CN111488615A - Cross-link realization method and device for service data block chain - Google Patents

Cross-link realization method and device for service data block chain Download PDF

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CN111488615A
CN111488615A CN202010271090.3A CN202010271090A CN111488615A CN 111488615 A CN111488615 A CN 111488615A CN 202010271090 A CN202010271090 A CN 202010271090A CN 111488615 A CN111488615 A CN 111488615A
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data
user
block chain
service
chain
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吉建勋
杨慧
胡壮
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Beijing Ruice Technology Co Ltd
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Beijing Ruice Technology Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/64Protecting data integrity, e.g. using checksums, certificates or signatures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22Indexing; Data structures therefor; Storage structures
    • G06F16/2228Indexing structures
    • G06F16/2246Trees, e.g. B+trees
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22Indexing; Data structures therefor; Storage structures
    • G06F16/2228Indexing structures
    • G06F16/2255Hash tables
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24Querying
    • G06F16/245Query processing
    • G06F16/2455Query execution
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • G06F21/6227Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database where protection concerns the structure of data, e.g. records, types, queries
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network

Abstract

The application discloses a method and a device for realizing cross-link of a business data block chain, which are applied to the business data block chain in a cross-link system of the business data block chain; the cross-link system of the service data block chain comprises the service data block chain, a cross-link gateway, a cross-link relay and a plurality of service data block chains, wherein the method comprises the following steps: receiving target service operation data, wherein the target service operation data is the operation of a user on the target service data; determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway; and calling the service operation data exchange service deployed on the target service data block chain through the cross-link relay so as to complete the data exchange processing between the service data block chain and the target service data block chain. The method and the device realize the cross-linking of the business operation data, and the business operation data not only comprises the operation of integration, but also comprises the operation of an entity.

Description

Cross-link realization method and device for service data block chain
Technical Field
The invention relates to the technical field of internet big data, and discloses a method and a device for realizing a cross-link of a service data block chain.
Background
Currently, the blockchain technology is a distributed stored ledger that uses technologies such as encryption algorithm and consensus mechanism. With the use of blockchain technology, more and more internet data is stored on the blockchain.
In the existing block chain, only transaction data can be stored, wherein the transaction data comprises a transfer party address, a receiving party address and a transfer amount; but various business data (e.g., internet-related data such as evidence-storing data, traceability data, financial data, travel data, search data, self-media data, research data, advertisement data, e-commerce data, community data, knowledge question and answer data, knowledge payment data, shared bicycle data, recruitment data, living service data, renting data, voting data, OTO data (also referred to as online-to-offline data), social data, praise data, evaluation data, and network appointment data) may be linked up.
In addition, for an application client in the same industry, when there are multiple service data block chains, each service data block chain may store different operation data of the same user of the same application, for example: for the e-commerce industry, a user A purchases a commodity B on a business data block chain a; the user a wants to approve or comment the purchased commodity B on the business data block chain B, but the record that the user a purchased the commodity B cannot be verified on the business data block chain B, so that the user a cannot approve or comment on the business data block chain B, the mode that the user uses the block chain is limited, and the user experience is poor. How to realize that the user a purchases the commodity B on the service data block chain a, and the data is synchronously sent to the service data block chain B (or service data block chains of other multiple same industries) in a chain-crossing manner, so that the user a can also perform a chain-linking operation of approval or comment after purchasing the commodity B on the service data block chain B, which is also a problem to be solved.
The foregoing description is merely for convenience in understanding and is not to be construed as limiting the prior art to the present application.
Disclosure of Invention
Based on the above problems, the present application provides a method and an apparatus for implementing a cross-link of a service data block chain, where the method implements a cross-link of service operation data, and the service operation data includes not only an operation of integration but also an operation of an entity; after the service operation data are across-chain, the same user can access the same service operation data when accessing different service data block chains, and the block chain use experience of the user is improved.
The first aspect of the application discloses a method for realizing a cross-chain of a service data block chain, which is applied to the service data block chain in a cross-chain system of the service data block chain; the inter-chain system of the service data block chain comprises the service data block chain, an inter-chain gateway, an inter-chain relay and a plurality of service data block chains, wherein the service data block chain is in butt joint with the plurality of service data block chains through the inter-chain gateway and the inter-chain relay; the method comprises the following steps:
receiving target service operation data, wherein the target service operation data is the operation of a user on the target service data;
determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway;
and calling a service operation data exchange service deployed on the target service data block chain through cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
In one possible implementation, the switching service between the service data block chain and the target service data block chain includes:
the target business data block chain establishes a mapping relation of the target business operation data, and the target business operation data mapping relation is associated with the business data block chain, so that when a user accesses the target business operation data in the target business data block chain, the business data block chain is accessed according to the mapping relation of the target business operation data; or
And the target service data block chain stores the target service operation data so that a user can directly access the target service operation data through the target service data block chain.
