CN107622385A - A digital work distribution method based on blockchain smart contracts - Google Patents

Abstract

The invention discloses a kind of copyright distributing method based on block chain intelligence contract, it includes creator's node by uploading works original to accumulation layer, then the intelligent contract containing works essential information is disposed into block chain network, and broadcasted by the whole network of knowing together, each user node accesses works original by calling the modules function of intelligent contract.The present invention is based on block chain intelligence contract technology, with decentralization, it is open and clear, can not distort, convenient retrospect, authentic data storehouse the characteristics of, any one is connected to block chain network, and there is the use of block chain digital wallet can dispose the intelligent contract of oneself per family, and then issues and manage the original works of oneself.The problem of the method overcome serious existing digital distribution method centralization, distribution Payment System very complicated.

Description

Translated fromChinese

一种基于区块链智能合约的数字作品发行方法A digital work distribution method based on blockchain smart contracts

技术领域technical field

本发明涉及区块链智能合约领域，尤其涉及一种基于区块链智能合约的数字作品发行方法。The present invention relates to the field of block chain smart contracts, in particular to a method for issuing digital works based on block chain smart contracts.

背景技术Background technique

在现有的数字作品发行方法是基于中心化节点的，创作者发行一部作品并获得相应收益要经过一连串的中间机构。即创作公司或者创作者将自己的数字作品交于流媒体平台(网络服务商)，再由平台推广、发售给观众，同时作品的收益又要经过版权代理方、网络流媒体服务商等多方才能最终才能到达创作者手里，并不能直接的管理自己作品的发行。The existing distribution methods of digital works are based on centralized nodes, and creators need to go through a series of intermediary institutions to distribute a work and obtain corresponding benefits. That is to say, the creative company or creator submits their digital works to the streaming media platform (network service provider), and then the platform promotes and sells them to the audience. In the end, it can reach the creators, and they cannot directly manage the distribution of their own works.

另外创作者线下对自己作品的确权过程繁琐复杂周期长，同时由于互联网的特点，数字作品的盗版以及非法获取盛行，原创作品支付体系复杂，因而许多创作者受到发行公司以及流媒体平台的不公平对待，导致最终创作者得到的报酬甚微，给创作者的创作动力造成了极大地损害。In addition, the process for creators to confirm the rights of their own works offline is cumbersome and complicated, and the period is long. At the same time, due to the characteristics of the Internet, piracy and illegal acquisition of digital works are prevalent, and the payment system for original works is complicated. Therefore, many creators are restricted by distribution companies and streaming media platforms. Unfair treatment resulted in very little remuneration for the creators, which greatly damaged the creative motivation of the creators.

随着比特币等数字加密货币的实现，区块链作为其背后的底层技术，具有去中心化、公开透明、无法篡改、方便追溯、可靠分布式数据库的特点。区块链是一串使用密码学方法相关联产生的数据块通过区块头部的哈希值相连，每一个数据块中包含了若干次网络交易的信息，同时每条交易信息都被盖上时间戳，记录在区块中，每笔交易可被查询并且无法更改。区块链技术采用非对称密码学算法对交易进行签名，用哈希算法保证交易数据不被篡改，借助分布式系统各节点的工作量证明等共识算法提高交易的性能，并抵御破坏者的攻击，具有极高的安全性。With the realization of digital cryptocurrencies such as Bitcoin, blockchain, as the underlying technology behind it, has the characteristics of decentralization, openness, transparency, tamper-proof, convenient traceability, and reliable distributed database. The blockchain is a series of data blocks generated by cryptographic methods and connected by the hash value of the block header. Each data block contains information about several network transactions, and each transaction information is covered. Timestamp, recorded in the block, each transaction can be queried and cannot be changed. Blockchain technology uses asymmetric cryptography algorithms to sign transactions, uses hash algorithms to ensure that transaction data is not tampered with, and uses consensus algorithms such as proof of work for each node in the distributed system to improve transaction performance and resist attacks from saboteurs , with high security.

