CN110704451A - Ownership registration and evidence-providing method and device based on block chain - Google Patents

Ownership registration and evidence-providing method and device based on block chain Download PDF

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CN110704451A
CN110704451A CN201910974110.0A CN201910974110A CN110704451A CN 110704451 A CN110704451 A CN 110704451A CN 201910974110 A CN201910974110 A CN 201910974110A CN 110704451 A CN110704451 A CN 110704451A
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hash value
target work
block
ownership
transaction
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韩喆
蒋海滔
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Alipay Hangzhou Information Technology Co Ltd
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Alipay Hangzhou Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/22—Indexing; Data structures therefor; Storage structures
    • G06F16/2228—Indexing structures
    • G06F16/2255—Hash tables
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/245—Query processing
    • G06F16/2457—Query processing with adaptation to user needs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/245—Query processing
    • G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
    • G06F16/2471—Distributed queries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION 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
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/18—Legal services; Handling legal documents
    • G06Q50/184—Intellectual property management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees

Abstract

The embodiment of the specification provides an ownership registration method and an ownership demonstration method based on a block chain. The execution subject of the ownership registration method is a node corresponding to an ownership registration platform in a block chain network, and the method comprises the following steps: based on an ownership registration request for a target work sent by a user, a hash value corresponding to the target work is obtained, and then a transaction is issued in a blockchain, wherein the transaction comprises identification information of the user and the hash value, so that the transaction is recorded in a block of the blockchain. In this way, the timestamp, the user identification information and the hash value recorded in the block are generated by the block of the block, and the recording of a certain piece of work owned by a certain user at a certain time point is completed. In addition, in the provided ownership testifying method, the node corresponding to the notarization position in the block chain network can search the block recorded with the hash value according to the hash value of the target work to be testified, so that the notarization of the ownership of the target work is completed.

Description

Ownership registration and evidence-providing method and device based on block chain
Technical Field
One or more embodiments of the present disclosure relate to the field of blockchain technology, and in particular, to a method and an apparatus for performing ownership registration based on a blockchain, and a method and an apparatus for performing ownership verification based on a blockchain.
Background
Currently, the copyright field relates to a plurality of links, including copyright registration and management, infringement detection, notary evidence collection, judicial accommodation, litigation and the like. Each link in the links is relatively independent, and part of the links are particularly dependent on offline processing flows. In the process of maintaining rights, the circulation among different links is also involved, which leads to high cost and low efficiency of the compensation of copyright owners, is not beneficial to the cultivation of copyright consciousness to a certain extent and is not beneficial to arousing the creativity of everybody.
At the end, the reason for the complicated transaction flow in the copyright field is that it is difficult to ensure the reliability, security and availability of the copyright registration data and the like.
Therefore, it is desirable to provide an effective scheme that can ensure the reliability, security and usability of the copyright registration content, thereby simplifying the flow related to the copyright field and improving the processing efficiency of copyright transactions.
Disclosure of Invention
One or more embodiments of the present disclosure describe an ownership registration method and an ownership verification method based on a blockchain, which ensure that data related to ownership is trusted, secure, and high in availability, thereby greatly simplifying a copyright system process and improving the processing efficiency of related transactions.
According to a first aspect, a method of ownership registration based on a blockchain is provided. The method is performed by a first node in a blockchain network, the first node corresponding to an ownership registration platform. The method comprises the following steps: receiving an ownership registration request sent by a first user and aiming at a target work; acquiring a hash value corresponding to the target work based on the ownership registration request; issuing a first transaction in the blockchain network, wherein the first transaction at least comprises the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, and the first block comprises a block generation timestamp as an ownership registration time of the target work.
In one embodiment, the ownership registration request includes the target work, and the obtaining the hash value corresponding to the target work includes: acquiring the target work from the ownership registration request; and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
Further, in a specific embodiment, after obtaining the target work from the ownership registration request, the method further includes: and storing the target works into a cloud database.
In a specific embodiment, the transaction information further includes the target work.
In a specific embodiment, after the transaction information is published in the blockchain network, the method further includes: sending the hash value to the first user.