In a possible implementation manner, the service data block chain and/or the target service data block chain stores a data state of a target service operated by a user by using a state tree and a relation tree; wherein the content of the first and second substances,
the state tree stores one or more of user data, entity data and integral data, and stores the data state of a user after the user operates a target service;
the relation tree stores one or more of user data-integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data, and stores the relation between data states after a user operates a target service.
In a possible implementation manner, the service data block chain determines, through a cross-chain gateway, a target service data block chain corresponding to the target service operation data from a plurality of service data block chains; the method specifically comprises the following steps:
the inter-chain gateway stores the industry identification of the target business operation data, the industry identification of the target business data block chain and the corresponding relation between the industry identification of the target business operation data and the industry identification of the target business data block chain; wherein the content of the first and second substances,
the industry mark comprises one or more of a evidence storage mark, a tracing mark, a finance mark, a tourism mark, a searching mark, a self-media mark, a research mark, an advertisement mark, an e-commerce mark, a community mark, a knowledge question and answer mark, a knowledge payment mark, a shared bicycle mark, a recruitment mark, a living service mark, a house renting mark, a voting mark, an online to offline mark, a social mark, a praise mark, an evaluation mark and a network appointment mark.
In one possible implementation, the inter-chain system further includes a plurality of integral data block chains, and the service data block chain interfaces with the plurality of integral data block chains through an inter-chain gateway and an inter-chain relay; the method further comprises the following steps:
receiving target business operation data, wherein the target business operation data comprises operation of integral data;
determining a target integral data block chain corresponding to the target service operation data from a plurality of integral block chains through a cross-link gateway;
and calling integral operation data exchange service deployed on the target integral data block chain through cross-link relay so as to complete integral data exchange processing between the service data block chain and the target integral data block chain.
In a possible implementation manner, after the completing the integral data exchange processing between the service data block chain and the target integral data block chain, the method includes:
the block chain node stores cross-chain integral data through user data-integral data; wherein the relation tree of the user data-integral data stores a tree root of a relation subtree, and values of leaf nodes in the relation subtree store integral data across chains; or storing the cross-chain integral data by the value of the leaf node in the user data-integral data relation tree in an array or hash table mode.
In one possible implementation, the digital account of the user includes one or more of user data, entity data, point data, user data-entity data, user data-user operations, and user data-message data;
after the message data in the user data-message data respond to the viewing operation of the user, the relation tree stores the tree root of a relation subtree, and the value of a leaf node in the relation subtree stores a point viewing reward or an entity viewing reward; wherein the message data comprises a point view reward or an entity view reward; or
And storing the point viewing reward or the entity viewing reward by the value of the leaf node of the relational tree in an array or a hash table mode.
In one possible implementation manner, any one of user data, entity data, point data, user data-message data, user data-entity data, user data-user operation data, entity data-point data and entity data-user data is stored in the database supporting attribute query in a form of a data table, so that a user can query according to attribute fields in the data table; the data processing method comprises the following steps that one kind of data corresponds to one data table, any line in any one data table corresponds to one piece of data, and one kind of data comprises multiple lines of data; the database supporting attribute query comprises a relational database and a memory database; or
Any one of user data, entity data, integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data is stored in a KV database in a key value pair mode.
The second aspect of the present application discloses a device for implementing inter-chain of a service data block chain, where the device is a service data block chain in an inter-chain system of the service data block chain; the inter-chain system of the service data block chain comprises the service data block chain, an inter-chain gateway, an inter-chain relay and a plurality of service data block chains, wherein the service data block chain is in butt joint with the plurality of service data block chains through the inter-chain gateway and the inter-chain relay;
the business data block link receives target business operation data, and the target business operation data is the operation of a user on the target business data;
determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway;
and calling a service operation data exchange service deployed on the target service data block chain through cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
A third aspect of the present application provides a computer-readable storage medium, which stores computer instructions, and when the computer instructions are executed by a processor, the computer instructions implement any one of the above-mentioned technical solutions.
A fourth aspect of the present application provides an electronic device, which includes a processor configured to execute any one of the above technical solutions.