智能合约是90年代由Nick Szabo提出的理念，当时由于缺少可信的安全执行环境，智能合约并没有被应用到实际产业中。智能合约是可部署在区块链上的交易协议，可预先设定触发条件、规则及事件信息，一旦被部署在区块链中自动执行，根据触发条件做出相应的反馈。其具有实时更新、准确执行、低人为干预、低运行成本的特点。Smart contract is a concept proposed by Nick Szabo in the 1990s. At that time, due to the lack of a credible and secure execution environment, smart contracts were not applied to the actual industry. A smart contract is a transaction protocol that can be deployed on the blockchain. It can pre-set trigger conditions, rules, and event information. Once deployed in the blockchain, it will be automatically executed, and corresponding feedback will be made according to the trigger conditions. It has the characteristics of real-time update, accurate execution, low human intervention, and low operating cost.

Ethereum又称作以太坊，是一个带有图灵完备的区块链开发平台，在此平台上可以以自定规则逻辑开发应用，在以太坊上的数字货币称为以太货币，为前所未有的去中心化应用打开了大门，同时也是智能合约的完整解决方案。Ethereum, also known as Ethereum, is a blockchain development platform with Turing completeness. On this platform, applications can be developed with self-defined rule logic. The digital currency on Ethereum is called Ether currency, which is unprecedented. Centralized applications open the door, as well as complete solutions for smart contracts.

区块链的公开透明、无法篡改、方便追溯的特点天然的为作品的确权省去的繁杂的步骤，而智能合约的可编程易操作性使得创作者能更直接的管理自己的作品。The openness, transparency, tamper-proof, and convenient traceability of the blockchain naturally save the complicated steps for confirming the rights of works, while the programmable and easy-to-operate smart contracts allow creators to manage their works more directly.

发明内容Contents of the invention

针对以上问题本发明提出一种数字作品发行、确权方法过程简单的基于区块链智能合约的数字作品发行方法。In view of the above problems, the present invention proposes a digital work distribution method based on blockchain smart contracts with a simple process of digital work distribution and confirmation method.

为了解决以上问题，本发明采用了如下技术方案：一种基于区块链智能合约的数字作品发行方法，其特征在于，包括以下内容：In order to solve the above problems, the present invention adopts the following technical solution: a method for issuing digital works based on blockchain smart contracts, which is characterized in that it includes the following content:

步骤1：创作者节点对自己的作品进行数字签名，然后上传自己的作品至区块链的存储层，同时创作者会得到一个加密哈希；Step 1: The creator node digitally signs his work, and then uploads his work to the storage layer of the blockchain, and the creator will get an encrypted hash at the same time;

步骤2：创作者利用区块链数字钱包程序的生成模块生成含有作品哈希值的作品合约，并且对该合约进行数字签名；Step 2: The creator uses the generation module of the blockchain digital wallet program to generate a work contract containing the hash value of the work, and digitally signs the contract;

步骤3：创作者节点在区块链中部署作品合约，获得合约的地址以及调用合约所需的接口，并在全网广播；在合约被部署到区块链网络中时，所有用户应对合约的签名等有效性进行验证，验证通过，则发行成功，否则发行失败；Step 3: The creator node deploys the work contract in the blockchain, obtains the address of the contract and the interface required to call the contract, and broadcasts it on the entire network; when the contract is deployed in the blockchain network, all users should Verify the validity of the signature, etc., if the verification is passed, the issuance is successful, otherwise the issuance fails;

步骤4：各用户节点可通过作品合约的调用接口了解作品信息，并通过作品合约的购买模块向合约地址发送既定数量的数字货币请求访问作品原文件，同时区块链会在区块中记录下每笔交易，发行数量减1；Step 4: Each user node can understand the work information through the calling interface of the work contract, and send a predetermined amount of digital currency to the contract address through the purchase module of the work contract to request access to the original file of the work, and the blockchain will record it in the block For each transaction, the issuance amount is reduced by 1;

步骤5：当交易信息被验证成功，则授权该节点的访问权限，即获得该文件在区块链中的hash值，用户节点通过调用合约的请求访问模块，输入获得的hash值来访问文件，否则返回错误信息。Step 5: When the transaction information is successfully verified, the access authority of the node is authorized, that is, the hash value of the file in the blockchain is obtained. The user node accesses the file by calling the request access module of the contract and inputting the obtained hash value. Otherwise return an error message.

