Digital asset infringement judgment method and device based on block chain
Technical Field
The invention belongs to the field of block chains, and particularly relates to a digital asset infringement judgment method and device based on a block chain.
Background
The development and use of the internet has facilitated the trading of digital assets (e.g., music, video, etc.), but has also exposed them to the risk of infringement. For example, for a copyright party of some music and movies, if their music or movies are sold to the buyer through the data transaction platform, the buyer of these digital assets may transmit the purchased music or movie files to the network for free sharing or sale to others, thereby causing huge economic loss to the copyright party.
Since the digital assets are easy to copy and are very easy to spread on the internet, it is difficult to find the infringement of the digital assets of the copyright party in time in the mass data of the internet, and even if the digital assets of the copyright party are found in time, because the internet has certain anonymity, it is difficult to determine the identity of the infringer and to follow up the legal responsibility.
Disclosure of Invention
In view of this, embodiments of the present invention provide a block chain-based digital asset infringement determination method and apparatus to determine whether an infringement behavior exists in a buyer purchasing a digital asset, so as to discover that the digital asset of a copyright party is infringed in time, and accurately determine the identity of an infringer when the infringement is discovered. The technical scheme of the embodiment of the invention is as follows:
in a first aspect, a block chain-based digital asset infringement determination method is provided, where the method includes:
generating a digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser, and writing the information of the digital watermark into a block chain;
acquiring a digital watermark to be matched according to the digital asset to be tested uploaded by a user, wherein the user is different from the purchaser;
and matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain so as to judge whether the purchaser corresponding to the digital watermark has an infringement behavior.
With reference to the first aspect, in a first possible implementation manner, before the step of generating a digital watermark corresponding to a digital asset according to a digital asset successfully purchased by a purchaser and an identity of the purchaser, the method further includes:
verifying whether the buyer meets a transaction condition preset by a copyright party of the digital asset according to an intelligent contract preset by the block chain;
paying the token used by the purchaser to purchase the digital asset to the copyright party if the verification is passed;
if the verification fails, a transaction rejection indication is output.
With reference to the first aspect, in a second possible implementation manner, the generating a digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser includes:
extracting feature information of the digital assets; and
creating the new account associated with the purchaser;
and generating the digital watermark according to the characteristic information and the new account.
With reference to the first aspect, in a third possible implementation manner, the writing information of the digital watermark into a block chain includes:
performing hash operation on the digital watermark to obtain a hash value of the digital watermark;
and writing the hash value serving as the information of the digital watermark into the block chain.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain to determine whether the buyer corresponding to the digital watermark has an infringement behavior includes:
performing hash operation on the digital watermark to be matched to obtain a hash value of the digital watermark to be matched;
matching the hash value of the digital watermark to be matched with the hash value of the digital watermark in the block chain;
if the matching is successful, judging that the digital asset to be detected is an infringing digital asset, and judging that the buyer corresponding to the digital watermark has an infringing behavior;
and if the matching fails, judging that the digital assets to be detected are non-infringement digital assets.
With reference to the second possible implementation manner of the first aspect, in a fifth possible implementation manner, after the step of creating the new account associated with the buyer, the method further includes:
transferring the anti-infringement cost provided by the copyright party of the digital asset in advance into the new account, writing the public key of the new account into the block chain, simultaneously encrypting the private key of the new account by using a secret key to generate a private key ciphertext, storing the private key ciphertext in the block chain, and storing the secret key offline.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the method further includes:
and when the digital watermark is judged to have infringement behavior, the private key of the new account is reversely solved according to the private key ciphertext in the block chain and the key stored offline, and the anti-infringement cost in the new account is transferred to the user according to the private key.
With reference to the first aspect, in a seventh possible implementation manner, the method further includes:
and when the digital watermark is judged to have infringement behavior, recording infringement information of the purchaser in the block chain, and sending the infringement information to the copyright party.
In a second aspect, an apparatus for determining digital asset infringement based on block chains is provided, the apparatus comprising:
the generating module is used for generating a digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser;
a writing module, configured to write information of the digital watermark into a block chain;
the acquisition module is used for acquiring the digital watermark to be matched according to the digital asset to be tested uploaded by a user, wherein the user is different from the buyer;
and the matching judgment module is used for matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain so as to judge whether the purchaser corresponding to the digital watermark has infringement behavior.
