration management of real-name registered assets under a chain by a user through a designated hosting party and registration management of a process of publishing digital assets on a blockchain by hosted assets, which the user may access through the Web or otherwise, the process of publishing digital assets including: an on-chain asset-up flow and an on-chain asset-down flow.
The asset ledger system 102 may be an asset ledger system based on block chain technology, and the operations of verification, recording, and the like may be implemented by the on-chain consensus node thereon.
After the escrow asset is returned to the user to complete the rights registration, the digital assets frozen on the chain prior to the return transfer operation may be voided; in the invalidation operation, terminal block information may be generated corresponding to the frozen initial block information, and the terminal block information may be used to store information corresponding to the initial block and return transfer information updated by the cloud storage hosting system, such as index information corresponding to the initial block. The final block can be used as the last transaction of the downlink digital asset transaction, and the asset query in the future is facilitated.
The method can realize the ending state of the digital assets on the chain, thereby completely finishing the asset downlink operation.
In some embodiments, the instructions for the operation of invalidating the back-linked asset include: the method comprises the steps of returning asset type, first obsolete asset information, a list of initial block numbers to be terminated and updated managed asset register index information with storage service system signatures.
The instruction of the down-link return asset invalidation operation is an instruction sent to the asset ledger system by the asset hosting system, and can be regarded as a starting signal of the whole invalidation operation. The first voided asset information may include the to-be-voided asset, the quantity of the to-be-voided assets, the transaction of the voided assets, and the like.
The storage service system can be a safe and credible storage service system, such as various existing cloud storage service systems, or a storage service system realized by adopting a block chain technology; the system may be one device, or may be configured by connecting a plurality of devices via a network.
The obsolete asset operation result information includes: the ledger address of the voided asset, the asset class of the voided asset, the second voided asset information, the end block information.
The obsolete asset operation result information is a result obtained by executing the instruction of the operation of adding back the obsolete asset in the downlink, and the operation result information of the obsolete asset can be obtained in the asset ledger system by searching the ledger address specific to the obsolete asset and all asset information related to the asset class of the returned asset in the instruction of adding back the obsolete asset in the downlink, and then according to the assets to be invalidated in the instruction of adding back the obsolete asset to be invalidated.
The obsolete asset information may include, among other things: the assets to be voided, the quantity of voided assets, and voided asset record indexes; the final agglomeration information may include: list of the number of the initial block to be terminated, the number of the terminal block, and so on.
Assets can be divided into: divisible digital assets and indivisible digital assets; partitionable digital assets means that the hosted asset contained in the initial block can be partitioned under the chain, such as: stocks, gold, etc. The non-divisible digital assets refer to managed assets contained in the initial block which are not divisible under the chain, such as houses, cultural relics, copyright, fund fusion and the like. For example, although both the digital asset property a and the digital asset property B belong to the property class, no operation is performed between the two properties. The asset class can be used for determining whether the assets belong to divisible digital assets or indivisible digital assets, and clearing in the downlink process is facilitated.
The terminating block information includes: a terminated initial block recording list corresponding to the terminating block, a terminating block number, and updated managed asset registration index information with a storage service system signature;
the final chunk is generated corresponding to the frozen initial chunk and may be considered the last transaction of the downlink digital asset transaction.
In some embodiments, the asset ledger system 102 validates the instruction to cancel the operation of the down-link return asset, including:
the asset account book system performs signature verification on the signature of the asset hosting system in the operation instruction of canceling the downlink returned asset; after the verification of the signature is confirmed to pass,
verifying the operation instruction for cancelling the downgoing return asset, wherein the verification content comprises the following steps:
whether an asset account book system address corresponding to the asset hosting system signature certificate is authorized to invalidate the assets to be invalidated or not;
whether the asset class of the returned asset is the same as the asset class of the frozen asset inquired from the asset ledger system; whether the assets to be invalidated in the first invalidated asset information are invalidated or not, and the frozen asset quantity of the frozen asset information and the frozen asset record index of the first invalidated asset information are consistent or not;
whether the initial block number list to be terminated is the same as the frozen initial block number list inquired from the asset account book system or not is judged;
and if so, returning result information of passing verification to the asset ledger system.