In one embodiment, the ownership registration request includes the hash value, and the obtaining the hash value corresponding to the target work includes: obtaining the hash value from the ownership registration request.
In one embodiment, after the obtaining the hash value corresponding to the target work, the method further includes: and sending the identification information of the first user and the data record of the hash value to a time service mechanism so that the time service mechanism can stamp the data record and store the data record and the timestamp in an associated manner.
In one embodiment, a second node corresponding to a notarization place is also included in the blockchain network.
In one embodiment, after issuing the first transaction in the blockchain network, the method further comprises: packaging the first transaction into the first block and adding the first block to the block chain.
In one embodiment, the target work includes text, images, videos, e-books, and music.
According to a second aspect, a method for ownership attestation based on a blockchain is provided. The method is performed by a second node in the blockchain network, the second node corresponding to a notarization office. The method comprises the following steps: obtaining a hash value of a target work to be demonstrated; searching a first block in a block chain, wherein a first transaction is recorded in the first block, and the first transaction comprises the hash value and identification information of a first user; acquiring the identification information for verifying that the first user is an owner of the target work; and acquiring a block generation time stamp included in the first block as the ownership registration time of the target work.
In one embodiment, the obtaining the hash value of the target work to be certified includes: obtaining the target work; and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
In one embodiment, the obtaining the hash value of the target work to be certified includes: receiving an ownership proving request which is initiated by a first user and aims at a target work, wherein the ownership proving request comprises the hash value.
According to a third aspect, a block chain based ownership registration apparatus is provided. The apparatus is integrated in a first node in a blockchain network, the first node corresponding to an ownership registration platform. The device includes: a registration request receiving unit configured to receive an ownership registration request for a target work issued by a first user; a hash value obtaining unit configured to obtain a hash value corresponding to the target work based on the ownership registration request; a transaction issuing unit configured to issue a first transaction in the blockchain network, where the first transaction includes at least the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, and the first block includes a block generation timestamp as an ownership registration time of the target work.
According to a fourth aspect, a ownership prover based on a blockchain is provided. The apparatus is implemented integrated in a second node in a blockchain network, the second node corresponding to a notarization office. The device includes: the system comprises a hash value acquisition unit, a verification unit and a verification unit, wherein the hash value acquisition unit is configured to acquire a hash value of a target work to be proved; the block searching unit is configured to search a first block in a block chain, wherein a first transaction is recorded in the first block, and the first transaction comprises the hash value and identification information of a first user; an identification obtaining unit configured to obtain the identification information for confirming that the first user is an owner of the target work; a time stamp obtaining unit configured to obtain a block generation time stamp included in the first block as an ownership registration time of the target work.
According to a fifth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed in a computer, causes the computer to perform the method of the first or second aspect.
According to a sixth aspect, there is provided a computing device comprising a memory having stored therein executable code, and a processor which, when executing the executable code, implements the method of the first or second aspect.
To sum up, in the ownership registration method provided in the embodiment of this specification, a node corresponding to an ownership registration platform in a blockchain network acquires a hash value corresponding to a target work based on an ownership registration request issued by a user for the target work, and issues a transaction in a blockchain, where the transaction includes identification information of the user and the hash value, so that the transaction is recorded in a block of the blockchain. In this way, the timestamp, the user identification information and the hash value recorded in the block are generated by the block of the block, and the recording of a certain piece of work owned by a certain user at a certain time point is completed. Moreover, the data recorded in the block has non-tamper property, and the reliability and security of the registered data can be ensured.
In the ownership testifying method provided in the embodiment of the present specification, a node in the blockchain network corresponding to a notarization place may find a block in which a hash value is recorded according to the hash value of a target work to be testified, and obtain user identification information corresponding to the hash value and a block generation timestamp from the block, thereby completing the notarization of the ownership of the target work. Therefore, the ownership registration data can be safely, efficiently and quickly acquired and notarized.