With reference to the second aspect, in a first possible implementation manner, the apparatus further includes:
the verification module is used for verifying whether the buyer meets the transaction condition preset by the copyright party of the digital asset according to the intelligent contract preset by the block chain;
a payment module for paying the token used by the purchaser to purchase the digital asset to the copyright party if the verification module verifies that the digital asset is passed;
and the indication output module is used for outputting a transaction rejection indication if the verification module fails to verify.
With reference to the second aspect, in a second possible implementation manner, the identity is identified as a new account of the purchaser, and the generating module includes:
the extraction submodule is used for extracting the characteristic information of the digital assets;
a create sub-module for creating the new account associated with the purchaser;
and the generating submodule is used for generating the digital watermark according to the characteristic information and the new account.
With reference to the second aspect, in a third possible implementation manner, the writing module includes:
the first operation obtaining sub-module is used for carrying out hash operation on the digital watermark to obtain a hash value of the digital watermark;
and the writing sub-module is used for writing the hash value serving as the information of the digital watermark into the block chain.
With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the matching judgment module includes:
the second operation obtaining sub-module is used for carrying out hash operation on the digital watermark to be matched to obtain a hash value of the digital watermark to be matched;
the matching submodule is used for matching the hash value of the digital watermark to be matched with the hash value of the digital watermark in the block chain;
and the judging submodule is used for judging that the digital asset to be detected is an infringement digital asset if the matching submodule is matched successfully, judging that the buyer corresponding to the digital watermark has an infringement behavior, and judging that the digital asset to be detected is a non-infringement digital asset if the matching submodule is matched unsuccessfully.
With reference to the second possible implementation manner of the second aspect, in a fifth possible implementation manner, the apparatus further includes a first transfer-in module,
the first transfer-in module is used for transferring the anti-infringement cost provided by the copyright party of the digital asset in advance into the new account;
the writing module is further configured to write the public key of the new account into the block chain, encrypt the private key of the new account with a key to generate a private key ciphertext, store the private key ciphertext in the block chain, and store the key offline.
With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the apparatus further includes:
the reverse decoding module is used for reversely decoding the private key of the new account according to the private key ciphertext in the block chain and the key stored offline when the matching judgment module judges that the buyer corresponding to the digital watermark has an infringement behavior;
and the second transfer module is used for transferring the anti-infringement cost in the new account to the user according to the private key.
With reference to the second aspect, in a seventh possible implementation manner, the apparatus further includes:
the recording module is used for recording the infringement information of the purchaser in the block chain when the matching judgment module judges that the purchaser corresponding to the digital watermark has infringement behavior;
and the sending module is used for sending the infringement information to the copyright side.
The embodiment of the invention provides a block chain-based digital asset infringement judgment method and a block chain-based digital asset infringement judgment device, wherein the block chain-based digital asset infringement judgment method comprises the following steps: generating a digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser, writing the information of the digital watermark into a block chain, and acquiring the digital watermark to be matched according to the digital asset to be tested uploaded by a user, wherein the user is different from the purchaser; and matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain so as to judge whether the buyer corresponding to the digital watermark has infringement behavior. The digital watermark is generated according to the digital asset and the identity identification of the purchaser, the digital watermark corresponds to the digital asset, the information of the digital watermark is written into the block chain with the characteristics of non-falsification and traceability, and the information of the digital watermark of the digital asset to be detected uploaded by the user is matched with the information of the digital watermark in the block chain, so that whether the digital asset corresponding to the digital watermark is an infringement digital asset or not can be reliably judged, whether the purchaser of the digital asset has infringement or not can be judged, the infringement of the digital asset of the copyright party can be timely found, the purchaser serving as an infringement person can be accurately determined when the infringement is found, and the copyright of the digital asset can be protected and the infringement of the digital asset can be struck.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be 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 is a flow diagram of one embodiment of a blockchain-based digital asset infringement determination method of the present invention;
FIG. 2 is a flow diagram of another embodiment of a blockchain-based digital asset infringement determination method of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the digital asset infringement determination device based on the block chain according to the invention.
