Blockchain-based copyright distribution

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:

• receiving, by a node device of a blockchain network comprising a blockchain, a target transaction comprising design data of a target work and an identity of a target copyright user corresponding to the target work;
• invoking a first smart contract that stores design data of an existing work;
• in response to invoking the first smart contract, executing design similarity comparison logic and copyright distribution logic that are declared by the first smart contract;
• in response to executing the design similarity comparison logic and the copyright distribution logic, comparing the design data of the target work with the design data of the existing work stored in the first smart contract to obtain a target similarity between the target work and the existing work, wherein comparing the design data of the target work with the design data of the existing work stored in the first smart contract to obtain the target similarity comprises:
• obtaining at least one target design characteristic value of the target work based on the design data of the target work and a preset design rule;
• obtaining at least one existing design characteristic value of the existing work based on the design data of the existing work and the preset design rule;
• and
• comparing the at least one target design characteristic value with the at least one existing design characteristic value to obtain the target similarity;
• distributing a copyright for the target work between the target copyright user and a copyright user corresponding to the existing work based on the target similarity;
• and
• storing, in the first smart contract, copyright distribution data that specifies distribution of the copyright between the target copyright user and the copyright user corresponding to the existing work.

A computer-implemented system, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
• receiving, by a node device of a blockchain network comprising a blockchain, a target transaction comprising design data of a target work and an identity of a target copyright user corresponding to the target work;
• invoking a first smart contract that stores design data of an existing work;
• in response to invoking the first smart contract, executing design similarity comparison logic and copyright distribution logic that are declared by the first smart contract;
• in response to executing the design similarity comparison logic and the copyright distribution logic, comparing the design data of the target work with the design data of the existing work stored in the first smart contract to obtain a target similarity between the target work and the existing work, wherein comparing the design data of the target work with the design data of the existing work stored in the first smart contract to obtain the target similarity comprises:
• obtaining at least one target design characteristic value of the target work based on the design data of the target work and a preset design rule;
• obtaining at least one existing design characteristic value of the existing work based on the design data of the existing work and the preset design rule;
• and
• comparing the at least one target design characteristic value with the at least one existing design characteristic value to obtain the target similarity;
• distributing a copyright for the target work between the target copyright user and a copyright user corresponding to the existing work based on the target similarity;
• and
• storing, in the first smart contract, copyright distribution data that specifies distribution of the copyright between the target copyright user and the copyright user corresponding to the existing work.