The method and the device realize the cross-linking of the business operation data, wherein the business operation data not only comprises the operation of integration, but also comprises the operation of an entity; after the service operation data are across-chain, the same user can access the same service operation data when accessing different service data block chains, and the block chain use experience of the user is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a cross-link implementation method for a service data block chain according to the present disclosure;
fig. 2 is a schematic block head structure diagram of a service data block chain according to the present application;
fig. 3 is a schematic structural diagram of a device for implementing cross-link of a service data block chain according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first" and "second" in this application are used for convenience of understanding only, and are not to be construed as sequential or limiting in any way.
For the purpose of facilitating understanding of the embodiments of the present invention, the following description will be further explained with reference to specific embodiments, which are not to be construed as limiting the embodiments of the present invention.
Blockchains are generally divided into three types: public chain (Public Blockchain), private chain (PrivateBlockchain) and alliance chain (Consortium Blockchain). In addition, there are various types of combinations, such as private chain + federation chain, federation chain + public chain, and other different combinations. The most decentralized of these is the public chain. The public chain is represented by bitcoin and ether house, and the participators joining the public chain can read the data record on the chain, participate in transaction, compete for accounting right of new blocks, and the like.
Furthermore, each participant (i.e., node) is free to join and leave the network and perform related operations. Private chains are the opposite, with the network's write rights controlled by an organization or organization and the data read rights specified by the organization. Briefly, a private chain can be a weakly centralized system with strictly limited and few participating nodes. This type of blockchain is more suitable for use within a particular establishment.
Based on the basic characteristics of a blockchain, a blockchain is usually composed of several blocks. The time stamps corresponding to the creation time of the block are recorded in the blocks respectively, and all the blocks form a time-ordered data chain according to the time stamps recorded in the blocks strictly.
The real data generated by the physical world can be constructed into a standard transaction (transaction) format supported by a block chain, then is issued to the block chain, is identified by node equipment in the block chain, and is packed into a block by the node equipment serving as an accounting node in the block chain after the identification is achieved, and is subjected to persistent evidence storage in the block chain.
In the field of blockchain, an important concept is Account (Account); taking an ether house as an example, the ether house generally divides an account into an external account and a contract account; the external account is an account directly controlled by the user; and the contract account is created by the user through an external account, the account containing the contract code (i.e. the smart contract).
Of course, for some blockchain items derived based on the ethernet framework, the account types supported by the blockchain may be further expanded, and are not particularly limited in this specification.
For accounts in a blockchain, the account status of the account is usually maintained through a structure. When a transaction in a block is executed, the status of the account associated with the transaction in the block chain is also typically changed.
Taking etherhouses as an example, the structure of an account usually includes fields such as Balance, Nonce, Code, and storage. Wherein:
a Balance field for maintaining the current account Balance of the account;
a Nonce field for the number of transactions for the account; the counter is used for guaranteeing that each transaction can be processed only once, and replay attack is effectively avoided.
A code field for maintaining a contract code for the account; in practical applications, only the hash value of the contract code is typically maintained in the code field; thus, the code field is also commonly referred to as a codehash field. For external accounts, this field is null.
storage field to maintain the storage of the account (default to empty). In practical application, the storage field only maintains the root node of an MPT (Merkle Patricia Trie) tree constructed based on the storage content of the account; thus, the storage field is also commonly referred to as the storageRoot field.
Wherein, for the external account, the code field and storage field shown above are null values.
Most blockchain items typically use Merkle trees; alternatively, the data is stored and maintained based on the data structure of the Merkle tree. Taking etherhouses as an example, the etherhouses use MPT tree (a Merkle tree variation) as a data organization form for organizing and managing important data such as account status, transaction information, and the like.
The Etherhouse designs three MPT trees, namely an MPT state tree, an MPT transaction tree and an MPT receipt tree, aiming at data needing to be stored and maintained in a block chain.
The MPT state tree is an MPT tree organized by account state data (state) of all accounts in the block chain; the MPT transaction tree is transaction data (transaction) in a block and is organized into the MPT tree; the MPT receipt tree is an MPT tree organized by transaction receipts (receipts) corresponding to each transaction generated after the transaction in the block is completed. The hash values of the root nodes of the MPT state tree, MPT transaction tree, and MPT receipt tree shown above are all added to the block header.