Detailed Description
In order to make the objects, technical solutions and advantages 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 accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 block chain-based digital asset infringement judgment method provided by the embodiment of the invention realizes copyright protection on digital assets by using the intelligent contract and the digital token of the block chain based on the characteristics of non-tampering, traceability, intelligent contract and built-in token of the block chain, so that a copyright party can find the infringement of the digital assets in time, and accurately determine the identity of an infringer when the infringement is found, and attack on the infringement behavior of the digital assets.
The execution main body of the block chain-based digital asset infringement judgment method provided by the embodiment of the invention can be a server, the server can be a single server, a server cluster or a computer cluster and the like, the server is provided with a digital asset transaction system and a corresponding digital asset transaction platform, the digital transaction system is a system combining a block chain, a Web system with a B/S framework and a centralized database, and the digital transaction system deploys an intelligent contract for digital asset transaction on the block chain supporting the intelligent contract.
The block chain in the embodiment of the invention is a chain data structure formed by combining data blocks in a sequential connection mode according to a time sequence, and is a distributed ledger which is guaranteed to be not falsifiable and counterfeitable in a cryptographic mode. Broadly speaking, the blockchain technique is a completely new distributed infrastructure and computing paradigm that utilizes blockchain data structures to verify and store data, utilizes distributed node consensus algorithms to generate and update data, cryptographically secure data transmission and access, and utilizes intelligent contracts composed of automated script code to program and manipulate data.
The intelligent contract in the embodiment of the invention is a section of code stored in a blockchain (or an intelligent contract program is deployed to each node of the blockchain), the section of code specifies the execution condition of the intelligent contract and the service processing logic, and when the execution condition of the intelligent contract is triggered, the intelligent contract executes the corresponding service processing logic.
The digital assets described in the embodiments of the present invention include, but are not limited to, images, data, videos, animations, e-books, etc., and the value of a digital asset may be defined by a digital encryption token embedded in a blockchain, which may be a bitcoin, an ethernet coin, or other digital encryption tokens in the blockchain.
Example one
The embodiment of the invention provides a block chain-based digital asset infringement judgment method, which is shown in figure 1 and comprises the following steps:
101. and generating a digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser, and writing the information of the digital watermark into the block chain.
Specifically, the generating of the digital watermark corresponding to the digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser may include:
extracting the characteristic information of the digital assets; and
creating a new account associated with the purchaser;
and generating the digital watermark according to the characteristic information and the new account.
The process of writing the information of the digital watermark into the block chain may include:
carrying out Hash operation on the digital watermark to obtain a Hash value of the digital watermark;
and writing the hash value serving as the information of the digital watermark into the block chain.
In addition, in addition to writing the hash value of the digital watermark into the block chain as the information of the digital watermark, other data capable of uniquely identifying the digital watermark may be written into the block chain as the information of the digital watermark, where the data may be identification data extracted from the digital watermark or may be other data.
102. And acquiring the digital watermark to be matched according to the digital assets to be tested uploaded by the user, wherein the user is different from the purchaser.
103. And matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain so as to judge whether the buyer corresponding to the digital watermark has infringement behavior.
Carrying out Hash operation on the digital watermark to be matched to obtain a Hash value of the digital watermark to be matched;
matching the hash value of the digital watermark to be matched with the hash value of the digital watermark in the block chain;
if the matching is successful, determining that the digital asset to be detected is an infringing digital asset, and determining that the buyer corresponding to the digital watermark has an infringing behavior;
and if the matching fails, judging that the digital assets to be detected are non-infringement digital assets.
Further, before step 101, the method further comprises:
verifying whether a purchaser meets a transaction condition preset by a copyright party of the digital assets according to an intelligent contract preset by a block chain;
paying the token used by the purchaser for purchasing the digital asset to the copyright party if the verification is passed;
if the verification fails, a transaction rejection indication is output.
Further, after the step of creating a new account associated with the purchaser, the method further comprises:
transferring the anti-infringement cost provided by the copyright side of the digital asset in advance into a new account, writing the public key of the new account into the block chain, simultaneously encrypting the private key of the new account by using the key to generate a private key ciphertext, storing the private key ciphertext in the block chain, and storing the key offline.
Further, the method further comprises:
and when the digital watermark is judged to have infringement behavior, the private key of the new account is reversely solved according to the private key ciphertext in the block chain and the key stored offline, and the infringement charge in the new account is transferred to the user according to the private key.