The asset ledger system can verify the signature of the asset hosting system in the operation instruction of canceling the downlink returned asset, determine that the instruction is sent by the asset hosting system and is a valid and credible instruction, and verify the content in the instruction to determine the correctness of the content after the verification is passed.
In some practical cases, the managed asset registration index information in the instruction of the operation of revoking the downlink returned asset can also be verified: the signature of the updated hosted asset registration index information can be verified firstly, hosted asset storage information in a storage service system can be inquired according to the index identification of the updated hosted asset registration index information, and tamper-resistant information of the updated hosted asset registration index information is verified according to the content of the hosted asset storage information.
The verification can determine the accuracy of the operation command of the lower-link returned asset invalidation and various information in the command, improves the safety of the invalidation operation process, and is an important link in the process.
In some embodiments, the asset hosting system verifies the obsolete asset operation result information including:
verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information; verifying whether the terminal block information in the obsolete asset operation result information is correct or not; verifying whether a terminated initial block number list contained in the terminated block information is consistent with a to-be-terminated initial block number list of a downlink returned asset voiding operation instruction;
and if so, returning the result information of passing the verification to the asset hosting system.
In a specific embodiment, the asset ledger system is further required to query the storage service system for updated asset hosting storage information according to the hosted asset registration identifier of the hosted asset registration index information, obtain the obsolete asset operation result information with the double signature of the asset hosting system and the storage service system, and verify that the double signature passes.
Specifically, the second revocation asset information includes: voided assets, amount of voided assets, voided asset record index; whether the asset corresponding to the second obsolete asset information is correct can be verified as follows:
verifying whether the voided assets are the same as the assets to be voided in the first voided asset information; verifying whether the amount of the scrapped assets is the same as the amount of the scrapped assets in the first scrapped asset information; verifying whether the voided assets and the amount corresponding to the voided asset record index are consistent with the voided assets and the amount;
if so, it may be determined that the second revocation asset information is validated.
The information of the termination block comprises: a list of the number of the initial block to be terminated and the number of the terminated block; whether the final caking information is correct can be verified according to the following method:
verifying whether the list of the block numbers of the initial blocks to be terminated in the terminated initial block number list and the list of the block numbers of the initial blocks to be terminated in the operation instruction for canceling the down-link returned assets are the same or not;
verifying whether the block number of the terminal block corresponds to the block number of the returned terminal record, simultaneously verifying that a list formed by the block numbers in the initial block record index information of all the returned terminal blocks is the same as a list of the initial block numbers to be terminated of the operation instruction for canceling the asset of the downlink return, and simultaneously verifying whether the hash information of the initial block record corresponding to the block number in the initial block record index information of each terminal block record conforms to the record content of the initial block;
verifying whether the new hosted asset registration index information with the storage service system signature of the terminal block information is the same as the new hosted asset registration index information with the cloud storage service system signature in the downlink returned asset invalidation operation instruction or not;
if so, the verification of the terminating block information can be determined to be passed.
In some embodiments, the asset hosting system, after confirming completion of the voiding of the on-chain asset, further comprises:
and transmitting the operation result information of the obsolete assets with the signatures of the asset hosting systems to the asset application terminal system so as to inform the hosting assets of returning transfer and completion of the obsolete assets on the chain.
After the multiple verification passes, the operation of invalidating the chain frozen digital assets in the process of asset downlink can be considered to be correct, the asset hosting system can send invalidation asset operation result information with asset hosting system signatures to the asset application terminal system to inform the hosting asset return transfer and the chain asset invalidation completion, and the result shows that the invalidation asset operation result is authenticated and credible.
FIG. 2 is a schematic diagram of the main flow of a system for voiding frozen digital assets after return of a managed asset in accordance with an embodiment of the present invention;
step S201, the asset hosting system submits a return asset invalidation operation instruction with an asset hosting system signature to the asset ledger system;
step S202, the on-chain common identification node of the asset account book system independently verifies the signature of the operation instruction for canceling the assets returned by the down-chain, and comprehensively verifies the content in the operation instruction for canceling the assets returned by the down-chain; after the verification is successful, the on-chain consensus node performs invalidation according to the operation instruction of chain return asset invalidation, and the invalidated asset transaction, the result asset and the final agglomeration are recorded on the on-chain consensus node of the asset ledger system;
step S203, the asset hosting system searches all asset information related to the specific account book address of the obsolete asset and the asset type of the down-link returned asset obsolete operation instruction in the asset account book system, and acquires the operation result information of the obsolete asset according to the assets to be obsolete of the returned asset obsolete operation instruction; verifying the operation result information of the obsolete assets;
and step S204, after the asset hosting system passes the verification, sending the operation result information of the obsolete asset with the signature of the asset hosting system and the return transfer completion information of the hosted asset (the signatures of both the asset hosting party and the asset hosting system) with the signature of the asset hosting system to the terminal system, and informing the hosted asset of return transfer and chain asset revocation completion.