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 present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 illustrates an implementation scenario diagram according to one embodiment;
FIG. 2 illustrates a flow diagram of a block chain based ownership registration method according to one embodiment;
FIG. 3 illustrates a block diagram of a block in a blockchain according to one embodiment;
FIG. 4 is a block diagram illustrating a first block in a block chain according to one embodiment;
FIG. 5 illustrates a flow diagram of a blockchain based ownership attestation method in accordance with one embodiment;
FIG. 6 shows a schematic implementation scenario according to another embodiment;
fig. 7 shows a block diagram of a block chain based ownership registration apparatus according to an embodiment;
fig. 8 illustrates a block diagram of a ownership proving apparatus based on a blockchain according to one embodiment.
Detailed Description
The scheme provided by the specification is described below with reference to the accompanying drawings.
The major links involved in the copyright field include ownership registration and ownership proofing. The ownership registration means that the applicant applies for protection of the ownership of the work by registering the work in the copyright service platform, and after the registration is successful, the applicant becomes the copyright owner of the work. The title testification means that a testifier shows evidence that the testifier has copyright on a certain work, and the testifier needs to give work information to a notarization place for notarization, and then shows the notarization result of the notarization place as evidence. Wherein the notarization results include a verification that an entity (e.g., the prover) owns a work at a certain point in time.
It will be appreciated that ownership proofing relies heavily on ownership registration, while other links involved in the copyright domain, such as ownership trading, infringement detection, infringement litigation, etc., rely on ownership proofing. Therefore, it is critical to simplify the flow of ownership registration and ownership attestation, and to ensure the credibility of the data involved therein.
Based on this, the inventors propose an ownership registration method and an ownership demonstration method based on a block chain. It will be appreciated that the essence of the blockchain is a decentralized database in which the stored data is not tampered with. Therefore, ownership registration is performed based on the blockchain, and the registrant information and the corresponding registered works stored in the blockchain are also not falsifiable, so that the reliability of the copyright registration information can be ensured.
As known to those skilled in the art, a blockchain network includes a number of nodes, and communication between the nodes is possible. Fig. 1 illustrates an implementation scenario diagram according to an embodiment, in which a blockchain network is shown including nodes corresponding to an ownership registration platform and nodes corresponding to a notarization office.
In one embodiment, in conjunction with fig. 1, an original registrant uploads a work to an ownership registration platform and submits a registration request; the ownership registration platform stores the work and calculates the Hash value corresponding to the work; the ownership registration platform issues transactions including Hash values in a blockchain network so as to chain the transactions, wherein the included Hash values correspond to the chain; and then, when the notarization part needs to notarize the Hash value, the Hash value can be searched from the block chain maintained by the notarization part, thereby completing the notarization, and the notarization result can be submitted to a court. Therefore, the credibility of the registration content can be ensured, and meanwhile, the registration and notarization processes are simplified.
Next, implementation steps of the above-described ownership registration method and ownership demonstration method are described, respectively.
In particular, fig. 2 shows a flow diagram of a blockchain based ownership registration method according to an embodiment, the method being performed by a first node in a blockchain network, wherein the first node corresponds to an ownership registration platform, such as the ownership registration platform shown in fig. 1, and the first node may be implemented by any device, apparatus, platform, cluster of apparatuses having computing and processing capabilities.
It should be noted that "first" in the first node, and "first" in the following first user and first transaction, and "second" in the second node are only used for distinguishing the same kind of things, and do not have other limiting roles.
As shown in fig. 2, the method may include the steps of: step S210, receiving an ownership registration request aiming at a target work, which is sent by a first user; step S220, based on the ownership registration request, obtaining a hash value corresponding to the target work; step S230, issuing a first transaction in the blockchain network, where the first transaction includes at least the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, where the first block includes a block generation timestamp as an ownership registration time of the target work. The steps are as follows:
first, in step S210, an ownership registration request for a target work issued by a first user is received; in step S220, the hash value corresponding to the target work is acquired based on the ownership registration request.
In one embodiment, the target work may include text, images, videos, e-books, music, and so on. In one example, it may be an electronic contribution to a novel. In another example, it may be a video file of a movie.
In one embodiment, the target work is included in the ownership registration request received in step S210. Accordingly, in step S220, the target work may be acquired from the ownership registration request, and then the hash value corresponding to the target work is calculated by using a hash function.