Further, the method further comprises:
and when the digital watermark is judged to have infringement behavior, recording infringement information of the purchaser in the block chain, and sending the infringement information to the copyright party.
The embodiment of the invention provides a block chain-based digital asset infringement judgment method, wherein a digital watermark is generated according to the digital asset and the identity identification of a purchaser, the digital watermark corresponds to the digital asset, the information of the digital watermark is written into a block chain with non-falsification and traceable characteristics, and the information of the digital watermark of a digital asset to be detected uploaded by a user is matched with the information of the digital watermark in the block chain, so that whether the digital asset corresponding to the digital watermark is an infringement digital asset or not can be reliably judged, whether the purchaser of the digital asset has infringement behavior or not can be judged, the infringement of the digital asset of a copyright party can be timely found, and when the infringement is found, the purchaser serving as an infringement person can be accurately determined, and the copyright of the digital asset can be protected and the digital infringement can be attacked.
Example two
An embodiment of the present invention provides a block chain-based digital asset infringement determination method, which is shown in fig. 2 and includes:
201. and verifying whether the buyer meets the transaction condition preset by the copyright side of the digital asset according to the intelligent contract preset by the block chain, if the verification is passed, executing the step 202, and if the verification is not passed, executing the step 203.
The digital assets may include at least one of video data, audio data, image data, and text data.
Specifically, the process may include:
a. and receiving the digital assets issued by the registered copyright parties and the trading strategies of the digital assets preset by the copyright parties.
The digital asset can be issued to the digital asset transaction platform by a copyright party through a terminal device, and the terminal device can be understood as a device with a data communication function, such as a mobile terminal, a PC terminal, and the like. After the digital assets are successfully released, the buyer with purchasing intention can check the information of abstract, brief introduction and partial sample of the digital assets available for transaction on the digital asset transaction platform.
The trading strategy can comprise trading conditions, the trading conditions can comprise selling price, trading mode and copyright description information, the selling price can be a unit of money which is a built-in digital token of a block chain, the trading mode can comprise charging according to times, charging according to data size, delivery of digital assets and charging time, and the copyright description information comprises copyright requirements; further, the trading strategy may also include anti-infringement fees that the copyright party is willing to offer for the digital assets that they publish, which are paid by the copyright party through the built-in digital tokens of the blockchain.
b. A purchase request initiated by a purchaser for a digital asset issued by a copyright party is received and forwarded to the smart contract.
The purchase request may be generated by a purchaser starting a digital asset purchase process of the data transaction platform through a terminal device, and the purchase request carries identity information of the purchaser, where the identity information may be a registered account name registered by the purchaser on the digital asset transaction system, or a mobile phone number, a bank account number, or a payment account name of the purchaser. When the purchaser wants to purchase the digital asset issued by the copyright party, a purchase request for the digital asset to be purchased may be initiated, and the digital asset transaction system transmits the purchase request to an intelligent contract supporting the digital asset transaction after receiving the purchase request.
c. And verifying whether the buyer meets the transaction conditions preset by the copyright side of the digital assets according to the intelligent contract.
Specifically, according to the identity information of the purchaser, the amount of the built-in token of the purchaser in the block chain is obtained, whether the amount exceeds the selling price of the digital assets in the transaction condition is judged, if yes, the verification is passed, and if not, the verification is not passed.
202. The token used by the purchaser to purchase the digital asset is paid to the copyright party.
Specifically, the purchaser pays a copyright to the built-in digital token of the blockchain according to the selling price of the digital asset to purchase the digital asset.
It should be noted that the payment process of the buyer is performed according to the charging time in the transaction mode, and the charging time may be the time required for completing the payment before the buyer successfully purchases the digital asset.
203. And outputting a transaction refusal indication.
Specifically, the embodiment of the present invention does not limit the specific output process.
It should be noted that steps 201 to 203 are processes for implementing successful purchase of the digital asset issued by the copyright owner by the purchaser, and the processes may be implemented in other ways besides the above-mentioned steps, and the embodiment of the present invention is not limited in specific ways.
It should be noted that steps 201 to 203 are optional steps, and if the purchaser has purchased the digital asset issued by the copyright owner, step 204 is directly performed without performing steps 201 to 203.