Fig. 3 is a schematic diagram of the main flow of a method for invalidating frozen digital assets after return of a managed asset according to an embodiment of the present invention, as shown in fig. 3, including:
verifying the operation instruction with the signature of the asset hosting system for canceling the downlink return asset; after the verification is passed, asset invalidation is carried out according to the operation instruction of the down-link returned asset invalidation, and a final block corresponding to the down-link returned asset is generated;
searching and obtaining the operation result information of the obsolete assets, and verifying the operation result information of the obsolete assets; and after the verification is passed, confirming that the assets on the chain are invalidated.
In some embodiments, the instructions for the operation of relinquishing assets include: the method comprises the steps that the asset type of returned assets, first obsolete asset information, an initial block number list to be terminated and updated managed asset registration index information with storage service system signatures are obtained;
the obsolete asset operation result information includes: the account book address of the obsolete asset, the asset type of the obsolete asset, the second obsolete asset information and the termination block information;
the terminating block information includes: a list of terminated initial block records corresponding to the terminating block, a terminating block number, and updated hosted asset registration index information with storage service system signature.
In some embodiments, validating the downgoing return asset voiding operation instruction includes:
the asset account book system performs signature verification on the asset hosting system signature in the downlink return asset invalidation operating instruction; after the verification of the signature is confirmed to pass,
verifying the operation instruction for cancelling the downgoing return asset, wherein the verification content comprises the following steps:
whether an asset account book system address corresponding to the asset hosting system signature certificate is authorized to invalidate the assets to be invalidated or not;
whether the asset class of the returned asset is the same as the asset class of the frozen asset inquired from the asset ledger system; whether the assets to be invalidated in the first invalidated asset information are invalidated or not, and the frozen asset quantity of the frozen asset information and the frozen asset record index of the first invalidated asset information are consistent or not;
whether the list of the initial block numbers to be terminated is the same as the list of the frozen initial block numbers inquired from the asset account book system or not is judged;
if yes, the verification is determined to be passed.
In some embodiments, validating the voided asset operation result information includes:
verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information; verifying whether the terminal block information in the obsolete asset operation result information is correct or not; verifying whether a terminated initial block number list contained in the terminated block information is consistent with a to-be-terminated initial block number list of a downlink returned asset voiding operation instruction;
if yes, the verification is determined to be passed.
According to the technical scheme of the embodiment of the invention, the asset account book system is adopted to verify the operation instruction of the invalidation of the downlink returned assets, and the technical means of executing the instruction, generating the final caking corresponding to the downlink returned assets and verifying the inquired operation result information of the invalidation assets by the asset hosting system are adopted, so that the digital assets frozen on the chain before returning and transferring are invalidated and the final caking is generated after the managed assets are returned to the user to complete the right registration, and further the final state of the digital assets on the chain is realized, and the downlink operation of the assets is completely completed.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A system for invalidating a frozen digital asset after return of a hosted asset, comprising: an asset hosting system, an asset ledger system; wherein the content of the first and second substances,
the asset ledger system verifies the downlink return asset invalidation operation instruction based on the downlink return asset invalidation operation instruction with the asset hosting system signature submitted by the asset hosting system; after the verification is passed, asset invalidation is carried out according to the operation instruction of the lower-chain returned asset invalidation, and a final caking corresponding to the lower-chain returned asset is generated;
the asset hosting system searches and obtains the operation result information of the obsolete assets in the asset book system and verifies the operation result information of the obsolete assets; after the verification is passed, confirming that the assets on the chain are invalidated;
the operation instruction for canceling the return assets of the lower chain comprises the following steps: the method comprises the steps that the asset type of returned assets, first obsolete asset information, an initial block number list to be terminated and updated managed asset registration index information with storage service system signatures are obtained; the obsolete asset operation result information includes: the account book address of the obsolete asset, the asset type of the obsolete asset, the second obsolete asset information and the termination block information; the termination block information includes: a terminated initial block recording list corresponding to the terminating block, a terminating block number, and updated managed asset registration index information with a storage service system signature;
