Blockchain-based data transaction method, data transaction device and system
A transaction device and transaction method technology, applied in the field of data processing, can solve the problems of low purchase efficiency and low purchase security
Pending Publication Date: 2020-01-07
SHENZHEN THUNDER NETWORK TECH +1
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[0005] The main purpose of the present invention is to provide a blockchain-based data transaction method, data transaction device and system, aiming to solve the problems of low purchase efficiency and low purchase security in the way of purchasing training data offline
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[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0046] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...
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The invention discloses a blockchain-based data transaction method. A first data transaction device publishes a data pre-sale plan by using a blockchain smart contract; the second data transaction device purchases to-be-sold data through the blockchain smart contract; the first data transaction device encrypts the to-be-sold data and uploads the encrypted to-be-sold data to the file system, and uploads a hash value corresponding to the to-be-sold data and / or a hash value corresponding to the encrypted to-be-sold data to the blockchain; and the second data transaction device downloads the encrypted to-be-sold data from the file system and decrypts the encrypted to-be-sold data. The invention further discloses a data transaction device and a data transaction system based on the blockchain. In the method, a seller encrypts the to-be-sold data and uploads the encrypted to-be-sold data to the file system. The buyer and the seller buy and sell the to-be-sold data through the blockchain smartcontract, and after the buyer obtains the purchase certificate of the blockchain smart contract, the buyer downloads the encrypted to-be-sold data from the file system and decrypts the encrypted to-be-sold data, thereby improving the data purchase efficiency and security.
Description
technical field [0001] The present invention relates to the technical field of data processing, in particular to a blockchain-based data transaction method, data transaction device and system. Background technique [0002] With the development of science and technology, artificial intelligence is gradually being widely used. Before artificial intelligence is applied, it needs to be trained with a large amount of training data, and the training data usually needs to be purchased from data sellers. [0003] The current way to purchase training data from data sellers is to purchase corresponding training data by copying training data offline. But on the one hand, due to geographical influence, the data buyer needs to go to the region where the data seller is located to copy the training data, and the efficiency of purchasing training data is very low. On the other hand, due to the lack of copy certificates for offline copying of training data, when a dispute arises between th...
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IPC IPC(8): G06Q40/04G06Q20/38G06F21/60
CPCG06Q40/04G06Q20/3829G06Q20/3827G06F21/602
Inventor 张骁来鑫李武璐
Owner SHENZHEN THUNDER NETWORK TECH