The hash function is simply a function of compressing messages of any different lengths into message digests (or hash values) of the same length. In one example, the hash function may be SHA-256, and the hash value calculated by the hash function is 256 bits long for any input.
The hash function has the characteristics of determinacy, secrecy, capability of realizing quick calculation, tamper resistance and collision resistance. The determinism means that the same result can be obtained for the same input no matter how many times the hash function is used for calculation. Steganography refers to the fact that even if the hash value of an input is known, it is infeasible to infer the input from the hash value. The characteristic of being capable of realizing rapid calculation means that the output of the hash function can be calculated within a reasonable and acceptable time range aiming at the input character string, thereby avoiding influencing the system performance. Tamper resistance means that even with minor changes to any one input, the computation results obtained using the hash function will change very much. Crash resistance means that there is a unique output for most inputs.
Based on this, it can be considered that there is a one-to-one correspondence relationship between the target work and the calculated hash value. And the calculated hash value of the target work is used for being recorded in the block chain, so that the subsequent retrieval is facilitated. Compared with the method of directly searching the target work in the block chain, the method for searching the hash value can reduce the searching amount and greatly improve the searching speed.
In another embodiment, the hash value is included in the ownership registration request received in step S210. Accordingly, in step S220, the hash value may be acquired from the ownership registration request. It is to be understood that the hash function is now public and can be directly obtained and used by anyone. Therefore, in consideration of the user's intention to keep his or her work secret, etc., the user may be allowed to upload only the hash value of his or her work without uploading his or her work at the time of submitting the registration request.
As can be seen from the above, the ownership registration request may include the target work and/or the hash value of the target work. Further, in one embodiment, in the case where the target work is included, the target work may be automatically stored in the cloud database. In another embodiment, whether to store the target work may be selected by the user, specifically, if the user selects that the target work needs to be stored, the target work is uploaded by the first user and stored, and if the user selects not to store, the target work is discarded after the hash value of the target work is calculated.
Further, in one embodiment, the ownership registration request received in step S210 further includes identification information of the first user. It is to be appreciated that the identification information is used to uniquely identify the first user. In a specific embodiment, the identification information may be a mobile phone number or an identification number of the first user. In another specific embodiment, the identification information may be a string assigned by the ownership registration platform to the first user. In one example, the constituent elements of the character string may be numbers, letters, symbols, and the like. Accordingly, in step S220, the identification information of the first user may also be acquired from the copyright registration request.
Through the steps S210 and S220, the hash value corresponding to the target work and the identification information of the first user can be obtained. Next, in step S230, a first transaction is issued in the blockchain network.
It is to be understood that content in a blockchain network is typically distributed in the form of transactions. The from field, to field, and data field are typically included in the transaction content. At this time, the from field may be filled with the identification information of the first user, and the data field may be filled with the hash value of the target work. For the to field, in an application scenario where data is recorded by using a blockchain network, a call of an intelligent contract is usually involved, and at this time, an address of the relevant intelligent contract may be filled in the to field. Therefore, after the identification information of the first user, the calling address of the intelligent contract and the hash value of the target work are respectively filled in the from field, the to field and the data field, a first transaction can be formed, and then the first transaction is issued.
Based on this, the hash value is issued in the form of a transaction in this step. Specifically, a first transaction is issued in the blockchain network, and the first transaction at least includes the identification information of the first user and the hash value.
In one embodiment, the target work may also be included in the first transaction. In a specific embodiment, the target work is included in the ownership registration request received in the above step S210. Accordingly, in this step S230, the target work may be acquired from the ownership registration request, and the data field may be filled with the content of the target work as part of the content of the first transaction.
In addition, the transaction in the blockchain network is usually distributed in a broadcast manner, so that each node in the blockchain network can receive the transaction. Thus, after a first node issues a first transaction in the blockchain network, each of the other nodes in the blockchain network may receive the first transaction.
Furthermore, after receiving the first transaction, the node with accounting capability in the blockchain network may pack the first transaction into a block, and add the block to the blockchain, which may be referred to as a packed uplink.