Wherein the MPT transaction tree and the MPT receipt tree correspond to tiles, each tile having its own MPT transaction tree and MPT receipt tree. The MPT state tree is a global MPT tree, which does not correspond to a specific tile, but covers account state data of all accounts in the tile chain.
The above is a description of a storage structure in a conventional block chain, and the following is a description of a storage structure of a service data block chain in the present application.
The method is applied to the service data block chain in a chain-crossing system of the service data block chain; the inter-link system of the service data block link comprises a service data block link, an inter-link gateway, an inter-link relay and a plurality of service data block links, and the service data block link is in butt joint with the plurality of service data block links through the inter-link gateway and the inter-link relay. As shown in fig. 1, the method includes S101-S103.
The entity information in the present specification refers to abstraction of objective objects and also refers to specific objective objects, the entity information includes associated attributes and non-associated attributes, and the associated attributes refer to that attribute values can be increased or decreased; the user information refers to description information of a user, and the user information comprises a user address; the point information is point information issued by the user, and is point information other than the original points on the block chain, and the point information includes the name and the total amount of the point.
S101, receiving target service operation data, wherein the target service operation data is the operation of a user on the target service data.
And S102, determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway.
S103, calling a service operation data exchange service deployed on the target service data block chain through a cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
In one example, the switching service between the traffic data blockchain and the target traffic data blockchain includes:
the target business data block chain establishes a mapping relation of the target business operation data, and the target business operation data mapping relation is associated with the business data block chain, so that when a user accesses the target business operation data in the target business data block chain, the business data block chain is accessed according to the mapping relation of the target business operation data; or
And the target service data block chain stores the target service operation data so that a user can directly access the target service operation data through the target service data block chain.
At this time, a mapping relationship is established, which is equivalent to establishing a trust relationship between the target service data block chain and the service data block chain, and target service operation data of the service data block chain can be accessed through the target service data block chain, and target service data of the target service data block chain can also be accessed through the service data block chain. Under the condition, the cross-chain can be completed by only storing one part of target business operation data and establishing one-time association relation.
For the target service data block chain to directly store the target service operation data, it is equivalent to that the target service data block chain and the service data block chain respectively store one copy of the target service operation data, that is, the cross-chain is completed by a copying manner. At the moment, when the user inquires, the inquiring efficiency is high.
In one example, the service data block chain and/or the target service data block chain stores a data state of a user after the user operates a target service by using a state tree and a relation tree; wherein the content of the first and second substances,
the state tree stores one or more of user data, entity data and integral data, and stores the data state of a user after the user operates a target service;
the relation tree stores one or more of user data-integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data, and stores the relation between data states after a user operates a target service.
In one example, the service data block chain determines a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway; the method specifically comprises the following steps:
the inter-chain gateway stores the industry identification of the target business operation data, the industry identification of the target business data block chain and the corresponding relation between the industry identification of the target business operation data and the industry identification of the target business data block chain; wherein the content of the first and second substances,
the industry mark comprises one or more of a evidence storage mark, a tracing mark, a finance mark, a tourism mark, a searching mark, a self-media mark, a research mark, an advertisement mark, an e-commerce mark, a community mark, a knowledge question and answer mark, a knowledge payment mark, a shared bicycle mark, a recruitment mark, a living service mark, a house renting mark, a voting mark, an online to offline mark, a social mark, a praise mark, an evaluation mark and a network appointment mark.
Performing chain crossing in the same industry, namely performing data synchronization in the same industry by means of a block chain; for example: the service data blockchain a is added with a picture or a character or a video, and the picture, the character or the video can be synchronized on the service data blockchain b in the same industry, so that for the same user A, the user A does not need to issue the picture or the character or the video on the service data blockchain a and the service data blockchain b respectively, the experience of the user using the blockchain can be improved, and barriers under the existing centralized server scene are opened (for example, the same user issues a microblog mood, wants a WeChat friend to know, and needs to issue a friend circle, wants a QQ friend to know, and needs to issue a QQ space).
In one example, the cross-chain system further comprises a plurality of integral data blockchains, the traffic data blockchains interface with the plurality of integral data blockchains through cross-chain gateways and cross-chain relays; the method further comprises the following steps:
receiving target business operation data, wherein the target business operation data comprises operation of integral data;
determining a target integral data block chain corresponding to the target service operation data from a plurality of integral block chains through a cross-link gateway;
and calling integral operation data exchange service deployed on the target integral data block chain through cross-link relay so as to complete integral data exchange processing between the service data block chain and the target integral data block chain.