204. Characteristic information of digital assets successfully purchased by a purchaser is extracted.
Specifically, the process may include:
preprocessing the digital assets;
and extracting the characteristic information of the digital assets from the preprocessed digital assets.
The process of preprocessing the digital assets can be realized by adopting a proper preprocessing technology in the prior art, and irrelevant information such as interference, noise and the like in the digital assets can be eliminated by preprocessing the digital assets.
When the digital assets are video data, extracting video features from the preprocessed video data; when the digital assets are audio data, extracting audio features from the preprocessed audio data; when the digital assets are image data, extracting image characteristics from the preprocessed image data; and when the digital assets are text data, extracting text features from the preprocessed text data. It can be understood that, according to actual needs, those skilled in the art may select an appropriate extraction means in the prior art to extract the feature information of the digital asset.
The embodiment of the present invention does not limit the specific extraction process.
205. A new account associated with the purchaser is created.
Specifically, the process may include:
initializing a new account for the purchaser according to the intelligent contract, and associating the new account of the purchaser with the purchaser, wherein the new account is different from a registered account which is registered by the purchaser in advance; and
a private key for the new account is created and a public key corresponding to the private key is generated.
The public key of the new account may be associated with identity information of the purchaser, where the identity information may be a registered account name, a mobile phone number of the purchaser, a bank account number, or a payment account name, which is registered by the purchaser on the digital asset transaction system, and the identity information may be only required to uniquely identify the purchaser.
In the embodiment of the invention, the public key of the new account is associated with the buyer, so that the identity of the buyer can be determined through the public key of the new account.
It should be noted that, in the embodiment of the present invention, the execution sequence of step 204 and step 205 is not specifically limited, and in practical applications, step 204 and step 205 are executed simultaneously, which is a preferable scheme to improve the generation efficiency of the digital watermark.
206. Transferring the anti-infringement cost provided by the copyright side of the digital asset in advance into a new account, writing the public key of the new account into the block chain, simultaneously encrypting the private key of the new account by using the key to generate a private key ciphertext, storing the private key ciphertext in the block chain, and storing the key offline.
Wherein the anti-infringement fee is used as a reward for the act of infringing on the digital assets, so as to attract the users of the digital assets to detect the digital assets to identify whether the digital assets held by the users infringe or not.
Specifically, transferring the anti-infringement cost to a new account according to an intelligent contract; and performing data conversion on the public key of the new account according to a preset conversion format, writing the data into each node of the block chain, simultaneously encrypting the private key of the new account by using the key to generate a private key ciphertext, storing the private key ciphertext in each node of the block chain, and storing the key offline.
In the embodiment of the invention, the keys are not stored in the blockchain in an off-line manner, but are properly stored through the digital asset transaction platform, so that the keys are prevented from being directly exposed due to the transparency property of the blockchain.
The invention does not limit the specific writing process and the encryption process.
In the embodiment of the invention, the anti-infringement cost provided by the copyright side of the digital asset in advance is transferred into the new account, the public key of the new account is written into the block chain, and the private key of the new account is encrypted and stored, so that the user attracting the digital asset to detect the digital asset to identify whether the digital asset infringes or not under the benefit stimulation of the anti-infringement cost, and the digital asset infringement or not can be found quickly in time; in addition, the public key of the new account associated with the purchaser is written into the block chain, and the block chain is not falsifiable and traceable, so that the purchaser can be easily traced by inquiring the public key of the new account.
It should be noted that step 206 is an optional step.
207. And generating a digital watermark corresponding to the digital asset according to the characteristic information and the public key of the new account.
Specifically, according to the characteristic information and the public key of the new account, a preset digital watermark API (Application Programming Interface) is called through an intelligent contract to generate a digital watermark corresponding to the digital asset.
The embodiment of the present invention does not limit the specific generation process.
In the embodiment of the invention, the digital watermark of the digital asset is generated, so that whether the digital asset is infringed or not can be reliably detected according to the digital watermark for copyright protection in the following, and further, the infringement behavior of a buyer can be effectively traced.
It should be noted that steps 204 to 207 are processes for generating a digital watermark corresponding to a digital asset according to a digital asset successfully purchased by a buyer and an identity of the buyer, and the processes may be implemented in other ways besides the above-mentioned steps, and the specific way of implementing the present invention is not limited.