步骤1所述的创作者在上传自己的作品时，会获得原文件经SHA-256算法获得的哈希值；区块中只存储原作品的哈希值，原文件连同文件哈希值则放在区块链中的存储层，存储层通过与智能合约的接口相连。When the creator mentioned in step 1 uploads his work, he will get the hash value of the original file obtained by the SHA-256 algorithm; only the hash value of the original work is stored in the block, and the original file together with the file hash value is stored In the storage layer in the blockchain, the storage layer is connected through the interface with the smart contract.

步骤2所述的作品合约包括作品标识“Creative Work”、信息模块、购买模块、访问模块；其中，当调用信息模块时，会返回当前作品的基本信息、价格、发行数量以及剩余数量；当调用购买模块时，用户节点只能发送规定的数字货币“即发行价格”来完成交易，同时区块链会记录下交易信息盖上时间戳，写入区块中，并返回作品合约中的作品hash值；当调用请求访问模块时，用户通过输入获得的hash值来访问作品原文件。The work contract described in step 2 includes the work identification "Creative Work", an information module, a purchase module, and an access module; wherein, when the information module is called, it will return the basic information, price, issued quantity and remaining quantity of the current work; when called When purchasing a module, the user node can only send the specified digital currency "issuing price" to complete the transaction. At the same time, the blockchain will record the transaction information, stamp it with a time stamp, write it into the block, and return the hash of the work in the work contract value; when calling the request access module, the user can access the original file of the work by inputting the obtained hash value.

步骤3所述验证的过程包括对其数字签名、哈希值有效性、合约有效性进行验证，验证通过，则通过共识运算，即发布成功；同时广播信息包括作品简介以及访问方法。The verification process described in step 3 includes verifying the validity of its digital signature, hash value, and contract. If the verification is passed, it will pass the consensus operation, that is, the release is successful; at the same time, the broadcast information includes the introduction of the work and the access method.

步骤3所述的合约：合约发布后，只有创作者节点能对其中的既定规则进行修改，包括基本信息、价格、数量、是否开放购买、开放访问。The contract described in step 3: After the contract is issued, only the creator node can modify the established rules, including basic information, price, quantity, whether to open purchase, and open access.

步骤4所述的当用户节点向作品合约地址发送数字货币时，只能发送规定价格的数字货币数量，否则发送失败；合约通过验证用户节点发送的数字货币数量与规定价格的一致性，同时判断该次交易是否超过作品合约中的发行数量数值，两项均验证通过则返回给用户作品的hash值，并在区块中记录该次交易，并记录区块号；当作品价格规定为免费，即可直接请求访问；任何一项验证不通过，则返回错误信息。As described in step 4, when the user node sends digital currency to the contract address of the work, it can only send the amount of digital currency at the specified price, otherwise the sending fails; the contract verifies the consistency between the amount of digital currency sent by the user node and the specified price, and at the same time judges Whether the transaction exceeds the value of the issued quantity in the work contract, if both items are verified, the hash value of the work will be returned to the user, and the transaction will be recorded in the block, and the block number will be recorded; when the price of the work is stipulated as free, You can directly request access; if any verification fails, an error message will be returned.

所述步骤5的具体内容为：合约通过验证用户输入的hash值与存储层中原文件的hash值的一致性，同时验证上一步写入区块中有效交易信息，两项验证均通过，则授权该节点访问原文件；验证中任意两项不通过，均返回错误信息，授权失败。The specific content of step 5 is: the contract verifies the consistency between the hash value input by the user and the hash value of the original file in the storage layer, and at the same time verifies the valid transaction information written in the block in the previous step. If both verifications pass, the authorization The node accesses the original file; if any two items in the verification fail, an error message is returned, and the authorization fails.

本发明解决了现有的数字发行方法的中心化严重、中间环节冗长复杂的问题，使得创作者通过智能合约能更直接管理自己的数字作品，以及更强的自由性。本发明在其中发生的每笔交易都会被记录在区块中，由于区块链技术的透明化、不可篡改的特点，每笔交易都追溯可查，更方便用户监督盗版以及侵权等问题。The present invention solves the problems of serious centralization and lengthy and complicated intermediate links in the existing digital distribution method, enabling creators to manage their own digital works more directly and have greater freedom through smart contracts. Every transaction that occurs in the present invention will be recorded in the block. Due to the transparent and non-tamperable characteristics of blockchain technology, every transaction can be traced and checked, which is more convenient for users to monitor piracy and infringement.