At this time, the target service operation data in the service data block chain relates to the operation of the integral data, and the operation of the integral data can be synchronized to other integral data block chains, so that a user can directly view the operation of the integral data by accessing other integral data block chains.
It should be noted that the synchronization between the service data block chain and the integral data block chain is similar to the synchronization between the service data block chain and the target service data block chain; when the service data block chain is synchronous with the integral data block chain, the related target service operation data is integral data operation; and when the service data block chain is synchronized with the target service data block chain, the operation of the service data is involved, and the operation of the service data comprises the operation of integration and the operation of an entity.
In one example, after the completing the integral data exchange process between the traffic data block chain and the target integral data block chain, the method includes:
the block chain node stores cross-chain integral data through user data-integral data; wherein the relation tree of the user data-integral data stores a tree root of a relation subtree, and values of leaf nodes in the relation subtree store integral data across chains; or storing the cross-chain integral data by the value of the leaf node in the user data-integral data relation tree in an array or hash table mode.
In one example, the digital account of the user includes one or more of user data, entity data, point data, user data-entity data, user data-user operations, and user data-message data;
after the message data in the user data-message data respond to the viewing operation of the user, the relation tree stores the tree root of a relation subtree, and the value of a leaf node in the relation subtree stores a point viewing reward or an entity viewing reward; wherein the message data comprises a point view reward or an entity view reward; or
And storing the point viewing reward or the entity viewing reward by the value of the leaf node of the relational tree in an array or a hash table mode.
In this regard, it should be noted that, compared to the digital account in this specification, the existing cross-linking scheme is only a cross-linking of user data-integral data, and cannot be used for cross-linking of user data-entity data, user data-user operation, and user data-message data.
The user data-entity data comprises the operation of different entities (such as the operation of business data of commodities, self-media messages, questionnaires, online appointment cars, search results and the like) performed by the same user, and reflects the entity operation condition of the same user; user data-user operations include associations between the same user and multiple user operations thereof, the user operations including entity or point operations, reflecting the same user's circumstances of having performed those operations; the user data-message data includes that the user A receives the messages sent by the other user B, and the messages can be advertisement messages or commodity preferential messages. The digital account of the user comprehensively reflects the operation condition of the user on the blockchain, so that the user can inquire the condition of the account at any time, and the experience of the user in using the blockchain is greatly improved.
In one example, any one of user data, entity data, point data, user data-message data, user data-entity data, user data-user operation data, entity data-point data and entity data-user data is stored in the database supporting attribute query in the form of a data table, so that a user can query according to attribute fields in the data table; the data processing method comprises the following steps that one kind of data corresponds to one data table, any line in any one data table corresponds to one piece of data, and one kind of data comprises multiple lines of data; the database supporting attribute query comprises a relational database and a memory database; or
Any one of user data, entity data, integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data is stored in a KV database in a key value pair mode.
In one example, the storage manner of the state tree and the relationship tree may also be referred to as a relationship coefficient database on the chain; the entity data, the user data and the integral data in the above are also the entity information, the user information and the integral information; the incidence relation stored in the link incidence coefficient database comprises the incidence relation of entity information and user information; wherein, one entity information corresponds to one or more user information.
For example: on an electronic commerce platform (such as Taobao, Tianmao and Jingdong shopping mall) of the Internet, a commodity is purchased by a plurality of different users; on a self-media platform (such as WeChat and microblog) on the Internet, one piece of self-media data is praised or commented by a plurality of users; the one-to-many relationship between such entities and users can be expressed by using the association relationship between the entity information and the user information. The method and the device facilitate chaining of the service data and query of the service data by the user.
In one example, the association stored in the on-chain association coefficient database includes an association of user information and point information; wherein one user information corresponds to one or more point information.
At this time, a user may have multiple points; for example: a user has both native credits on the blockchain and other types of credits. The incidence relation can describe the one-to-many relation between the user and the score, and meanwhile, the user can conveniently inquire. It should be noted that a user in the blockchain system at least has the native scores of the blockchain system; it is possible to have credits issued by other users or by themselves.
In one example, the association stored in the on-chain association coefficient database includes an association of entity information and point information; wherein one entity information corresponds to one or more integral information.
At this time, equivalently, on the block chain, the securitization of the entity is realized; for example: the ownership of a commodity corresponds to an integral, and the transfer of the integral corresponds to the transfer of the ownership of the commodity; the ownership of a set of houses corresponds to a predetermined number of points, the number of owned points corresponds to the ownership proportion of the houses, and namely, the houses are owned to sell or rent the prices in the same proportion.