The digital watermark embedded in the digital asset can be embedded into the digital asset, and the digital asset embedded with the digital watermark is issued to the purchaser, so that the digital watermark embedded in the digital asset is difficult to remove, modify or forge after the purchaser purchases the digital asset by utilizing the characteristics of concealment, robustness and tamper resistance and modification of the digital watermark, and therefore the piracy, illegal sale or transmission of the digital asset by the purchaser is subjectively restrained, and the infringement risk of the digital asset is reduced.
208. And carrying out Hash operation on the digital watermark to obtain a Hash value of the digital watermark.
Specifically, the hash operation is performed on the digital watermark according to a preset hash algorithm to obtain a hash value of the digital watermark. The preset hash algorithm comprises any one of an MD5 algorithm, an SHA-1 algorithm, an SHA-2 algorithm, an SHA-3 algorithm and an SHA algorithm. The embodiment of the present invention does not limit the specific hash algorithm.
209. And writing the hash value serving as the information of the digital watermark into the block chain.
Specifically, according to the intelligent contract, the hash value of the digital watermark is written into the block chain.
In the embodiment of the invention, the hash value of the digital watermark is written into the block chain, so that the hash value of the digital watermark acquired from the digital asset successfully purchased by the purchaser can be permanently stored in the block chain as transaction information of the digital asset. And because the block chain is not capable of being tampered and traced, the hash value of the digital watermark is completely recorded and is not capable of being changed, so that whether the purchaser of the digital asset infringes or not can be judged through the digital watermark in the block chain in the following, and the reliability and the authenticity of the digital asset infringement judgment are ensured.
It should be noted that steps 208 to 209 are processes for writing information of a digital watermark into a block chain, and the processes may be implemented in other ways besides the above-mentioned ways, and the specific way is not limited in the embodiment of the present invention.
In addition, in addition to writing the hash value of the digital watermark into the block chain as the information of the digital watermark, other data capable of uniquely identifying the digital watermark may be written into the block chain as the information of the digital watermark, where the data may be identification data extracted from the digital watermark or may be other data.
210. And acquiring the digital watermark to be matched according to the digital asset to be tested uploaded by the user.
Wherein the user is different from the purchaser, the user having a registered account that is successfully registered with the digital asset trading platform. The digital asset to be tested uploaded by the user can be obtained by the user through a buyer of the digital asset, for example, the buyer illegally sells and spreads the purchased digital asset so that the user obtains the digital asset to be tested; in addition, the digital asset to be tested can also be obtained by a user through other ways, and the acquisition source of the digital asset to be tested is not limited in the embodiment of the invention.
Specifically, the process may include:
and extracting the digital watermark to be matched from the digital asset to be tested embedded with the digital watermark to be matched, wherein the extraction process can be completed by selecting a proper extraction algorithm in the prior art according to actual needs.
The embodiment of the present invention does not limit the specific acquisition process.
211. And carrying out Hash operation on the digital watermark to be matched to obtain a Hash value of the digital watermark to be matched.
Specifically, the process is similar to step 208 in this embodiment, and is not described here again.
212. And matching the hash value of the digital watermark to be matched with the hash value of the digital watermark in the block chain, if the matching is successful, executing the step 213, and if the matching is failed, executing the step 214.
Specifically, according to the hash value of the digital watermark to be matched, whether the hash value of the digital watermark identical to the hash value of the digital watermark to be matched exists is inquired in the block chain, if yes, the matching is successful, and if not, the matching fails. The embodiment of the present invention does not limit the specific matching process.
In the embodiment of the invention, after the purchaser purchases the digital assets, the digital assets can be illegally sold and illegally spread on the internet against the copyright requirement of a copyright party, and after a user receives or downloads the digital assets, the digital assets can be used as digital assets to be detected to carry out request detection on a digital transaction platform so as to determine whether the digital assets are infringing digital assets, thereby being convenient for discovering that the digital assets are infringed in time; in addition, the digital watermark corresponding to the digital asset has the characteristics of robustness and tamper resistance, so that the digital watermark is difficult to remove, modify or forge after a purchaser purchases the digital asset, and therefore whether the digital asset corresponding to the digital watermark is an infringing digital asset or not and whether the purchaser of the digital asset has infringement behavior or not can be reliably judged by matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain. Meanwhile, the integrity of the digital watermark to be matched can be checked by the hash value of the digital watermark to be matched, so that the reliability of the digital asset infringement detection is further improved.