the asset account book system verifies the operation instruction of canceling the down-link returned asset, and the method comprises the following steps: the asset account book system performs signature verification on the signature of the asset hosting system in the downlink return asset invalidation operation instruction; after the signature verification is confirmed to pass, verifying the operation instruction of cancelling the downlink returned asset, wherein the verification content comprises: whether the address of the asset account book system corresponding to the signature certificate of the asset hosting system is authorized to invalidate the assets to be invalidated or not; whether the asset class of the returned asset is the same as the asset class of the frozen asset queried from the asset ledger system; whether the assets to be invalidated in the invalidated asset transaction in the first invalidated asset information are consistent with the frozen asset quantity of the frozen asset information and the frozen asset record index inquired from the asset ledger system or not; whether the list of the initial block numbers to be terminated is the same as the list of the frozen initial block numbers inquired from the asset account book system or not is judged; if yes, returning result information of passing verification to the asset account book system;
the asset hosting system verifies the obsolete asset operation result information, and the verification comprises the following steps: verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information; verifying whether the terminal block information in the obsolete asset operation result information is correct or not; verifying whether a terminated initial block number list contained in the terminated block information is consistent with a to-be-terminated initial block number list of a downlink returned asset voiding operation instruction; and if so, returning the result information of passing the verification to the asset hosting system.
2. The system of claim 1, wherein the asset hosting system, after confirming completion of revocation of an asset on a chain, further comprises:
and sending the voided asset operation result information with the asset hosting system signature to the terminal system so as to inform the hosting asset of return transfer and complete voiding of the on-chain assets.
3. A method for invalidating frozen digital assets after a custody asset return, comprising:
verifying a downlink return asset revocation operation instruction with an asset hosting system signature; after the verification is passed, asset invalidation is carried out according to the operation instruction of the down-link returned asset invalidation, and a final block corresponding to the down-link returned asset is generated;
searching and obtaining the operation result information of the obsolete assets, and verifying the operation result information of the obsolete assets; after the verification is passed, confirming that the assets on the chain are invalidated;
the operation instruction for canceling the down-link return assets comprises the following steps: the method comprises the steps that the asset type of returned assets, first obsolete asset information, an initial block number list to be terminated and updated managed asset registration index information with storage service system signatures are obtained; the voided asset operation result information includes: the account book address of the obsolete asset, the asset type of the obsolete asset, the second obsolete asset information and the termination block information; the termination block information includes: a terminated initial block recording list corresponding to the terminating block, a terminating block number, and updated managed asset registration index information with a storage service system signature;
verifying the operation instruction for canceling the downlink returned assets, comprising: the asset account book system performs signature verification on the signature of the asset hosting system in the downlink return asset invalidation operation instruction; after the signature verification is confirmed to pass, verifying the operation instruction of cancelling the downlink returned asset, wherein the verification content comprises: whether the asset account book system address corresponding to the asset hosting system signature certificate is authorized to invalidate the assets to be invalidated or not; whether the asset class of the returned asset is the same as the asset class of the frozen asset inquired from the asset ledger system; whether the assets to be invalidated in the first invalidated asset information are invalidated or not, and the frozen asset quantity of the frozen asset information and the frozen asset record index of the first invalidated asset information are consistent or not;
whether the list of the initial block numbers to be terminated is the same as the list of the frozen initial block numbers inquired from the asset account book system or not is judged; if yes, determining that the verification is passed;
verifying the operation result information of the obsolete asset, comprising: verifying whether second obsolete asset information in the obsolete asset operation result information is consistent with the first obsolete asset information;
verifying whether the terminal block information in the obsolete asset operation result information is correct or not; and verifying whether a list of the number of the initial blocks to be terminated, which are contained in the information of the terminated blocks, is consistent with a list of the number of the initial blocks to be terminated of the operation instruction for canceling the downlink returned asset; if yes, the verification is determined to be passed.
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