As described above, any one of the user information (e.g., Account field), credit information (e.g., Asset field), entity information (e.g., Object field), entity information-user information (e.g., Object-Account field), user information-credit information (e.g., Account-Asset field), and entity information-credit information (e.g., Object-Asset field) may be implemented by using an MPT status tree, and the tree roots of various MPT status trees are stored in the block header. As shown in FIG. 2, the user Action of the tile store (e.g., the Action field), and the root of the MPT state tree of the Receipt information stored by the on-chain database (e.g., the Recept field) are also stored in the tile header.
It should be noted that the block in the blockchain system includes a block header and a block body, the block header stores summary information, and the block body stores transfer information (also called transaction information). In this specification, the user operation is stored in a block of the block, and a digest value (also referred to as a hash value) of the user operation is stored in a block header; the on-chain state database in this specification is also part of the storage of the blockchain system, and each blockchain node has the on-chain state database and the block to store the service data in this specification.
In one example, the on-chain database is a database supporting attribute query or a KV database, wherein the database supporting attribute query includes a relational database and an in-memory database.
In one example, the attribute types of the user information and/or the entity information include an associated attribute and a non-associated attribute; and the attribute value of the associated attribute is automatically increased or decreased according to the user operation data.
In one example, any one of the user information, the entity information, the point information, the entity information-user information, the user information-point information, and the entity information-point information is organized into an MPT state tree; the MPT state tree is a merkel tree Merkle variety of a tree structure fused with a prefix tree Trie, and the merkel tree Merkle is a merklePatricia tree state tree.
In one example, any one of the user information, the entity information, the point information, the user information-the point information, the entity information-the point information and the entity information-the user information is stored in the database supporting attribute query in the form of a data table, so that a user can query according to an attribute field in the data table; one kind of information corresponds to one data table, any line in any one data table corresponds to one piece of information, and one kind of information comprises a plurality of lines of information; the database supporting attribute query comprises a relational database and an in-memory database.
In one example, any one of the user information, the entity information, the point information, the user information-the point information, the entity information-the point information, and the entity information-the user information is stored in a KV database and stored in a key-value pair manner.
In one example, any one of the user information, the entity information, the point information, the entity information-user information, the user information-point information, and the entity information-point information is organized into an MPT state tree; wherein the root of any one of the MPT state trees is stored in the block header.
In one example, the value of a leaf node in the relationship tree stores one or more of user information-point information, entity information-point information, and entity information-user information in a hash table or array.
In one example, the value of a leaf node of the relationship tree is to store a tree root of a relationship sub-tree that stores one or more of user information-score information, entity information-score information, and entity information-user information, the relationship sub-tree being a merkel tree or an MPT tree.
In the above, the information is stored in the way of the MPT state tree, and the user can query through the address information; directly adopting a user address, a point address and an entity address message to inquire information aiming at user information, point information and entity information; and aiming at the entity information-user information, the user information-integral information and the entity information-integral information, respectively adopting an entity address, a user address and an entity address to carry out information inquiry.
In addition, the user address can be obtained by carrying out multiple times of hash operation according to the user public key; the point address or the entity address may be obtained by a user operation of creating a point or an entity, for example: and carrying out multiple times of hash operation on the user operation, and selecting characters with preset digits from the obtained hash value as integral addresses or entity addresses.
In one example, the on-chain database employs a database supporting attribute queries, wherein the on-chain database includes a relational database and an in-memory database. That is, any state information of user information, point information, entity information-user information, user information-point information, and entity information-point information is stored by using a database supporting attribute query, the relational database can be MySql, and the memory database can be MongoDB.
At this time, by using the database supporting attribute query, the user information, the point information, the entity information-user information, the user information-point information, and the entity information-point information can be queried by using corresponding attributes, and the query efficiency of attribute query is higher compared with the query by using an address on a block chain. Meanwhile, the MPT state tree root of the above information is stored in the chunk header, as shown in fig. 2. In actual use, if any of the MPT state trees is not used, the MPT state tree can be set to empty.
In the specification, any one of user information, point information, entity information-user information, user information-point information and entity information-point information is organized into a data structure of an MPT state tree, namely a data logic structure, the adopted storage structure can be a KV database, such as L evalDB database, and also can be a MySql and MongoDB database which support attribute query, and the databases are physical storage structures.