附图说明Description of drawings

图1为本发明数字作品发行办法的模型示意图；Fig. 1 is a schematic diagram of a model of the method for issuing digital works of the present invention;

图2为作品合约模型示意图；Figure 2 is a schematic diagram of the work contract model;

图3为作品合约的购买模块流程示意图。Figure 3 is a flow diagram of the purchase module of the work contract.

具体实施方式detailed description

下面将详细说明本发明，下面结合附图以及具体实施方式对本发明的技术方案进行详细说明，此处所描述的具体实例仅仅用于解释本发明，但并不作为本发明的限定。The present invention will be described in detail below, and the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The specific examples described here are only used to explain the present invention, but not as a limitation of the present invention.

本发明提供了一种基于区块链智能合约的数字作品发行方法，具体实现过程如下：The present invention provides a method for issuing digital works based on blockchain smart contracts, and the specific implementation process is as follows:

首先，该数字作品发布方法的运作模式如图1。First, the operating mode of the method for publishing digital works is shown in Figure 1.

创作者作为发布作品的源头，在完成数字作品时，作者在作品上进行数字签名，并使用区块链的上传功能将作品上传至存储层，存储层返回创作者该作品的hash值，同时作品原文件会连同hash值一同放入存储层。The creator is the source of the published work. When the digital work is completed, the author digitally signs the work and uses the upload function of the blockchain to upload the work to the storage layer. The storage layer returns the hash value of the work to the creator. At the same time, the work The original file will be put into the storage layer together with the hash value.

创作者通过区块链数字钱包生成模块生成含有作品哈希值的智能合约(下面统称作品合约)，此作品hash值仅创作者可见，并将作品的简介、发行数量、发行价格写入合约的信息模块。作品合约模块示意图如图2。写入完成后，创作者将智能合约部署到区块链网络中，各用户节点通过数字钱包程序对该作品合约有效性进行验证，验证通过，则作品合约发行成功，并在全网广播，各用户可调用该合约功能。具体验证过程为：先验证合约的作品标识为“Creative Work”，发行数量不为0，然后再验证合约地址以及合约的数字签名与创作者节点是否一致。The creator generates a smart contract containing the hash value of the work through the block chain digital wallet generation module (hereinafter collectively referred to as the work contract). information module. The schematic diagram of the work contract module is shown in Figure 2. After the writing is completed, the creator deploys the smart contract to the blockchain network, and each user node verifies the validity of the work contract through the digital wallet program. If the verification is passed, the work contract is issued successfully and broadcast on the entire network. Users can call the contract function. The specific verification process is: first verify that the work of the contract is identified as "Creative Work" and the number of issuances is not 0, and then verify whether the contract address and the digital signature of the contract are consistent with the creator node.

合约部署成功后，各用户节点可利用所述合约的信息模块对发行的作品进行了解，节点通过调用信息模块会返回给用户该作品的简介、价格以及发行数量等信息，当有购买的意向可调用合约的购买模块功能。After the contract is successfully deployed, each user node can use the information module of the contract to understand the released works, and the node will return to the user information such as the introduction, price, and distribution quantity of the work by calling the information module. When there is an intention to purchase, you can Call the purchase module function of the contract.

当某用户节点希望访问该作品，他需要调用该作品合约的购买模块，通过区块链数字钱包向该作品合约的合约地址一次性发送规定数量的数字货币，即作品的发行价格。合约过判断收到的数字货币数量与发行价格的一致性，同时判断发行数量的数值大于0，两项判断均通过即返回该作品的作品hash值，即交易成功，会在区块链中记录下这笔交易，合约记录下该笔交易所在的区块号。合约的购买模块流程图如图3。When a user node wants to access the work, he needs to call the purchase module of the work contract, and send a specified amount of digital currency at one time to the contract address of the work contract through the blockchain digital wallet, that is, the issue price of the work. The contract judges the consistency between the amount of digital currency received and the issuance price, and at the same time judges that the value of the issued amount is greater than 0. If both judgments pass, the hash value of the work will be returned, that is, the transaction is successful and will be recorded in the blockchain. After the transaction is made, the contract records the block number of the transaction. The flow chart of the purchase module of the contract is shown in Figure 3.