Briefly, the procedure for packaging the uplink may be as follows. After receiving newly issued transactions including the first transaction, any accounting node puts the newly issued transactions into a local transaction pool; then, taking some transactions (including the first transaction) from the local transaction pool, recording the transactions on the alternative blocks, and writing the codes of the last block in the block chain maintained by the transactions as the parent hash of the alternative blocks into the alternative blocks; then inputting the content (including some recorded transaction and parent hash) and the random number in the candidate block into an encoding generator (hash function) to obtain the encoding of the candidate block, wherein the encoding includes continuous modification and trial of the random number until a lucky number is found, so that the encoding of the candidate block conforms to a predetermined rule, at this time, the encoding conforming to the rule and a current timestamp (as a generation timestamp of the candidate block) are written into the candidate block, and then, the candidate block is hung in the block chain until most other nodes except the certain node approve the candidate block, at this time, the candidate block can be considered as a block in the block chain.
Fig. 3 shows a block structure of a block chain according to an embodiment. The arbitrary block N includes a block header in which a block hash (parent hash) of a parent block (block N-1), a block generation timestamp and a random number (the above lucky number) of the block are recorded, and a block body in which a transaction list including a plurality of transactions is recorded.
Based on this, in one embodiment, the ownership registration platform itself serves as an accounting node, and the packaging uplink for the first transaction is realized. Accordingly, after step 230, the ownership registration platform packages the first transaction into a first block and adds the first block to the blockchain.
In another embodiment, after the first transaction is issued by the first node corresponding to the ownership registration platform, the first transaction is packed and linked by other accounting nodes in the blockchain network.
Further, in combination with the foregoing, the first chunk includes a chunk generation timestamp. Here, the block generation time stamp is used as the ownership registration time of the target work. Fig. 4 shows a schematic structure diagram of a first block according to an embodiment. In one example, as shown in fig. 4, the content recorded in the first block includes a parent hash, a block generation timestamp, a transaction list, and the like, and the transaction list of the first block includes a first transaction including identification information of the first user and a hash value of the target work.
As can be seen from the above, the first block includes a block generation timestamp, and the first transaction recorded in the first block includes the identification information of the first user and the hash value of the target work, corresponding to the ownership registration time. Thus, recording can be achieved by the first block: at a certain time (e.g., at the time of ownership registration), a certain entity (e.g., a first user) owns a certain work (e.g., a hash value or a target work corresponding to the hash value).
On the other hand, after step S230, or after the first uplink transaction, the method may further include: and sending the hash value to the first user so that the first user retains the hash value for subsequent ownership testimony, ownership transaction and the like.
In summary, in response to an ownership registration request initiated by a first user, a first transaction is issued in the blockchain network such that the first transaction is packed into a first block and hung onto the blockchain network. In this way, the integrity of the registered content is ensured while ensuring the reliability and security of the registered content by using the non-tamper property of the data in the block chain.
Further, when the notarization of ownership is needed, under the condition that the notarization part is one node in the block chain network, the notarization part can directly search related contents in the block chain maintained by the corresponding node thereof based on the target work or the hash value provided by the prover, so as to obtain a notarization result, which is used for the prover to perform the prover. Thus, the proof-proving process can be greatly simplified.
In particular, fig. 4 shows a flow diagram of a blockchain-based ownership attestation method according to one embodiment, the method being performed by a second node in a blockchain network, wherein the second node corresponds to a notarization office, such as the notarization office shown in fig. 1, and the second node may be implemented by any device, apparatus, platform, cluster of apparatuses with computing and processing capabilities.
As shown in fig. 5, the method may include the steps of: step S510, obtaining a hash value of a target work to be demonstrated; step S520, searching a first block in a block chain, wherein a first transaction is recorded in the first block, and the first transaction comprises the hash value and identification information of a first user; step S530, obtaining the identification information for confirming that the first user is the owner of the target work; step S540, acquiring a block generation timestamp included in the first block as an ownership registration time of the target work. The steps are as follows:
first, in step S510, a hash value of a target work to be certified is acquired.
In one embodiment, this step may include: and firstly, acquiring the target work, and then calculating to obtain the hash value corresponding to the target work by utilizing a hash function. For the calculation of the hash value of the target work, reference may be made to relevant contents in the foregoing embodiments, which are not described herein again.