213. And judging that the digital assets to be detected are infringing digital assets, and judging that the buyer corresponding to the digital watermark has infringement behavior. After step 213, step 215 and/or step 216 are performed.
Specifically, according to the digital watermark matched with the digital watermark to be matched, a purchaser corresponding to the digital watermark is determined, and it is determined that the purchaser has an infringement behavior.
The present invention does not limit the specific determination process.
214. And judging the digital assets to be detected as non-infringing digital assets.
It should be noted that steps 211 to 214 are processes for determining whether there is an infringement behavior for the purchaser corresponding to the digital watermark by matching the information of the digital watermark to be matched with the information of the digital watermark in the block chain, and the processes may be implemented in other ways besides the above-mentioned steps, and the specific way of the embodiment of the present invention is not limited.
215. And reversely solving the private key of the new account according to the private key ciphertext in the block chain and the key stored offline, and transferring the anti-infringement cost in the new account to the user according to the private key.
Specifically, the process may include:
when the digital watermark is judged to be corresponding to the buyer, determining a new account of the buyer according to the buyer with the infringement behavior;
acquiring a private key ciphertext stored in a block chain and acquiring a key stored offline;
decrypting the private key ciphertext through the secret key to obtain a private key of the new account;
acquiring anti-infringement cost in the new account according to the private key of the new account;
and transferring the anti-infringement fee to the user according to the registered account of the user.
It should be noted that, the process of sending the public key and the private key of the new account to the user may be directly sending the public key and the private key of the new account to the user, or sending the public key and the private key of the new account to the user after receiving the anti-infringement cost issuing request of the user, which is not limited in this embodiment of the present invention.
It should be noted that step 215 is an optional step, and if step 206 is executed in the embodiment of the present invention, step 215 needs to be executed after step 213.
In the embodiment of the invention, when the digital watermark is judged to have infringement behavior, the private key of a new account is obtained according to the private key ciphertext in the block chain and the off-line stored key, and the anti-infringement cost in the new account is transferred to a user according to the private key to be used as the reward for the user to reveal the infringement of the digital asset; meanwhile, under the incentive of the reward of the anti-infringement cost, more users can be attracted to carry out digital asset infringement detection, so that the digital asset infringement can be found in time conveniently.
216. Recording infringement information of the purchaser in the blockchain, and transmitting the infringement information to the copyright side.
Specifically, the embodiment of the present invention does not limit the specific recording process.
In the embodiment of the invention, the infringement information of the purchaser is recorded in the block chain, and the infringement information is sent to the copyright party, so that the copyright party can know that the digital asset is infringed in time and confirm the identity information of the infringement party, and further the infringement behavior of the digital asset can be effectively restrained.
It should be noted that, if step 215 is executed, the execution sequence of step 215 and step 216 is not specifically limited in the embodiment of the present invention, and in practical applications, it is preferable that step 215 and step 216 are executed simultaneously, so as to further facilitate the copyright side to protect the copyright of the digital asset and to attack the digital asset infringement in time.
The embodiment of the invention provides a block chain-based digital asset infringement judgment method, wherein a digital watermark is generated according to the digital asset and the identity identification of a purchaser, the digital watermark corresponds to the digital asset, the information of the digital watermark is written into a block chain with non-falsification and traceable characteristics, and the information of the digital watermark of a digital asset to be detected uploaded by a user is matched with the information of the digital watermark in the block chain, so that whether the digital asset corresponding to the digital watermark is an infringement digital asset or not can be reliably judged, whether the purchaser of the digital asset has infringement behavior or not can be judged, the infringement of the digital asset of a copyright party can be timely found, and when the infringement is found, the purchaser serving as an infringement person can be accurately determined, and the copyright of the digital asset can be protected and the digital infringement can be attacked.
EXAMPLE III
An embodiment of the present invention provides a block chain-based digital asset infringement determination apparatus, and as shown in fig. 3, the apparatus 300 includes:
a generating module 301, configured to generate a digital watermark corresponding to a digital asset according to the digital asset successfully purchased by the purchaser and the identity of the purchaser;
a writing module 302, configured to write information of the digital watermark into the block chain;
an obtaining module 303, configured to obtain a digital watermark to be matched according to the digital asset to be tested that is uploaded by a user, where the user is different from a buyer;
and the matching determination module 304 is configured to match the information of the digital watermark to be matched with the information of the digital watermark in the block chain, so as to determine whether an infringement action exists in the purchaser corresponding to the digital watermark.