The method and the device realize the cross-linking of the business operation data, wherein the business operation data not only comprises the operation of integration, but also comprises the operation of an entity; after the service operation data are across-chain, the same user can access the same service operation data when accessing different service data block chains, and the block chain use experience of the user is improved.
The present specification enables the business data to be uplink, and enables various association relationships of the business data to be uplink; the benefits of the business data uplink include, but are not limited to, true trustworthiness, traceability, personal attribution of data rights, etc.
In addition, various attributes of the service data can be stored on the block chain by storing user operation data in the blocks and storing state data and state associated data in the on-chain state database, so that the problem of chaining the service data is solved; in addition, the state data and the state associated data stored in the state database on the chain are convenient for the user to access.
The present specification also discloses a device for implementing inter-chain of a service data block chain, where the device is a service data block chain in an inter-chain system of the service data block chain; the inter-link system of the service data block link comprises a service data block link, an inter-link gateway, an inter-link relay and a plurality of service data block links, and the service data block link is in butt joint with the plurality of service data block links through the inter-link gateway and the inter-link relay.
The business data block link receives target business operation data, and the target business operation data is the operation of a user on the target business data;
determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway;
and calling a service operation data exchange service deployed on the target service data block chain through cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
The method and the device realize the cross-linking of the business operation data, wherein the business operation data not only comprises the operation of integration, but also comprises the operation of an entity; after the service operation data are across-chain, the same user can access the same service operation data when accessing different service data block chains, and the block chain use experience of the user is improved.
The same or similar parts in the above device embodiments and the above method embodiments can be referred to each other, and are not described herein again.
The present specification also discloses a computer readable storage medium storing computer instructions which, when executed by a processor, implement any one of the above-mentioned technical solutions.
The present specification also discloses an electronic device comprising a processor configured to perform any of the above-described technical solutions.
Meanwhile, the application also provides an embodiment of the entity device.
Blockchain node, fig. 3 shows a schematic structural diagram of a computer device, which may include: a processor 310, a memory 320, an input/output interface 330, a communication interface 340, and a bus 350. Wherein the processor 340, the memory 320, the input/output interface 330, and the communication interface 340 are communicatively coupled to each other within the device via a bus 350.
The processor 310 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solutions provided in the embodiments of the present specification.
The Memory 320 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random access Memory), a static storage device, a dynamic storage device, or the like. The memory 320 may store an operating system and other application programs, and when the technical solution provided by the embodiments of the present specification is implemented by software or firmware, the relevant program codes are stored in the memory 320 and called to be executed by the processor 310.
The input/output interface 330 is used for connecting an input/output module to realize information input and output. The i/o module may be configured as a component in a device (not shown) or may be external to the device to provide a corresponding function. The input devices may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output devices may include a display, a speaker, a vibrator, an indicator light, etc.
The communication interface 340 is used for connecting a communication module (not shown in the figure) to implement communication interaction between the present device and other devices. The communication module can realize communication in a wired mode (such as USB, network cable and the like) and also can realize communication in a wireless mode (such as mobile network, WIFI, Bluetooth and the like).
Bus 350 includes a path that transfers information between the various components of the device, such as processor 310, memory 320, input/output interface 330, and communication interface 340.
It should be noted that although the above-mentioned device only shows the processor 310, the memory 320, the input/output interface 330, the communication interface 340 and the bus 350, in a specific implementation, the device may also include other components necessary for normal operation. In addition, those skilled in the art will appreciate that the above-described apparatus may also include only those components necessary to implement the embodiments of the present description, and not necessarily all of the components shown in the figures.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the scope of the present invention should be included in the scope of the present invention.

Claims (10)

1. The method for realizing the cross-chain of the service data block chain is characterized in that the method is applied to the service data block chain in a cross-chain system of the service data block chain; the inter-chain system of the service data block chain comprises the service data block chain, an inter-chain gateway, an inter-chain relay and a plurality of service data block chains, wherein the service data block chain is in butt joint with the plurality of service data block chains through the inter-chain gateway and the inter-chain relay; the method comprises the following steps:
receiving target service operation data, wherein the target service operation data is the operation of a user on the target service data;
determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway;
and calling a service operation data exchange service deployed on the target service data block chain through cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
2. The method of claim 1, wherein the exchanging service between the service data blockchain and the target service data blockchain comprises:
the target business data block chain establishes a mapping relation of the target business operation data, and the target business operation data mapping relation is associated with the business data block chain, so that when a user accesses the target business operation data in the target business data block chain, the business data block chain is accessed according to the mapping relation of the target business operation data; or
And the target service data block chain stores the target service operation data so that a user can directly access the target service operation data through the target service data block chain.