In another embodiment, this step may include: receiving an ownership proving request which is initiated by a first user and aims at a target work, wherein the ownership proving request comprises the hash value.
The hash value of the target work to be demonstrated can be obtained. Then, in step S520, based on the hash value, a first chunk containing the hash value is located in the chunk chain. Specifically, a first transaction is recorded in the first block, and the first transaction includes the hash value and identification information of the first user.
After the first block is located, then in step S530, the identification information of the first user included in the first block is acquired for confirming that the first user is the owner of the target work. Also, in step S540, the tile generation time stamp included in the first tile is acquired as the ownership registration time of the target work. In addition, in another embodiment, the target work is included in the first transaction, so the target work can also be obtained from the first transaction recorded in the first block.
Therefore, the notarization department can notarize the acquired hash value, the ownership registration time searched from the block chain according to the hash value and the identification information of the first user. And then giving the notarization result to the first user, or submitting the notarization result to a court and the like.
In conclusion, the notarization department is brought into the block chain network, so that when the notarization department performs notarization, the required data can be directly inquired from the block chain maintained by the corresponding node, thereby quickly, efficiently and reliably completing the notarization, greatly simplifying the notarization process and simultaneously ensuring the credibility of the notarization result.
According to another embodiment, consider the case where the notary is not included in the blockchain network, where the notary is not a node in the blockchain network and thus cannot query for data in the blockchain network. Fig. 6 shows a schematic diagram of an implementation scenario according to another embodiment, where the blockchain network does not include nodes corresponding to notarization places.
In this regard, as an embodiment before the public certificate department links the chain, on the basis of the aforementioned ownership registration method, after step S220, the method may further include: and sending the identification information of the first user and the data record of the hash value to a time service mechanism so that the time service mechanism can stamp the data record and store the data record and the timestamp in an associated manner. It should be noted that, the Time service is trusted, for example, a united trust Time Stamp Authority (united trust Time Stamp Authority).
Based on this, when the notarization is needed, according to the obtained hash value (specifically, the hash value may be provided by the first user or calculated according to the target work provided by the first user), the data record including the hash value is queried in the time service mechanism, the identification information of the first user included in the data record is obtained, and meanwhile, the timestamp corresponding to the data record is queried as the copyright registration time of the target work. Thus, notarization of ownership of the target works can be completed.
It is to be understood that this is an intermediate transition scheme, and after chains are uplinked at notarization, the first chunk whose generation timestamp is still valid can be located in the chunk chain at the notarization stage according to the hash value.
According to an embodiment of another aspect, there is provided an ownership registration apparatus integrated in a first node in a blockchain network, the first node corresponding to an ownership registration platform. The first node may be embodied as any computing, processing capable device, platform, or cluster of devices. Fig. 7 is a block diagram illustrating an ownership registration apparatus based on a block chain according to an embodiment, and as shown in fig. 7, the ownership registration apparatus 700 includes:
a registration request receiving unit 710 configured to receive an ownership registration request issued by a first user for a target work; a hash value obtaining unit 720, configured to obtain a hash value corresponding to the target work based on the ownership registration request; a transaction issuing unit 730 configured to issue a first transaction in the blockchain network, where the first transaction includes at least the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, and the first block includes a block generation timestamp as an ownership registration time of the target work.
In an embodiment, the ownership registration request includes the target work, and the hash value obtaining unit 720 is specifically configured to: acquiring the target work from the ownership registration request; and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
Further, in a specific embodiment, the apparatus 700 further comprises: a work storage unit 710 configured to store the target work in a cloud database.
In a specific embodiment, the transaction information further includes the target work.
In a specific embodiment, the apparatus 700 further comprises: a hash value sending unit 740 configured to send the hash value to the first user.
In an embodiment, the ownership registration request includes the hash value, and the hash value obtaining unit 720 is specifically configured to: obtaining the hash value from the ownership registration request.
In one embodiment, the apparatus 700 further comprises: a data record sending unit 750, configured to send the identification information of the first user and the data record of the hash value to a time service mechanism, so that the time service mechanism stamps a time stamp on the data record, and stores the data record and the time stamp in an associated manner.