Optionally, the apparatus 300 further comprises:
the verification module 305 is configured to verify whether the buyer meets a transaction condition preset by a copyright owner of the digital asset according to an intelligent contract preset by the blockchain;
a payment module 306 for paying the token used by the purchaser for purchasing the digital asset to the copyright party if the verification by the verification module is passed;
and an indication output module 307, configured to output a transaction rejection indication if the verification module fails to verify the transaction.
Optionally, the identity is a new account of the purchaser, and the generating module 301 includes:
an extraction submodule 3011, configured to extract feature information of the digital asset;
a create sub-module 3012 for creating a new account associated with the purchaser;
and the generating sub-module 3013 is configured to generate a digital watermark according to the feature information and the new account.
Optionally, the writing module 302 includes:
a first operation obtaining sub-module 3021, configured to perform a hash operation on the digital watermark to obtain a hash value of the digital watermark;
the write submodule 3022 is configured to write the hash value as information of the digital watermark into the block chain.
Optionally, the matching judgment module 304 includes:
a second operation obtaining sub-module 3041, configured to perform a hash operation on the digital watermark to be matched, so as to obtain a hash value of the digital watermark to be matched;
a matching submodule 3042, configured to match the hash value of the digital watermark to be matched with the hash value of the digital watermark in the block chain;
a determining submodule 3043, configured to determine, if the matching submodule is successfully matched, that the digital asset to be detected is an infringing digital asset, determine that an infringing behavior exists in a buyer corresponding to the digital watermark, and determine, if the matching submodule is failed, that the digital asset to be detected is a non-infringing digital asset.
Optionally, the apparatus 300 further comprises a first transfer-in module 308,
a first transfer module 308, configured to transfer the anti-infringement fee pre-provided by the copyright owner of the digital asset to a new account;
the writing module 302 is further configured to write the public key of the new account into the blockchain, encrypt the private key of the new account with the key to generate a private key ciphertext, store the private key ciphertext in the blockchain, and store the key offline.
Optionally, the apparatus 300 further comprises:
the inverse solution module 309 is configured to, when the matching determination module determines that the buyer corresponding to the digital watermark has an infringement behavior, inversely solve the private key of the new account according to the private key ciphertext in the block chain and the key stored offline;
and a second transfer module 310, configured to transfer the anti-piracy cost in the new account to the user according to the private key.
Optionally, the apparatus 300 further comprises:
the recording module 311 is configured to record infringement information of the purchaser in the block chain when the matching determination module determines that the purchaser corresponding to the digital watermark has an infringement behavior;
a sending module 312, configured to send the infringement information to the copyright side.
The apparatus shown in fig. 3 may be located on a server.
The embodiment of the invention provides a block chain-based digital asset infringement judgment device, wherein a digital watermark is generated according to the digital asset and the identity identification of a purchaser, the digital watermark corresponds to the digital asset, the information of the digital watermark is written into a block chain with non-falsification and traceable characteristics, and the information of the digital watermark of the digital asset to be detected uploaded by a user is matched with the information of the digital watermark in the block chain, so that whether the digital asset corresponding to the digital watermark is an infringement digital asset or not can be reliably judged, whether the purchaser of the digital asset has infringement behavior or not can be judged, the infringement of the digital asset of a copyright party can be timely found, and when the infringement is found, the purchaser serving as an infringement person can be accurately determined, and the copyright of the digital asset can be protected and the digital infringement can be attacked.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, when the block chain-based digital asset infringement determination apparatus provided in the foregoing embodiment executes the block chain-based digital asset infringement determination method, only the division of the functional modules is illustrated, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the apparatus may be divided into different functional modules, so as to complete all or part of the functions described above. In addition, the block chain-based digital asset infringement determination device provided in the above embodiment and the block chain-based digital asset infringement determination method embodiment belong to the same concept, and specific implementation processes thereof are detailed in the method embodiment and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by associated hardware through a program, and the program may be stored in a computer readable storage medium, and the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.