该用户收到作品的hash值后，继续调用合约的访问模块来访问原文件，用户需输入收到的作品hash值，验证通过，即可获得原作品文件的访问地址。合约验证过程包括作品hash值的一致性，以及该用户节点在区块中交易的有效交易信息。After receiving the hash value of the work, the user continues to call the access module of the contract to access the original file. The user needs to enter the hash value of the received work and pass the verification to obtain the access address of the original work file. The contract verification process includes the consistency of the hash value of the work and the valid transaction information of the user node's transaction in the block.

上述对实施例所提供的技术方案进行了详细介绍，是为便于本技术领域的普通技术人员能理解和应用本发明，同时对于本领域的一般技术人员，依据本发明实施例，再具体试试方式以及应用范围上均会用改变之处，综上所述，本说明书内容不应理解为对本发明的限制。The technical solutions provided by the above-mentioned embodiments are described in detail, so that those of ordinary skill in the art can understand and apply the present invention. There will be changes in the manner and scope of application. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (7)

1. a kind of copyright distributing method based on block chain intelligence contract, it is characterised in that including herein below：

Step 1：Creator's node is digitally signed to the works of oneself, then uploads storage of the works of oneself to block chainLayer, while creator can obtain a cryptographic Hash；

Step 2：Creator generates the works contract containing works cryptographic Hash using the generation module of block chain digital wallet program,And the contract is digitally signed；Step 3：Creator's node disposes works contract in block chain, obtains the ground of contractInterface needed for location and calling contract, and broadcasted in the whole network；When contract is deployed in block chain network, all users shouldThe validity such as the signature to contract are verified, are verified, then are issued successfully, otherwise distribution failure；

Step 4：Each user node can understand works information by the calling interface of works contract, and pass through the purchase of works contractThe digital cash request that module sends given amount to contract address accesses works original, while block chain can be remembered within a blockRecord is lower per transaction, and issuing amount subtracts 1；

Step 5：When Transaction Information is verified success, then the access rights of the node are authorized, that is, obtain this document in block chainHash values, user node inputs the hash values of acquisition to access file, otherwise returns by calling the request access modules of contractReturn error message.

A kind of 2. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatCreator described in step 1 can obtain the cryptographic Hash that original obtains through SHA-256 algorithms when uploading the works of oneself；AreaThe cryptographic Hash of original works is only stored in block, original is then placed on the accumulation layer in block chain together with file cryptographic Hash, and accumulation layer is led toCross and be connected with the interface of intelligent contract.

A kind of 3. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatWorks contract described in step 2 includes works mark " Creative Work ", information module, purchase module, access modules；ItsIn, when recalls information module, essential information, price, issuing amount and the volume residual of instant work can be returned, works as callingWhen buying module, user node can only send defined digital cash " i.e. issue price " to complete to merchandise, while block chain meetingRecord Transaction Information and cover timestamp, write in block, and return to the works hash values in works contract；When call request is visitedWhen asking module, user accesses works original by inputting the hash values obtained.

A kind of 4. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatThe process verified described in step 3 include its digital signature, cryptographic Hash validity, contract validity are verified, be verified,Then by computing of knowing together, that is, issue successfully；Broadcast message includes works brief introduction and access method simultaneously.

A kind of 5. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatContract described in step 3：After contract issue, only creator's node can modify to established rule therein, including basicInformation, price, quantity, whether open purchase, open visit etc..

A kind of 6. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatDescribed in step 4 when user node sends digital cash to works contract address, the digital cash of fixing the price can only be sentQuantity, otherwise send failure；Contract is by verifying the digital cash quantity of user node transmission and the uniformity of fixing the price, togetherWhen judge this transaction whether exceed works contract in issuing amount numerical value, two are verified, and return to user's worksHash values, and record this transaction within a block, and record block number；When works price discipline is free, you can directly pleaseAsk access；Any one is verified not by then returning to error message.

A kind of 7. copyright distributing method based on block chain intelligence contract according to claim 1, it is characterised in thatThe particular content of the step 5 is：The hash values of original in hash values and accumulation layer that contract is inputted by verifying userUniformity, while effective Transaction Information in previous step write-in block is verified, two checkings are by then authorizing the node visit formerFile；In checking any two not by returning to error message, authorization failure.