In one embodiment, a second node corresponding to a notarization place is also included in the blockchain network.
In one embodiment, the apparatus 700 further comprises: an uplink transaction unit 760 configured to pack the first transaction into the first block and add the first block to the block chain.
In one embodiment, the target work includes text, images, videos, e-books, and music.
In summary, by using the ownership registration apparatus, in response to an ownership registration request initiated by a first user, a first transaction is issued in the blockchain network, so that the first transaction is packed into a first block and hung on the blockchain network. In this way, the integrity of the registered content is ensured while ensuring the reliability and security of the registered content by using the non-tamper property of the data in the block chain.
According to an embodiment of yet another aspect, there is provided an ownership attestation apparatus integrated at a second node in a blockchain network, the second node corresponding to a notarization office. The second node may be embodied as any computing, processing capable device, platform, or cluster of devices. Fig. 8 is a block diagram illustrating an ownership proving apparatus based on a block chain according to an embodiment, and as shown in fig. 8, the ownership registering apparatus 800 includes:
a hash value obtaining unit 810 configured to obtain a hash value of a target work to be demoted; a block searching unit 820 configured to search a first block in a block chain, where the first block records a first transaction, and the first transaction includes the hash value and identification information of a first user; an identification obtaining unit 830, configured to obtain the identification information, for confirming that the first user is an owner of the target work; a time stamp obtaining unit 840 configured to obtain a block generation time stamp included in the first block as an ownership registration time of the target work.
In an embodiment, the hash value obtaining unit 810 is specifically configured to: obtaining the target work; and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
In an embodiment, the hash value obtaining unit 810 is specifically configured to: and receiving an ownership proving request which is initiated by the first user and aims at the target work, wherein the ownership proving request comprises the hash value.
In conclusion, the notarization department is brought into the block chain network, so that when the notarization department performs notarization, the required data can be directly inquired from the block chain maintained by the corresponding node, thereby quickly, efficiently and reliably completing the notarization, greatly simplifying the notarization process and simultaneously ensuring the credibility of the notarization result.
According to an embodiment of another aspect, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed in a computer, causes the computer to perform the method described in connection with fig. 2 or 5.
According to an embodiment of yet another aspect, there is also provided a computing device comprising a memory and a processor, the memory having stored therein executable code, the processor, when executing the executable code, implementing the method described in connection with fig. 2 or fig. 5.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments 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 on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims (28)

1. A blockchain based ownership registration method, wherein the method is performed by a first node in a blockchain network, the first node corresponding to an ownership registration platform, the method comprising:
receiving an ownership registration request sent by a first user and aiming at a target work;
acquiring a hash value corresponding to the target work based on the ownership registration request;
issuing a first transaction in the blockchain network, wherein the first transaction at least comprises the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, and the first block comprises a block generation timestamp as an ownership registration time of the target work.
2. The method of claim 1, wherein the ownership registration request includes the target work, and the obtaining the hash value corresponding to the target work includes:
acquiring the target work from the ownership registration request;
and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
3. The method of claim 2, wherein after acquiring the target work from the ownership registration request, the method further comprises:
and storing the target works into a cloud database.
4. The method of claim 2, wherein the target work is further included in the transaction information.
5. The method of claim 2, wherein after publishing transaction information in the blockchain network, the method further comprises:
sending the hash value to the first user.
6. The method of claim 1, wherein the ownership registration request includes the hash value, and the obtaining the hash value corresponding to the target work includes:
obtaining the hash value from the ownership registration request.
7. The method of claim 1, wherein after the obtaining the hash value corresponding to the target work, the method further comprises:
and sending the identification information of the first user and the data record of the hash value to a time service mechanism so that the time service mechanism can stamp the data record and store the data record and the timestamp in an associated manner.
8. The method of claim 1, wherein the blockchain network further comprises a second node corresponding to a notarization office.
9. The method of claim 1, wherein after issuing the first transaction in the blockchain network, the method further comprises:
packaging the first transaction into the first block and adding the first block to the block chain.
