Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a blockchain-based right protection. One of the methods includes: sending, to a blockchain network, a request for verifying a right to access a digital product, the request comprising identity information associated with a target user; receiving, from the blockchain network, a response comprising a result of verifying the right to access the digital product based on the identity information associated with the target user; in response to the result being that the verifying the right to access the digital product is successful, determining identification information for tracing the target user; and embedding the identification information for tracing the target user in content associated with the digital product.