3. The method according to any one of claims 1 or 2, wherein the service data block chain and/or the target service data block chain stores the data state of the user after the target service is operated by using a state tree and a relation tree; wherein the content of the first and second substances,
the state tree stores one or more of user data, entity data and integral data, and stores the data state of a user after the user operates a target service;
the relation tree stores one or more of user data-integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data, and stores the relation between data states after a user operates a target service.
4. The method according to claim 1, wherein the service data block chain determines a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway; the method specifically comprises the following steps:
the inter-chain gateway stores the industry identification of the target business operation data, the industry identification of the target business data block chain and the corresponding relation between the industry identification of the target business operation data and the industry identification of the target business data block chain; wherein the content of the first and second substances,
the industry mark comprises one or more of a evidence storage mark, a tracing mark, a finance mark, a tourism mark, a searching mark, a self-media mark, a research mark, an advertisement mark, an e-commerce mark, a community mark, a knowledge question and answer mark, a knowledge payment mark, a shared bicycle mark, a recruitment mark, a living service mark, a house renting mark, a voting mark, an online to offline mark, a social mark, a praise mark, an evaluation mark and a network appointment mark.
5. The method according to any one of claims 1 or 3, wherein the inter-chain system further comprises a plurality of integrated data blockchains, and the service data blockchains interface with the plurality of integrated data blockchains through inter-chain gateways and inter-chain relays; the method further comprises the following steps:
receiving target business operation data, wherein the target business operation data comprises operation of integral data;
determining a target integral data block chain corresponding to the target service operation data from a plurality of integral block chains through a cross-link gateway;
and calling integral operation data exchange service deployed on the target integral data block chain through cross-link relay so as to complete integral data exchange processing between the service data block chain and the target integral data block chain.
6. The method of claim 5, wherein the completing of the transaction of integrating data exchange between the traffic data block chain and the target integrating data block chain, thereafter, the method comprises:
the block chain node stores cross-chain integral data through user data-integral data; wherein the relation tree of the user data-integral data stores a tree root of a relation subtree, and values of leaf nodes in the relation subtree store integral data across chains; or storing the cross-chain integral data by the value of the leaf node in the user data-integral data relation tree in an array or hash table mode.
7. The method of claim 3, wherein the digital account of the user comprises one or more of user data, entity data, point data, user data-entity data, user data-user operations, and user data-message data;
after the message data in the user data-message data respond to the viewing operation of the user, the relation tree stores the tree root of a relation subtree, and the value of a leaf node in the relation subtree stores a point viewing reward or an entity viewing reward; wherein the message data comprises a point view reward or an entity view reward; or
And storing the point viewing reward or the entity viewing reward by the value of the leaf node of the relational tree in an array or a hash table mode.
8. The method of claim 3, wherein any one of user data, entity data, point data, user data-message data, user data-entity data, user data-user operation data, entity data-point data, and entity data-user data is stored in the database supporting attribute query in the form of data table, so as to facilitate user query according to attribute field in the data table; the data processing method comprises the following steps that one kind of data corresponds to one data table, any line in any one data table corresponds to one piece of data, and one kind of data comprises multiple lines of data; the database supporting attribute query comprises a relational database and a memory database; or
Any one of user data, entity data, integral data, user data-message data, user data-entity data, user data-user operation data, entity data-integral data and entity data-user data is stored in a KV database in a key value pair mode.
9. The device for realizing the cross-chain of the service data block chain is characterized in that the device is the service data block chain in a cross-chain system of the service data block chain; the inter-chain system of the service data block chain comprises the service data block chain, an inter-chain gateway, an inter-chain relay and a plurality of service data block chains, wherein the service data block chain is in butt joint with the plurality of service data block chains through the inter-chain gateway and the inter-chain relay;
the business data block link receives target business operation data, and the target business operation data is the operation of a user on the target business data;
determining a target service data block chain corresponding to the target service operation data from a plurality of service data block chains through a cross-chain gateway;
and calling a service operation data exchange service deployed on the target service data block chain through cross-link relay so as to complete data exchange processing between the service data block chain and the target service data block chain.
10. An electronic device, characterized in that the electronic device comprises a processor for performing any one of the claims 1-8.
CN202010271090.3A 2020-04-08 2020-04-08 Cross-link realization method and device for service data block chain Withdrawn CN111488615A (en)

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