10. The method of claim 1, wherein the target work comprises text, images, videos, e-books, and music.
11. A blockchain based ownership attestation method, wherein the method is performed by a second node in a blockchain network, the second node corresponding to a notarization office, the method comprising:
obtaining a hash value of a target work to be demonstrated;
searching a first block in a block chain, wherein a first transaction is recorded in the first block, and the first transaction comprises the hash value and identification information of a first user;
acquiring the identification information for verifying that the first user is an owner of the target work;
and acquiring a block generation time stamp included in the first block as the ownership registration time of the target work.
12. The method of claim 11, wherein the obtaining a hash value of a target work to be certified comprises:
obtaining the target work;
and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
13. The method of claim 11, wherein the obtaining a hash value of a target work to be certified comprises:
and receiving an ownership proving request which is initiated by the first user and aims at the target work, wherein the ownership proving request comprises the hash value.
14. An apparatus for blockchain based ownership registration, wherein the apparatus is integrated into a first node in a blockchain network, the first node corresponding to an ownership registration platform, the apparatus comprising:
a registration request receiving unit configured to receive an ownership registration request for a target work issued by a first user;
a hash value obtaining unit configured to obtain a hash value corresponding to the target work based on the ownership registration request;
a transaction issuing unit configured to issue a first transaction in the blockchain network, where the first transaction includes at least the identification information of the first user and the hash value, so that the first transaction is recorded in a first block of the blockchain, and the first block includes a block generation timestamp as an ownership registration time of the target work.
15. The apparatus according to claim 14, wherein the ownership registration request includes the target work, and the hash value obtaining unit is specifically configured to:
acquiring the target work from the ownership registration request;
and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
16. The apparatus of claim 15, wherein the apparatus further comprises:
and the work storage unit is configured to store the target work into a cloud database.
17. The apparatus of claim 15, wherein the target work is further included in the transaction information.
18. The apparatus of claim 15, wherein the apparatus further comprises:
a hash value sending unit configured to send the hash value to the first user.
19. The apparatus according to claim 14, wherein the ownership registration request includes the hash value, and the hash value obtaining unit is specifically configured to:
obtaining the hash value from the ownership registration request.
20. The apparatus of claim 14, wherein the apparatus further comprises:
and the data record sending unit is configured to send the identification information of the first user and the data record of the hash value to a time service mechanism, so that the time service mechanism can stamp the data record and store the data record and the time stamp in an associated manner.
21. The apparatus of claim 14, wherein the blockchain network further comprises a second node corresponding to a notarization office.
22. The apparatus of claim 14, wherein the apparatus further comprises:
a trade uplink unit configured to pack the first trade into the first block and add the first block to the block chain.
23. The apparatus of claim 14, wherein the target work comprises text, images, video, e-books, and music.
24. An apparatus for ownership attestation based on blockchain, wherein the apparatus is integrated to execute at a second node in a blockchain network, the second node corresponding to a notarization department, the apparatus comprising:
the system comprises a hash value acquisition unit, a verification unit and a verification unit, wherein the hash value acquisition unit is configured to acquire a hash value of a target work to be proved;
the block searching unit is configured to search a first block in a block chain, wherein a first transaction is recorded in the first block, and the first transaction comprises the hash value and identification information of a first user;
an identification obtaining unit configured to obtain the identification information for confirming that the first user is an owner of the target work;
a time stamp obtaining unit configured to obtain a block generation time stamp included in the first block as an ownership registration time of the target work.
25. The apparatus according to claim 24, wherein the hash value obtaining unit is specifically configured to:
obtaining the target work;
and calculating to obtain the hash value corresponding to the target work by utilizing a hash function.
26. The apparatus according to claim 24, wherein the hash value obtaining unit is specifically configured to:
and receiving an ownership proving request which is initiated by the first user and aims at the target work, wherein the ownership proving request comprises the hash value.
27. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed in a computer, causes the computer to perform the method of any of claims 1-13.
28. A computing device comprising a memory and a processor, wherein the memory has stored therein executable code that when executed by the processor implements the method of any of claims 1-13.
CN201910974110.0A 2019-10-14 2019-10-14 Ownership registration and evidence-providing method and device based on block chain Pending CN110704451A (en)

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