The application provides a copyright incentive protection method and
system based on a
directed acyclic graph and a decay model, and belongs to the technical field of blockchains. The method comprises the following steps:
system initialization, defining participating nodes in a copyright incentive protection platform, including user nodes, platform
verification nodes, incentive distribution nodes and audit nodes; defining a DAG graph for expressing a propagation relationship and a copyright node index
database structure; according to original works and derivative works uploaded by user nodes, using a
smart contract, calling the copyright node index
database to perform on-chain transactions, updating index data and incentive
record tables of the copyright node index
database, and updating the DAG graph according to reference behaviors between works; defining an integral calculation rule for the nodes, adjusting calculation parameters according to a propagation index, adjusting the total value of author integrals, calculating incentive distribution in combination with a propagation path, realizing linkage between secondary creation benefits and original author contributions, ensuring that the original author obtains benefits in each derivative propagation, and realizing fair tracing and continuous benefit distribution.